fixes #746 - added uv-starts-at-top check - based on unity docs

KhronosGroup · Jul 11, 2024 · 6d8ff3e · 6d8ff3e
1 parent 66f72b1
commit 6d8ff3e
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/Runtime/Shaders/ShaderGraph/PBRHelpers.cginc b/Runtime/Shaders/ShaderGraph/PBRHelpers.cginc
@@ -51,6 +51,11 @@ float3 Sample4Tap(float2 uv, float lod)
 
 void SampleSceneColor_float(float2 uv, float lod, out float3 color)
 {
+	#if !UNITY_UV_STARTS_AT_TOP
+	if (_CameraOpaqueTexture_TexelSize.y > 0)
+		uv.y = 1-uv.y;
+	#endif
+
 	#define REQUIRE_OPAQUE_TEXTURE // seems we need to define this ourselves? HDSceneColorNode does that as well
 
 #if defined(USE_CAMERA_OPAQUE)