Internal/master

Packages/com.unity.render-pipelines.core/Documentation~/Examples/Blit.shader

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+Shader "Hidden/Universal/CoreBlit"
+{
+    HLSLINCLUDE
+        #pragma target 2.0
+        #pragma editor_sync_compilation
+        // Core.hlsl for XR dependencies
+        #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
+        #include "Packages/com.unity.render-pipelines.core/Runtime/Utilities/Blit.hlsl"
+        // DebuggingFullscreen.hlsl for URP debug draw
+        #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Debug/DebuggingFullscreen.hlsl"
+        // Color.hlsl for color space conversion
+        #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl"
+
+        // Specialized blit with URP debug draw support and color space conversion support
+        half4 FragmentURPBlit(Varyings input, SamplerState blitsampler)
+        {
+            half4 color = FragBlit(input, blitsampler);
+
+            #ifdef _LINEAR_TO_SRGB_CONVERSION
+            color = LinearToSRGB(color);
+            #endif
+
+            #if defined(DEBUG_DISPLAY)
+            half4 debugColor = 0;
+            float2 uv = input.texcoord;
+            if (CanDebugOverrideOutputColor(color, uv, debugColor))
+            {
+                return debugColor;
+            }
+            #endif
+
+            return color;
+        }
+    ENDHLSL
+
+    SubShader
+    {
+        Tags{ "RenderPipeline" = "UniversalPipeline" }
+
+        // 0: Nearest
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "Nearest"
+
+            HLSLPROGRAM
+                #pragma vertex Vert
+                #pragma fragment FragNearest
+            ENDHLSL
+        }
+
+        // 1: Bilinear
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "Bilinear"
+
+            HLSLPROGRAM
+                #pragma vertex Vert
+                #pragma fragment FragBilinear
+            ENDHLSL
+        }
+
+        // 2: Nearest quad
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "NearestQuad"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuad
+                #pragma fragment FragNearest
+            ENDHLSL
+        }
+
+        // 3: Bilinear quad
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "BilinearQuad"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuad
+                #pragma fragment FragBilinear
+            ENDHLSL
+        }
+
+        // 4: Nearest quad with padding
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "NearestQuadPadding"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuadPadding
+                #pragma fragment FragNearest
+            ENDHLSL
+        }
+
+        // 5: Bilinear quad with padding
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "BilinearQuadPadding"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuadPadding
+                #pragma fragment FragBilinear
+            ENDHLSL
+        }
+
+        // 6: Nearest quad with padding and repeat
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "NearestQuadPaddingRepeat"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuadPadding
+                #pragma fragment FragNearestRepeat
+            ENDHLSL
+        }
+
+        // 7: Bilinear quad with padding and repeat
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "BilinearQuadPaddingRepeat"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuadPadding
+                #pragma fragment FragBilinearRepeat
+            ENDHLSL
+        }
+
+        // 8: Bilinear quad with padding (for OctahedralTexture)
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "BilinearQuadPaddingOctahedral"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuadPadding
+                #pragma fragment FragOctahedralBilinearRepeat
+            ENDHLSL
+        }
+
+        /// Version 4, 5, 6, 7 with Alpha Blending 0.5
+        // 9: Nearest quad with padding alpha blend (4 with alpha blend)
+        Pass
+        {
+            ZWrite Off ZTest Always Blend DstColor Zero Cull Off
+            Name "NearestQuadPaddingAlphaBlend"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuadPadding
+                #pragma fragment FragNearest
+                #define WITH_ALPHA_BLEND
+            ENDHLSL
+        }
+
+        // 10: Bilinear quad with padding alpha blend (5 with alpha blend)
+        Pass
+        {
+            ZWrite Off ZTest Always Blend DstColor Zero Cull Off
+            Name "BilinearQuadPaddingAlphaBlend"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuadPadding
+                #pragma fragment FragBilinear
+                #define WITH_ALPHA_BLEND
+            ENDHLSL
+        }
+
+        // 11: Nearest quad with padding alpha blend repeat (6 with alpha blend)
+        Pass
+        {
+            ZWrite Off ZTest Always Blend DstColor Zero Cull Off
+            Name "NearestQuadPaddingAlphaBlendRepeat"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuadPadding
+                #pragma fragment FragNearestRepeat
+                #define WITH_ALPHA_BLEND
+            ENDHLSL
+        }
+
+        // 12: Bilinear quad with padding alpha blend repeat (7 with alpha blend)
+        Pass
+        {
+            ZWrite Off ZTest Always Blend DstColor Zero Cull Off
+            Name "BilinearQuadPaddingAlphaBlendRepeat"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuadPadding
+                #pragma fragment FragBilinearRepeat
+                #define WITH_ALPHA_BLEND
+            ENDHLSL
+        }
+
+        // 13: Bilinear quad with padding alpha blend (for OctahedralTexture) (8 with alpha blend)
+        Pass
+        {
+            ZWrite Off ZTest Always Blend DstColor Zero Cull Off
+            Name "BilinearQuadPaddingAlphaBlendOctahedral"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuadPadding
+                #pragma fragment FragOctahedralBilinearRepeat
+                #define WITH_ALPHA_BLEND
+            ENDHLSL
+        }
+
+        // 14. Project Cube to Octahedral 2d quad
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "CubeToOctahedral"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuad
+                #pragma fragment FragOctahedralProject
+            ENDHLSL
+        }
+
+        // 15. Project Cube to Octahedral 2d quad with luminance (grayscale), RGBA to YYYY
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "CubeToOctahedralLuminance"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuad
+                #pragma fragment FragOctahedralProjectLuminance
+            ENDHLSL
+        }
+
+        // 16. Project Cube to Octahedral 2d quad with with A to RGBA (AAAA)
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "CubeToOctahedralAlpha"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuad
+                #pragma fragment FragOctahedralProjectAlphaToRGBA
+            ENDHLSL
+        }
+
+        // 17. Project Cube to Octahedral 2d quad with with R to RGBA (RRRR)
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "CubeToOctahedralRed"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuad
+                #pragma fragment FragOctahedralProjectRedToRGBA
+            ENDHLSL
+        }
+
+        // 18. Bilinear quad with luminance (grayscale), RGBA to YYYY
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "BilinearQuadLuminance"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuad
+                #pragma fragment FragBilinearLuminance
+            ENDHLSL
+        }
+
+        // 19. Bilinear quad with A to RGBA (AAAA)
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "BilinearQuadAlpha"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuad
+                #pragma fragment FragBilinearAlphaToRGBA
+            ENDHLSL
+        }
+
+        // 20. Bilinear quad with R to RGBA (RRRR)
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "BilinearQuadRed"
+
+            HLSLPROGRAM
+                #pragma vertex VertQuad
+                #pragma fragment FragBilinearRedToRGBA
+            ENDHLSL
+        }
+
+        // 21. Nearest project cube to octahedral 2d quad with padding
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "NearestCubeToOctahedralPadding"
+
+            HLSLPROGRAM
+                #pragma multi_compile_local _ BLIT_DECODE_HDR
+                #pragma vertex VertQuadPadding
+                #pragma fragment FragOctahedralProjectNearestRepeat
+            ENDHLSL
+        }
+
+        // 22. Bilinear project cube to octahedral 2d quad with padding
+        Pass
+        {
+            ZWrite Off ZTest Always Blend Off Cull Off
+            Name "BilinearCubeToOctahedralPadding"
+
+            HLSLPROGRAM
+                #pragma multi_compile_local _ BLIT_DECODE_HDR
+                #pragma vertex VertQuadPadding
+                #pragma fragment FragOctahedralProjectBilinearRepeat
+            ENDHLSL
+        }
+
+        // 23: Bilinear blit with debug draw and color space conversion support
+        Pass
+        {
+            Name "BilinearDebugDraw"
+            ZWrite Off ZTest Always Blend Off Cull Off
+
+            HLSLPROGRAM
+            #pragma vertex Vert
+            #pragma fragment FragmentURPBlitBilinearSampler
+            #pragma multi_compile_fragment _ _LINEAR_TO_SRGB_CONVERSION
+            #pragma multi_compile_fragment _ DEBUG_DISPLAY
+
+            half4 FragmentURPBlitBilinearSampler(Varyings input) : SV_Target
+            {
+                return FragmentURPBlit(input, sampler_LinearClamp);
+            }
+            ENDHLSL
+        }
+
+        // 24: Nearest blit with debug draw and color space conversion support
+        Pass
+        {
+            Name "NearestDebugDraw"
+            ZWrite Off ZTest Always Blend Off Cull Off
+
+            HLSLPROGRAM
+            #pragma vertex Vert
+            #pragma fragment FragmentURPBlitPointSampler
+            #pragma multi_compile_fragment _ _LINEAR_TO_SRGB_CONVERSION
+            #pragma multi_compile_fragment _ DEBUG_DISPLAY
+
+            half4 FragmentURPBlitPointSampler(Varyings input) : SV_Target
+            {
+                return FragmentURPBlit(input, sampler_PointClamp);
+            }
+            ENDHLSL
+        }
+    }
+
+    Fallback Off
+}