Merge pull request #1514 from Unity-Technologies/lw/bugfixes

Lw/bugfixes

com.unity.render-pipelines.lightweight/CHANGELOG.md

 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Fixed
+- Occlusion strength not being applied on LW standard shaders
+- CopyDepth pass is being called even when a depth from prepass is available
+- GLES2 shader compiler error in IntegrationTests
+- Can't set RenderScale and ShadowDistance by script
 
 ## [2.0.1-preview]
 

com.unity.render-pipelines.lightweight/LWRP/Data/LightweightPipelineAsset.cs

         public float renderScale
         {
             get { return m_RenderScale; }
+            set { m_RenderScale = value; }
         }
 
         public bool supportsDynamicBatching
         public float shadowDistance
         {
             get { return m_ShadowDistance; }
+            set { m_ShadowDistance = value; }
         }
 
         public int cascadeCount

com.unity.render-pipelines.lightweight/LWRP/LightweightForwardRenderer.cs

             bool requiresDepthAttachment = requiresCameraDepth && !requiresDepthPrepass;
             bool requiresColorAttachment = RequiresIntermediateColorTexture(ref renderingData.cameraData, baseDescriptor, requiresDepthAttachment);
             int[] colorHandles = (requiresColorAttachment) ? new[] {RenderTargetHandles.Color} : null;
-            int depthHandle = (requiresColorAttachment) ? RenderTargetHandles.DepthAttachment : -1;
+            int depthHandle = (requiresDepthAttachment) ? RenderTargetHandles.DepthAttachment : -1;
             EnqueuePass(cmd, RenderPassHandles.ForwardLit, baseDescriptor, colorHandles, depthHandle, renderingData.cameraData.msaaSamples);
 
             context.ExecuteCommandBuffer(cmd);

com.unity.render-pipelines.lightweight/LWRP/ShaderLibrary/Input.hlsl

 float4 _ScaledScreenParams;
 CBUFFER_END
 
+#if USE_STRUCTURED_BUFFER_FOR_LIGHT_DATA
+#endif
 
 #define UNITY_MATRIX_M     unity_ObjectToWorld
 #define UNITY_MATRIX_I_M   unity_WorldToObject

com.unity.render-pipelines.lightweight/LWRP/ShaderLibrary/InputSurfacePBR.hlsl

 half SampleOcclusion(float2 uv)
 {
 #ifdef _OCCLUSIONMAP
-#if (SHADER_TARGET < 30)
-    // SM20: instruction count limitation
-    // SM20: simpler occlusion
+// TODO: Controls things like these by exposing SHADER_QUALITY levels (low, medium, high)
+#if defined(SHADER_API_GLES)
     return SAMPLE_TEXTURE2D(_OcclusionMap, sampler_OcclusionMap, uv).g;
 #else
     half occ = SAMPLE_TEXTURE2D(_OcclusionMap, sampler_OcclusionMap, uv).g;

com.unity.render-pipelines.lightweight/LWRP/ShaderLibrary/Lighting.hlsl

 // If lightmap is not defined than we evaluate GI (ambient + probes) from SH
 // We might do it fully or partially in vertex to save shader ALU
 #if !defined(LIGHTMAP_ON)
-    #if defined(SHADER_API_GLES) || (SHADER_TARGET < 30) || !defined(_NORMALMAP)
+// TODO: Controls things like these by exposing SHADER_QUALITY levels (low, medium, high)
+    #if defined(SHADER_API_GLES) || !defined(_NORMALMAP)
         // Evaluates SH fully in vertex
         #define EVALUATE_SH_VERTEX
     #elif !SHADER_HINT_NICE_QUALITY
 
 half ReflectivitySpecular(half3 specular)
 {
-#if (SHADER_TARGET < 30)
-    // SM2.0: instruction count limitation
+#if defined(SHADER_API_GLES)
     return specular.r; // Red channel - because most metals are either monocrhome or with redish/yellowish tint
 #else
     return max(max(specular.r, specular.g), specular.b);