Replaced explicit render texture creation mode with RenderTextureDescriptor

ScriptableRenderPipeline/LightweightPipeline/LightweightPipeline.cs

 
             if (m_RequiredDepth)
             {
-                cmd.GetTemporaryRT(CameraRenderTargetID.depth, rtWidth, rtHeight, kCameraDepthBufferBits, FilterMode.Bilinear, RenderTextureFormat.Depth);
+                RenderTextureDescriptor depthRTDesc = new RenderTextureDescriptor(rtWidth, rtHeight, RenderTextureFormat.Depth, kCameraDepthBufferBits);
+                cmd.GetTemporaryRT(CameraRenderTargetID.depth, depthRTDesc, FilterMode.Bilinear);
-                    cmd.GetTemporaryRT(CameraRenderTargetID.depthCopy, rtWidth, rtHeight, kCameraDepthBufferBits, FilterMode.Bilinear, RenderTextureFormat.Depth);
+                    cmd.GetTemporaryRT(CameraRenderTargetID.depthCopy, depthRTDesc, FilterMode.Bilinear);
+
+            RenderTextureDescriptor colorRTDesc = new RenderTextureDescriptor(rtWidth, rtHeight, m_ColorFormat, kCameraDepthBufferBits);
+            colorRTDesc.msaaSamples = msaaSamples;
+            colorRTDesc.enableRandomWrite = false;
-                cmd.GetTemporaryRT(CameraRenderTargetID.color, rtWidth, rtHeight, kCameraDepthBufferBits,
-                    FilterMode.Bilinear, m_ColorFormat, RenderTextureReadWrite.Default, msaaSamples);
+                cmd.GetTemporaryRT(CameraRenderTargetID.color, colorRTDesc, FilterMode.Bilinear);
                 m_CurrCameraColorRT = m_ColorRT;
             }
 
             if (LightweightUtils.HasFlag(renderingConfig, FrameRenderingConfiguration.BeforeTransparentPostProcess))
-            {
-                cmd.GetTemporaryRT(CameraRenderTargetID.copyColor, rtWidth, rtHeight, kCameraDepthBufferBits,
-                    FilterMode.Bilinear, m_ColorFormat, RenderTextureReadWrite.Default, msaaSamples);
-            }
+                cmd.GetTemporaryRT(CameraRenderTargetID.copyColor, colorRTDesc, FilterMode.Point);
         }
 
         private void SetupIntermediateResourcesStereo(CommandBuffer cmd, int msaaSamples)
             }
 
 
-            if (ForceClear()) 
+            if (ForceClear())
-            } 
+            }
             else
             {
                 ClearFlag clearFlag = ClearFlag.None;
 
         private void SetRenderTarget(CommandBuffer cmd, RenderTargetIdentifier colorRT, RenderTargetIdentifier depthRT, ClearFlag clearFlag = ClearFlag.None)
         {
-            if (depthRT == BuiltinRenderTextureType.None) 
+            if (depthRT == BuiltinRenderTextureType.None)
             {
                 SetRenderTarget (cmd, colorRT, clearFlag);
                 return;