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-/*
-Open Asset Import Library (ASSIMP)
-----------------------------------------------------------------------
-
-Copyright (c) 2006-2010, ASSIMP Development 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 Development 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 PretransformVertices.h
- * @brief Defines a post processing step to pretransform all
- * vertices in the scenegraph
- */
-#ifndef AI_PRETRANSFORMVERTICES_H_INC
-#define AI_PRETRANSFORMVERTICES_H_INC
-
-#include "BaseProcess.h"
-#include "../include/aiMesh.h"
-
-class PretransformVerticesTest;
-namespace Assimp {
-
-// ---------------------------------------------------------------------------
-/** The PretransformVertices pretransforms all vertices in the nodegraph
- * and removes the whole graph. The output is a list of meshes, one for
- * each material.
-*/
-class ASSIMP_API PretransformVertices : public BaseProcess
-{
- friend class Importer;
- friend class ::PretransformVerticesTest;
-
-protected:
- /** Constructor to be privately used by Importer */
- PretransformVertices ();
-
- /** Destructor, private as well */
- ~PretransformVertices ();
-
-public:
-
- // -------------------------------------------------------------------
- // Check whether step is active
- bool IsActive( unsigned int pFlags) const;
-
- // -------------------------------------------------------------------
- // Execute step on a given scene
- void Execute( aiScene* pScene);
-
- // -------------------------------------------------------------------
- // Setup import settings
- void SetupProperties(const Importer* pImp);
-
-
- // -------------------------------------------------------------------
- /** @brief Toggle the 'keep hierarchy' option
- * @param d hm ... difficult to guess what this means, hu!?
- */
- void KeepHierarchy(bool d) {
- configKeepHierarchy = d;
- }
-
- // -------------------------------------------------------------------
- /** @brief Check whether 'keep hierarchy' is currently enabled.
- * @return ...
- */
- bool IsHierarchyKept() const {
- return configKeepHierarchy;
- }
-
-private:
-
- // -------------------------------------------------------------------
- // Count the number of nodes
- unsigned int CountNodes( aiNode* pcNode );
-
- // -------------------------------------------------------------------
- // Get a bitwise combination identifying the vertex format of a mesh
- unsigned int GetMeshVFormat(aiMesh* pcMesh);
-
- // -------------------------------------------------------------------
- // Count the number of vertices in the whole scene and a given
- // material index
- void CountVerticesAndFaces( aiScene* pcScene, aiNode* pcNode,
- unsigned int iMat,
- unsigned int iVFormat,
- unsigned int* piFaces,
- unsigned int* piVertices);
-
- // -------------------------------------------------------------------
- // Collect vertex/face data
- void CollectData( aiScene* pcScene, aiNode* pcNode,
- unsigned int iMat,
- unsigned int iVFormat,
- aiMesh* pcMeshOut,
- unsigned int aiCurrent[2],
- unsigned int* num_refs);
-
- // -------------------------------------------------------------------
- // Get a list of all vertex formats that occur for a given material
- // The output list contains duplicate elements
- void GetVFormatList( aiScene* pcScene, unsigned int iMat,
- std::list<unsigned int>& aiOut);
-
- // -------------------------------------------------------------------
- // Compute the absolute transformation matrices of each node
- void ComputeAbsoluteTransform( aiNode* pcNode );
-
- // -------------------------------------------------------------------
- // Simple routine to build meshes in worldspace, no further optimization
- void BuildWCSMeshes(std::vector<aiMesh*>& out, aiMesh** in,
- unsigned int numIn, aiNode* node);
-
- // -------------------------------------------------------------------
- // Apply the node transformation to a mesh
- void ApplyTransform(aiMesh* mesh, const aiMatrix4x4& mat);
-
- // -------------------------------------------------------------------
- // Reset transformation matrices to identity
- void MakeIdentityTransform(aiNode* nd);
-
- // -------------------------------------------------------------------
- // Build reference counters for all meshes
- void BuildMeshRefCountArray(aiNode* nd, unsigned int * refs);
-
-
-
- //! Configuration option: keep scene hierarchy as long as possible
- bool configKeepHierarchy, configNormalize;
-
-};
-
-} // end of namespace Assimp
-
-#endif // !!AI_GENFACENORMALPROCESS_H_INC