fix:代码提初始化

Assets/Enviro 3 - Sky and Weather/Resources/Shader/Includes/CustomShaderIncludeHDRP.hlsl

@@ -0,0 +1,11 @@
+#include_with_pragmas "FogIncludeHLSL.hlsl"
+#include "Packages/com.unity.render-pipelines.high-definition/Runtime/Sky/SkyUtils.hlsl"
+float _EnviroSkyIntensity;
+
+float3 ApplyFog(float3 sceneColor, float2 uv, float3 wPos, float linearDepth)
+{
+    float4 fog = GetExponentialHeightFog(wPos,linearDepth);
+    fog.rgb *= _EnviroSkyIntensity * GetCurrentExposureMultiplier();
+    return ApplyVolumetricLights(fog,sceneColor,uv);
+}
+