NvBlastExtDamageShaders.h

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#ifndef NVBLASTEXTDAMAGESHADERS_H
#define NVBLASTEXTDAMAGESHADERS_H

#include "NvBlastTypes.h"
#include "NvBlastDebugRender.h"


//  Damage Accelerator 

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

    virtual Nv::Blast::DebugBuffer fillDebugRender(int depth = -1, bool segments = false) = 0;
};

NVBLAST_API NvBlastExtDamageAccelerator* NvBlastExtDamageAcceleratorCreate(const NvBlastAsset* asset, int type);


//  Damage Program

struct NvBlastExtProgramParams
{
    NvBlastExtProgramParams(const void* desc, const void* material_ = nullptr, NvBlastExtDamageAccelerator* accelerator_ = nullptr)
        : damageDesc(desc), material(material_), accelerator(accelerator_) {}

    const void* damageDesc;         
    const void* material;           
    NvBlastExtDamageAccelerator*    accelerator;
};


//  Common Material 

struct NvBlastExtMaterial
{
    NvBlastExtMaterial() : health(100.f), minDamageThreshold(0.0f), maxDamageThreshold(1.0f) {}

    float   health;                 
    float   minDamageThreshold;     
    float   maxDamageThreshold;     

    float getNormalizedDamage(float damageInHealth) const
    {
        const float damage = health > 0.f ? damageInHealth / health : 1.0f;
        return damage > minDamageThreshold ? (damage < maxDamageThreshold ? damage : maxDamageThreshold) : 0.f;
    }
};


//  Point Radial Damage

struct NvBlastExtRadialDamageDesc
{
    float   damage;         
    float   position[3];    
    float   minRadius;      
    float   maxRadius;      
};

NVBLAST_API void NvBlastExtFalloffGraphShader(NvBlastFractureBuffers* commandBuffers, const NvBlastGraphShaderActor* actor, const void* params);
NVBLAST_API void NvBlastExtFalloffSubgraphShader(NvBlastFractureBuffers* commandBuffers, const NvBlastSubgraphShaderActor* actor, const void* params);
NVBLAST_API void NvBlastExtCutterGraphShader(NvBlastFractureBuffers* commandBuffers, const NvBlastGraphShaderActor* actor, const void* params);
NVBLAST_API void NvBlastExtCutterSubgraphShader(NvBlastFractureBuffers* commandBuffers, const NvBlastSubgraphShaderActor* actor, const void* params);


//  Capsule Radial Damage

struct NvBlastExtCapsuleRadialDamageDesc
{
    float   damage;         
    float   position0[3];   
    float   position1[3];   
    float   minRadius;      
    float   maxRadius;      
};

NVBLAST_API void NvBlastExtCapsuleFalloffGraphShader(NvBlastFractureBuffers* commandBuffers, const NvBlastGraphShaderActor* actor, const void* params);
NVBLAST_API void NvBlastExtCapsuleFalloffSubgraphShader(NvBlastFractureBuffers* commandBuffers, const NvBlastSubgraphShaderActor* actor, const void* params);


//  Shear Damage

struct NvBlastExtShearDamageDesc
{
    float   damage;         

    float   normal[3];      
    float   position[3];    

    float   minRadius;      
    float   maxRadius;      
};

NVBLAST_API void NvBlastExtShearGraphShader(NvBlastFractureBuffers* commandBuffers, const NvBlastGraphShaderActor* actor, const void* params);
NVBLAST_API void NvBlastExtShearSubgraphShader(NvBlastFractureBuffers* commandBuffers, const NvBlastSubgraphShaderActor* actor, const void* params);


//  Triangle Intersection Damage

struct NvBlastExtTriangleIntersectionDamageDesc
{
    float   damage;         
    NvcVec3 position0;      
    NvcVec3 position1;      
    NvcVec3 position2;      
};

NVBLAST_API void NvBlastExtTriangleIntersectionGraphShader(NvBlastFractureBuffers* commandBuffers, const NvBlastGraphShaderActor* actor, const void* params);
NVBLAST_API void NvBlastExtTriangleIntersectionSubgraphShader(NvBlastFractureBuffers* commandBuffers, const NvBlastSubgraphShaderActor* actor, const void* params);


//  Impact Spread

struct NvBlastExtImpactSpreadDamageDesc
{
    float   damage;         
    float   position[3];    

    float   minRadius;      
    float   maxRadius;      
};

NVBLAST_API void NvBlastExtImpactSpreadGraphShader(NvBlastFractureBuffers* commandBuffers, const NvBlastGraphShaderActor* actor, const void* params);
NVBLAST_API void NvBlastExtImpactSpreadSubgraphShader(NvBlastFractureBuffers* commandBuffers, const NvBlastSubgraphShaderActor* actor, const void* params);


#endif // NVBLASTEXTDAMAGESHADERS_H