Fixed directional shadow for transparent shaders by adding the right defines.

7 年前 · 9e3a6300
--- a/SampleScenes/HDTest/ShadowsTest.unity
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--- a/ScriptableRenderPipeline/HDRenderPipeline/HDRenderPipeline.cs
+++ b/ScriptableRenderPipeline/HDRenderPipeline/HDRenderPipeline.cs
            m_LightLoop.UpdateCullingParameters( ref cullingParams );
          
            // emit scene view UI
+#if UNITY_EDITOR
+#endif

            CullResults.Cull(ref cullingParams, renderContext,ref m_CullResults);

--- a/ScriptableRenderPipeline/HDRenderPipeline/Material/LayeredLit/LayeredLit.shader
+++ b/ScriptableRenderPipeline/HDRenderPipeline/Material/LayeredLit/LayeredLit.shader
    #pragma shader_feature _ _LAYEREDLIT_3_LAYERS _LAYEREDLIT_4_LAYERS
    #pragma shader_feature _VERTEX_WIND

+    #pragma shader_feature _ _BLENDMODE_LERP _BLENDMODE_ADD _BLENDMODE_SOFT_ADD _BLENDMODE_MULTIPLY _BLENDMODE_PRE_MULTIPLY
+
    #pragma multi_compile LIGHTMAP_OFF LIGHTMAP_ON
    #pragma multi_compile DIRLIGHTMAP_OFF DIRLIGHTMAP_COMBINED
    #pragma multi_compile DYNAMICLIGHTMAP_OFF DYNAMICLIGHTMAP_ON
--- a/ScriptableRenderPipeline/HDRenderPipeline/Material/LayeredLit/LayeredLitTessellation.shader
+++ b/ScriptableRenderPipeline/HDRenderPipeline/Material/LayeredLit/LayeredLitTessellation.shader
    #pragma shader_feature _ _LAYEREDLIT_3_LAYERS _LAYEREDLIT_4_LAYERS
    #pragma shader_feature _VERTEX_WIND

+    #pragma shader_feature _ _BLENDMODE_LERP _BLENDMODE_ADD _BLENDMODE_SOFT_ADD _BLENDMODE_MULTIPLY _BLENDMODE_PRE_MULTIPLY
+
    #pragma multi_compile LIGHTMAP_OFF LIGHTMAP_ON
    #pragma multi_compile DIRLIGHTMAP_OFF DIRLIGHTMAP_COMBINED
    #pragma multi_compile DYNAMICLIGHTMAP_OFF DYNAMICLIGHTMAP_ON
--- a/ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/Lit.hlsl
+++ b/ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/Lit.hlsl

    [branch] if (lightData.shadowIndex >= 0)
    {
+#ifdef SURFACE_TYPE_TRANSPARENT
+        shadow = GetDirectionalShadowAttenuation(lightLoopContext.shadowContext, positionWS, bsdfData.normalWS, lightData.shadowIndex, L, posInput.unPositionSS);
+#else
+#endif
        illuminance *= shadow;
    }

--- a/ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/Lit.shader
+++ b/ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/Lit.shader
    #pragma shader_feature _SPECULARCOLORMAP
    #pragma shader_feature _VERTEX_WIND

+    #pragma shader_feature _ _BLENDMODE_LERP _BLENDMODE_ADD _BLENDMODE_SOFT_ADD _BLENDMODE_MULTIPLY _BLENDMODE_PRE_MULTIPLY
+
    // MaterialId are used as shader feature to allow compiler to optimize properly
    // Note _MATID_STANDARD is not define as there is always the default case "_". We assign default as _MATID_STANDARD, so we never test _MATID_STANDARD
    #pragma shader_feature _ _MATID_SSS _MATID_ANISO _MATID_SPECULAR _MATID_CLEARCOAT
--- a/ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/LitTessellation.shader
+++ b/ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/LitTessellation.shader
    #pragma shader_feature _SPECULARCOLORMAP
    #pragma shader_feature _VERTEX_WIND

+    #pragma shader_feature _ _BLENDMODE_LERP _BLENDMODE_ADD _BLENDMODE_SOFT_ADD _BLENDMODE_MULTIPLY _BLENDMODE_PRE_MULTIPLY
+
    // MaterialId are used as shader feature to allow compiler to optimize properly
    // Note _MATID_STANDARD is not define as there is always the default case "_". We assign default as _MATID_STANDARD, so we never test _MATID_STANDARD
    #pragma shader_feature _ _MATID_SSS _MATID_ANISO _MATID_SPECULAR _MATID_CLEARCOAT
--- a/ScriptableRenderPipeline/HDRenderPipeline/Material/Material.hlsl
+++ b/ScriptableRenderPipeline/HDRenderPipeline/Material/Material.hlsl
 #include "../../Core/ShaderLibrary/ImageBasedLighting.hlsl"

 //-----------------------------------------------------------------------------
+// Blending
+//-----------------------------------------------------------------------------
+// This should match the possible blending modes in any material .shader file (lit/layeredlit/unlit etc)
+#if defined(_BLENDMODE_LERP) || defined(_BLENDMODE_ADD) || defined(_BLENDMODE_SOFT_ADD) || defined(_BLENDMODE_MULTIPLY) || defined(_BLENDMODE_PRE_MULTIPLY)
+#   define SURFACE_TYPE_TRANSPARENT
+#else
+#   define SURFACE_TYPE_OPAQUE
+#endif
+
+//-----------------------------------------------------------------------------
 // BuiltinData
 //-----------------------------------------------------------------------------

--- a/ScriptableRenderPipeline/HDRenderPipeline/Material/Unlit/Editor/BaseUnlitUI.cs
+++ b/ScriptableRenderPipeline/HDRenderPipeline/Material/Unlit/Editor/BaseUnlitUI.cs
                material.SetInt("_ZWrite", 0);
                material.renderQueue = (int)UnityEngine.Rendering.RenderQueue.Transparent;

+                SetKeyword(material, "_BLENDMODE_LERP", BlendMode.Lerp == blendMode);
+                SetKeyword(material, "_BLENDMODE_ADD", BlendMode.Add == blendMode);
+                SetKeyword(material, "_BLENDMODE_SOFT_ADD", BlendMode.SoftAdd == blendMode);
+                SetKeyword(material, "_BLENDMODE_MULTIPLY", BlendMode.Multiply == blendMode);
+                SetKeyword(material, "_BLENDMODE_PRE_MULTIPLY", BlendMode.Premultiply == blendMode);
+
                switch (blendMode)
                {
                    case BlendMode.Lerp:
--- a/ScriptableRenderPipeline/HDRenderPipeline/Material/Unlit/Unlit.shader
+++ b/ScriptableRenderPipeline/HDRenderPipeline/Material/Unlit/Unlit.shader

    #pragma shader_feature _EMISSIVE_COLOR_MAP

+    #pragma shader_feature _ _BLENDMODE_LERP _BLENDMODE_ADD _BLENDMODE_SOFT_ADD _BLENDMODE_MULTIPLY _BLENDMODE_PRE_MULTIPLY
+
    //-------------------------------------------------------------------------------------
    // Define
    //-------------------------------------------------------------------------------------
--- a/SampleScenes/HDTest/Material/HDRenderLoopMaterials/Grid_Red_Transparent_Planar.mat
+++ b/SampleScenes/HDTest/Material/HDRenderLoopMaterials/Grid_Red_Transparent_Planar.mat
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--- a/SampleScenes/HDTest/Material/HDRenderLoopMaterials/Grid_Red_Transparent_Planar.mat.meta
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