diff options
Diffstat (limited to 'libs/assimp/code/AssetLib/FBX/FBXConverter.cpp')
| -rw-r--r-- | libs/assimp/code/AssetLib/FBX/FBXConverter.cpp | 3679 |
1 files changed, 0 insertions, 3679 deletions
diff --git a/libs/assimp/code/AssetLib/FBX/FBXConverter.cpp b/libs/assimp/code/AssetLib/FBX/FBXConverter.cpp deleted file mode 100644 index 3287210..0000000 --- a/libs/assimp/code/AssetLib/FBX/FBXConverter.cpp +++ /dev/null @@ -1,3679 +0,0 @@ -/* -Open Asset Import Library (assimp) ----------------------------------------------------------------------- - -Copyright (c) 2006-2022, assimp team - -All rights reserved. - -Redistribution and use of this software in source and binary forms, -with or without modification, are permitted provided that the -following conditions are met: - -* Redistributions of source code must retain the above - copyright notice, this list of conditions and the - following disclaimer. - -* Redistributions in binary form must reproduce the above - copyright notice, this list of conditions and the - following disclaimer in the documentation and/or other - materials provided with the distribution. - -* Neither the name of the assimp team, nor the names of its - contributors may be used to endorse or promote products - derived from this software without specific prior - written permission of the assimp team. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - ----------------------------------------------------------------------- -*/ - -/** @file FBXConverter.cpp - * @brief Implementation of the FBX DOM -> aiScene converter - */ - -#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER - -#include "FBXConverter.h" -#include "FBXDocument.h" -#include "FBXImporter.h" -#include "FBXMeshGeometry.h" -#include "FBXParser.h" -#include "FBXProperties.h" -#include "FBXUtil.h" - -#include <assimp/MathFunctions.h> -#include <assimp/StringComparison.h> - -#include <assimp/scene.h> - -#include <assimp/CreateAnimMesh.h> -#include <assimp/StringUtils.h> -#include <assimp/commonMetaData.h> - -#include <stdlib.h> -#include <cstdint> -#include <iomanip> -#include <iostream> -#include <iterator> -#include <memory> -#include <sstream> -#include <tuple> -#include <vector> - -namespace Assimp { -namespace FBX { - -using namespace Util; - -#define MAGIC_NODE_TAG "_$AssimpFbx$" - -#define CONVERT_FBX_TIME(time) static_cast<double>(time) / 46186158000LL - -FBXConverter::FBXConverter(aiScene *out, const Document &doc, bool removeEmptyBones) : - defaultMaterialIndex(), - mMeshes(), - lights(), - cameras(), - textures(), - materials_converted(), - textures_converted(), - meshes_converted(), - node_anim_chain_bits(), - mNodeNames(), - anim_fps(), - mSceneOut(out), - doc(doc), - mRemoveEmptyBones(removeEmptyBones) { - // animations need to be converted first since this will - // populate the node_anim_chain_bits map, which is needed - // to determine which nodes need to be generated. - ConvertAnimations(); - // Embedded textures in FBX could be connected to nothing but to itself, - // for instance Texture -> Video connection only but not to the main graph, - // The idea here is to traverse all objects to find these Textures and convert them, - // so later during material conversion it will find converted texture in the textures_converted array. - if (doc.Settings().readTextures) { - ConvertOrphanedEmbeddedTextures(); - } - ConvertRootNode(); - - if (doc.Settings().readAllMaterials) { - // unfortunately this means we have to evaluate all objects - for (const ObjectMap::value_type &v : doc.Objects()) { - - const Object *ob = v.second->Get(); - if (!ob) { - continue; - } - - const Material *mat = dynamic_cast<const Material *>(ob); - if (mat) { - - if (materials_converted.find(mat) == materials_converted.end()) { - ConvertMaterial(*mat, 0); - } - } - } - } - - ConvertGlobalSettings(); - TransferDataToScene(); - - // if we didn't read any meshes set the AI_SCENE_FLAGS_INCOMPLETE - // to make sure the scene passes assimp's validation. FBX files - // need not contain geometry (i.e. camera animations, raw armatures). - if (out->mNumMeshes == 0) { - out->mFlags |= AI_SCENE_FLAGS_INCOMPLETE; - } -} - -FBXConverter::~FBXConverter() { - std::for_each(mMeshes.begin(), mMeshes.end(), Util::delete_fun<aiMesh>()); - std::for_each(materials.begin(), materials.end(), Util::delete_fun<aiMaterial>()); - std::for_each(animations.begin(), animations.end(), Util::delete_fun<aiAnimation>()); - std::for_each(lights.begin(), lights.end(), Util::delete_fun<aiLight>()); - std::for_each(cameras.begin(), cameras.end(), Util::delete_fun<aiCamera>()); - std::for_each(textures.begin(), textures.end(), Util::delete_fun<aiTexture>()); -} - -void FBXConverter::ConvertRootNode() { - mSceneOut->mRootNode = new aiNode(); - std::string unique_name; - GetUniqueName("RootNode", unique_name); - mSceneOut->mRootNode->mName.Set(unique_name); - - // root has ID 0 - ConvertNodes(0L, mSceneOut->mRootNode, mSceneOut->mRootNode); -} - -static std::string getAncestorBaseName(const aiNode *node) { - const char *nodeName = nullptr; - size_t length = 0; - while (node && (!nodeName || length == 0)) { - nodeName = node->mName.C_Str(); - length = node->mName.length; - node = node->mParent; - } - - if (!nodeName || length == 0) { - return {}; - } - // could be std::string_view if c++17 available - return std::string(nodeName, length); -} - -// Make unique name -std::string FBXConverter::MakeUniqueNodeName(const Model *const model, const aiNode &parent) { - std::string original_name = FixNodeName(model->Name()); - if (original_name.empty()) { - original_name = getAncestorBaseName(&parent); - } - std::string unique_name; - GetUniqueName(original_name, unique_name); - return unique_name; -} - -/// This struct manages nodes which may or may not end up in the node hierarchy. -/// When a node becomes a child of another node, that node becomes its owner and mOwnership should be released. -struct FBXConverter::PotentialNode -{ - PotentialNode() : mOwnership(new aiNode), mNode(mOwnership.get()) {} - PotentialNode(const std::string& name) : mOwnership(new aiNode(name)), mNode(mOwnership.get()) {} - aiNode* operator->() { return mNode; } - std::unique_ptr<aiNode> mOwnership; - aiNode* mNode; -}; - -/// todo: pre-build node hierarchy -/// todo: get bone from stack -/// todo: make map of aiBone* to aiNode* -/// then update convert clusters to the new format -void FBXConverter::ConvertNodes(uint64_t id, aiNode *parent, aiNode *root_node) { - const std::vector<const Connection *> &conns = doc.GetConnectionsByDestinationSequenced(id, "Model"); - - std::vector<PotentialNode> nodes; - nodes.reserve(conns.size()); - - std::vector<PotentialNode> nodes_chain; - std::vector<PotentialNode> post_nodes_chain; - - for (const Connection *con : conns) { - // ignore object-property links - if (con->PropertyName().length()) { - // really important we document why this is ignored. - FBXImporter::LogInfo("ignoring property link - no docs on why this is ignored"); - continue; //? - } - - // convert connection source object into Object base class - const Object *const object = con->SourceObject(); - if (nullptr == object) { - FBXImporter::LogError("failed to convert source object for Model link"); - continue; - } - - // FBX Model::Cube, Model::Bone001, etc elements - // This detects if we can cast the object into this model structure. - const Model *const model = dynamic_cast<const Model *>(object); - - if (nullptr != model) { - nodes_chain.clear(); - post_nodes_chain.clear(); - - aiMatrix4x4 new_abs_transform = parent->mTransformation; - std::string node_name = FixNodeName(model->Name()); - // even though there is only a single input node, the design of - // assimp (or rather: the complicated transformation chain that - // is employed by fbx) means that we may need multiple aiNode's - // to represent a fbx node's transformation. - - // generate node transforms - this includes pivot data - // if need_additional_node is true then you t - const bool need_additional_node = GenerateTransformationNodeChain(*model, node_name, nodes_chain, post_nodes_chain); - - // assert that for the current node we must have at least a single transform - ai_assert(nodes_chain.size()); - - if (need_additional_node) { - nodes_chain.emplace_back(PotentialNode(node_name)); - } - - //setup metadata on newest node - SetupNodeMetadata(*model, *nodes_chain.back().mNode); - - // link all nodes in a row - aiNode *last_parent = parent; - for (PotentialNode& child : nodes_chain) { - ai_assert(child.mNode); - - if (last_parent != parent) { - last_parent->mNumChildren = 1; - last_parent->mChildren = new aiNode *[1]; - last_parent->mChildren[0] = child.mOwnership.release(); - } - - child->mParent = last_parent; - last_parent = child.mNode; - - new_abs_transform *= child->mTransformation; - } - - // attach geometry - ConvertModel(*model, nodes_chain.back().mNode, root_node, new_abs_transform); - - // check if there will be any child nodes - const std::vector<const Connection *> &child_conns = doc.GetConnectionsByDestinationSequenced(model->ID(), "Model"); - - // if so, link the geometric transform inverse nodes - // before we attach any child nodes - if (child_conns.size()) { - for (PotentialNode& postnode : post_nodes_chain) { - ai_assert(postnode.mNode); - - if (last_parent != parent) { - last_parent->mNumChildren = 1; - last_parent->mChildren = new aiNode *[1]; - last_parent->mChildren[0] = postnode.mOwnership.release(); - } - - postnode->mParent = last_parent; - last_parent = postnode.mNode; - - new_abs_transform *= postnode->mTransformation; - } - } else { - // free the nodes we allocated as we don't need them - post_nodes_chain.clear(); - } - - // recursion call - child nodes - ConvertNodes(model->ID(), last_parent, root_node); - - if (doc.Settings().readLights) { - ConvertLights(*model, node_name); - } - - if (doc.Settings().readCameras) { - ConvertCameras(*model, node_name); - } - - nodes.push_back(std::move(nodes_chain.front())); - nodes_chain.clear(); - } - } - - if (nodes.size()) { - parent->mChildren = new aiNode *[nodes.size()](); - parent->mNumChildren = static_cast<unsigned int>(nodes.size()); - - for (unsigned int i = 0; i < nodes.size(); ++i) - { - parent->mChildren[i] = nodes[i].mOwnership.release(); - } - nodes.clear(); - } else { - parent->mNumChildren = 0; - parent->mChildren = nullptr; - } -} - -void FBXConverter::ConvertLights(const Model &model, const std::string &orig_name) { - const std::vector<const NodeAttribute *> &node_attrs = model.GetAttributes(); - for (const NodeAttribute *attr : node_attrs) { - const Light *const light = dynamic_cast<const Light *>(attr); - if (light) { - ConvertLight(*light, orig_name); - } - } -} - -void FBXConverter::ConvertCameras(const Model &model, const std::string &orig_name) { - const std::vector<const NodeAttribute *> &node_attrs = model.GetAttributes(); - for (const NodeAttribute *attr : node_attrs) { - const Camera *const cam = dynamic_cast<const Camera *>(attr); - if (cam) { - ConvertCamera(*cam, orig_name); - } - } -} - -void FBXConverter::ConvertLight(const Light &light, const std::string &orig_name) { - lights.push_back(new aiLight()); - aiLight *const out_light = lights.back(); - - out_light->mName.Set(orig_name); - - const float intensity = light.Intensity() / 100.0f; - const aiVector3D &col = light.Color(); - - out_light->mColorDiffuse = aiColor3D(col.x, col.y, col.z); - out_light->mColorDiffuse.r *= intensity; - out_light->mColorDiffuse.g *= intensity; - out_light->mColorDiffuse.b *= intensity; - - out_light->mColorSpecular = out_light->mColorDiffuse; - - //lights are defined along negative y direction - out_light->mPosition = aiVector3D(0.0f); - out_light->mDirection = aiVector3D(0.0f, -1.0f, 0.0f); - out_light->mUp = aiVector3D(0.0f, 0.0f, -1.0f); - - switch (light.LightType()) { - case Light::Type_Point: - out_light->mType = aiLightSource_POINT; - break; - - case Light::Type_Directional: - out_light->mType = aiLightSource_DIRECTIONAL; - break; - - case Light::Type_Spot: - out_light->mType = aiLightSource_SPOT; - out_light->mAngleOuterCone = AI_DEG_TO_RAD(light.OuterAngle()); - out_light->mAngleInnerCone = AI_DEG_TO_RAD(light.InnerAngle()); - break; - - case Light::Type_Area: - FBXImporter::LogWarn("cannot represent area light, set to UNDEFINED"); - out_light->mType = aiLightSource_UNDEFINED; - break; - - case Light::Type_Volume: - FBXImporter::LogWarn("cannot represent volume light, set to UNDEFINED"); - out_light->mType = aiLightSource_UNDEFINED; - break; - default: - ai_assert(false); - } - - float decay = light.DecayStart(); - switch (light.DecayType()) { - case Light::Decay_None: - out_light->mAttenuationConstant = decay; - out_light->mAttenuationLinear = 0.0f; - out_light->mAttenuationQuadratic = 0.0f; - break; - case Light::Decay_Linear: - out_light->mAttenuationConstant = 0.0f; - out_light->mAttenuationLinear = 2.0f / decay; - out_light->mAttenuationQuadratic = 0.0f; - break; - case Light::Decay_Quadratic: - out_light->mAttenuationConstant = 0.0f; - out_light->mAttenuationLinear = 0.0f; - out_light->mAttenuationQuadratic = 2.0f / (decay * decay); - break; - case Light::Decay_Cubic: - FBXImporter::LogWarn("cannot represent cubic attenuation, set to Quadratic"); - out_light->mAttenuationQuadratic = 1.0f; - break; - default: - ai_assert(false); - break; - } -} - -void FBXConverter::ConvertCamera(const Camera &cam, const std::string &orig_name) { - cameras.push_back(new aiCamera()); - aiCamera *const out_camera = cameras.back(); - - out_camera->mName.Set(orig_name); - - out_camera->mAspect = cam.AspectWidth() / cam.AspectHeight(); - - out_camera->mPosition = aiVector3D(0.0f); - out_camera->mLookAt = aiVector3D(1.0f, 0.0f, 0.0f); - out_camera->mUp = aiVector3D(0.0f, 1.0f, 0.0f); - - out_camera->mHorizontalFOV = AI_DEG_TO_RAD(cam.FieldOfView()); - - out_camera->mClipPlaneNear = cam.NearPlane(); - out_camera->mClipPlaneFar = cam.FarPlane(); - - out_camera->mHorizontalFOV = AI_DEG_TO_RAD(cam.FieldOfView()); - out_camera->mClipPlaneNear = cam.NearPlane(); - out_camera->mClipPlaneFar = cam.FarPlane(); -} - -void FBXConverter::GetUniqueName(const std::string &name, std::string &uniqueName) { - uniqueName = name; - auto it_pair = mNodeNames.insert({ name, 0 }); // duplicate node name instance count - unsigned int &i = it_pair.first->second; - while (!it_pair.second) { - i++; - std::ostringstream ext; - ext << name << std::setfill('0') << std::setw(3) << i; - uniqueName = ext.str(); - it_pair = mNodeNames.insert({ uniqueName, 0 }); - } -} - -const char *FBXConverter::NameTransformationComp(TransformationComp comp) { - switch (comp) { - case TransformationComp_Translation: - return "Translation"; - case TransformationComp_RotationOffset: - return "RotationOffset"; - case TransformationComp_RotationPivot: - return "RotationPivot"; - case TransformationComp_PreRotation: - return "PreRotation"; - case TransformationComp_Rotation: - return "Rotation"; - case TransformationComp_PostRotation: - return "PostRotation"; - case TransformationComp_RotationPivotInverse: - return "RotationPivotInverse"; - case TransformationComp_ScalingOffset: - return "ScalingOffset"; - case TransformationComp_ScalingPivot: - return "ScalingPivot"; - case TransformationComp_Scaling: - return "Scaling"; - case TransformationComp_ScalingPivotInverse: - return "ScalingPivotInverse"; - case TransformationComp_GeometricScaling: - return "GeometricScaling"; - case TransformationComp_GeometricRotation: - return "GeometricRotation"; - case TransformationComp_GeometricTranslation: - return "GeometricTranslation"; - case TransformationComp_GeometricScalingInverse: - return "GeometricScalingInverse"; - case TransformationComp_GeometricRotationInverse: - return "GeometricRotationInverse"; - case TransformationComp_GeometricTranslationInverse: - return "GeometricTranslationInverse"; - case TransformationComp_MAXIMUM: // this is to silence compiler warnings - default: - break; - } - - ai_assert(false); - - return nullptr; -} - -const char *FBXConverter::NameTransformationCompProperty(TransformationComp comp) { - switch (comp) { - case TransformationComp_Translation: - return "Lcl Translation"; - case TransformationComp_RotationOffset: - return "RotationOffset"; - case TransformationComp_RotationPivot: - return "RotationPivot"; - case TransformationComp_PreRotation: - return "PreRotation"; - case TransformationComp_Rotation: - return "Lcl Rotation"; - case TransformationComp_PostRotation: - return "PostRotation"; - case TransformationComp_RotationPivotInverse: - return "RotationPivotInverse"; - case TransformationComp_ScalingOffset: - return "ScalingOffset"; - case TransformationComp_ScalingPivot: - return "ScalingPivot"; - case TransformationComp_Scaling: - return "Lcl Scaling"; - case TransformationComp_ScalingPivotInverse: - return "ScalingPivotInverse"; - case TransformationComp_GeometricScaling: - return "GeometricScaling"; - case TransformationComp_GeometricRotation: - return "GeometricRotation"; - case TransformationComp_GeometricTranslation: - return "GeometricTranslation"; - case TransformationComp_GeometricScalingInverse: - return "GeometricScalingInverse"; - case TransformationComp_GeometricRotationInverse: - return "GeometricRotationInverse"; - case TransformationComp_GeometricTranslationInverse: - return "GeometricTranslationInverse"; - case TransformationComp_MAXIMUM: // this is to silence compiler warnings - break; - } - - ai_assert(false); - - return nullptr; -} - -aiVector3D FBXConverter::TransformationCompDefaultValue(TransformationComp comp) { - // XXX a neat way to solve the never-ending special cases for scaling - // would be to do everything in log space! - return comp == TransformationComp_Scaling ? aiVector3D(1.f, 1.f, 1.f) : aiVector3D(); -} - -void FBXConverter::GetRotationMatrix(Model::RotOrder mode, const aiVector3D &rotation, aiMatrix4x4 &out) { - if (mode == Model::RotOrder_SphericXYZ) { - FBXImporter::LogError("Unsupported RotationMode: SphericXYZ"); - out = aiMatrix4x4(); - return; - } - - const float angle_epsilon = Math::getEpsilon<float>(); - - out = aiMatrix4x4(); - - bool is_id[3] = { true, true, true }; - - aiMatrix4x4 temp[3]; - if (std::fabs(rotation.z) > angle_epsilon) { - aiMatrix4x4::RotationZ(AI_DEG_TO_RAD(rotation.z), temp[2]); - is_id[2] = false; - } - if (std::fabs(rotation.y) > angle_epsilon) { - aiMatrix4x4::RotationY(AI_DEG_TO_RAD(rotation.y), temp[1]); - is_id[1] = false; - } - if (std::fabs(rotation.x) > angle_epsilon) { - aiMatrix4x4::RotationX(AI_DEG_TO_RAD(rotation.x), temp[0]); - is_id[0] = false; - } - - int order[3] = { -1, -1, -1 }; - - // note: rotation order is inverted since we're left multiplying as is usual in assimp - switch (mode) { - case Model::RotOrder_EulerXYZ: - order[0] = 2; - order[1] = 1; - order[2] = 0; - break; - - case Model::RotOrder_EulerXZY: - order[0] = 1; - order[1] = 2; - order[2] = 0; - break; - - case Model::RotOrder_EulerYZX: - order[0] = 0; - order[1] = 2; - order[2] = 1; - break; - - case Model::RotOrder_EulerYXZ: - order[0] = 2; - order[1] = 0; - order[2] = 1; - break; - - case Model::RotOrder_EulerZXY: - order[0] = 1; - order[1] = 0; - order[2] = 2; - break; - - case Model::RotOrder_EulerZYX: - order[0] = 0; - order[1] = 1; - order[2] = 2; - break; - - default: - ai_assert(false); - break; - } - - ai_assert(order[0] >= 0); - ai_assert(order[0] <= 2); - ai_assert(order[1] >= 0); - ai_assert(order[1] <= 2); - ai_assert(order[2] >= 0); - ai_assert(order[2] <= 2); - - if (!is_id[order[0]]) { - out = temp[order[0]]; - } - - if (!is_id[order[1]]) { - out = out * temp[order[1]]; - } - - if (!is_id[order[2]]) { - out = out * temp[order[2]]; - } -} - -bool FBXConverter::NeedsComplexTransformationChain(const Model &model) { - const PropertyTable &props = model.Props(); - bool ok; - - const float zero_epsilon = ai_epsilon; - const aiVector3D all_ones(1.0f, 1.0f, 1.0f); - for (size_t i = 0; i < TransformationComp_MAXIMUM; ++i) { - const TransformationComp comp = static_cast<TransformationComp>(i); - - if (comp == TransformationComp_Rotation || comp == TransformationComp_Scaling || comp == TransformationComp_Translation || - comp == TransformationComp_PreRotation || comp == TransformationComp_PostRotation) { - continue; - } - - bool scale_compare = (comp == TransformationComp_GeometricScaling || comp == TransformationComp_Scaling); - - const aiVector3D &v = PropertyGet<aiVector3D>(props, NameTransformationCompProperty(comp), ok); - if (ok && scale_compare) { - if ((v - all_ones).SquareLength() > zero_epsilon) { - return true; - } - } else if (ok) { - if (v.SquareLength() > zero_epsilon) { - return true; - } - } - } - - return false; -} - -std::string FBXConverter::NameTransformationChainNode(const std::string &name, TransformationComp comp) { - return name + std::string(MAGIC_NODE_TAG) + "_" + NameTransformationComp(comp); -} - -bool FBXConverter::GenerateTransformationNodeChain(const Model &model, const std::string &name, std::vector<PotentialNode> &output_nodes, - std::vector<PotentialNode> &post_output_nodes) { - const PropertyTable &props = model.Props(); - const Model::RotOrder rot = model.RotationOrder(); - - bool ok; - - aiMatrix4x4 chain[TransformationComp_MAXIMUM]; - - ai_assert(TransformationComp_MAXIMUM < 32); - std::uint32_t chainBits = 0; - // A node won't need a node chain if it only has these. - const std::uint32_t chainMaskSimple = (1 << TransformationComp_Translation) + (1 << TransformationComp_Scaling) + (1 << TransformationComp_Rotation); - // A node will need a node chain if it has any of these. - const std::uint32_t chainMaskComplex = ((1 << (TransformationComp_MAXIMUM)) - 1) - chainMaskSimple; - - std::fill_n(chain, static_cast<unsigned int>(TransformationComp_MAXIMUM), aiMatrix4x4()); - - // generate transformation matrices for all the different transformation components - const float zero_epsilon = Math::getEpsilon<float>(); - const aiVector3D all_ones(1.0f, 1.0f, 1.0f); - - const aiVector3D &PreRotation = PropertyGet<aiVector3D>(props, "PreRotation", ok); - if (ok && PreRotation.SquareLength() > zero_epsilon) { - chainBits = chainBits | (1 << TransformationComp_PreRotation); - - GetRotationMatrix(Model::RotOrder::RotOrder_EulerXYZ, PreRotation, chain[TransformationComp_PreRotation]); - } - - const aiVector3D &PostRotation = PropertyGet<aiVector3D>(props, "PostRotation", ok); - if (ok && PostRotation.SquareLength() > zero_epsilon) { - chainBits = chainBits | (1 << TransformationComp_PostRotation); - - GetRotationMatrix(Model::RotOrder::RotOrder_EulerXYZ, PostRotation, chain[TransformationComp_PostRotation]); - } - - const aiVector3D &RotationPivot = PropertyGet<aiVector3D>(props, "RotationPivot", ok); - if (ok && RotationPivot.SquareLength() > zero_epsilon) { - chainBits = chainBits | (1 << TransformationComp_RotationPivot) | (1 << TransformationComp_RotationPivotInverse); - - aiMatrix4x4::Translation(RotationPivot, chain[TransformationComp_RotationPivot]); - aiMatrix4x4::Translation(-RotationPivot, chain[TransformationComp_RotationPivotInverse]); - } - - const aiVector3D &RotationOffset = PropertyGet<aiVector3D>(props, "RotationOffset", ok); - if (ok && RotationOffset.SquareLength() > zero_epsilon) { - chainBits = chainBits | (1 << TransformationComp_RotationOffset); - - aiMatrix4x4::Translation(RotationOffset, chain[TransformationComp_RotationOffset]); - } - - const aiVector3D &ScalingOffset = PropertyGet<aiVector3D>(props, "ScalingOffset", ok); - if (ok && ScalingOffset.SquareLength() > zero_epsilon) { - chainBits = chainBits | (1 << TransformationComp_ScalingOffset); - - aiMatrix4x4::Translation(ScalingOffset, chain[TransformationComp_ScalingOffset]); - } - - const aiVector3D &ScalingPivot = PropertyGet<aiVector3D>(props, "ScalingPivot", ok); - if (ok && ScalingPivot.SquareLength() > zero_epsilon) { - chainBits = chainBits | (1 << TransformationComp_ScalingPivot) | (1 << TransformationComp_ScalingPivotInverse); - - aiMatrix4x4::Translation(ScalingPivot, chain[TransformationComp_ScalingPivot]); - aiMatrix4x4::Translation(-ScalingPivot, chain[TransformationComp_ScalingPivotInverse]); - } - - const aiVector3D &Translation = PropertyGet<aiVector3D>(props, "Lcl Translation", ok); - if (ok && Translation.SquareLength() > zero_epsilon) { - chainBits = chainBits | (1 << TransformationComp_Translation); - - aiMatrix4x4::Translation(Translation, chain[TransformationComp_Translation]); - } - - const aiVector3D &Scaling = PropertyGet<aiVector3D>(props, "Lcl Scaling", ok); - if (ok && (Scaling - all_ones).SquareLength() > zero_epsilon) { - chainBits = chainBits | (1 << TransformationComp_Scaling); - - aiMatrix4x4::Scaling(Scaling, chain[TransformationComp_Scaling]); - } - - const aiVector3D &Rotation = PropertyGet<aiVector3D>(props, "Lcl Rotation", ok); - if (ok && Rotation.SquareLength() > zero_epsilon) { - chainBits = chainBits | (1 << TransformationComp_Rotation); - - GetRotationMatrix(rot, Rotation, chain[TransformationComp_Rotation]); - } - - const aiVector3D &GeometricScaling = PropertyGet<aiVector3D>(props, "GeometricScaling", ok); - if (ok && (GeometricScaling - all_ones).SquareLength() > zero_epsilon) { - chainBits = chainBits | (1 << TransformationComp_GeometricScaling); - aiMatrix4x4::Scaling(GeometricScaling, chain[TransformationComp_GeometricScaling]); - aiVector3D GeometricScalingInverse = GeometricScaling; - bool canscale = true; - for (unsigned int i = 0; i < 3; ++i) { - if (std::fabs(GeometricScalingInverse[i]) > zero_epsilon) { - GeometricScalingInverse[i] = 1.0f / GeometricScaling[i]; - } else { - FBXImporter::LogError("cannot invert geometric scaling matrix with a 0.0 scale component"); - canscale = false; - break; - } - } - if (canscale) { - chainBits = chainBits | (1 << TransformationComp_GeometricScalingInverse); - aiMatrix4x4::Scaling(GeometricScalingInverse, chain[TransformationComp_GeometricScalingInverse]); - } - } - - const aiVector3D &GeometricRotation = PropertyGet<aiVector3D>(props, "GeometricRotation", ok); - if (ok && GeometricRotation.SquareLength() > zero_epsilon) { - chainBits = chainBits | (1 << TransformationComp_GeometricRotation) | (1 << TransformationComp_GeometricRotationInverse); - GetRotationMatrix(rot, GeometricRotation, chain[TransformationComp_GeometricRotation]); - GetRotationMatrix(rot, GeometricRotation, chain[TransformationComp_GeometricRotationInverse]); - chain[TransformationComp_GeometricRotationInverse].Inverse(); - } - - const aiVector3D &GeometricTranslation = PropertyGet<aiVector3D>(props, "GeometricTranslation", ok); - if (ok && GeometricTranslation.SquareLength() > zero_epsilon) { - chainBits = chainBits | (1 << TransformationComp_GeometricTranslation) | (1 << TransformationComp_GeometricTranslationInverse); - aiMatrix4x4::Translation(GeometricTranslation, chain[TransformationComp_GeometricTranslation]); - aiMatrix4x4::Translation(-GeometricTranslation, chain[TransformationComp_GeometricTranslationInverse]); - } - - // now, if we have more than just Translation, Scaling and Rotation, - // we need to generate a full node chain to accommodate for assimp's - // lack to express pivots and offsets. - if ((chainBits & chainMaskComplex) && doc.Settings().preservePivots) { - FBXImporter::LogInfo("generating full transformation chain for node: ", name); - - // query the anim_chain_bits dictionary to find out which chain elements - // have associated node animation channels. These can not be dropped - // even if they have identity transform in bind pose. - NodeAnimBitMap::const_iterator it = node_anim_chain_bits.find(name); - const unsigned int anim_chain_bitmask = (it == node_anim_chain_bits.end() ? 0 : (*it).second); - - unsigned int bit = 0x1; - for (size_t i = 0; i < TransformationComp_MAXIMUM; ++i, bit <<= 1) { - const TransformationComp comp = static_cast<TransformationComp>(i); - - if ((chainBits & bit) == 0 && (anim_chain_bitmask & bit) == 0) { - continue; - } - - if (comp == TransformationComp_PostRotation) { - chain[i] = chain[i].Inverse(); - } - - PotentialNode nd; - nd->mName.Set(NameTransformationChainNode(name, comp)); - nd->mTransformation = chain[i]; - - // geometric inverses go in a post-node chain - if (comp == TransformationComp_GeometricScalingInverse || - comp == TransformationComp_GeometricRotationInverse || - comp == TransformationComp_GeometricTranslationInverse) { - post_output_nodes.emplace_back(std::move(nd)); - } else { - output_nodes.emplace_back(std::move(nd)); - } - } - - ai_assert(output_nodes.size()); - return true; - } - - // else, we can just multiply the matrices together - PotentialNode nd; - - // name passed to the method is already unique - nd->mName.Set(name); - // for (const auto &transform : chain) { - // skip inverse chain for no preservePivots - for (unsigned int i = TransformationComp_Translation; i < TransformationComp_MAXIMUM; i++) { - nd->mTransformation = nd->mTransformation * chain[i]; - } - output_nodes.push_back(std::move(nd)); - return false; -} - -void FBXConverter::SetupNodeMetadata(const Model &model, aiNode &nd) { - const PropertyTable &props = model.Props(); - DirectPropertyMap unparsedProperties = props.GetUnparsedProperties(); - - // create metadata on node - const std::size_t numStaticMetaData = 2; - aiMetadata *data = aiMetadata::Alloc(static_cast<unsigned int>(unparsedProperties.size() + numStaticMetaData)); - nd.mMetaData = data; - int index = 0; - - // find user defined properties (3ds Max) - data->Set(index++, "UserProperties", aiString(PropertyGet<std::string>(props, "UDP3DSMAX", ""))); - // preserve the info that a node was marked as Null node in the original file. - data->Set(index++, "IsNull", model.IsNull() ? true : false); - - // add unparsed properties to the node's metadata - for (const DirectPropertyMap::value_type &prop : unparsedProperties) { - // Interpret the property as a concrete type - if (const TypedProperty<bool> *interpretedBool = prop.second->As<TypedProperty<bool>>()) { - data->Set(index++, prop.first, interpretedBool->Value()); - } else if (const TypedProperty<int> *interpretedInt = prop.second->As<TypedProperty<int>>()) { - data->Set(index++, prop.first, interpretedInt->Value()); - } else if (const TypedProperty<uint64_t> *interpretedUint64 = prop.second->As<TypedProperty<uint64_t>>()) { - data->Set(index++, prop.first, interpretedUint64->Value()); - } else if (const TypedProperty<float> *interpretedFloat = prop.second->As<TypedProperty<float>>()) { - data->Set(index++, prop.first, interpretedFloat->Value()); - } else if (const TypedProperty<std::string> *interpretedString = prop.second->As<TypedProperty<std::string>>()) { - data->Set(index++, prop.first, aiString(interpretedString->Value())); - } else if (const TypedProperty<aiVector3D> *interpretedVec3 = prop.second->As<TypedProperty<aiVector3D>>()) { - data->Set(index++, prop.first, interpretedVec3->Value()); - } else { - ai_assert(false); - } - } -} - -void FBXConverter::ConvertModel(const Model &model, aiNode *parent, aiNode *root_node, - const aiMatrix4x4 &absolute_transform) { - const std::vector<const Geometry *> &geos = model.GetGeometry(); - - std::vector<unsigned int> meshes; - meshes.reserve(geos.size()); - - for (const Geometry *geo : geos) { - - const MeshGeometry *const mesh = dynamic_cast<const MeshGeometry *>(geo); - const LineGeometry *const line = dynamic_cast<const LineGeometry *>(geo); - if (mesh) { - const std::vector<unsigned int> &indices = ConvertMesh(*mesh, model, parent, root_node, - absolute_transform); - std::copy(indices.begin(), indices.end(), std::back_inserter(meshes)); - } else if (line) { - const std::vector<unsigned int> &indices = ConvertLine(*line, root_node); - std::copy(indices.begin(), indices.end(), std::back_inserter(meshes)); - } else if (geo) { - FBXImporter::LogWarn("ignoring unrecognized geometry: ", geo->Name()); - } else { - FBXImporter::LogWarn("skipping null geometry"); - } - } - - if (meshes.size()) { - parent->mMeshes = new unsigned int[meshes.size()](); - parent->mNumMeshes = static_cast<unsigned int>(meshes.size()); - - std::swap_ranges(meshes.begin(), meshes.end(), parent->mMeshes); - } -} - -std::vector<unsigned int> -FBXConverter::ConvertMesh(const MeshGeometry &mesh, const Model &model, aiNode *parent, aiNode *root_node, - const aiMatrix4x4 &absolute_transform) { - std::vector<unsigned int> temp; - - MeshMap::const_iterator it = meshes_converted.find(&mesh); - if (it != meshes_converted.end()) { - std::copy((*it).second.begin(), (*it).second.end(), std::back_inserter(temp)); - return temp; - } - - const std::vector<aiVector3D> &vertices = mesh.GetVertices(); - const std::vector<unsigned int> &faces = mesh.GetFaceIndexCounts(); - if (vertices.empty() || faces.empty()) { - FBXImporter::LogWarn("ignoring empty geometry: ", mesh.Name()); - return temp; - } - - // one material per mesh maps easily to aiMesh. Multiple material - // meshes need to be split. - const MatIndexArray &mindices = mesh.GetMaterialIndices(); - if (doc.Settings().readMaterials && !mindices.empty()) { - const MatIndexArray::value_type base = mindices[0]; - for (MatIndexArray::value_type index : mindices) { - if (index != base) { - return ConvertMeshMultiMaterial(mesh, model, parent, root_node, absolute_transform); - } - } - } - - // faster code-path, just copy the data - temp.push_back(ConvertMeshSingleMaterial(mesh, model, absolute_transform, parent, root_node)); - return temp; -} - -std::vector<unsigned int> FBXConverter::ConvertLine(const LineGeometry &line, aiNode *root_node) { - std::vector<unsigned int> temp; - - const std::vector<aiVector3D> &vertices = line.GetVertices(); - const std::vector<int> &indices = line.GetIndices(); - if (vertices.empty() || indices.empty()) { - FBXImporter::LogWarn("ignoring empty line: ", line.Name()); - return temp; - } - - aiMesh *const out_mesh = SetupEmptyMesh(line, root_node); - out_mesh->mPrimitiveTypes |= aiPrimitiveType_LINE; - - // copy vertices - out_mesh->mNumVertices = static_cast<unsigned int>(vertices.size()); - out_mesh->mVertices = new aiVector3D[out_mesh->mNumVertices]; - std::copy(vertices.begin(), vertices.end(), out_mesh->mVertices); - - //Number of line segments (faces) is "Number of Points - Number of Endpoints" - //N.B.: Endpoints in FbxLine are denoted by negative indices. - //If such an Index is encountered, add 1 and multiply by -1 to get the real index. - unsigned int epcount = 0; - for (unsigned i = 0; i < indices.size(); i++) { - if (indices[i] < 0) { - epcount++; - } - } - unsigned int pcount = static_cast<unsigned int>(indices.size()); - unsigned int scount = out_mesh->mNumFaces = pcount - epcount; - - aiFace *fac = out_mesh->mFaces = new aiFace[scount](); - for (unsigned int i = 0; i < pcount; ++i) { - if (indices[i] < 0) continue; - aiFace &f = *fac++; - f.mNumIndices = 2; //2 == aiPrimitiveType_LINE - f.mIndices = new unsigned int[2]; - f.mIndices[0] = indices[i]; - int segid = indices[(i + 1 == pcount ? 0 : i + 1)]; //If we have reached he last point, wrap around - f.mIndices[1] = (segid < 0 ? (segid + 1) * -1 : segid); //Convert EndPoint Index to normal Index - } - temp.push_back(static_cast<unsigned int>(mMeshes.size() - 1)); - return temp; -} - -aiMesh *FBXConverter::SetupEmptyMesh(const Geometry &mesh, aiNode *parent) { - aiMesh *const out_mesh = new aiMesh(); - mMeshes.push_back(out_mesh); - meshes_converted[&mesh].push_back(static_cast<unsigned int>(mMeshes.size() - 1)); - - // set name - std::string name = mesh.Name(); - if (name.substr(0, 10) == "Geometry::") { - name = name.substr(10); - } - - if (name.length()) { - out_mesh->mName.Set(name); - } else { - out_mesh->mName = parent->mName; - } - - return out_mesh; -} - -unsigned int FBXConverter::ConvertMeshSingleMaterial(const MeshGeometry &mesh, const Model &model, - const aiMatrix4x4 &absolute_transform, aiNode *parent, - aiNode *) { - const MatIndexArray &mindices = mesh.GetMaterialIndices(); - aiMesh *const out_mesh = SetupEmptyMesh(mesh, parent); - - const std::vector<aiVector3D> &vertices = mesh.GetVertices(); - const std::vector<unsigned int> &faces = mesh.GetFaceIndexCounts(); - - // copy vertices - out_mesh->mNumVertices = static_cast<unsigned int>(vertices.size()); - out_mesh->mVertices = new aiVector3D[vertices.size()]; - - std::copy(vertices.begin(), vertices.end(), out_mesh->mVertices); - - // generate dummy faces - out_mesh->mNumFaces = static_cast<unsigned int>(faces.size()); - aiFace *fac = out_mesh->mFaces = new aiFace[faces.size()](); - - unsigned int cursor = 0; - for (unsigned int pcount : faces) { - aiFace &f = *fac++; - f.mNumIndices = pcount; - f.mIndices = new unsigned int[pcount]; - switch (pcount) { - case 1: - out_mesh->mPrimitiveTypes |= aiPrimitiveType_POINT; - break; - case 2: - out_mesh->mPrimitiveTypes |= aiPrimitiveType_LINE; - break; - case 3: - out_mesh->mPrimitiveTypes |= aiPrimitiveType_TRIANGLE; - break; - default: - out_mesh->mPrimitiveTypes |= aiPrimitiveType_POLYGON; - break; - } - for (unsigned int i = 0; i < pcount; ++i) { - f.mIndices[i] = cursor++; - } - } - - // copy normals - const std::vector<aiVector3D> &normals = mesh.GetNormals(); - if (normals.size()) { - ai_assert(normals.size() == vertices.size()); - - out_mesh->mNormals = new aiVector3D[vertices.size()]; - std::copy(normals.begin(), normals.end(), out_mesh->mNormals); - } - - // copy tangents - assimp requires both tangents and bitangents (binormals) - // to be present, or neither of them. Compute binormals from normals - // and tangents if needed. - const std::vector<aiVector3D> &tangents = mesh.GetTangents(); - const std::vector<aiVector3D> *binormals = &mesh.GetBinormals(); - - if (tangents.size()) { - std::vector<aiVector3D> tempBinormals; - if (!binormals->size()) { - if (normals.size()) { - tempBinormals.resize(normals.size()); - for (unsigned int i = 0; i < tangents.size(); ++i) { - tempBinormals[i] = normals[i] ^ tangents[i]; - } - - binormals = &tempBinormals; - } else { - binormals = nullptr; - } - } - - if (binormals) { - ai_assert(tangents.size() == vertices.size()); - ai_assert(binormals->size() == vertices.size()); - - out_mesh->mTangents = new aiVector3D[vertices.size()]; - std::copy(tangents.begin(), tangents.end(), out_mesh->mTangents); - - out_mesh->mBitangents = new aiVector3D[vertices.size()]; - std::copy(binormals->begin(), binormals->end(), out_mesh->mBitangents); - } - } - - // copy texture coords - for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) { - const std::vector<aiVector2D> &uvs = mesh.GetTextureCoords(i); - if (uvs.empty()) { - break; - } - - aiVector3D *out_uv = out_mesh->mTextureCoords[i] = new aiVector3D[vertices.size()]; - for (const aiVector2D &v : uvs) { - *out_uv++ = aiVector3D(v.x, v.y, 0.0f); - } - - out_mesh->SetTextureCoordsName(i, aiString(mesh.GetTextureCoordChannelName(i))); - - out_mesh->mNumUVComponents[i] = 2; - } - - // copy vertex colors - for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_COLOR_SETS; ++i) { - const std::vector<aiColor4D> &colors = mesh.GetVertexColors(i); - if (colors.empty()) { - break; - } - - out_mesh->mColors[i] = new aiColor4D[vertices.size()]; - std::copy(colors.begin(), colors.end(), out_mesh->mColors[i]); - } - - if (!doc.Settings().readMaterials || mindices.empty()) { - FBXImporter::LogError("no material assigned to mesh, setting default material"); - out_mesh->mMaterialIndex = GetDefaultMaterial(); - } else { - ConvertMaterialForMesh(out_mesh, model, mesh, mindices[0]); - } - - if (doc.Settings().readWeights && mesh.DeformerSkin() != nullptr) { - ConvertWeights(out_mesh, mesh, absolute_transform, parent, NO_MATERIAL_SEPARATION, nullptr); - } - - std::vector<aiAnimMesh *> animMeshes; - for (const BlendShape *blendShape : mesh.GetBlendShapes()) { - for (const BlendShapeChannel *blendShapeChannel : blendShape->BlendShapeChannels()) { - const std::vector<const ShapeGeometry *> &shapeGeometries = blendShapeChannel->GetShapeGeometries(); - for (size_t i = 0; i < shapeGeometries.size(); i++) { - aiAnimMesh *animMesh = aiCreateAnimMesh(out_mesh); - const ShapeGeometry *shapeGeometry = shapeGeometries.at(i); - const std::vector<aiVector3D> &curVertices = shapeGeometry->GetVertices(); - const std::vector<aiVector3D> &curNormals = shapeGeometry->GetNormals(); - const std::vector<unsigned int> &curIndices = shapeGeometry->GetIndices(); - //losing channel name if using shapeGeometry->Name() - animMesh->mName.Set(FixAnimMeshName(blendShapeChannel->Name())); - for (size_t j = 0; j < curIndices.size(); j++) { - const unsigned int curIndex = curIndices.at(j); - aiVector3D vertex = curVertices.at(j); - aiVector3D normal = curNormals.at(j); - unsigned int count = 0; - const unsigned int *outIndices = mesh.ToOutputVertexIndex(curIndex, count); - for (unsigned int k = 0; k < count; k++) { - unsigned int index = outIndices[k]; - animMesh->mVertices[index] += vertex; - if (animMesh->mNormals != nullptr) { - animMesh->mNormals[index] += normal; - animMesh->mNormals[index].NormalizeSafe(); - } - } - } - animMesh->mWeight = shapeGeometries.size() > 1 ? blendShapeChannel->DeformPercent() / 100.0f : 1.0f; - animMeshes.push_back(animMesh); - } - } - } - const size_t numAnimMeshes = animMeshes.size(); - if (numAnimMeshes > 0) { - out_mesh->mNumAnimMeshes = static_cast<unsigned int>(numAnimMeshes); - out_mesh->mAnimMeshes = new aiAnimMesh *[numAnimMeshes]; - for (size_t i = 0; i < numAnimMeshes; i++) { - out_mesh->mAnimMeshes[i] = animMeshes.at(i); - } - } - return static_cast<unsigned int>(mMeshes.size() - 1); -} - -std::vector<unsigned int> -FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry &mesh, const Model &model, aiNode *parent, - aiNode *root_node, - const aiMatrix4x4 &absolute_transform) { - const MatIndexArray &mindices = mesh.GetMaterialIndices(); - ai_assert(mindices.size()); - - std::set<MatIndexArray::value_type> had; - std::vector<unsigned int> indices; - - for (MatIndexArray::value_type index : mindices) { - if (had.find(index) == had.end()) { - - indices.push_back(ConvertMeshMultiMaterial(mesh, model, index, parent, root_node, absolute_transform)); - had.insert(index); - } - } - - return indices; -} - -unsigned int FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry &mesh, const Model &model, - MatIndexArray::value_type index, - aiNode *parent, aiNode *, - const aiMatrix4x4 &absolute_transform) { - aiMesh *const out_mesh = SetupEmptyMesh(mesh, parent); - - const MatIndexArray &mindices = mesh.GetMaterialIndices(); - const std::vector<aiVector3D> &vertices = mesh.GetVertices(); - const std::vector<unsigned int> &faces = mesh.GetFaceIndexCounts(); - - const bool process_weights = doc.Settings().readWeights && mesh.DeformerSkin() != nullptr; - - unsigned int count_faces = 0; - unsigned int count_vertices = 0; - - // count faces - std::vector<unsigned int>::const_iterator itf = faces.begin(); - for (MatIndexArray::const_iterator it = mindices.begin(), - end = mindices.end(); - it != end; ++it, ++itf) { - if ((*it) != index) { - continue; - } - ++count_faces; - count_vertices += *itf; - } - - ai_assert(count_faces); - ai_assert(count_vertices); - - // mapping from output indices to DOM indexing, needed to resolve weights or blendshapes - std::vector<unsigned int> reverseMapping; - std::map<unsigned int, unsigned int> translateIndexMap; - if (process_weights || mesh.GetBlendShapes().size() > 0) { - reverseMapping.resize(count_vertices); - } - - // allocate output data arrays, but don't fill them yet - out_mesh->mNumVertices = count_vertices; - out_mesh->mVertices = new aiVector3D[count_vertices]; - - out_mesh->mNumFaces = count_faces; - aiFace *fac = out_mesh->mFaces = new aiFace[count_faces](); - - // allocate normals - const std::vector<aiVector3D> &normals = mesh.GetNormals(); - if (normals.size()) { - ai_assert(normals.size() == vertices.size()); - out_mesh->mNormals = new aiVector3D[count_vertices]; - } - - // allocate tangents, binormals. - const std::vector<aiVector3D> &tangents = mesh.GetTangents(); - const std::vector<aiVector3D> *binormals = &mesh.GetBinormals(); - std::vector<aiVector3D> tempBinormals; - - if (tangents.size()) { - if (!binormals->size()) { - if (normals.size()) { - // XXX this computes the binormals for the entire mesh, not only - // the part for which we need them. - tempBinormals.resize(normals.size()); - for (unsigned int i = 0; i < tangents.size(); ++i) { - tempBinormals[i] = normals[i] ^ tangents[i]; - } - - binormals = &tempBinormals; - } else { - binormals = nullptr; - } - } - - if (binormals) { - ai_assert(tangents.size() == vertices.size()); - ai_assert(binormals->size() == vertices.size()); - - out_mesh->mTangents = new aiVector3D[count_vertices]; - out_mesh->mBitangents = new aiVector3D[count_vertices]; - } - } - - // allocate texture coords - unsigned int num_uvs = 0; - for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i, ++num_uvs) { - const std::vector<aiVector2D> &uvs = mesh.GetTextureCoords(i); - if (uvs.empty()) { - break; - } - - out_mesh->mTextureCoords[i] = new aiVector3D[count_vertices]; - out_mesh->mNumUVComponents[i] = 2; - } - - // allocate vertex colors - unsigned int num_vcs = 0; - for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_COLOR_SETS; ++i, ++num_vcs) { - const std::vector<aiColor4D> &colors = mesh.GetVertexColors(i); - if (colors.empty()) { - break; - } - - out_mesh->mColors[i] = new aiColor4D[count_vertices]; - } - - unsigned int cursor = 0, in_cursor = 0; - - itf = faces.begin(); - for (MatIndexArray::const_iterator it = mindices.begin(), end = mindices.end(); it != end; ++it, ++itf) { - const unsigned int pcount = *itf; - if ((*it) != index) { - in_cursor += pcount; - continue; - } - - aiFace &f = *fac++; - - f.mNumIndices = pcount; - f.mIndices = new unsigned int[pcount]; - switch (pcount) { - case 1: - out_mesh->mPrimitiveTypes |= aiPrimitiveType_POINT; - break; - case 2: - out_mesh->mPrimitiveTypes |= aiPrimitiveType_LINE; - break; - case 3: - out_mesh->mPrimitiveTypes |= aiPrimitiveType_TRIANGLE; - break; - default: - out_mesh->mPrimitiveTypes |= aiPrimitiveType_POLYGON; - break; - } - for (unsigned int i = 0; i < pcount; ++i, ++cursor, ++in_cursor) { - f.mIndices[i] = cursor; - - if (reverseMapping.size()) { - reverseMapping[cursor] = in_cursor; - translateIndexMap[in_cursor] = cursor; - } - - out_mesh->mVertices[cursor] = vertices[in_cursor]; - - if (out_mesh->mNormals) { - out_mesh->mNormals[cursor] = normals[in_cursor]; - } - - if (out_mesh->mTangents) { - out_mesh->mTangents[cursor] = tangents[in_cursor]; - out_mesh->mBitangents[cursor] = (*binormals)[in_cursor]; - } - - for (unsigned int j = 0; j < num_uvs; ++j) { - const std::vector<aiVector2D> &uvs = mesh.GetTextureCoords(j); - out_mesh->mTextureCoords[j][cursor] = aiVector3D(uvs[in_cursor].x, uvs[in_cursor].y, 0.0f); - } - - for (unsigned int j = 0; j < num_vcs; ++j) { - const std::vector<aiColor4D> &cols = mesh.GetVertexColors(j); - out_mesh->mColors[j][cursor] = cols[in_cursor]; - } - } - } - - ConvertMaterialForMesh(out_mesh, model, mesh, index); - - if (process_weights) { - ConvertWeights(out_mesh, mesh, absolute_transform, parent, index, &reverseMapping); - } - - std::vector<aiAnimMesh *> animMeshes; - for (const BlendShape *blendShape : mesh.GetBlendShapes()) { - for (const BlendShapeChannel *blendShapeChannel : blendShape->BlendShapeChannels()) { - const std::vector<const ShapeGeometry *> &shapeGeometries = blendShapeChannel->GetShapeGeometries(); - for (size_t i = 0; i < shapeGeometries.size(); i++) { - aiAnimMesh *animMesh = aiCreateAnimMesh(out_mesh); - const ShapeGeometry *shapeGeometry = shapeGeometries.at(i); - const std::vector<aiVector3D> &curVertices = shapeGeometry->GetVertices(); - const std::vector<aiVector3D> &curNormals = shapeGeometry->GetNormals(); - const std::vector<unsigned int> &curIndices = shapeGeometry->GetIndices(); - animMesh->mName.Set(FixAnimMeshName(shapeGeometry->Name())); - for (size_t j = 0; j < curIndices.size(); j++) { - unsigned int curIndex = curIndices.at(j); - aiVector3D vertex = curVertices.at(j); - aiVector3D normal = curNormals.at(j); - unsigned int count = 0; - const unsigned int *outIndices = mesh.ToOutputVertexIndex(curIndex, count); - for (unsigned int k = 0; k < count; k++) { - unsigned int outIndex = outIndices[k]; - if (translateIndexMap.find(outIndex) == translateIndexMap.end()) - continue; - unsigned int transIndex = translateIndexMap[outIndex]; - animMesh->mVertices[transIndex] += vertex; - if (animMesh->mNormals != nullptr) { - animMesh->mNormals[transIndex] += normal; - animMesh->mNormals[transIndex].NormalizeSafe(); - } - } - } - animMesh->mWeight = shapeGeometries.size() > 1 ? blendShapeChannel->DeformPercent() / 100.0f : 1.0f; - animMeshes.push_back(animMesh); - } - } - } - - const size_t numAnimMeshes = animMeshes.size(); - if (numAnimMeshes > 0) { - out_mesh->mNumAnimMeshes = static_cast<unsigned int>(numAnimMeshes); - out_mesh->mAnimMeshes = new aiAnimMesh *[numAnimMeshes]; - for (size_t i = 0; i < numAnimMeshes; i++) { - out_mesh->mAnimMeshes[i] = animMeshes.at(i); - } - } - - return static_cast<unsigned int>(mMeshes.size() - 1); -} - -void FBXConverter::ConvertWeights(aiMesh *out, const MeshGeometry &geo, - const aiMatrix4x4 &absolute_transform, - aiNode *parent, unsigned int materialIndex, - std::vector<unsigned int> *outputVertStartIndices) { - ai_assert(geo.DeformerSkin()); - - std::vector<size_t> out_indices; - std::vector<size_t> index_out_indices; - std::vector<size_t> count_out_indices; - - const Skin &sk = *geo.DeformerSkin(); - - std::vector<aiBone *> bones; - - const bool no_mat_check = materialIndex == NO_MATERIAL_SEPARATION; - ai_assert(no_mat_check || outputVertStartIndices); - - try { - // iterate over the sub deformers - for (const Cluster *cluster : sk.Clusters()) { - ai_assert(cluster); - - const WeightIndexArray &indices = cluster->GetIndices(); - - const MatIndexArray &mats = geo.GetMaterialIndices(); - - const size_t no_index_sentinel = std::numeric_limits<size_t>::max(); - - count_out_indices.clear(); - index_out_indices.clear(); - out_indices.clear(); - - // now check if *any* of these weights is contained in the output mesh, - // taking notes so we don't need to do it twice. - for (WeightIndexArray::value_type index : indices) { - - unsigned int count = 0; - const unsigned int *const out_idx = geo.ToOutputVertexIndex(index, count); - // ToOutputVertexIndex only returns nullptr if index is out of bounds - // which should never happen - ai_assert(out_idx != nullptr); - - index_out_indices.push_back(no_index_sentinel); - count_out_indices.push_back(0); - - for (unsigned int i = 0; i < count; ++i) { - if (no_mat_check || static_cast<size_t>(mats[geo.FaceForVertexIndex(out_idx[i])]) == materialIndex) { - - if (index_out_indices.back() == no_index_sentinel) { - index_out_indices.back() = out_indices.size(); - } - - if (no_mat_check) { - out_indices.push_back(out_idx[i]); - } else { - // this extra lookup is in O(logn), so the entire algorithm becomes O(nlogn) - const std::vector<unsigned int>::iterator it = std::lower_bound( - outputVertStartIndices->begin(), - outputVertStartIndices->end(), - out_idx[i]); - - out_indices.push_back(std::distance(outputVertStartIndices->begin(), it)); - } - - ++count_out_indices.back(); - } - } - } - - // if we found at least one, generate the output bones - // XXX this could be heavily simplified by collecting the bone - // data in a single step. - ConvertCluster(bones, cluster, out_indices, index_out_indices, - count_out_indices, absolute_transform, parent); - } - - bone_map.clear(); - } catch (std::exception &) { - std::for_each(bones.begin(), bones.end(), Util::delete_fun<aiBone>()); - throw; - } - - if (bones.empty()) { - out->mBones = nullptr; - out->mNumBones = 0; - return; - } else { - out->mBones = new aiBone *[bones.size()](); - out->mNumBones = static_cast<unsigned int>(bones.size()); - - std::swap_ranges(bones.begin(), bones.end(), out->mBones); - } -} - -const aiNode *GetNodeByName(aiNode *current_node) { - aiNode *iter = current_node; - //printf("Child count: %d", iter->mNumChildren); - return iter; -} - -void FBXConverter::ConvertCluster(std::vector<aiBone *> &local_mesh_bones, const Cluster *cl, - std::vector<size_t> &out_indices, std::vector<size_t> &index_out_indices, - std::vector<size_t> &count_out_indices, const aiMatrix4x4 &absolute_transform, - aiNode *) { - ai_assert(cl); // make sure cluster valid - std::string deformer_name = cl->TargetNode()->Name(); - aiString bone_name = aiString(FixNodeName(deformer_name)); - - aiBone *bone = nullptr; - - if (bone_map.count(deformer_name)) { - ASSIMP_LOG_VERBOSE_DEBUG("retrieved bone from lookup ", bone_name.C_Str(), ". Deformer:", deformer_name); - bone = bone_map[deformer_name]; - } else { - ASSIMP_LOG_VERBOSE_DEBUG("created new bone ", bone_name.C_Str(), ". Deformer: ", deformer_name); - bone = new aiBone(); - bone->mName = bone_name; - - // store local transform link for post processing - bone->mOffsetMatrix = cl->TransformLink(); - bone->mOffsetMatrix.Inverse(); - - aiMatrix4x4 matrix = (aiMatrix4x4)absolute_transform; - - bone->mOffsetMatrix = bone->mOffsetMatrix * matrix; // * mesh_offset - - // - // Now calculate the aiVertexWeights - // - - aiVertexWeight *cursor = nullptr; - - bone->mNumWeights = static_cast<unsigned int>(out_indices.size()); - cursor = bone->mWeights = new aiVertexWeight[out_indices.size()]; - - const size_t no_index_sentinel = std::numeric_limits<size_t>::max(); - const WeightArray &weights = cl->GetWeights(); - - const size_t c = index_out_indices.size(); - for (size_t i = 0; i < c; ++i) { - const size_t index_index = index_out_indices[i]; - - if (index_index == no_index_sentinel) { - continue; - } - - const size_t cc = count_out_indices[i]; - for (size_t j = 0; j < cc; ++j) { - // cursor runs from first element relative to the start - // or relative to the start of the next indexes. - aiVertexWeight &out_weight = *cursor++; - - out_weight.mVertexId = static_cast<unsigned int>(out_indices[index_index + j]); - out_weight.mWeight = weights[i]; - } - } - - bone_map.insert(std::pair<const std::string, aiBone *>(deformer_name, bone)); - } - - ASSIMP_LOG_DEBUG("bone research: Indices size: ", out_indices.size()); - - // lookup must be populated in case something goes wrong - // this also allocates bones to mesh instance outside - local_mesh_bones.push_back(bone); -} - -void FBXConverter::ConvertMaterialForMesh(aiMesh *out, const Model &model, const MeshGeometry &geo, - MatIndexArray::value_type materialIndex) { - // locate source materials for this mesh - const std::vector<const Material *> &mats = model.GetMaterials(); - if (static_cast<unsigned int>(materialIndex) >= mats.size() || materialIndex < 0) { - FBXImporter::LogError("material index out of bounds, setting default material"); - out->mMaterialIndex = GetDefaultMaterial(); - return; - } - - const Material *const mat = mats[materialIndex]; - MaterialMap::const_iterator it = materials_converted.find(mat); - if (it != materials_converted.end()) { - out->mMaterialIndex = (*it).second; - return; - } - - out->mMaterialIndex = ConvertMaterial(*mat, &geo); - materials_converted[mat] = out->mMaterialIndex; -} - -unsigned int FBXConverter::GetDefaultMaterial() { - if (defaultMaterialIndex) { - return defaultMaterialIndex - 1; - } - - aiMaterial *out_mat = new aiMaterial(); - materials.push_back(out_mat); - - const aiColor3D diffuse = aiColor3D(0.8f, 0.8f, 0.8f); - out_mat->AddProperty(&diffuse, 1, AI_MATKEY_COLOR_DIFFUSE); - - aiString s; - s.Set(AI_DEFAULT_MATERIAL_NAME); - - out_mat->AddProperty(&s, AI_MATKEY_NAME); - - defaultMaterialIndex = static_cast<unsigned int>(materials.size()); - return defaultMaterialIndex - 1; -} - -unsigned int FBXConverter::ConvertMaterial(const Material &material, const MeshGeometry *const mesh) { - const PropertyTable &props = material.Props(); - - // generate empty output material - aiMaterial *out_mat = new aiMaterial(); - materials_converted[&material] = static_cast<unsigned int>(materials.size()); - - materials.push_back(out_mat); - - aiString str; - - // strip Material:: prefix - std::string name = material.Name(); - if (name.substr(0, 10) == "Material::") { - name = name.substr(10); - } - - // set material name if not empty - this could happen - // and there should be no key for it in this case. - if (name.length()) { - str.Set(name); - out_mat->AddProperty(&str, AI_MATKEY_NAME); - } - - // Set the shading mode as best we can: The FBX specification only mentions Lambert and Phong, and only Phong is mentioned in Assimp's aiShadingMode enum. - if (material.GetShadingModel() == "phong") { - aiShadingMode shadingMode = aiShadingMode_Phong; - out_mat->AddProperty<aiShadingMode>(&shadingMode, 1, AI_MATKEY_SHADING_MODEL); - } - - // shading stuff and colors - SetShadingPropertiesCommon(out_mat, props); - SetShadingPropertiesRaw(out_mat, props, material.Textures(), mesh); - - // texture assignments - SetTextureProperties(out_mat, material.Textures(), mesh); - SetTextureProperties(out_mat, material.LayeredTextures(), mesh); - - return static_cast<unsigned int>(materials.size() - 1); -} - -unsigned int FBXConverter::ConvertVideo(const Video &video) { - // generate empty output texture - aiTexture *out_tex = new aiTexture(); - textures.push_back(out_tex); - - // assuming the texture is compressed - out_tex->mWidth = static_cast<unsigned int>(video.ContentLength()); // total data size - out_tex->mHeight = 0; // fixed to 0 - - // steal the data from the Video to avoid an additional copy - out_tex->pcData = reinterpret_cast<aiTexel *>(const_cast<Video &>(video).RelinquishContent()); - - // try to extract a hint from the file extension - const std::string &filename = video.RelativeFilename().empty() ? video.FileName() : video.RelativeFilename(); - std::string ext = BaseImporter::GetExtension(filename); - - if (ext == "jpeg") { - ext = "jpg"; - } - - if (ext.size() <= 3) { - memcpy(out_tex->achFormatHint, ext.c_str(), ext.size()); - } - - out_tex->mFilename.Set(filename.c_str()); - - return static_cast<unsigned int>(textures.size() - 1); -} - -aiString FBXConverter::GetTexturePath(const Texture *tex) { - aiString path; - path.Set(tex->RelativeFilename()); - - const Video *media = tex->Media(); - if (media != nullptr) { - bool textureReady = false; //tells if our texture is ready (if it was loaded or if it was found) - unsigned int index=0; - - VideoMap::const_iterator it = textures_converted.find(media); - if (it != textures_converted.end()) { - index = (*it).second; - textureReady = true; - } else { - if (media->ContentLength() > 0) { - index = ConvertVideo(*media); - textures_converted[media] = index; - textureReady = true; - } - } - - // setup texture reference string (copied from ColladaLoader::FindFilenameForEffectTexture), if the texture is ready - if (doc.Settings().useLegacyEmbeddedTextureNaming) { - if (textureReady) { - // TODO: check the possibility of using the flag "AI_CONFIG_IMPORT_FBX_EMBEDDED_TEXTURES_LEGACY_NAMING" - // In FBX files textures are now stored internally by Assimp with their filename included - // Now Assimp can lookup through the loaded textures after all data is processed - // We need to load all textures before referencing them, as FBX file format order may reference a texture before loading it - // This may occur on this case too, it has to be studied - path.data[0] = '*'; - path.length = 1 + ASSIMP_itoa10(path.data + 1, MAXLEN - 1, index); - } - } - } - - return path; -} - -void FBXConverter::TrySetTextureProperties(aiMaterial *out_mat, const TextureMap &_textures, - const std::string &propName, - aiTextureType target, const MeshGeometry *const mesh) { - TextureMap::const_iterator it = _textures.find(propName); - if (it == _textures.end()) { - return; - } - - const Texture *const tex = (*it).second; - if (tex != nullptr) { - aiString path = GetTexturePath(tex); - out_mat->AddProperty(&path, _AI_MATKEY_TEXTURE_BASE, target, 0); - - aiUVTransform uvTrafo; - // XXX handle all kinds of UV transformations - uvTrafo.mScaling = tex->UVScaling(); - uvTrafo.mTranslation = tex->UVTranslation(); - uvTrafo.mRotation = tex->UVRotation(); - out_mat->AddProperty(&uvTrafo, 1, _AI_MATKEY_UVTRANSFORM_BASE, target, 0); - - const PropertyTable &props = tex->Props(); - - int uvIndex = 0; - - bool ok; - const std::string &uvSet = PropertyGet<std::string>(props, "UVSet", ok); - if (ok) { - // "default" is the name which usually appears in the FbxFileTexture template - if (uvSet != "default" && uvSet.length()) { - // this is a bit awkward - we need to find a mesh that uses this - // material and scan its UV channels for the given UV name because - // assimp references UV channels by index, not by name. - - // XXX: the case that UV channels may appear in different orders - // in meshes is unhandled. A possible solution would be to sort - // the UV channels alphabetically, but this would have the side - // effect that the primary (first) UV channel would sometimes - // be moved, causing trouble when users read only the first - // UV channel and ignore UV channel assignments altogether. - - const unsigned int matIndex = static_cast<unsigned int>(std::distance(materials.begin(), - std::find(materials.begin(), materials.end(), out_mat))); - - uvIndex = -1; - if (!mesh) { - for (const MeshMap::value_type &v : meshes_converted) { - const MeshGeometry *const meshGeom = dynamic_cast<const MeshGeometry *>(v.first); - if (!meshGeom) { - continue; - } - - const MatIndexArray &mats = meshGeom->GetMaterialIndices(); - MatIndexArray::const_iterator curIt = std::find(mats.begin(), mats.end(), (int) matIndex); - if (curIt == mats.end()) { - continue; - } - - int index = -1; - for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) { - if (meshGeom->GetTextureCoords(i).empty()) { - break; - } - const std::string &name = meshGeom->GetTextureCoordChannelName(i); - if (name == uvSet) { - index = static_cast<int>(i); - break; - } - } - if (index == -1) { - FBXImporter::LogWarn("did not find UV channel named ", uvSet, " in a mesh using this material"); - continue; - } - - if (uvIndex == -1) { - uvIndex = index; - } else { - FBXImporter::LogWarn("the UV channel named ", uvSet, - " appears at different positions in meshes, results will be wrong"); - } - } - } else { - int index = -1; - for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) { - if (mesh->GetTextureCoords(i).empty()) { - break; - } - const std::string &name = mesh->GetTextureCoordChannelName(i); - if (name == uvSet) { - index = static_cast<int>(i); - break; - } - } - if (index == -1) { - FBXImporter::LogWarn("did not find UV channel named ", uvSet, " in a mesh using this material"); - } - - if (uvIndex == -1) { - uvIndex = index; - } - } - - if (uvIndex == -1) { - FBXImporter::LogWarn("failed to resolve UV channel ", uvSet, ", using first UV channel"); - uvIndex = 0; - } - } - } - - out_mat->AddProperty(&uvIndex, 1, _AI_MATKEY_UVWSRC_BASE, target, 0); - } -} - -void FBXConverter::TrySetTextureProperties(aiMaterial *out_mat, const LayeredTextureMap &layeredTextures, - const std::string &propName, - aiTextureType target, const MeshGeometry *const mesh) { - LayeredTextureMap::const_iterator it = layeredTextures.find(propName); - if (it == layeredTextures.end()) { - return; - } - - int texCount = (*it).second->textureCount(); - - // Set the blend mode for layered textures - int blendmode = (*it).second->GetBlendMode(); - out_mat->AddProperty(&blendmode, 1, _AI_MATKEY_TEXOP_BASE, target, 0); - - for (int texIndex = 0; texIndex < texCount; texIndex++) { - - const Texture *const tex = (*it).second->getTexture(texIndex); - - aiString path = GetTexturePath(tex); - out_mat->AddProperty(&path, _AI_MATKEY_TEXTURE_BASE, target, texIndex); - - aiUVTransform uvTrafo; - // XXX handle all kinds of UV transformations - uvTrafo.mScaling = tex->UVScaling(); - uvTrafo.mTranslation = tex->UVTranslation(); - uvTrafo.mRotation = tex->UVRotation(); - out_mat->AddProperty(&uvTrafo, 1, _AI_MATKEY_UVTRANSFORM_BASE, target, texIndex); - - const PropertyTable &props = tex->Props(); - - int uvIndex = 0; - - bool ok; - const std::string &uvSet = PropertyGet<std::string>(props, "UVSet", ok); - if (ok) { - // "default" is the name which usually appears in the FbxFileTexture template - if (uvSet != "default" && uvSet.length()) { - // this is a bit awkward - we need to find a mesh that uses this - // material and scan its UV channels for the given UV name because - // assimp references UV channels by index, not by name. - - // XXX: the case that UV channels may appear in different orders - // in meshes is unhandled. A possible solution would be to sort - // the UV channels alphabetically, but this would have the side - // effect that the primary (first) UV channel would sometimes - // be moved, causing trouble when users read only the first - // UV channel and ignore UV channel assignments altogether. - - const unsigned int matIndex = static_cast<unsigned int>(std::distance(materials.begin(), - std::find(materials.begin(), materials.end(), out_mat))); - - uvIndex = -1; - if (!mesh) { - for (const MeshMap::value_type &v : meshes_converted) { - const MeshGeometry *const meshGeom = dynamic_cast<const MeshGeometry *>(v.first); - if (!meshGeom) { - continue; - } - - const MatIndexArray &mats = meshGeom->GetMaterialIndices(); - MatIndexArray::const_iterator curIt = std::find(mats.begin(), mats.end(), (int) matIndex); - if ( curIt == mats.end()) { - continue; - } - - int index = -1; - for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) { - if (meshGeom->GetTextureCoords(i).empty()) { - break; - } - const std::string &name = meshGeom->GetTextureCoordChannelName(i); - if (name == uvSet) { - index = static_cast<int>(i); - break; - } - } - if (index == -1) { - FBXImporter::LogWarn("did not find UV channel named ", uvSet, " in a mesh using this material"); - continue; - } - - if (uvIndex == -1) { - uvIndex = index; - } else { - FBXImporter::LogWarn("the UV channel named ", uvSet, - " appears at different positions in meshes, results will be wrong"); - } - } - } else { - int index = -1; - for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) { - if (mesh->GetTextureCoords(i).empty()) { - break; - } - const std::string &name = mesh->GetTextureCoordChannelName(i); - if (name == uvSet) { - index = static_cast<int>(i); - break; - } - } - if (index == -1) { - FBXImporter::LogWarn("did not find UV channel named ", uvSet, " in a mesh using this material"); - } - - if (uvIndex == -1) { - uvIndex = index; - } - } - - if (uvIndex == -1) { - FBXImporter::LogWarn("failed to resolve UV channel ", uvSet, ", using first UV channel"); - uvIndex = 0; - } - } - } - - out_mat->AddProperty(&uvIndex, 1, _AI_MATKEY_UVWSRC_BASE, target, texIndex); - } -} - -void FBXConverter::SetTextureProperties(aiMaterial *out_mat, const TextureMap &_textures, const MeshGeometry *const mesh) { - TrySetTextureProperties(out_mat, _textures, "DiffuseColor", aiTextureType_DIFFUSE, mesh); - TrySetTextureProperties(out_mat, _textures, "AmbientColor", aiTextureType_AMBIENT, mesh); - TrySetTextureProperties(out_mat, _textures, "EmissiveColor", aiTextureType_EMISSIVE, mesh); - TrySetTextureProperties(out_mat, _textures, "SpecularColor", aiTextureType_SPECULAR, mesh); - TrySetTextureProperties(out_mat, _textures, "SpecularFactor", aiTextureType_SPECULAR, mesh); - TrySetTextureProperties(out_mat, _textures, "TransparentColor", aiTextureType_OPACITY, mesh); - TrySetTextureProperties(out_mat, _textures, "ReflectionColor", aiTextureType_REFLECTION, mesh); - TrySetTextureProperties(out_mat, _textures, "DisplacementColor", aiTextureType_DISPLACEMENT, mesh); - TrySetTextureProperties(out_mat, _textures, "NormalMap", aiTextureType_NORMALS, mesh); - TrySetTextureProperties(out_mat, _textures, "Bump", aiTextureType_HEIGHT, mesh); - TrySetTextureProperties(out_mat, _textures, "ShininessExponent", aiTextureType_SHININESS, mesh); - TrySetTextureProperties(out_mat, _textures, "TransparencyFactor", aiTextureType_OPACITY, mesh); - TrySetTextureProperties(out_mat, _textures, "EmissiveFactor", aiTextureType_EMISSIVE, mesh); - TrySetTextureProperties(out_mat, _textures, "ReflectionFactor", aiTextureType_METALNESS, mesh); - //Maya counterparts - TrySetTextureProperties(out_mat, _textures, "Maya|DiffuseTexture", aiTextureType_DIFFUSE, mesh); - TrySetTextureProperties(out_mat, _textures, "Maya|NormalTexture", aiTextureType_NORMALS, mesh); - TrySetTextureProperties(out_mat, _textures, "Maya|SpecularTexture", aiTextureType_SPECULAR, mesh); - TrySetTextureProperties(out_mat, _textures, "Maya|FalloffTexture", aiTextureType_OPACITY, mesh); - TrySetTextureProperties(out_mat, _textures, "Maya|ReflectionMapTexture", aiTextureType_REFLECTION, mesh); - - // Maya PBR - TrySetTextureProperties(out_mat, _textures, "Maya|baseColor", aiTextureType_BASE_COLOR, mesh); - TrySetTextureProperties(out_mat, _textures, "Maya|normalCamera", aiTextureType_NORMAL_CAMERA, mesh); - TrySetTextureProperties(out_mat, _textures, "Maya|emissionColor", aiTextureType_EMISSION_COLOR, mesh); - TrySetTextureProperties(out_mat, _textures, "Maya|metalness", aiTextureType_METALNESS, mesh); - TrySetTextureProperties(out_mat, _textures, "Maya|diffuseRoughness", aiTextureType_DIFFUSE_ROUGHNESS, mesh); - - // Maya stingray - TrySetTextureProperties(out_mat, _textures, "Maya|TEX_color_map", aiTextureType_BASE_COLOR, mesh); - TrySetTextureProperties(out_mat, _textures, "Maya|TEX_normal_map", aiTextureType_NORMAL_CAMERA, mesh); - TrySetTextureProperties(out_mat, _textures, "Maya|TEX_emissive_map", aiTextureType_EMISSION_COLOR, mesh); - TrySetTextureProperties(out_mat, _textures, "Maya|TEX_metallic_map", aiTextureType_METALNESS, mesh); - TrySetTextureProperties(out_mat, _textures, "Maya|TEX_roughness_map", aiTextureType_DIFFUSE_ROUGHNESS, mesh); - TrySetTextureProperties(out_mat, _textures, "Maya|TEX_ao_map", aiTextureType_AMBIENT_OCCLUSION, mesh); - - // 3DSMax Physical material - TrySetTextureProperties(out_mat, _textures, "3dsMax|Parameters|base_color_map", aiTextureType_BASE_COLOR, mesh); - TrySetTextureProperties(out_mat, _textures, "3dsMax|Parameters|bump_map", aiTextureType_NORMAL_CAMERA, mesh); - TrySetTextureProperties(out_mat, _textures, "3dsMax|Parameters|emission_map", aiTextureType_EMISSION_COLOR, mesh); - TrySetTextureProperties(out_mat, _textures, "3dsMax|Parameters|metalness_map", aiTextureType_METALNESS, mesh); - TrySetTextureProperties(out_mat, _textures, "3dsMax|Parameters|roughness_map", aiTextureType_DIFFUSE_ROUGHNESS, mesh); - - // 3DSMax PBR materials - TrySetTextureProperties(out_mat, _textures, "3dsMax|main|base_color_map", aiTextureType_BASE_COLOR, mesh); - TrySetTextureProperties(out_mat, _textures, "3dsMax|main|norm_map", aiTextureType_NORMAL_CAMERA, mesh); - TrySetTextureProperties(out_mat, _textures, "3dsMax|main|emit_color_map", aiTextureType_EMISSION_COLOR, mesh); - TrySetTextureProperties(out_mat, _textures, "3dsMax|main|ao_map", aiTextureType_AMBIENT_OCCLUSION, mesh); - TrySetTextureProperties(out_mat, _textures, "3dsMax|main|opacity_map", aiTextureType_OPACITY, mesh); - // Metalness/Roughness material type - TrySetTextureProperties(out_mat, _textures, "3dsMax|main|metalness_map", aiTextureType_METALNESS, mesh); - // Specular/Gloss material type - TrySetTextureProperties(out_mat, _textures, "3dsMax|main|specular_map", aiTextureType_SPECULAR, mesh); - - // Glossiness vs roughness in 3ds Max Pbr Materials - int useGlossiness; - if (out_mat->Get("$raw.3dsMax|main|useGlossiness", aiTextureType_NONE, 0, useGlossiness) == aiReturn_SUCCESS) { - // These textures swap meaning if ((useGlossiness == 1) != (material type is Specular/Gloss)) - if (useGlossiness == 1) { - TrySetTextureProperties(out_mat, _textures, "3dsMax|main|roughness_map", aiTextureType_SHININESS, mesh); - TrySetTextureProperties(out_mat, _textures, "3dsMax|main|glossiness_map", aiTextureType_SHININESS, mesh); - } - else if (useGlossiness == 2) { - TrySetTextureProperties(out_mat, _textures, "3dsMax|main|roughness_map", aiTextureType_DIFFUSE_ROUGHNESS, mesh); - TrySetTextureProperties(out_mat, _textures, "3dsMax|main|glossiness_map", aiTextureType_DIFFUSE_ROUGHNESS, mesh); - } - else { - FBXImporter::LogWarn("A 3dsMax Pbr Material must have a useGlossiness value to correctly interpret roughness and glossiness textures."); - } - } -} - -void FBXConverter::SetTextureProperties(aiMaterial *out_mat, const LayeredTextureMap &layeredTextures, const MeshGeometry *const mesh) { - TrySetTextureProperties(out_mat, layeredTextures, "DiffuseColor", aiTextureType_DIFFUSE, mesh); - TrySetTextureProperties(out_mat, layeredTextures, "AmbientColor", aiTextureType_AMBIENT, mesh); - TrySetTextureProperties(out_mat, layeredTextures, "EmissiveColor", aiTextureType_EMISSIVE, mesh); - TrySetTextureProperties(out_mat, layeredTextures, "SpecularColor", aiTextureType_SPECULAR, mesh); - TrySetTextureProperties(out_mat, layeredTextures, "SpecularFactor", aiTextureType_SPECULAR, mesh); - TrySetTextureProperties(out_mat, layeredTextures, "TransparentColor", aiTextureType_OPACITY, mesh); - TrySetTextureProperties(out_mat, layeredTextures, "ReflectionColor", aiTextureType_REFLECTION, mesh); - TrySetTextureProperties(out_mat, layeredTextures, "DisplacementColor", aiTextureType_DISPLACEMENT, mesh); - TrySetTextureProperties(out_mat, layeredTextures, "NormalMap", aiTextureType_NORMALS, mesh); - TrySetTextureProperties(out_mat, layeredTextures, "Bump", aiTextureType_HEIGHT, mesh); - TrySetTextureProperties(out_mat, layeredTextures, "ShininessExponent", aiTextureType_SHININESS, mesh); - TrySetTextureProperties(out_mat, layeredTextures, "EmissiveFactor", aiTextureType_EMISSIVE, mesh); - TrySetTextureProperties(out_mat, layeredTextures, "TransparencyFactor", aiTextureType_OPACITY, mesh); - TrySetTextureProperties(out_mat, layeredTextures, "ReflectionFactor", aiTextureType_METALNESS, mesh); -} - -aiColor3D FBXConverter::GetColorPropertyFactored(const PropertyTable &props, const std::string &colorName, - const std::string &factorName, bool &result, bool useTemplate) { - result = true; - - bool ok; - aiVector3D BaseColor = PropertyGet<aiVector3D>(props, colorName, ok, useTemplate); - if (!ok) { - result = false; - return aiColor3D(0.0f, 0.0f, 0.0f); - } - - // if no factor name, return the colour as is - if (factorName.empty()) { - return aiColor3D(BaseColor.x, BaseColor.y, BaseColor.z); - } - - // otherwise it should be multiplied by the factor, if found. - float factor = PropertyGet<float>(props, factorName, ok, useTemplate); - if (ok) { - BaseColor *= factor; - } - return aiColor3D(BaseColor.x, BaseColor.y, BaseColor.z); -} - -aiColor3D FBXConverter::GetColorPropertyFromMaterial(const PropertyTable &props, const std::string &baseName, - bool &result) { - return GetColorPropertyFactored(props, baseName + "Color", baseName + "Factor", result, true); -} - -aiColor3D FBXConverter::GetColorProperty(const PropertyTable &props, const std::string &colorName, - bool &result, bool useTemplate) { - result = true; - bool ok; - const aiVector3D &ColorVec = PropertyGet<aiVector3D>(props, colorName, ok, useTemplate); - if (!ok) { - result = false; - return aiColor3D(0.0f, 0.0f, 0.0f); - } - return aiColor3D(ColorVec.x, ColorVec.y, ColorVec.z); -} - -void FBXConverter::SetShadingPropertiesCommon(aiMaterial *out_mat, const PropertyTable &props) { - // Set shading properties. - // Modern FBX Files have two separate systems for defining these, - // with only the more comprehensive one described in the property template. - // Likely the other values are a legacy system, - // which is still always exported by the official FBX SDK. - // - // Blender's FBX import and export mostly ignore this legacy system, - // and as we only support recent versions of FBX anyway, we can do the same. - bool ok; - - const aiColor3D &Diffuse = GetColorPropertyFromMaterial(props, "Diffuse", ok); - if (ok) { - out_mat->AddProperty(&Diffuse, 1, AI_MATKEY_COLOR_DIFFUSE); - } - - const aiColor3D &Emissive = GetColorPropertyFromMaterial(props, "Emissive", ok); - if (ok) { - out_mat->AddProperty(&Emissive, 1, AI_MATKEY_COLOR_EMISSIVE); - } else { - const aiColor3D &emissiveColor = GetColorProperty(props, "Maya|emissive", ok); - if (ok) { - out_mat->AddProperty(&emissiveColor, 1, AI_MATKEY_COLOR_EMISSIVE); - } - } - - const aiColor3D &Ambient = GetColorPropertyFromMaterial(props, "Ambient", ok); - if (ok) { - out_mat->AddProperty(&Ambient, 1, AI_MATKEY_COLOR_AMBIENT); - } - - // we store specular factor as SHININESS_STRENGTH, so just get the color - const aiColor3D &Specular = GetColorProperty(props, "SpecularColor", ok, true); - if (ok) { - out_mat->AddProperty(&Specular, 1, AI_MATKEY_COLOR_SPECULAR); - } - - // and also try to get SHININESS_STRENGTH - const float SpecularFactor = PropertyGet<float>(props, "SpecularFactor", ok, true); - if (ok) { - out_mat->AddProperty(&SpecularFactor, 1, AI_MATKEY_SHININESS_STRENGTH); - } - - // and the specular exponent - const float ShininessExponent = PropertyGet<float>(props, "ShininessExponent", ok); - if (ok) { - out_mat->AddProperty(&ShininessExponent, 1, AI_MATKEY_SHININESS); - } - - // TransparentColor / TransparencyFactor... gee thanks FBX :rolleyes: - const aiColor3D &Transparent = GetColorPropertyFactored(props, "TransparentColor", "TransparencyFactor", ok); - float CalculatedOpacity = 1.0f; - if (ok) { - out_mat->AddProperty(&Transparent, 1, AI_MATKEY_COLOR_TRANSPARENT); - // as calculated by FBX SDK 2017: - CalculatedOpacity = 1.0f - ((Transparent.r + Transparent.g + Transparent.b) / 3.0f); - } - - // try to get the transparency factor - const float TransparencyFactor = PropertyGet<float>(props, "TransparencyFactor", ok); - if (ok) { - out_mat->AddProperty(&TransparencyFactor, 1, AI_MATKEY_TRANSPARENCYFACTOR); - } - - // use of TransparencyFactor is inconsistent. - // Maya always stores it as 1.0, - // so we can't use it to set AI_MATKEY_OPACITY. - // Blender is more sensible and stores it as the alpha value. - // However both the FBX SDK and Blender always write an additional - // legacy "Opacity" field, so we can try to use that. - // - // If we can't find it, - // we can fall back to the value which the FBX SDK calculates - // from transparency colour (RGB) and factor (F) as - // 1.0 - F*((R+G+B)/3). - // - // There's no consistent way to interpret this opacity value, - // so it's up to clients to do the correct thing. - const float Opacity = PropertyGet<float>(props, "Opacity", ok); - if (ok) { - out_mat->AddProperty(&Opacity, 1, AI_MATKEY_OPACITY); - } else if (CalculatedOpacity != 1.0) { - out_mat->AddProperty(&CalculatedOpacity, 1, AI_MATKEY_OPACITY); - } - - // reflection color and factor are stored separately - const aiColor3D &Reflection = GetColorProperty(props, "ReflectionColor", ok, true); - if (ok) { - out_mat->AddProperty(&Reflection, 1, AI_MATKEY_COLOR_REFLECTIVE); - } - - float ReflectionFactor = PropertyGet<float>(props, "ReflectionFactor", ok, true); - if (ok) { - out_mat->AddProperty(&ReflectionFactor, 1, AI_MATKEY_REFLECTIVITY); - } - - const float BumpFactor = PropertyGet<float>(props, "BumpFactor", ok); - if (ok) { - out_mat->AddProperty(&BumpFactor, 1, AI_MATKEY_BUMPSCALING); - } - - const float DispFactor = PropertyGet<float>(props, "DisplacementFactor", ok); - if (ok) { - out_mat->AddProperty(&DispFactor, 1, "$mat.displacementscaling", 0, 0); - } - - // PBR material information - const aiColor3D &baseColor = GetColorProperty(props, "Maya|base_color", ok); - if (ok) { - out_mat->AddProperty(&baseColor, 1, AI_MATKEY_BASE_COLOR); - } - - const float useColorMap = PropertyGet<float>(props, "Maya|use_color_map", ok); - if (ok) { - out_mat->AddProperty(&useColorMap, 1, AI_MATKEY_USE_COLOR_MAP); - } - - const float useMetallicMap = PropertyGet<float>(props, "Maya|use_metallic_map", ok); - if (ok) { - out_mat->AddProperty(&useMetallicMap, 1, AI_MATKEY_USE_METALLIC_MAP); - } - - const float metallicFactor = PropertyGet<float>(props, "Maya|metallic", ok); - if (ok) { - out_mat->AddProperty(&metallicFactor, 1, AI_MATKEY_METALLIC_FACTOR); - } - - const float useRoughnessMap = PropertyGet<float>(props, "Maya|use_roughness_map", ok); - if (ok) { - out_mat->AddProperty(&useRoughnessMap, 1, AI_MATKEY_USE_ROUGHNESS_MAP); - } - - const float roughnessFactor = PropertyGet<float>(props, "Maya|roughness", ok); - if (ok) { - out_mat->AddProperty(&roughnessFactor, 1, AI_MATKEY_ROUGHNESS_FACTOR); - } - - const float useEmissiveMap = PropertyGet<float>(props, "Maya|use_emissive_map", ok); - if (ok) { - out_mat->AddProperty(&useEmissiveMap, 1, AI_MATKEY_USE_EMISSIVE_MAP); - } - - const float emissiveIntensity = PropertyGet<float>(props, "Maya|emissive_intensity", ok); - if (ok) { - out_mat->AddProperty(&emissiveIntensity, 1, AI_MATKEY_EMISSIVE_INTENSITY); - } - - const float useAOMap = PropertyGet<float>(props, "Maya|use_ao_map", ok); - if (ok) { - out_mat->AddProperty(&useAOMap, 1, AI_MATKEY_USE_AO_MAP); - } -} - -void FBXConverter::SetShadingPropertiesRaw(aiMaterial *out_mat, const PropertyTable &props, const TextureMap &_textures, const MeshGeometry *const mesh) { - // Add all the unparsed properties with a "$raw." prefix - - const std::string prefix = "$raw."; - - for (const DirectPropertyMap::value_type &prop : props.GetUnparsedProperties()) { - - std::string name = prefix + prop.first; - - if (const TypedProperty<aiVector3D> *interpretedVec3 = prop.second->As<TypedProperty<aiVector3D>>()) { - out_mat->AddProperty(&interpretedVec3->Value(), 1, name.c_str(), 0, 0); - } else if (const TypedProperty<aiColor3D> *interpretedCol3 = prop.second->As<TypedProperty<aiColor3D>>()) { - out_mat->AddProperty(&interpretedCol3->Value(), 1, name.c_str(), 0, 0); - } else if (const TypedProperty<aiColor4D> *interpretedCol4 = prop.second->As<TypedProperty<aiColor4D>>()) { - out_mat->AddProperty(&interpretedCol4->Value(), 1, name.c_str(), 0, 0); - } else if (const TypedProperty<float> *interpretedFloat = prop.second->As<TypedProperty<float>>()) { - out_mat->AddProperty(&interpretedFloat->Value(), 1, name.c_str(), 0, 0); - } else if (const TypedProperty<int> *interpretedInt = prop.second->As<TypedProperty<int>>()) { - out_mat->AddProperty(&interpretedInt->Value(), 1, name.c_str(), 0, 0); - } else if (const TypedProperty<bool> *interpretedBool = prop.second->As<TypedProperty<bool>>()) { - int value = interpretedBool->Value() ? 1 : 0; - out_mat->AddProperty(&value, 1, name.c_str(), 0, 0); - } else if (const TypedProperty<std::string> *interpretedString = prop.second->As<TypedProperty<std::string>>()) { - const aiString value = aiString(interpretedString->Value()); - out_mat->AddProperty(&value, name.c_str(), 0, 0); - } - } - - // Add the textures' properties - - for (TextureMap::const_iterator it = _textures.begin(); it != _textures.end(); ++it) { - - std::string name = prefix + it->first; - - const Texture *const tex = it->second; - if (tex != nullptr) { - aiString path; - path.Set(tex->RelativeFilename()); - - const Video *media = tex->Media(); - if (media != nullptr && media->ContentLength() > 0) { - unsigned int index; - - VideoMap::const_iterator videoIt = textures_converted.find(media); - if (videoIt != textures_converted.end()) { - index = videoIt->second; - } else { - index = ConvertVideo(*media); - textures_converted[media] = index; - } - - // setup texture reference string (copied from ColladaLoader::FindFilenameForEffectTexture) - path.data[0] = '*'; - path.length = 1 + ASSIMP_itoa10(path.data + 1, MAXLEN - 1, index); - } - - out_mat->AddProperty(&path, (name + "|file").c_str(), aiTextureType_UNKNOWN, 0); - - aiUVTransform uvTrafo; - // XXX handle all kinds of UV transformations - uvTrafo.mScaling = tex->UVScaling(); - uvTrafo.mTranslation = tex->UVTranslation(); - uvTrafo.mRotation = tex->UVRotation(); - out_mat->AddProperty(&uvTrafo, 1, (name + "|uvtrafo").c_str(), aiTextureType_UNKNOWN, 0); - - int uvIndex = 0; - - bool uvFound = false; - const std::string &uvSet = PropertyGet<std::string>(tex->Props(), "UVSet", uvFound); - if (uvFound) { - // "default" is the name which usually appears in the FbxFileTexture template - if (uvSet != "default" && uvSet.length()) { - // this is a bit awkward - we need to find a mesh that uses this - // material and scan its UV channels for the given UV name because - // assimp references UV channels by index, not by name. - - // XXX: the case that UV channels may appear in different orders - // in meshes is unhandled. A possible solution would be to sort - // the UV channels alphabetically, but this would have the side - // effect that the primary (first) UV channel would sometimes - // be moved, causing trouble when users read only the first - // UV channel and ignore UV channel assignments altogether. - - std::vector<aiMaterial *>::iterator materialIt = std::find(materials.begin(), materials.end(), out_mat); - const unsigned int matIndex = static_cast<unsigned int>(std::distance(materials.begin(), materialIt)); - - uvIndex = -1; - if (!mesh) { - for (const MeshMap::value_type &v : meshes_converted) { - const MeshGeometry *const meshGeom = dynamic_cast<const MeshGeometry *>(v.first); - if (!meshGeom) { - continue; - } - - const MatIndexArray &mats = meshGeom->GetMaterialIndices(); - if (std::find(mats.begin(), mats.end(), (int)matIndex) == mats.end()) { - continue; - } - - int index = -1; - for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) { - if (meshGeom->GetTextureCoords(i).empty()) { - break; - } - const std::string &curName = meshGeom->GetTextureCoordChannelName(i); - if (curName == uvSet) { - index = static_cast<int>(i); - break; - } - } - if (index == -1) { - FBXImporter::LogWarn("did not find UV channel named ", uvSet, " in a mesh using this material"); - continue; - } - - if (uvIndex == -1) { - uvIndex = index; - } else { - FBXImporter::LogWarn("the UV channel named ", uvSet, " appears at different positions in meshes, results will be wrong"); - } - } - } else { - int index = -1; - for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) { - if (mesh->GetTextureCoords(i).empty()) { - break; - } - const std::string &curName = mesh->GetTextureCoordChannelName(i); - if (curName == uvSet) { - index = static_cast<int>(i); - break; - } - } - if (index == -1) { - FBXImporter::LogWarn("did not find UV channel named ", uvSet, " in a mesh using this material"); - } - - if (uvIndex == -1) { - uvIndex = index; - } - } - - if (uvIndex == -1) { - FBXImporter::LogWarn("failed to resolve UV channel ", uvSet, ", using first UV channel"); - uvIndex = 0; - } - } - } - - out_mat->AddProperty(&uvIndex, 1, (name + "|uvwsrc").c_str(), aiTextureType_UNKNOWN, 0); - } - } -} - -double FBXConverter::FrameRateToDouble(FileGlobalSettings::FrameRate fp, double customFPSVal) { - switch (fp) { - case FileGlobalSettings::FrameRate_DEFAULT: - return 1.0; - - case FileGlobalSettings::FrameRate_120: - return 120.0; - - case FileGlobalSettings::FrameRate_100: - return 100.0; - - case FileGlobalSettings::FrameRate_60: - return 60.0; - - case FileGlobalSettings::FrameRate_50: - return 50.0; - - case FileGlobalSettings::FrameRate_48: - return 48.0; - - case FileGlobalSettings::FrameRate_30: - case FileGlobalSettings::FrameRate_30_DROP: - return 30.0; - - case FileGlobalSettings::FrameRate_NTSC_DROP_FRAME: - case FileGlobalSettings::FrameRate_NTSC_FULL_FRAME: - return 29.9700262; - - case FileGlobalSettings::FrameRate_PAL: - return 25.0; - - case FileGlobalSettings::FrameRate_CINEMA: - return 24.0; - - case FileGlobalSettings::FrameRate_1000: - return 1000.0; - - case FileGlobalSettings::FrameRate_CINEMA_ND: - return 23.976; - - case FileGlobalSettings::FrameRate_CUSTOM: - return customFPSVal; - - case FileGlobalSettings::FrameRate_MAX: // this is to silence compiler warnings - break; - } - - ai_assert(false); - - return -1.0f; -} - -void FBXConverter::ConvertAnimations() { - // first of all determine framerate - const FileGlobalSettings::FrameRate fps = doc.GlobalSettings().TimeMode(); - const float custom = doc.GlobalSettings().CustomFrameRate(); - anim_fps = FrameRateToDouble(fps, custom); - - const std::vector<const AnimationStack *> &curAnimations = doc.AnimationStacks(); - for (const AnimationStack *stack : curAnimations) { - ConvertAnimationStack(*stack); - } -} - -std::string FBXConverter::FixNodeName(const std::string &name) { - // strip Model:: prefix, avoiding ambiguities (i.e. don't strip if - // this causes ambiguities, well possible between empty identifiers, - // such as "Model::" and ""). Make sure the behaviour is consistent - // across multiple calls to FixNodeName(). - if (name.substr(0, 7) == "Model::") { - std::string temp = name.substr(7); - return temp; - } - - return name; -} - -std::string FBXConverter::FixAnimMeshName(const std::string &name) { - if (name.length()) { - size_t indexOf = name.find_first_of("::"); - if (indexOf != std::string::npos && indexOf < name.size() - 2) { - return name.substr(indexOf + 2); - } - } - return name.length() ? name : "AnimMesh"; -} - -void FBXConverter::ConvertAnimationStack(const AnimationStack &st) { - const AnimationLayerList &layers = st.Layers(); - if (layers.empty()) { - return; - } - - aiAnimation *const anim = new aiAnimation(); - animations.push_back(anim); - - // strip AnimationStack:: prefix - std::string name = st.Name(); - if (name.substr(0, 16) == "AnimationStack::") { - name = name.substr(16); - } else if (name.substr(0, 11) == "AnimStack::") { - name = name.substr(11); - } - - anim->mName.Set(name); - - // need to find all nodes for which we need to generate node animations - - // it may happen that we need to merge multiple layers, though. - NodeMap node_map; - - // reverse mapping from curves to layers, much faster than querying - // the FBX DOM for it. - LayerMap layer_map; - - const char *prop_whitelist[] = { - "Lcl Scaling", - "Lcl Rotation", - "Lcl Translation", - "DeformPercent" - }; - - std::map<std::string, morphAnimData *> morphAnimDatas; - - for (const AnimationLayer *layer : layers) { - ai_assert(layer); - const AnimationCurveNodeList &nodes = layer->Nodes(prop_whitelist, 4); - for (const AnimationCurveNode *node : nodes) { - ai_assert(node); - const Model *const model = dynamic_cast<const Model *>(node->Target()); - if (model) { - const std::string &curName = FixNodeName(model->Name()); - node_map[curName].push_back(node); - layer_map[node] = layer; - continue; - } - const BlendShapeChannel *const bsc = dynamic_cast<const BlendShapeChannel *>(node->Target()); - if (bsc) { - ProcessMorphAnimDatas(&morphAnimDatas, bsc, node); - } - } - } - - // generate node animations - std::vector<aiNodeAnim *> node_anims; - - double min_time = 1e10; - double max_time = -1e10; - - int64_t start_time = st.LocalStart(); - int64_t stop_time = st.LocalStop(); - bool has_local_startstop = start_time != 0 || stop_time != 0; - if (!has_local_startstop) { - // no time range given, so accept every keyframe and use the actual min/max time - // the numbers are INT64_MIN/MAX, the 20000 is for safety because GenerateNodeAnimations uses an epsilon of 10000 - start_time = -9223372036854775807ll + 20000; - stop_time = 9223372036854775807ll - 20000; - } - - try { - for (const NodeMap::value_type &kv : node_map) { - GenerateNodeAnimations(node_anims, - kv.first, - kv.second, - layer_map, - start_time, stop_time, - max_time, - min_time); - } - } catch (std::exception &) { - std::for_each(node_anims.begin(), node_anims.end(), Util::delete_fun<aiNodeAnim>()); - throw; - } - - if (node_anims.size() || morphAnimDatas.size()) { - if (node_anims.size()) { - anim->mChannels = new aiNodeAnim *[node_anims.size()](); - anim->mNumChannels = static_cast<unsigned int>(node_anims.size()); - std::swap_ranges(node_anims.begin(), node_anims.end(), anim->mChannels); - } - if (morphAnimDatas.size()) { - unsigned int numMorphMeshChannels = static_cast<unsigned int>(morphAnimDatas.size()); - anim->mMorphMeshChannels = new aiMeshMorphAnim *[numMorphMeshChannels]; - anim->mNumMorphMeshChannels = numMorphMeshChannels; - unsigned int i = 0; - for (const auto &morphAnimIt : morphAnimDatas) { - morphAnimData *animData = morphAnimIt.second; - unsigned int numKeys = static_cast<unsigned int>(animData->size()); - aiMeshMorphAnim *meshMorphAnim = new aiMeshMorphAnim(); - meshMorphAnim->mName.Set(morphAnimIt.first); - meshMorphAnim->mNumKeys = numKeys; - meshMorphAnim->mKeys = new aiMeshMorphKey[numKeys]; - unsigned int j = 0; - for (auto animIt : *animData) { - morphKeyData *keyData = animIt.second; - unsigned int numValuesAndWeights = static_cast<unsigned int>(keyData->values.size()); - meshMorphAnim->mKeys[j].mNumValuesAndWeights = numValuesAndWeights; - meshMorphAnim->mKeys[j].mValues = new unsigned int[numValuesAndWeights]; - meshMorphAnim->mKeys[j].mWeights = new double[numValuesAndWeights]; - meshMorphAnim->mKeys[j].mTime = CONVERT_FBX_TIME(animIt.first) * anim_fps; - for (unsigned int k = 0; k < numValuesAndWeights; k++) { - meshMorphAnim->mKeys[j].mValues[k] = keyData->values.at(k); - meshMorphAnim->mKeys[j].mWeights[k] = keyData->weights.at(k); - } - j++; - } - anim->mMorphMeshChannels[i++] = meshMorphAnim; - } - } - } else { - // empty animations would fail validation, so drop them - delete anim; - animations.pop_back(); - FBXImporter::LogInfo("ignoring empty AnimationStack (using IK?): ", name); - return; - } - - double start_time_fps = has_local_startstop ? (CONVERT_FBX_TIME(start_time) * anim_fps) : min_time; - double stop_time_fps = has_local_startstop ? (CONVERT_FBX_TIME(stop_time) * anim_fps) : max_time; - - // adjust relative timing for animation - for (unsigned int c = 0; c < anim->mNumChannels; c++) { - aiNodeAnim *channel = anim->mChannels[c]; - for (uint32_t i = 0; i < channel->mNumPositionKeys; i++) { - channel->mPositionKeys[i].mTime -= start_time_fps; - } - for (uint32_t i = 0; i < channel->mNumRotationKeys; i++) { - channel->mRotationKeys[i].mTime -= start_time_fps; - } - for (uint32_t i = 0; i < channel->mNumScalingKeys; i++) { - channel->mScalingKeys[i].mTime -= start_time_fps; - } - } - for (unsigned int c = 0; c < anim->mNumMorphMeshChannels; c++) { - aiMeshMorphAnim *channel = anim->mMorphMeshChannels[c]; - for (uint32_t i = 0; i < channel->mNumKeys; i++) { - channel->mKeys[i].mTime -= start_time_fps; - } - } - - // for some mysterious reason, mDuration is simply the maximum key -- the - // validator always assumes animations to start at zero. - anim->mDuration = stop_time_fps - start_time_fps; - anim->mTicksPerSecond = anim_fps; -} - -// ------------------------------------------------------------------------------------------------ -void FBXConverter::ProcessMorphAnimDatas(std::map<std::string, morphAnimData *> *morphAnimDatas, const BlendShapeChannel *bsc, const AnimationCurveNode *node) { - std::vector<const Connection *> bscConnections = doc.GetConnectionsBySourceSequenced(bsc->ID(), "Deformer"); - for (const Connection *bscConnection : bscConnections) { - auto bs = dynamic_cast<const BlendShape *>(bscConnection->DestinationObject()); - if (bs) { - auto channelIt = std::find(bs->BlendShapeChannels().begin(), bs->BlendShapeChannels().end(), bsc); - if (channelIt != bs->BlendShapeChannels().end()) { - auto channelIndex = static_cast<unsigned int>(std::distance(bs->BlendShapeChannels().begin(), channelIt)); - std::vector<const Connection *> bsConnections = doc.GetConnectionsBySourceSequenced(bs->ID(), "Geometry"); - for (const Connection *bsConnection : bsConnections) { - auto geo = dynamic_cast<const Geometry *>(bsConnection->DestinationObject()); - if (geo) { - std::vector<const Connection *> geoConnections = doc.GetConnectionsBySourceSequenced(geo->ID(), "Model"); - for (const Connection *geoConnection : geoConnections) { - auto model = dynamic_cast<const Model *>(geoConnection->DestinationObject()); - if (model) { - auto geoIt = std::find(model->GetGeometry().begin(), model->GetGeometry().end(), geo); - auto geoIndex = static_cast<unsigned int>(std::distance(model->GetGeometry().begin(), geoIt)); - auto name = aiString(FixNodeName(model->Name() + "*")); - name.length = 1 + ASSIMP_itoa10(name.data + name.length, MAXLEN - 1, geoIndex); - morphAnimData *animData; - auto animIt = morphAnimDatas->find(name.C_Str()); - if (animIt == morphAnimDatas->end()) { - animData = new morphAnimData(); - morphAnimDatas->insert(std::make_pair(name.C_Str(), animData)); - } else { - animData = animIt->second; - } - for (std::pair<std::string, const AnimationCurve *> curvesIt : node->Curves()) { - if (curvesIt.first == "d|DeformPercent") { - const AnimationCurve *animationCurve = curvesIt.second; - const KeyTimeList &keys = animationCurve->GetKeys(); - const KeyValueList &values = animationCurve->GetValues(); - unsigned int k = 0; - for (auto key : keys) { - morphKeyData *keyData; - auto keyIt = animData->find(key); - if (keyIt == animData->end()) { - keyData = new morphKeyData(); - animData->insert(std::make_pair(key, keyData)); - } else { - keyData = keyIt->second; - } - keyData->values.push_back(channelIndex); - keyData->weights.push_back(values.at(k) / 100.0f); - k++; - } - } - } - } - } - } - } - } - } - } -} - -// ------------------------------------------------------------------------------------------------ -#ifdef ASSIMP_BUILD_DEBUG -// ------------------------------------------------------------------------------------------------ -// sanity check whether the input is ok -static void validateAnimCurveNodes(const std::vector<const AnimationCurveNode *> &curves, - bool strictMode) { - const Object *target(nullptr); - for (const AnimationCurveNode *node : curves) { - if (!target) { - target = node->Target(); - } - if (node->Target() != target) { - FBXImporter::LogWarn("Node target is nullptr type."); - } - if (strictMode) { - ai_assert(node->Target() == target); - } - } -} -#endif // ASSIMP_BUILD_DEBUG - -// ------------------------------------------------------------------------------------------------ -void FBXConverter::GenerateNodeAnimations(std::vector<aiNodeAnim *> &node_anims, - const std::string &fixed_name, - const std::vector<const AnimationCurveNode *> &curves, - const LayerMap &layer_map, - int64_t start, int64_t stop, - double &max_time, - double &min_time) { - - NodeMap node_property_map; - ai_assert(curves.size()); - -#ifdef ASSIMP_BUILD_DEBUG - validateAnimCurveNodes(curves, doc.Settings().strictMode); -#endif - const AnimationCurveNode *curve_node = nullptr; - for (const AnimationCurveNode *node : curves) { - ai_assert(node); - - if (node->TargetProperty().empty()) { - FBXImporter::LogWarn("target property for animation curve not set: ", node->Name()); - continue; - } - - curve_node = node; - if (node->Curves().empty()) { - FBXImporter::LogWarn("no animation curves assigned to AnimationCurveNode: ", node->Name()); - continue; - } - - node_property_map[node->TargetProperty()].push_back(node); - } - - ai_assert(curve_node); - ai_assert(curve_node->TargetAsModel()); - - const Model &target = *curve_node->TargetAsModel(); - - // check for all possible transformation components - NodeMap::const_iterator chain[TransformationComp_MAXIMUM]; - - bool has_any = false; - bool has_complex = false; - - for (size_t i = 0; i < TransformationComp_MAXIMUM; ++i) { - const TransformationComp comp = static_cast<TransformationComp>(i); - - // inverse pivots don't exist in the input, we just generate them - if (comp == TransformationComp_RotationPivotInverse || comp == TransformationComp_ScalingPivotInverse) { - chain[i] = node_property_map.end(); - continue; - } - - chain[i] = node_property_map.find(NameTransformationCompProperty(comp)); - if (chain[i] != node_property_map.end()) { - - // check if this curves contains redundant information by looking - // up the corresponding node's transformation chain. - if (doc.Settings().optimizeEmptyAnimationCurves && - IsRedundantAnimationData(target, comp, (chain[i]->second))) { - - FBXImporter::LogVerboseDebug("dropping redundant animation channel for node ", target.Name()); - continue; - } - - has_any = true; - - if (comp != TransformationComp_Rotation && comp != TransformationComp_Scaling && comp != TransformationComp_Translation) { - has_complex = true; - } - } - } - - if (!has_any) { - FBXImporter::LogWarn("ignoring node animation, did not find any transformation key frames"); - return; - } - - // this needs to play nicely with GenerateTransformationNodeChain() which will - // be invoked _later_ (animations come first). If this node has only rotation, - // scaling and translation _and_ there are no animated other components either, - // we can use a single node and also a single node animation channel. - if( !has_complex && !NeedsComplexTransformationChain(target)) { - aiNodeAnim* const nd = GenerateSimpleNodeAnim(fixed_name, target, chain, - node_property_map.end(), - start, stop, - max_time, - min_time - ); - - ai_assert(nd); - if (nd->mNumPositionKeys == 0 && nd->mNumRotationKeys == 0 && nd->mNumScalingKeys == 0) { - delete nd; - } else { - node_anims.push_back(nd); - } - return; - } - - // otherwise, things get gruesome and we need separate animation channels - // for each part of the transformation chain. Remember which channels - // we generated and pass this information to the node conversion - // code to avoid nodes that have identity transform, but non-identity - // animations, being dropped. - unsigned int flags = 0, bit = 0x1; - for (size_t i = 0; i < TransformationComp_MAXIMUM; ++i, bit <<= 1) { - const TransformationComp comp = static_cast<TransformationComp>(i); - - if (chain[i] != node_property_map.end()) { - flags |= bit; - - ai_assert(comp != TransformationComp_RotationPivotInverse); - ai_assert(comp != TransformationComp_ScalingPivotInverse); - - const std::string &chain_name = NameTransformationChainNode(fixed_name, comp); - - aiNodeAnim *na = nullptr; - switch (comp) { - case TransformationComp_Rotation: - case TransformationComp_PreRotation: - case TransformationComp_PostRotation: - case TransformationComp_GeometricRotation: - na = GenerateRotationNodeAnim(chain_name, - target, - (*chain[i]).second, - layer_map, - start, stop, - max_time, - min_time); - - break; - - case TransformationComp_RotationOffset: - case TransformationComp_RotationPivot: - case TransformationComp_ScalingOffset: - case TransformationComp_ScalingPivot: - case TransformationComp_Translation: - case TransformationComp_GeometricTranslation: - na = GenerateTranslationNodeAnim(chain_name, - target, - (*chain[i]).second, - layer_map, - start, stop, - max_time, - min_time); - - // pivoting requires us to generate an implicit inverse channel to undo the pivot translation - if (comp == TransformationComp_RotationPivot) { - const std::string &invName = NameTransformationChainNode(fixed_name, - TransformationComp_RotationPivotInverse); - - aiNodeAnim *const inv = GenerateTranslationNodeAnim(invName, - target, - (*chain[i]).second, - layer_map, - start, stop, - max_time, - min_time, - true); - - ai_assert(inv); - if (inv->mNumPositionKeys == 0 && inv->mNumRotationKeys == 0 && inv->mNumScalingKeys == 0) { - delete inv; - } else { - node_anims.push_back(inv); - } - - ai_assert(TransformationComp_RotationPivotInverse > i); - flags |= bit << (TransformationComp_RotationPivotInverse - i); - } else if (comp == TransformationComp_ScalingPivot) { - const std::string &invName = NameTransformationChainNode(fixed_name, - TransformationComp_ScalingPivotInverse); - - aiNodeAnim *const inv = GenerateTranslationNodeAnim(invName, - target, - (*chain[i]).second, - layer_map, - start, stop, - max_time, - min_time, - true); - - ai_assert(inv); - if (inv->mNumPositionKeys == 0 && inv->mNumRotationKeys == 0 && inv->mNumScalingKeys == 0) { - delete inv; - } else { - node_anims.push_back(inv); - } - - ai_assert(TransformationComp_RotationPivotInverse > i); - flags |= bit << (TransformationComp_RotationPivotInverse - i); - } - - break; - - case TransformationComp_Scaling: - case TransformationComp_GeometricScaling: - na = GenerateScalingNodeAnim(chain_name, - target, - (*chain[i]).second, - layer_map, - start, stop, - max_time, - min_time); - - break; - - default: - ai_assert(false); - } - - ai_assert(na); - if (na->mNumPositionKeys == 0 && na->mNumRotationKeys == 0 && na->mNumScalingKeys == 0) { - delete na; - } else { - node_anims.push_back(na); - } - continue; - } - } - - node_anim_chain_bits[fixed_name] = flags; -} - -bool FBXConverter::IsRedundantAnimationData(const Model &target, - TransformationComp comp, - const std::vector<const AnimationCurveNode *> &curves) { - ai_assert(curves.size()); - - // look for animation nodes with - // * sub channels for all relevant components set - // * one key/value pair per component - // * combined values match up the corresponding value in the bind pose node transformation - // only such nodes are 'redundant' for this function. - - if (curves.size() > 1) { - return false; - } - - const AnimationCurveNode &nd = *curves.front(); - const AnimationCurveMap &sub_curves = nd.Curves(); - - const AnimationCurveMap::const_iterator dx = sub_curves.find("d|X"); - const AnimationCurveMap::const_iterator dy = sub_curves.find("d|Y"); - const AnimationCurveMap::const_iterator dz = sub_curves.find("d|Z"); - - if (dx == sub_curves.end() || dy == sub_curves.end() || dz == sub_curves.end()) { - return false; - } - - const KeyValueList &vx = (*dx).second->GetValues(); - const KeyValueList &vy = (*dy).second->GetValues(); - const KeyValueList &vz = (*dz).second->GetValues(); - - if (vx.size() != 1 || vy.size() != 1 || vz.size() != 1) { - return false; - } - - const aiVector3D dyn_val = aiVector3D(vx[0], vy[0], vz[0]); - const aiVector3D &static_val = PropertyGet<aiVector3D>(target.Props(), - NameTransformationCompProperty(comp), - TransformationCompDefaultValue(comp)); - - const float epsilon = Math::getEpsilon<float>(); - return (dyn_val - static_val).SquareLength() < epsilon; -} - -aiNodeAnim *FBXConverter::GenerateRotationNodeAnim(const std::string &name, - const Model &target, - const std::vector<const AnimationCurveNode *> &curves, - const LayerMap &layer_map, - int64_t start, int64_t stop, - double &max_time, - double &min_time) { - std::unique_ptr<aiNodeAnim> na(new aiNodeAnim()); - na->mNodeName.Set(name); - - ConvertRotationKeys(na.get(), curves, layer_map, start, stop, max_time, min_time, target.RotationOrder()); - - // dummy scaling key - na->mScalingKeys = new aiVectorKey[1]; - na->mNumScalingKeys = 1; - - na->mScalingKeys[0].mTime = 0.; - na->mScalingKeys[0].mValue = aiVector3D(1.0f, 1.0f, 1.0f); - - // dummy position key - na->mPositionKeys = new aiVectorKey[1]; - na->mNumPositionKeys = 1; - - na->mPositionKeys[0].mTime = 0.; - na->mPositionKeys[0].mValue = aiVector3D(); - - return na.release(); -} - -aiNodeAnim *FBXConverter::GenerateScalingNodeAnim(const std::string &name, - const Model & /*target*/, - const std::vector<const AnimationCurveNode *> &curves, - const LayerMap &layer_map, - int64_t start, int64_t stop, - double &max_time, - double &min_time) { - std::unique_ptr<aiNodeAnim> na(new aiNodeAnim()); - na->mNodeName.Set(name); - - ConvertScaleKeys(na.get(), curves, layer_map, start, stop, max_time, min_time); - - // dummy rotation key - na->mRotationKeys = new aiQuatKey[1]; - na->mNumRotationKeys = 1; - - na->mRotationKeys[0].mTime = 0.; - na->mRotationKeys[0].mValue = aiQuaternion(); - - // dummy position key - na->mPositionKeys = new aiVectorKey[1]; - na->mNumPositionKeys = 1; - - na->mPositionKeys[0].mTime = 0.; - na->mPositionKeys[0].mValue = aiVector3D(); - - return na.release(); -} - -aiNodeAnim *FBXConverter::GenerateTranslationNodeAnim(const std::string &name, - const Model & /*target*/, - const std::vector<const AnimationCurveNode *> &curves, - const LayerMap &layer_map, - int64_t start, int64_t stop, - double &max_time, - double &min_time, - bool inverse) { - std::unique_ptr<aiNodeAnim> na(new aiNodeAnim()); - na->mNodeName.Set(name); - - ConvertTranslationKeys(na.get(), curves, layer_map, start, stop, max_time, min_time); - - if (inverse) { - for (unsigned int i = 0; i < na->mNumPositionKeys; ++i) { - na->mPositionKeys[i].mValue *= -1.0f; - } - } - - // dummy scaling key - na->mScalingKeys = new aiVectorKey[1]; - na->mNumScalingKeys = 1; - - na->mScalingKeys[0].mTime = 0.; - na->mScalingKeys[0].mValue = aiVector3D(1.0f, 1.0f, 1.0f); - - // dummy rotation key - na->mRotationKeys = new aiQuatKey[1]; - na->mNumRotationKeys = 1; - - na->mRotationKeys[0].mTime = 0.; - na->mRotationKeys[0].mValue = aiQuaternion(); - - return na.release(); -} - -aiNodeAnim* FBXConverter::GenerateSimpleNodeAnim(const std::string& name, - const Model& target, - NodeMap::const_iterator chain[TransformationComp_MAXIMUM], - NodeMap::const_iterator iterEnd, - int64_t start, int64_t stop, - double& maxTime, - double& minTime) -{ - std::unique_ptr<aiNodeAnim> na(new aiNodeAnim()); - na->mNodeName.Set(name); - - const PropertyTable &props = target.Props(); - - // collect unique times and keyframe lists - KeyFrameListList keyframeLists[TransformationComp_MAXIMUM]; - KeyTimeList keytimes; - - for (size_t i = 0; i < TransformationComp_MAXIMUM; ++i) { - if (chain[i] == iterEnd) - continue; - - if (i == TransformationComp_Rotation || i == TransformationComp_PreRotation - || i == TransformationComp_PostRotation || i == TransformationComp_GeometricRotation) { - keyframeLists[i] = GetRotationKeyframeList((*chain[i]).second, start, stop); - } else { - keyframeLists[i] = GetKeyframeList((*chain[i]).second, start, stop); - } - - for (KeyFrameListList::const_iterator it = keyframeLists[i].begin(); it != keyframeLists[i].end(); ++it) { - const KeyTimeList& times = *std::get<0>(*it); - keytimes.insert(keytimes.end(), times.begin(), times.end()); - } - - // remove duplicates - std::sort(keytimes.begin(), keytimes.end()); - - auto last = std::unique(keytimes.begin(), keytimes.end()); - keytimes.erase(last, keytimes.end()); - } - - const Model::RotOrder rotOrder = target.RotationOrder(); - const size_t keyCount = keytimes.size(); - - aiVector3D defTranslate = PropertyGet(props, "Lcl Translation", aiVector3D(0.f, 0.f, 0.f)); - aiVector3D defRotation = PropertyGet(props, "Lcl Rotation", aiVector3D(0.f, 0.f, 0.f)); - aiVector3D defScale = PropertyGet(props, "Lcl Scaling", aiVector3D(1.f, 1.f, 1.f)); - aiQuaternion defQuat = EulerToQuaternion(defRotation, rotOrder); - - aiVectorKey* outTranslations = new aiVectorKey[keyCount]; - aiQuatKey* outRotations = new aiQuatKey[keyCount]; - aiVectorKey* outScales = new aiVectorKey[keyCount]; - - if (keyframeLists[TransformationComp_Translation].size() > 0) { - InterpolateKeys(outTranslations, keytimes, keyframeLists[TransformationComp_Translation], defTranslate, maxTime, minTime); - } else { - for (size_t i = 0; i < keyCount; ++i) { - outTranslations[i].mTime = CONVERT_FBX_TIME(keytimes[i]) * anim_fps; - outTranslations[i].mValue = defTranslate; - } - } - - if (keyframeLists[TransformationComp_Rotation].size() > 0) { - InterpolateKeys(outRotations, keytimes, keyframeLists[TransformationComp_Rotation], defRotation, maxTime, minTime, rotOrder); - } else { - for (size_t i = 0; i < keyCount; ++i) { - outRotations[i].mTime = CONVERT_FBX_TIME(keytimes[i]) * anim_fps; - outRotations[i].mValue = defQuat; - } - } - - if (keyframeLists[TransformationComp_Scaling].size() > 0) { - InterpolateKeys(outScales, keytimes, keyframeLists[TransformationComp_Scaling], defScale, maxTime, minTime); - } else { - for (size_t i = 0; i < keyCount; ++i) { - outScales[i].mTime = CONVERT_FBX_TIME(keytimes[i]) * anim_fps; - outScales[i].mValue = defScale; - } - } - - bool ok = false; - - const float zero_epsilon = ai_epsilon; - - const aiVector3D& preRotation = PropertyGet<aiVector3D>(props, "PreRotation", ok); - if (ok && preRotation.SquareLength() > zero_epsilon) { - const aiQuaternion preQuat = EulerToQuaternion(preRotation, Model::RotOrder_EulerXYZ); - for (size_t i = 0; i < keyCount; ++i) { - outRotations[i].mValue = preQuat * outRotations[i].mValue; - } - } - - const aiVector3D& postRotation = PropertyGet<aiVector3D>(props, "PostRotation", ok); - if (ok && postRotation.SquareLength() > zero_epsilon) { - const aiQuaternion postQuat = EulerToQuaternion(postRotation, Model::RotOrder_EulerXYZ); - for (size_t i = 0; i < keyCount; ++i) { - outRotations[i].mValue = outRotations[i].mValue * postQuat; - } - } - - // convert TRS to SRT - for (size_t i = 0; i < keyCount; ++i) { - aiQuaternion& r = outRotations[i].mValue; - aiVector3D& s = outScales[i].mValue; - aiVector3D& t = outTranslations[i].mValue; - - aiMatrix4x4 mat, temp; - aiMatrix4x4::Translation(t, mat); - mat *= aiMatrix4x4(r.GetMatrix()); - mat *= aiMatrix4x4::Scaling(s, temp); - - mat.Decompose(s, r, t); - } - - na->mNumScalingKeys = static_cast<unsigned int>(keyCount); - na->mNumRotationKeys = na->mNumScalingKeys; - na->mNumPositionKeys = na->mNumScalingKeys; - - na->mScalingKeys = outScales; - na->mRotationKeys = outRotations; - na->mPositionKeys = outTranslations; - - return na.release(); -} - -FBXConverter::KeyFrameListList FBXConverter::GetKeyframeList(const std::vector<const AnimationCurveNode *> &nodes, int64_t start, int64_t stop) { - KeyFrameListList inputs; - inputs.reserve(nodes.size() * 3); - - //give some breathing room for rounding errors - int64_t adj_start = start - 10000; - int64_t adj_stop = stop + 10000; - - for (const AnimationCurveNode *node : nodes) { - ai_assert(node); - - const AnimationCurveMap &curves = node->Curves(); - for (const AnimationCurveMap::value_type &kv : curves) { - - unsigned int mapto; - if (kv.first == "d|X") { - mapto = 0; - } else if (kv.first == "d|Y") { - mapto = 1; - } else if (kv.first == "d|Z") { - mapto = 2; - } else { - FBXImporter::LogWarn("ignoring scale animation curve, did not recognize target component"); - continue; - } - - const AnimationCurve *const curve = kv.second; - ai_assert(curve->GetKeys().size() == curve->GetValues().size()); - ai_assert(curve->GetKeys().size()); - - //get values within the start/stop time window - std::shared_ptr<KeyTimeList> Keys(new KeyTimeList()); - std::shared_ptr<KeyValueList> Values(new KeyValueList()); - const size_t count = curve->GetKeys().size(); - Keys->reserve(count); - Values->reserve(count); - for (size_t n = 0; n < count; n++) { - int64_t k = curve->GetKeys().at(n); - if (k >= adj_start && k <= adj_stop) { - Keys->push_back(k); - Values->push_back(curve->GetValues().at(n)); - } - } - - inputs.push_back(std::make_tuple(Keys, Values, mapto)); - } - } - return inputs; // pray for NRVO :-) -} - -FBXConverter::KeyFrameListList FBXConverter::GetRotationKeyframeList(const std::vector<const AnimationCurveNode *> &nodes, - int64_t start, int64_t stop) { - KeyFrameListList inputs; - inputs.reserve(nodes.size() * 3); - - //give some breathing room for rounding errors - const int64_t adj_start = start - 10000; - const int64_t adj_stop = stop + 10000; - - for (const AnimationCurveNode *node : nodes) { - ai_assert(node); - - const AnimationCurveMap &curves = node->Curves(); - for (const AnimationCurveMap::value_type &kv : curves) { - - unsigned int mapto; - if (kv.first == "d|X") { - mapto = 0; - } else if (kv.first == "d|Y") { - mapto = 1; - } else if (kv.first == "d|Z") { - mapto = 2; - } else { - FBXImporter::LogWarn("ignoring scale animation curve, did not recognize target component"); - continue; - } - - const AnimationCurve *const curve = kv.second; - ai_assert(curve->GetKeys().size() == curve->GetValues().size()); - ai_assert(curve->GetKeys().size()); - - //get values within the start/stop time window - std::shared_ptr<KeyTimeList> Keys(new KeyTimeList()); - std::shared_ptr<KeyValueList> Values(new KeyValueList()); - const size_t count = curve->GetKeys().size(); - - int64_t tp = curve->GetKeys().at(0); - float vp = curve->GetValues().at(0); - Keys->push_back(tp); - Values->push_back(vp); - if (count > 1) { - int64_t tc = curve->GetKeys().at(1); - float vc = curve->GetValues().at(1); - for (size_t n = 1; n < count; n++) { - while (std::abs(vc - vp) >= 180.0f) { - float step = std::floor(float(tc - tp) / (vc - vp) * 179.0f); - int64_t tnew = tp + int64_t(step); - float vnew = vp + (vc - vp) * step / float(tc - tp); - if (tnew >= adj_start && tnew <= adj_stop) { - Keys->push_back(tnew); - Values->push_back(vnew); - } - tp = tnew; - vp = vnew; - } - if (tc >= adj_start && tc <= adj_stop) { - Keys->push_back(tc); - Values->push_back(vc); - } - if (n + 1 < count) { - tp = tc; - vp = vc; - tc = curve->GetKeys().at(n + 1); - vc = curve->GetValues().at(n + 1); - } - } - } - inputs.push_back(std::make_tuple(Keys, Values, mapto)); - } - } - return inputs; -} - -KeyTimeList FBXConverter::GetKeyTimeList(const KeyFrameListList &inputs) { - ai_assert(!inputs.empty()); - - // reserve some space upfront - it is likely that the key-frame lists - // have matching time values, so max(of all key-frame lists) should - // be a good estimate. - KeyTimeList keys; - - size_t estimate = 0; - for (const KeyFrameList &kfl : inputs) { - estimate = std::max(estimate, std::get<0>(kfl)->size()); - } - - keys.reserve(estimate); - - std::vector<unsigned int> next_pos; - next_pos.resize(inputs.size(), 0); - - const size_t count = inputs.size(); - while (true) { - - int64_t min_tick = std::numeric_limits<int64_t>::max(); - for (size_t i = 0; i < count; ++i) { - const KeyFrameList &kfl = inputs[i]; - - if (std::get<0>(kfl)->size() > next_pos[i] && std::get<0>(kfl)->at(next_pos[i]) < min_tick) { - min_tick = std::get<0>(kfl)->at(next_pos[i]); - } - } - - if (min_tick == std::numeric_limits<int64_t>::max()) { - break; - } - keys.push_back(min_tick); - - for (size_t i = 0; i < count; ++i) { - const KeyFrameList &kfl = inputs[i]; - - while (std::get<0>(kfl)->size() > next_pos[i] && std::get<0>(kfl)->at(next_pos[i]) == min_tick) { - ++next_pos[i]; - } - } - } - - return keys; -} - -void FBXConverter::InterpolateKeys(aiVectorKey *valOut, const KeyTimeList &keys, const KeyFrameListList &inputs, - const aiVector3D &def_value, - double &max_time, - double &min_time) { - ai_assert(!keys.empty()); - ai_assert(nullptr != valOut); - - std::vector<unsigned int> next_pos; - const size_t count(inputs.size()); - - next_pos.resize(inputs.size(), 0); - - for (KeyTimeList::value_type time : keys) { - ai_real result[3] = { def_value.x, def_value.y, def_value.z }; - - for (size_t i = 0; i < count; ++i) { - const KeyFrameList &kfl = inputs[i]; - - const size_t ksize = std::get<0>(kfl)->size(); - if (ksize == 0) { - continue; - } - if (ksize > next_pos[i] && std::get<0>(kfl)->at(next_pos[i]) == time) { - ++next_pos[i]; - } - - const size_t id0 = next_pos[i] > 0 ? next_pos[i] - 1 : 0; - const size_t id1 = next_pos[i] == ksize ? ksize - 1 : next_pos[i]; - - // use lerp for interpolation - const KeyValueList::value_type valueA = std::get<1>(kfl)->at(id0); - const KeyValueList::value_type valueB = std::get<1>(kfl)->at(id1); - - const KeyTimeList::value_type timeA = std::get<0>(kfl)->at(id0); - const KeyTimeList::value_type timeB = std::get<0>(kfl)->at(id1); - - const ai_real factor = timeB == timeA ? ai_real(0.) : static_cast<ai_real>((time - timeA)) / (timeB - timeA); - const ai_real interpValue = static_cast<ai_real>(valueA + (valueB - valueA) * factor); - - result[std::get<2>(kfl)] = interpValue; - } - - // magic value to convert fbx times to seconds - valOut->mTime = CONVERT_FBX_TIME(time) * anim_fps; - - min_time = std::min(min_time, valOut->mTime); - max_time = std::max(max_time, valOut->mTime); - - valOut->mValue.x = result[0]; - valOut->mValue.y = result[1]; - valOut->mValue.z = result[2]; - - ++valOut; - } -} - -void FBXConverter::InterpolateKeys(aiQuatKey *valOut, const KeyTimeList &keys, const KeyFrameListList &inputs, - const aiVector3D &def_value, - double &maxTime, - double &minTime, - Model::RotOrder order) { - ai_assert(!keys.empty()); - ai_assert(nullptr != valOut); - - std::unique_ptr<aiVectorKey[]> temp(new aiVectorKey[keys.size()]); - InterpolateKeys(temp.get(), keys, inputs, def_value, maxTime, minTime); - - aiMatrix4x4 m; - - aiQuaternion lastq; - - for (size_t i = 0, c = keys.size(); i < c; ++i) { - - valOut[i].mTime = temp[i].mTime; - - GetRotationMatrix(order, temp[i].mValue, m); - aiQuaternion quat = aiQuaternion(aiMatrix3x3(m)); - - // take shortest path by checking the inner product - // http://www.3dkingdoms.com/weekly/weekly.php?a=36 - if (quat.x * lastq.x + quat.y * lastq.y + quat.z * lastq.z + quat.w * lastq.w < 0) { - quat.Conjugate(); - quat.w = -quat.w; - } - lastq = quat; - - valOut[i].mValue = quat; - } -} - -aiQuaternion FBXConverter::EulerToQuaternion(const aiVector3D &rot, Model::RotOrder order) { - aiMatrix4x4 m; - GetRotationMatrix(order, rot, m); - - return aiQuaternion(aiMatrix3x3(m)); -} - -void FBXConverter::ConvertScaleKeys(aiNodeAnim *na, const std::vector<const AnimationCurveNode *> &nodes, const LayerMap & /*layers*/, - int64_t start, int64_t stop, - double &maxTime, - double &minTime) { - ai_assert(nodes.size()); - - // XXX for now, assume scale should be blended geometrically (i.e. two - // layers should be multiplied with each other). There is a FBX - // property in the layer to specify the behaviour, though. - - const KeyFrameListList &inputs = GetKeyframeList(nodes, start, stop); - const KeyTimeList &keys = GetKeyTimeList(inputs); - - na->mNumScalingKeys = static_cast<unsigned int>(keys.size()); - na->mScalingKeys = new aiVectorKey[keys.size()]; - if (keys.size() > 0) { - InterpolateKeys(na->mScalingKeys, keys, inputs, aiVector3D(1.0f, 1.0f, 1.0f), maxTime, minTime); - } -} - -void FBXConverter::ConvertTranslationKeys(aiNodeAnim *na, const std::vector<const AnimationCurveNode *> &nodes, - const LayerMap & /*layers*/, - int64_t start, int64_t stop, - double &maxTime, - double &minTime) { - ai_assert(nodes.size()); - - // XXX see notes in ConvertScaleKeys() - const KeyFrameListList &inputs = GetKeyframeList(nodes, start, stop); - const KeyTimeList &keys = GetKeyTimeList(inputs); - - na->mNumPositionKeys = static_cast<unsigned int>(keys.size()); - na->mPositionKeys = new aiVectorKey[keys.size()]; - if (keys.size() > 0) - InterpolateKeys(na->mPositionKeys, keys, inputs, aiVector3D(0.0f, 0.0f, 0.0f), maxTime, minTime); -} - -void FBXConverter::ConvertRotationKeys(aiNodeAnim *na, const std::vector<const AnimationCurveNode *> &nodes, - const LayerMap & /*layers*/, - int64_t start, int64_t stop, - double &maxTime, - double &minTime, - Model::RotOrder order) { - ai_assert(nodes.size()); - - // XXX see notes in ConvertScaleKeys() - const std::vector<KeyFrameList> &inputs = GetRotationKeyframeList(nodes, start, stop); - const KeyTimeList &keys = GetKeyTimeList(inputs); - - na->mNumRotationKeys = static_cast<unsigned int>(keys.size()); - na->mRotationKeys = new aiQuatKey[keys.size()]; - if (!keys.empty()) { - InterpolateKeys(na->mRotationKeys, keys, inputs, aiVector3D(0.0f, 0.0f, 0.0f), maxTime, minTime, order); - } -} - -void FBXConverter::ConvertGlobalSettings() { - if (nullptr == mSceneOut) { - return; - } - - const bool hasGenerator = !doc.Creator().empty(); - - mSceneOut->mMetaData = aiMetadata::Alloc(16 + (hasGenerator ? 1 : 0)); - mSceneOut->mMetaData->Set(0, "UpAxis", doc.GlobalSettings().UpAxis()); - mSceneOut->mMetaData->Set(1, "UpAxisSign", doc.GlobalSettings().UpAxisSign()); - mSceneOut->mMetaData->Set(2, "FrontAxis", doc.GlobalSettings().FrontAxis()); - mSceneOut->mMetaData->Set(3, "FrontAxisSign", doc.GlobalSettings().FrontAxisSign()); - mSceneOut->mMetaData->Set(4, "CoordAxis", doc.GlobalSettings().CoordAxis()); - mSceneOut->mMetaData->Set(5, "CoordAxisSign", doc.GlobalSettings().CoordAxisSign()); - mSceneOut->mMetaData->Set(6, "OriginalUpAxis", doc.GlobalSettings().OriginalUpAxis()); - mSceneOut->mMetaData->Set(7, "OriginalUpAxisSign", doc.GlobalSettings().OriginalUpAxisSign()); - //const double unitScaleFactor = (double)doc.GlobalSettings().UnitScaleFactor(); - mSceneOut->mMetaData->Set(8, "UnitScaleFactor", doc.GlobalSettings().UnitScaleFactor()); - mSceneOut->mMetaData->Set(9, "OriginalUnitScaleFactor", doc.GlobalSettings().OriginalUnitScaleFactor()); - mSceneOut->mMetaData->Set(10, "AmbientColor", doc.GlobalSettings().AmbientColor()); - mSceneOut->mMetaData->Set(11, "FrameRate", (int)doc.GlobalSettings().TimeMode()); - mSceneOut->mMetaData->Set(12, "TimeSpanStart", doc.GlobalSettings().TimeSpanStart()); - mSceneOut->mMetaData->Set(13, "TimeSpanStop", doc.GlobalSettings().TimeSpanStop()); - mSceneOut->mMetaData->Set(14, "CustomFrameRate", doc.GlobalSettings().CustomFrameRate()); - mSceneOut->mMetaData->Set(15, AI_METADATA_SOURCE_FORMAT_VERSION, aiString(ai_to_string(doc.FBXVersion()))); - if (hasGenerator) { - mSceneOut->mMetaData->Set(16, AI_METADATA_SOURCE_GENERATOR, aiString(doc.Creator())); - } -} - -void FBXConverter::TransferDataToScene() { - ai_assert(!mSceneOut->mMeshes); - ai_assert(!mSceneOut->mNumMeshes); - - // note: the trailing () ensures initialization with nullptr - not - // many C++ users seem to know this, so pointing it out to avoid - // confusion why this code works. - - if (!mMeshes.empty()) { - mSceneOut->mMeshes = new aiMesh *[mMeshes.size()](); - mSceneOut->mNumMeshes = static_cast<unsigned int>(mMeshes.size()); - - std::swap_ranges(mMeshes.begin(), mMeshes.end(), mSceneOut->mMeshes); - } - - if (!materials.empty()) { - mSceneOut->mMaterials = new aiMaterial *[materials.size()](); - mSceneOut->mNumMaterials = static_cast<unsigned int>(materials.size()); - - std::swap_ranges(materials.begin(), materials.end(), mSceneOut->mMaterials); - } - - if (!animations.empty()) { - mSceneOut->mAnimations = new aiAnimation *[animations.size()](); - mSceneOut->mNumAnimations = static_cast<unsigned int>(animations.size()); - - std::swap_ranges(animations.begin(), animations.end(), mSceneOut->mAnimations); - } - - if (!lights.empty()) { - mSceneOut->mLights = new aiLight *[lights.size()](); - mSceneOut->mNumLights = static_cast<unsigned int>(lights.size()); - - std::swap_ranges(lights.begin(), lights.end(), mSceneOut->mLights); - } - - if (!cameras.empty()) { - mSceneOut->mCameras = new aiCamera *[cameras.size()](); - mSceneOut->mNumCameras = static_cast<unsigned int>(cameras.size()); - - std::swap_ranges(cameras.begin(), cameras.end(), mSceneOut->mCameras); - } - - if (!textures.empty()) { - mSceneOut->mTextures = new aiTexture *[textures.size()](); - mSceneOut->mNumTextures = static_cast<unsigned int>(textures.size()); - - std::swap_ranges(textures.begin(), textures.end(), mSceneOut->mTextures); - } -} - -void FBXConverter::ConvertOrphanedEmbeddedTextures() { - // in C++14 it could be: - // for (auto&& [id, object] : objects) - for (auto &&id_and_object : doc.Objects()) { - auto &&id = std::get<0>(id_and_object); - auto &&object = std::get<1>(id_and_object); - // If an object doesn't have parent - if (doc.ConnectionsBySource().count(id) == 0) { - const Texture *realTexture = nullptr; - try { - const auto &element = object->GetElement(); - const Token &key = element.KeyToken(); - const char *obtype = key.begin(); - const size_t length = static_cast<size_t>(key.end() - key.begin()); - if (strncmp(obtype, "Texture", length) == 0) { - if (const Texture *texture = static_cast<const Texture *>(object->Get())) { - if (texture->Media() && texture->Media()->ContentLength() > 0) { - realTexture = texture; - } - } - } - } catch (...) { - // do nothing - } - if (realTexture) { - const Video *media = realTexture->Media(); - unsigned int index = ConvertVideo(*media); - textures_converted[media] = index; - } - } - } -} - -// ------------------------------------------------------------------------------------------------ -void ConvertToAssimpScene(aiScene *out, const Document &doc, bool removeEmptyBones) { - FBXConverter converter(out, doc, removeEmptyBones); -} - -} // namespace FBX -} // namespace Assimp - -#endif |