diff options
Diffstat (limited to 'src/mesh/assimp-master/code/PostProcessing/GenFaceNormalsProcess.cpp')
| -rw-r--r-- | src/mesh/assimp-master/code/PostProcessing/GenFaceNormalsProcess.cpp | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/src/mesh/assimp-master/code/PostProcessing/GenFaceNormalsProcess.cpp b/src/mesh/assimp-master/code/PostProcessing/GenFaceNormalsProcess.cpp deleted file mode 100644 index 517dd3b..0000000 --- a/src/mesh/assimp-master/code/PostProcessing/GenFaceNormalsProcess.cpp +++ /dev/null @@ -1,147 +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 Implementation of the post processing step to generate face -* normals for all imported faces. -*/ - -#include "GenFaceNormalsProcess.h" -#include <assimp/Exceptional.h> -#include <assimp/postprocess.h> -#include <assimp/qnan.h> -#include <assimp/scene.h> -#include <assimp/DefaultLogger.hpp> - -using namespace Assimp; - -// ------------------------------------------------------------------------------------------------ -// Constructor to be privately used by Importer -GenFaceNormalsProcess::GenFaceNormalsProcess() { - // nothing to do here -} - -// ------------------------------------------------------------------------------------------------ -// Destructor, private as well -GenFaceNormalsProcess::~GenFaceNormalsProcess() { - // nothing to do here -} - -// ------------------------------------------------------------------------------------------------ -// Returns whether the processing step is present in the given flag field. -bool GenFaceNormalsProcess::IsActive(unsigned int pFlags) const { - force_ = (pFlags & aiProcess_ForceGenNormals) != 0; - flippedWindingOrder_ = (pFlags & aiProcess_FlipWindingOrder) != 0; - return (pFlags & aiProcess_GenNormals) != 0; -} - -// ------------------------------------------------------------------------------------------------ -// Executes the post processing step on the given imported data. -void GenFaceNormalsProcess::Execute(aiScene *pScene) { - ASSIMP_LOG_DEBUG("GenFaceNormalsProcess begin"); - - if (pScene->mFlags & AI_SCENE_FLAGS_NON_VERBOSE_FORMAT) { - throw DeadlyImportError("Post-processing order mismatch: expecting pseudo-indexed (\"verbose\") vertices here"); - } - - bool bHas = false; - for (unsigned int a = 0; a < pScene->mNumMeshes; a++) { - if (this->GenMeshFaceNormals(pScene->mMeshes[a])) { - bHas = true; - } - } - if (bHas) { - ASSIMP_LOG_INFO("GenFaceNormalsProcess finished. " - "Face normals have been calculated"); - } else { - ASSIMP_LOG_DEBUG("GenFaceNormalsProcess finished. " - "Normals are already there"); - } -} - -// ------------------------------------------------------------------------------------------------ -// Executes the post processing step on the given imported data. -bool GenFaceNormalsProcess::GenMeshFaceNormals(aiMesh *pMesh) { - if (nullptr != pMesh->mNormals) { - if (force_) { - delete[] pMesh->mNormals; - } else { - return false; - } - } - - // If the mesh consists of lines and/or points but not of - // triangles or higher-order polygons the normal vectors - // are undefined. - if (!(pMesh->mPrimitiveTypes & (aiPrimitiveType_TRIANGLE | aiPrimitiveType_POLYGON))) { - ASSIMP_LOG_INFO("Normal vectors are undefined for line and point meshes"); - return false; - } - - // allocate an array to hold the output normals - pMesh->mNormals = new aiVector3D[pMesh->mNumVertices]; - const float qnan = get_qnan(); - - // iterate through all faces and compute per-face normals but store them per-vertex. - for (unsigned int a = 0; a < pMesh->mNumFaces; a++) { - const aiFace &face = pMesh->mFaces[a]; - if (face.mNumIndices < 3) { - // either a point or a line -> no well-defined normal vector - for (unsigned int i = 0; i < face.mNumIndices; ++i) { - pMesh->mNormals[face.mIndices[i]] = aiVector3D(qnan); - } - continue; - } - - const aiVector3D *pV1 = &pMesh->mVertices[face.mIndices[0]]; - const aiVector3D *pV2 = &pMesh->mVertices[face.mIndices[1]]; - const aiVector3D *pV3 = &pMesh->mVertices[face.mIndices[face.mNumIndices - 1]]; - if (flippedWindingOrder_) - std::swap( pV2, pV3 ); - const aiVector3D vNor = ((*pV2 - *pV1) ^ (*pV3 - *pV1)).NormalizeSafe(); - - for (unsigned int i = 0; i < face.mNumIndices; ++i) { - pMesh->mNormals[face.mIndices[i]] = vNor; - } - } - return true; -} |