fixed GLES2 compilation error (#5341)

phi-lira · sebastienlagarde · commit de710d18a4ef · 2019-12-13T15:56:11.000+01:00
* fixed GLES2 compilation error

* Added changelog
diff --git a/com.unity.render-pipelines.core/CHANGELOG.md b/com.unity.render-pipelines.core/CHANGELOG.md
@@ -24,6 +24,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fix LookDev minimal window size.
 - Fix object rotation at instentiation to keep the one in prefab or used in hierarchy.
 - Fixed shader compile errors when trying to use tessellation shaders with PlayStation VR on PS4.
+- Fixed shader compile errors about LODDitheringTransition not being supported in GLES2.
 
 ## [7.1.1] - 2019-09-05
 
diff --git a/com.unity.render-pipelines.core/ShaderLibrary/CommonDeprecated.hlsl b/com.unity.render-pipelines.core/ShaderLibrary/CommonDeprecated.hlsl
@@ -3,7 +3,7 @@
 
 // Function that are in this file shouldn't be use. they are obsolete and could be removed in the future
 // they are here to keep compatibility with previous version
-
+#if !defined(SHADER_API_GLES)
 // Please use void LODDitheringTransition(uint2 fadeMaskSeed, float ditherFactor)
 void LODDitheringTransition(uint3 fadeMaskSeed, float ditherFactor)
 {
@@ -13,5 +13,6 @@ void LODDitheringTransition(uint3 fadeMaskSeed, float ditherFactor)
     p = (ditherFactor >= 0.5) ? p : 1 - p;
     clip(ditherFactor - p);
 }
+#endif
 
 #endif

Original file line number	Diff line number	Diff line change
`@@ -3,7 +3,7 @@`
`3`	`3`
`4`	`4`	`// Function that are in this file shouldn't be use. they are obsolete and could be removed in the future`
`5`	`5`	`// they are here to keep compatibility with previous version`
`6`		`-`
	`6`	`+#if !defined(SHADER_API_GLES)`
`7`	`7`	`// Please use void LODDitheringTransition(uint2 fadeMaskSeed, float ditherFactor)`
`8`	`8`	`void LODDitheringTransition(uint3 fadeMaskSeed, float ditherFactor)`
`9`	`9`	`{`
`@@ -13,5 +13,6 @@ void LODDitheringTransition(uint3 fadeMaskSeed, float ditherFactor)`
`13`	`13`	`p = (ditherFactor >= 0.5) ? p : 1 - p;`
`14`	`14`	`clip(ditherFactor - p);`
`15`	`15`	`}`
	`16`	`+#endif`
`16`	`17`
`17`	`18`	`#endif`