UnityCACAO-HDRP17/com.unity.render-pipelines.high-definition/Editor/VFXGraph/Shaders/VFXPasses.template

${VFXBegin:VFXPassDepth}"DepthForwardOnly"${VFXEnd}
${VFXBegin:VFXPassForward}"ForwardOnly"${VFXEnd}
${VFXBegin:VFXPassShadow}"ShadowCaster"${VFXEnd}
${VFXBegin:VFXPassVelocity}"MotionVectors"${VFXEnd}

${VFXBegin:VFXPassDepthDefine}
#define SHADERPASS SHADERPASS_DEPTH_ONLY

#if VFX_PASSDEPTH == VFX_PASSDEPTH_SELECTION
#define SCENESELECTIONPASS
#elif VFX_PASSDEPTH == VFX_PASSDEPTH_PICKING
#define SCENEPICKINGPASS
#endif

${VFXEnd}

${VFXBegin:VFXPassForwardDefine}#define SHADERPASS SHADERPASS_FORWARD_UNLIT${VFXEnd}
${VFXBegin:VFXPassShadowDefine}#define SHADERPASS SHADERPASS_SHADOWS${VFXEnd}
${VFXBegin:VFXPassVelocityDefine}#define SHADERPASS SHADERPASS_MOTION_VECTORS${VFXEnd}

${VFXBegin:VFXPassDepthAdditionalPragma}#pragma multi_compile _ WRITE_MSAA_DEPTH${VFXEnd}
${VFXBegin:VFXPassForwardAdditionalPragma}#pragma multi_compile _ DEBUG_DISPLAY${VFXEnd}
${VFXBegin:VFXPassVelocityAdditionalPragma}#pragma multi_compile _ WRITE_MSAA_DEPTH${VFXEnd}

${VFXBegin:VFXShaderGraphFunctionsInclude}
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Common.hlsl"
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Texture.hlsl"
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Packing.hlsl"
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl"
#include "Packages/com.unity.render-pipelines.core/ShaderLibrary/EntityLighting.hlsl"
#include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/BuiltinGIUtilities.hlsl"
#ifndef SHADERPASS
#error Shaderpass should be defined at this stage.
#endif
#include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderGraphFunctions.hlsl"
${VFXEnd}

${VFXBegin:VFXPassDepthCommonFragmentLit}
#if VFX_PASSDEPTH == VFX_PASSDEPTH_MOTION_VECTOR
${VFXPassVelocityDefine}
#elif VFX_PASSDEPTH == VFX_PASSDEPTH_SHADOW
${VFXPassShadowDefine}
#else
${VFXPassDepthDefine}
#endif
${VFXIncludeRP("VFXLit.template")}

${SHADERGRAPH_PIXEL_CODE_DEPTHONLY}

#if VFX_PASSDEPTH == VFX_PASSDEPTH_SELECTION
int _ObjectId;
int _PassValue;
#elif VFX_PASSDEPTH == VFX_PASSDEPTH_PICKING
float4 _SelectionID;
#endif

#pragma fragment frag
void frag(ps_input i
#if USE_DOUBLE_SIDED
	, bool frontFace : SV_IsFrontFace
#endif
#if VFX_PASSDEPTH == VFX_PASSDEPTH_MOTION_VECTOR
	#ifdef WRITE_MSAA_DEPTH
	// We need the depth color as SV_Target0 for alpha to coverage
	, out float4 outDepthColor : SV_Target0
	, out float4 outMotionVector : SV_Target1
		#ifdef WRITE_NORMAL_BUFFER
		, out float4 outNormalBuffer : SV_Target2
		#endif
	#else
	// When no MSAA, the motion vector is always the first buffer
	, out float4 outMotionVector : SV_Target0
		#ifdef WRITE_NORMAL_BUFFER
		, out float4 outNormalBuffer : SV_Target1
		#endif
	#endif
#elif VFX_PASSDEPTH == VFX_PASSDEPTH_ACTUAL
	#ifdef WRITE_MSAA_DEPTH
	// We need the depth color as SV_Target0 for alpha to coverage
	, out float4 outDepthColor : SV_Target0
		#ifdef WRITE_NORMAL_BUFFER
		, out float4 outNormalBuffer : SV_Target1
		#endif
	#elif defined(WRITE_NORMAL_BUFFER)
	, out float4 outNormalBuffer : SV_Target0
	#endif
#elif VFX_PASSDEPTH == VFX_PASSDEPTH_SELECTION || VFX_PASSDEPTH == VFX_PASSDEPTH_PICKING
    , out float4 outColor : SV_Target0
#endif
)
{
	UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);
	VFXTransformPSInputs(i);
	${VFXComputeNormalWS}

	#ifdef VFX_SHADERGRAPH
        ${VFXAdditionalInterpolantsPreparation}
        ${SHADERGRAPH_PIXEL_CALL_DEPTHONLY}
        float alpha = OUTSG.${SHADERGRAPH_PARAM_ALPHA};
    #else

	float alpha = VFXGetFragmentColor(i).a;

	#if HDRP_USE_BASE_COLOR_MAP_ALPHA
		alpha *= VFXGetTextureColor(VFX_SAMPLER(baseColorMap),i).a;
	#endif
    #if VFX_MATERIAL_TYPE_SIX_WAY_SMOKE
        #ifndef VFX_VARYING_NORMAL
			const VFXUVData uvData = GetUVData(i);
		#endif
        alpha *= SampleTexture(VFX_SAMPLER(positiveAxesLightmap),uvData).a;
         #if VFX_SIX_WAY_USE_ALPHA_REMAP
            alpha = SampleCurve(i.VFX_VARYING_ALPHA_REMAP, alpha);
         #endif
    #endif
    #endif
	VFXClipFragmentColor(alpha,i);

	#ifdef WRITE_NORMAL_BUFFER
        #ifndef VFX_SHADERGRAPH
            VFXComputePixelOutputToNormalBuffer(i,normalWS,uvData,outNormalBuffer);
        #else
           #if HAS_SHADERGRAPH_PARAM_NORMAL
               float3 n =  OUTSG.Normal_8;
               normalWS = mul(n,tbn);
           #endif
           SurfaceData surface = (SurfaceData)0;
           surface.normalWS = normalWS;
           EncodeIntoNormalBuffer(ConvertSurfaceDataToNormalData(surface), outNormalBuffer);
        #endif
	#endif

	#ifdef WRITE_MSAA_DEPTH
		outDepthColor = i.VFX_VARYING_POSCS.z;
		#if VFX_USE_ALPHA_TO_MASK
			outDepthColor.a = alpha;
		#endif
	#endif

	#if VFX_PASSDEPTH == VFX_PASSDEPTH_MOTION_VECTOR
		${VFXComputeOutputMotionVector}
		outMotionVector = encodedMotionVector;
	#elif VFX_PASSDEPTH == VFX_PASSDEPTH_SELECTION
		// We use depth prepass for scene selection in the editor, this code allow to output the outline correctly
		outColor = float4(_ObjectId, _PassValue, 1.0, 1.0);
	#elif VFX_PASSDEPTH == VFX_PASSDEPTH_PICKING
		outColor = _SelectionID;
	#elif VFX_PASSDEPTH == VFX_PASSDEPTH_ACTUAL
		//void
	#elif VFX_PASSDEPTH == VFX_PASSDEPTH_SHADOW
		//void
	#else
		#error VFX_PASSDEPTH undefined
	#endif
}
${VFXEnd}

${VFXBegin:VFXPassFullScreenDebugCommonVertex}
#if !defined(SHADER_API_METAL)
    if (_DebugFullScreenMode == FULLSCREENDEBUGMODE_VERTEX_DENSITY)
        IncrementVertexDensityCounter(o.VFX_VARYING_POSCS);
#endif
${VFXEnd}

${VFXBegin:VFXPassFullScreenDebugCommonFragment}
    #pragma fragment frag
    [earlydepthstencil]
    void frag(ps_input i
#if defined(PLATFORM_SUPPORTS_PRIMITIVE_ID_IN_PIXEL_SHADER)
            , uint primitiveId : SV_PrimitiveID
#endif
    )
    {
        UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);
        VFXTransformPSInputs(i);
        VFX_FRAG_SETUP_INSTANCE_ID(i);
        
#ifdef PLATFORM_SUPPORTS_PRIMITIVE_ID_IN_PIXEL_SHADER
        if (_DebugFullScreenMode == FULLSCREENDEBUGMODE_QUAD_OVERDRAW)
        {
           IncrementQuadOverdrawCounter((uint2)i.VFX_VARYING_POSCS.xy, primitiveId);
        }
#endif
    }
${VFXEnd}