NvBlastExtExporter.h

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#ifndef NVBLASTEXTEXPORTER_H
#define NVBLASTEXTEXPORTER_H

#include "NvBlastTypes.h"
#include "NvCTypes.h"

struct NvBlastAsset;

namespace Nv
{
namespace Blast
{
struct AuthoringResult;
struct CollisionHull;

struct Material
{
    const char* name;
    const char* diffuse_tex;
};

struct ExporterMeshData
{
    NvBlastAsset* asset; //Blast asset

    uint32_t positionsCount; //Number of positions

    uint32_t normalsCount; //Number of normals

    uint32_t uvsCount; //Number of textures uv

    NvcVec3* positions; //Array of positions

    NvcVec3* normals;  // Array of normals

    NvcVec2* uvs;  // Array of textures uv

    uint32_t meshCount; //Number of meshes (chunks)

    uint32_t submeshCount; //Number of submeshes

    Material* submeshMats; 


    uint32_t* submeshOffsets;

    uint32_t* posIndex; //Array of position indices

    uint32_t* normIndex; //Array of normals indices

    uint32_t* texIndex; //Array of texture indices


    uint32_t* hullsOffsets;

    CollisionHull** hulls; //Array of pointers to hull for all meshes
};

class IMeshFileReader
{
public:
    
    virtual void            release() = 0;

    /*
        Load from the specified file path
    */
    virtual void            loadFromFile(const char* filename) = 0;

    virtual uint32_t        getVerticesCount() const = 0;

    virtual uint32_t        getIndicesCount() const = 0;

    virtual NvcVec3*    getPositionArray() = 0;

    virtual NvcVec3*    getNormalsArray() = 0;

    virtual NvcVec2*    getUvArray() = 0;

    virtual int32_t*        getMaterialIds() = 0;

    virtual int32_t*        getSmoothingGroups() = 0;

    virtual const char*     getMaterialName(int32_t id) = 0;

    virtual int32_t         getMaterialCount() = 0;



    virtual uint32_t*       getIndexArray() = 0;


    virtual bool            isCollisionLoaded() = 0;

    virtual uint32_t        getCollision(uint32_t*& hullsOffset, CollisionHull**& hulls) = 0;

};

class IFbxFileReader : public IMeshFileReader
{
public:
    virtual uint32_t getBoneInfluences(uint32_t*& out) = 0;

    virtual uint32_t getBoneCount() = 0;
};

class IMeshFileWriter
{
public:

    virtual void release() = 0;

    virtual bool appendMesh(const AuthoringResult& aResult, const char* assetName, bool nonSkinned = false) = 0;

    virtual bool appendMesh(const ExporterMeshData& meshData, const char* assetName, bool nonSkinned = false) = 0;

    virtual bool saveToFile(const char* assetName, const char* outputPath) = 0;

    virtual void setInteriorIndex(int32_t index) = 0;
};

}
}

NVBLAST_API Nv::Blast::IMeshFileReader* NvBlastExtExporterCreateObjFileReader();

NVBLAST_API Nv::Blast::IFbxFileReader* NvBlastExtExporterCreateFbxFileReader();

NVBLAST_API Nv::Blast::IMeshFileWriter* NvBlastExtExporterCreateObjFileWriter();

NVBLAST_API Nv::Blast::IMeshFileWriter* NvBlastExtExporterCreateFbxFileWriter(bool outputFBXAscii = false);

#endif //NVBLASTEXTEXPORTER_H