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sdk/extensions/authoring/include/NvBlastExtAuthoringCollisionBuilder.h

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#ifndef NVBLASTEXTAUTHORINGCOLLISIONBUILDER_H
#define NVBLASTEXTAUTHORINGCOLLISIONBUILDER_H

#include "NvBlastTypes.h"

namespace physx
{
class PxCooking;
class PxPhysicsInsertionCallback;
class PxVec3;
class PxConvexMesh;
}


namespace Nv
{
namespace Blast
{

struct CollisionHull;
struct Triangle;

struct CollisionParams
{
    CollisionParams()
    {
        setDefault();
    }
    void setDefault()
    {
        maximumNumberOfHulls = 8;
        maximumNumberOfVerticesPerHull = 64;
        voxelGridResolution = 1000000;
        concavity = 0.0025f;
    }
    uint32_t maximumNumberOfHulls; // Maximum number of convex hull generated for one chunk. If equal to 1 convex decomposition is disabled.
    uint32_t maximumNumberOfVerticesPerHull; // Controls the maximum number of triangles per convex-hull (default=64, range=4-1024)
    uint32_t voxelGridResolution; // Voxel grid resolution used for chunk convex decomposition (default=1,000,000, range=10,000-16,000,000).
    float concavity; // Value between 0 and 1, controls how accurate hull generation is
};

class ConvexMeshBuilder
{
public:
    virtual ~ConvexMeshBuilder() {}

    virtual void                    release() = 0;

    virtual CollisionHull*          buildCollisionGeometry(uint32_t verticesCount, const physx::PxVec3* vertexData) = 0;

    virtual physx::PxConvexMesh*    buildConvexMesh(uint32_t verticesCount, const physx::PxVec3* vertexData) = 0;


    virtual physx::PxConvexMesh*    buildConvexMesh(const CollisionHull& hull) = 0;


    virtual void                    trimCollisionGeometry(uint32_t chunksCount, CollisionHull** in, const uint32_t* chunkDepth) = 0;


    virtual int32_t                 buildMeshConvexDecomposition(const Nv::Blast::Triangle* mesh, uint32_t triangleCount, const CollisionParams& params, CollisionHull** &convexes) = 0;

};

} // namespace Blast
} // namespace Nv


#endif // ifndef NVBLASTEXTAUTHORINGCOLLISIONBUILDER_H

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