Graphics/urp/bugfix/uum 77906

Fixes SpeeTree8 shader. Broken vertex shader and camera facing leaves.

Author: eh-unity

Packages/com.unity.render-pipelines.universal/Shaders/Nature/SpeedTree8.shader

@@ -77,9 +77,9 @@ Shader "Universal Render Pipeline/Nature/SpeedTree8"
 
             #pragma shader_feature_local_vertex _WINDQUALITY_NONE _WINDQUALITY_FAST _WINDQUALITY_BETTER _WINDQUALITY_BEST _WINDQUALITY_PALM
             #pragma shader_feature_local EFFECT_BILLBOARD
+            #pragma shader_feature_local EFFECT_BUMP
             #pragma shader_feature_local_fragment EFFECT_HUE_VARIATION
             #pragma shader_feature_local_fragment EFFECT_SUBSURFACE
-            #pragma shader_feature_local_fragment EFFECT_BUMP
             #pragma shader_feature_local_fragment EFFECT_EXTRA_TEX
 
             #define ENABLE_WIND
@@ -152,9 +152,9 @@ Shader "Universal Render Pipeline/Nature/SpeedTree8"
 
             #pragma shader_feature_local_vertex _WINDQUALITY_NONE _WINDQUALITY_FAST _WINDQUALITY_BETTER _WINDQUALITY_BEST _WINDQUALITY_PALM
             #pragma shader_feature_local EFFECT_BILLBOARD
+            #pragma shader_feature_local EFFECT_BUMP
             #pragma shader_feature_local_fragment EFFECT_HUE_VARIATION
             #pragma shader_feature_local_fragment EFFECT_SUBSURFACE
-            #pragma shader_feature_local_fragment EFFECT_BUMP
             #pragma shader_feature_local_fragment EFFECT_EXTRA_TEX
 
             #define ENABLE_WIND
@@ -184,7 +184,7 @@ Shader "Universal Render Pipeline/Nature/SpeedTree8"
             #pragma multi_compile_instancing
             #pragma instancing_options assumeuniformscaling maxcount:50
 
-            #pragma shader_feature_local_vertex _WINDQUALITY_NONE _WINDQUALITY_FAST _WINDQUALITY_BETTER _WINDQUALITY_BEST _WINDQUALITY_PALMlity and backface normal mode enum keywords)
+            #pragma shader_feature_local_vertex _WINDQUALITY_NONE _WINDQUALITY_FAST _WINDQUALITY_BETTER _WINDQUALITY_BEST _WINDQUALITY_PALM
             #pragma shader_feature_local EFFECT_BILLBOARD
 
             #define ENABLE_WIND
@@ -245,7 +245,7 @@ Shader "Universal Render Pipeline/Nature/SpeedTree8"
             #pragma fragment SpeedTree8FragDepthNormal
 
             #pragma shader_feature_local_vertex _WINDQUALITY_NONE _WINDQUALITY_FAST _WINDQUALITY_BETTER _WINDQUALITY_BEST _WINDQUALITY_PALM
-            #pragma shader_feature_local_fragment EFFECT_BUMP
+            #pragma shader_feature_local EFFECT_BUMP
 
             #pragma multi_compile _ LOD_FADE_CROSSFADE
             #pragma multi_compile_instancing

Packages/com.unity.render-pipelines.universal/Shaders/Nature/SpeedTree8Passes.hlsl

@@ -97,8 +97,26 @@ struct SpeedTreeFragmentInput
 
 void InitializeData(inout SpeedTreeVertexInput input, float lodValue)
 {
-#if defined(LOD_FADE_PERCENTAGE) && (!defined(LOD_FADE_CROSSFADE) && !defined(EFFECT_BILLBOARD))
-        input.vertex.xyz = lerp(input.vertex.xyz, input.texcoord2.xyz, lodValue);
+#if !defined(EFFECT_BILLBOARD)
+    #if defined(LOD_FADE_PERCENTAGE) && (!defined(LOD_FADE_CROSSFADE))
+    input.vertex.xyz = lerp(input.vertex.xyz, input.texcoord2.xyz, lodValue);
+    #endif
+
+    // geometry type
+    float geometryType = (int) (input.texcoord3.w + 0.25);
+    bool leafTwo = false;
+    if (geometryType > GEOM_TYPE_FACINGLEAF)
+    {
+        geometryType -= 2;
+        leafTwo = true;
+    }
+
+    // leaf facing
+    if (geometryType == GEOM_TYPE_FACINGLEAF)
+    {
+        float3 anchor = float3(input.texcoord1.zw, input.texcoord2.w);
+        input.vertex.xyz = DoLeafFacing(input.vertex.xyz, anchor);
+    }
 #endif
 
     // wind
@@ -118,30 +136,14 @@ void InitializeData(inout SpeedTreeVertexInput input, float lodValue)
             float3 windyPosition = input.vertex.xyz;
 
             #ifndef EFFECT_BILLBOARD
-                // geometry type
-                float geometryType = (int)(input.texcoord3.w + 0.25);
-                bool leafTwo = false;
-                if (geometryType > GEOM_TYPE_FACINGLEAF)
-                {
-                    geometryType -= 2;
-                    leafTwo = true;
-                }
 
                 // leaves
                 if (geometryType > GEOM_TYPE_FROND)
                 {
                     // remove anchor position
                     float3 anchor = float3(input.texcoord1.zw, input.texcoord2.w);
                     windyPosition -= anchor;
-
-                    if (geometryType == GEOM_TYPE_FACINGLEAF)
-                    {
-                        // face camera-facing leaf to camera
-                        float offsetLen = length(windyPosition);
-                        windyPosition = mul(windyPosition.xyz, (float3x3)UNITY_MATRIX_IT_MV); // inv(MV) * windyPosition
-                        windyPosition = normalize(windyPosition) * offsetLen; // make sure the offset vector is still scaled
-                    }
-
+                    
                     // leaf wind
                     #if defined(_WINDQUALITY_FAST) || defined(_WINDQUALITY_BETTER) || defined(_WINDQUALITY_BEST)
                         #ifdef _WINDQUALITY_BEST

Tests/SRPTests/Projects/UniversalGraphicsTest_Terrain/Assets/Scenes/060_SpeedTree_LeafFacing.unity

@@ -630,7 +630,7 @@ GameObject:
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
   m_StaticEditorFlags: 0
-  m_IsActive: 0
+  m_IsActive: 1
 --- !u!4 &581908187
 Transform:
   m_ObjectHideFlags: 0
@@ -722,7 +722,7 @@ Camera:
   m_TargetDisplay: 0
   m_TargetEye: 3
   m_HDR: 1
-  m_AllowMSAA: 1
+  m_AllowMSAA: 0
   m_AllowDynamicResolution: 0
   m_ForceIntoRT: 0
   m_OcclusionCulling: 1
@@ -803,11 +803,11 @@ MonoBehaviour:
     TargetWidth: 960
     TargetHeight: 540
     TargetMSAASamples: 4
-    PerPixelCorrectnessThreshold: 0.001
+    PerPixelCorrectnessThreshold: 0
     PerPixelGammaThreshold: 0.003921569
     PerPixelAlphaThreshold: 0.003921569
     RMSEThreshold: 0
-    AverageCorrectnessThreshold: 0.0001
+    AverageCorrectnessThreshold: 0.001
     IncorrectPixelsThreshold: 0.0000038146973
     UseHDR: 0
     UseBackBuffer: 0