Reverting PR #148 (#336)

Author: ellioman

com.unity.render-pipelines.universal/Shaders/Nature/SpeedTree7BillboardPasses.hlsl

@@ -32,10 +32,7 @@ void InitializeData(inout SpeedTreeVertexInput input, out half2 outUV, out half
 #ifdef ENABLE_WIND
     if (_WindQuality * _WindEnabled > 0)
     {
-        // Disabling "pow(f,e) will not work for negative f"; warnings.
-        #pragma warning (disable : 3571)
         billboardPos = GlobalWind(billboardPos, worldPos, true, _ST_WindVector.xyz, input.texcoord1.w);
-        #pragma warning (enable : 3571)
     }
 #endif
 

com.unity.render-pipelines.universal/Shaders/Nature/SpeedTree7Passes.hlsl

@@ -90,10 +90,7 @@ void InitializeData(inout SpeedTreeVertexInput input, float lodValue)
         // global wind
         if (windQuality > WIND_QUALITY_NONE)
         {
-            // Disabling "pow(f,e) will not work for negative f"; warnings.
-            #pragma warning (disable : 3571)
             finalPosition = GlobalWind(finalPosition, treePos, true, rotatedWindVector, _ST_WindGlobal.x);
-            #pragma warning (enable : 3571)
         }
     #endif
 

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

@@ -147,11 +147,7 @@ void InitializeData(inout SpeedTreeVertexInput input, float lodValue)
                 globalWindTime += UNITY_ACCESS_INSTANCED_PROP(STWind, _GlobalWindTime);
             #endif
 
-            // Disabling "pow(f,e) will not work for negative f"; warnings.
-            #pragma warning (disable : 3571)
             windyPosition = GlobalWind(windyPosition, treePos, true, rotatedWindVector, globalWindTime);
-            #pragma warning (enable : 3571)
-
             input.vertex.xyz = windyPosition;
         }
     #endif