GLTFUtils.h | Ansys Developer Portal

/*
 * Copyright 2018-2021 ANSYS, Inc. Unauthorized use, distribution, or duplication is prohibited.
 * 
 * Restricted Rights Legend
 *
 * Use, duplication, or disclosure of this
 * software and its documentation by the
 * Government is subject to restrictions as
 * set forth in subdivision [(b)(3)(ii)] of
 * the Rights in Technical Data and Computer
 * Software clause at 52.227-7013.
 */
#ifndef __INCLUDED_GLTF_GLTFUTILS__
#define __INCLUDED_GLTF_GLTFUTILS__
 
#include "GLTFCommon.h"
 
namespace ANSYS { namespace AVZ { namespace GLTFWriter {
    namespace Utils {
        GLTFWRITERSPEC void ComputeElementNormals3(const unsigned int numVertices, 
            const float *vertices, 
            const unsigned int numElements, 
            const unsigned int elementSize, 
            const unsigned short *indices, 
            float *normals 
        );
        GLTFWRITERSPEC void ComputeElementNormals3(const unsigned int numVertices, 
            const float *vertices, 
            const unsigned int numElements, 
            const unsigned int elementSize, 
            const unsigned int *indices, 
            float *normals 
        );
 
        GLTFWRITERSPEC void ComputeVertexNormals3(const unsigned int numVertices, 
            const float *vertices, 
            const unsigned int numElements, 
            const unsigned int elementSize, 
            const unsigned short *indices, 
            float *normals 
        );
        GLTFWRITERSPEC void ComputeVertexNormals3(const unsigned int numVertices, 
            const float *vertices, 
            const unsigned int numElements, 
            const unsigned int elementSize, 
            const unsigned int *indices, 
            float *normals 
        );
 
#if 0
        GLTFWRITERSPEC unsigned int CreateVectors(unsigned int resolution, 
                                                  float offset, 
                                                  unsigned int numLocations, 
                                                  const float *locations, 
                                                  const float *lengths, 
                                                  const float *directions, 
                                                  std::vector<float> &vertices, 
                                                  std::vector<unsigned int> &indices, 
                                                  std::vector<unsigned int> &newToOld 
                                                  );
        GLTFWRITERSPEC void CreateStreamTubes(unsigned int resolution, 
                                              float diameter, 
                                              unsigned int numLines, 
                                              const unsigned int *lineLengths, 
                                              const float *locations, 
                                              std::vector<float> &vertices, 
                                              std::vector<unsigned int> &indices, 
                                              std::vector<unsigned int> &newToOld 
                                              );
#endif
 
        class Repack 
        {
        protected:
            virtual ~Repack() {}
 
        public:
            static GLTFWRITERSPEC Repack *Create(unsigned int elementCount, 
                unsigned int elementSize, 
                const unsigned int *indices 
            );
            static GLTFWRITERSPEC void Destroy(Repack *packer);
 
            GLTFWRITERSPEC virtual unsigned int NumPacks() const = 0;
            GLTFWRITERSPEC virtual unsigned int NumAttributes(unsigned int packNum 
            ) const = 0;
            GLTFWRITERSPEC virtual const int *ConstructRepackAttribute(const unsigned int *indices, 
                unsigned int attributeSize, 
                const int *attributeData, 
                unsigned int packNum 
            ) = 0;
            GLTFWRITERSPEC virtual const float *ConstructRepackAttribute(const unsigned int *indices, 
                unsigned int attributeSize, 
                const float *attributeData, 
                unsigned int packNum 
            ) = 0;
            GLTFWRITERSPEC virtual unsigned int NumElements(unsigned int packNum 
            ) const = 0;
            GLTFWRITERSPEC virtual const unsigned short *ConstructRepackIndex(const unsigned int *indices, 
                unsigned int packNum 
            ) = 0;
        };
    };
 
} } } 
 
#endif
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