GC fix (96B)

ScriptableRenderPipeline/HDRenderPipeline/HDRenderPipeline.cs

         RenderTargetIdentifier m_CameraStencilBufferCopyRT;
         RenderTargetIdentifier m_HTileRT;
 
+        // The pass "SRPDefaultUnlit" is a fallback to legacy unlit rendering and is required to support unity 2d + unity UI that render in the scene.
+        ShaderPassName[] m_ForwardPassNames = { new ShaderPassName(), HDShaderPassNames.s_SRPDefaultUnlitName};
+
         // Post-processing context and screen-space effects (recycled on every frame to avoid GC alloc)
         readonly PostProcessRenderContext m_PostProcessContext;
         readonly ScreenSpaceAmbientOcclusionEffect m_SsaoEffect;
 
                 m_LightLoop.RenderForward(camera, cmd, renderOpaque);
 
-                // The pass "SRPDefaultUnlit" is a fallback to legacy unlit rendering and is required to support unity 2d + unity UI that render in the scene.
-                var arrayNames = new [] { passName, HDShaderPassNames.s_SRPDefaultUnlitName};
+                m_ForwardPassNames[0] = passName;
-                    RenderOpaqueRenderList(cullResults, camera, renderContext, cmd, arrayNames, HDUtils.k_RendererConfigurationBakedLighting, null, m_DepthStateOpaqueWithPrepass);
+                    RenderOpaqueRenderList(cullResults, camera, renderContext, cmd, m_ForwardPassNames, HDUtils.k_RendererConfigurationBakedLighting, null, m_DepthStateOpaqueWithPrepass);
-                    RenderTransparentRenderList(cullResults, camera, renderContext, cmd, arrayNames, HDUtils.k_RendererConfigurationBakedLighting);
+                    RenderTransparentRenderList(cullResults, camera, renderContext, cmd, m_ForwardPassNames, HDUtils.k_RendererConfigurationBakedLighting);
                 }
             }
         }