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authorsanine <sanine.not@pm.me>2022-04-16 11:55:09 -0500
committersanine <sanine.not@pm.me>2022-04-16 11:55:09 -0500
commitdb81b925d776103326128bf629cbdda576a223e7 (patch)
tree58bea8155c686733310009f6bed7363f91fbeb9d /libs/assimp/code/PostProcessing/LimitBoneWeightsProcess.h
parent55860037b14fb3893ba21cf2654c83d349cc1082 (diff)
move 3rd-party librarys into libs/ and add built-in honeysuckle
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+/*
+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.
+
+----------------------------------------------------------------------
+*/
+
+/** Defines a post processing step to limit the number of bones affecting a single vertex. */
+#ifndef AI_LIMITBONEWEIGHTSPROCESS_H_INC
+#define AI_LIMITBONEWEIGHTSPROCESS_H_INC
+
+#include "Common/BaseProcess.h"
+
+// Forward declarations
+struct aiMesh;
+
+class LimitBoneWeightsTest;
+
+namespace Assimp {
+
+// NOTE: If you change these limits, don't forget to change the
+// corresponding values in all Assimp ports
+
+// **********************************************************
+// Java: ConfigProperty.java,
+// ConfigProperty.DEFAULT_BONE_WEIGHT_LIMIT
+// **********************************************************
+
+#if (!defined AI_LMW_MAX_WEIGHTS)
+# define AI_LMW_MAX_WEIGHTS 0x4
+#endif // !! AI_LMW_MAX_WEIGHTS
+
+// ---------------------------------------------------------------------------
+/** This post processing step limits the number of bones affecting a vertex
+* to a certain maximum value. If a vertex is affected by more than that number
+* of bones, the bone weight with the least influence on this vertex are removed.
+* The other weights on this bone are then renormalized to assure the sum weight
+* to be 1.
+*/
+class ASSIMP_API LimitBoneWeightsProcess : public BaseProcess {
+public:
+ LimitBoneWeightsProcess();
+ ~LimitBoneWeightsProcess();
+
+ // -------------------------------------------------------------------
+ /** Returns whether the processing step is present in the given flag.
+ * @param pFlags The processing flags the importer was called with.
+ * A bitwise combination of #aiPostProcessSteps.
+ * @return true if the process is present in this flag fields,
+ * false if not.
+ */
+ bool IsActive( unsigned int pFlags) const;
+
+ // -------------------------------------------------------------------
+ /** Called prior to ExecuteOnScene().
+ * The function is a request to the process to update its configuration
+ * basing on the Importer's configuration property list.
+ */
+ void SetupProperties(const Importer* pImp);
+
+ // -------------------------------------------------------------------
+ /** Limits the bone weight count for all vertices in the given mesh.
+ * @param pMesh The mesh to process.
+ */
+ void ProcessMesh( aiMesh* pMesh);
+
+ // -------------------------------------------------------------------
+ /** Executes the post processing step on the given imported data.
+ * At the moment a process is not supposed to fail.
+ * @param pScene The imported data to work at.
+ */
+ void Execute( aiScene* pScene);
+
+ // -------------------------------------------------------------------
+ /** Describes a bone weight on a vertex */
+ struct Weight {
+ unsigned int mBone; ///< Index of the bone
+ float mWeight; ///< Weight of that bone on this vertex
+ Weight() AI_NO_EXCEPT
+ : mBone(0)
+ , mWeight(0.0f) {
+ // empty
+ }
+
+ Weight( unsigned int pBone, float pWeight)
+ : mBone(pBone)
+ , mWeight(pWeight) {
+ // empty
+ }
+
+ /** Comparison operator to sort bone weights by descending weight */
+ bool operator < (const Weight& pWeight) const {
+ return mWeight > pWeight.mWeight;
+ }
+ };
+
+ /** Maximum number of bones influencing any single vertex. */
+ unsigned int mMaxWeights;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_LIMITBONEWEIGHTSPROCESS_H_INC