${VFXShaderTags}

${VFXInclude("Shaders/VFXParticleCommon.template")}
${VFXOutputRenderState}

HLSLINCLUDE
${VFXPragmaOnlyRenderers}
${VFXPragmaRequire}
${VFXGlobalInclude}
${VFXGlobalDeclaration}

#define VFX_NEEDS_COLOR_INTERPOLATOR (VFX_USE_COLOR_CURRENT || VFX_USE_ALPHA_CURRENT)
#if HAS_STRIPS
#define VFX_OPTIONAL_INTERPOLATION
#else
#define VFX_OPTIONAL_INTERPOLATION nointerpolation
#endif

#if VFX_USE_INSTANCING
#define VFX_VERTEX_OUTPUT_INSTANCE_INDEX nointerpolation uint2 instanceIndices : INDEX0; //instanceCurrentIndex, instanceActiveIndex
#define VFX_VARYINGS_INSTANCE_CURRENT_INDEX instanceIndices.x
#define VFX_VARYINGS_INSTANCE_ACTIVE_INDEX instanceIndices.y
#ifdef UNITY_INSTANCING_ENABLED
    #define VFX_FRAG_SETUP_INSTANCE_ID(i) unity_InstanceID = i.VFX_VARYINGS_INSTANCE_CURRENT_INDEX
#else
    #define VFX_FRAG_SETUP_INSTANCE_ID(i)
#endif
#else
#define VFX_VERTEX_OUTPUT_INSTANCE_INDEX
#endif

ByteAddressBuffer attributeBuffer;

#if VFX_HAS_INDIRECT_DRAW
StructuredBuffer<uint> indirectBuffer;
#endif

#if USE_DEAD_LIST_COUNT
StructuredBuffer<uint> deadList;
#endif

#if HAS_STRIPS
StructuredBuffer<uint> stripDataBuffer;
#endif

#if VFX_FEATURE_MOTION_VECTORS
ByteAddressBuffer elementToVFXBufferPrevious;

#if defined(VFX_FEATURE_MOTION_VECTORS_VERTS)

#define VFX_DECLARE_MOTION_VECTORS_STORAGE(coordA, coordB)\
noperspective float4 cPosPreviousAndNonJiterred : TEXCOORD##coordA;

#define VFX_DECLARE_MOTION_VECTORS_VARYING_PREVIOUS cPosPreviousAndNonJiterred.xy
#define VFX_DECLARE_MOTION_VECTORS_VARYING_NONJITTER cPosPreviousAndNonJiterred.zw

#else

#define VFX_DECLARE_MOTION_VECTORS_STORAGE(coordA, coordB)\
float4 cPosPrevious : TEXCOORD##coordA;\
float4 cPosNonJiterred : TEXCOORD##coordB;

#define VFX_DECLARE_MOTION_VECTORS_VARYING_PREVIOUS cPosPrevious
#define VFX_DECLARE_MOTION_VECTORS_VARYING_NONJITTER cPosNonJiterred

#endif
#endif

CBUFFER_START(outputParamsConst)
    ${VFXInstancingConstants}
    float3 cameraXRSettings;
CBUFFER_END

UNITY_INSTANCING_BUFFER_START(PerInstance)
    UNITY_DEFINE_INSTANCED_PROP(float, _InstanceIndex)
    UNITY_DEFINE_INSTANCED_PROP(float, _InstanceActiveIndex)
UNITY_INSTANCING_BUFFER_END(PerInstance)

// Helper macros to always use a valid instanceID
#if defined(UNITY_STEREO_INSTANCING_ENABLED)
	#define VFX_DECLARE_INSTANCE_ID     UNITY_VERTEX_INPUT_INSTANCE_ID
	#define VFX_GET_INSTANCE_ID(i)      unity_InstanceID
#else
	#define VFX_DECLARE_INSTANCE_ID     uint instanceID : SV_InstanceID;
	#define VFX_GET_INSTANCE_ID(i)      i.instanceID
#endif

ENDHLSL