Add VT frame settings

com.unity.render-pipelines.high-definition/CHANGELOG.md

@@ -65,6 +65,7 @@ The version number for this package has increased due to a version update of a r
 - Adding missing marker for ray tracing profiling (RaytracingDeferredLighting)
 - Added the support of eye shader for ray tracing.
 - Exposed Refraction Model to the material UI when using a Lit ShaderGraph.
+- Added frame setting for Virtual Texturing. 
 
 ### Fixed
 - Fixed several issues with physically-based DoF (TAA ghosting of the CoC buffer, smooth layer transitions, etc)

com.unity.render-pipelines.high-definition/Editor/RenderPipeline/Settings/FrameSettingsUI.Drawers.cs

@@ -236,6 +236,9 @@ static void Drawer_SectionRenderingSettings(SerializedFrameSettings serialized,
                 });
 
             area.AmmendInfo(FrameSettingsField.RayTracing, overrideable: () => hdrpSettings.supportRayTracing);
+#if !ENABLE_VIRTUALTEXTURES
+            area.AmmendInfo(FrameSettingsField.VirtualTexturing, overrideable: () => false);
+#endif
             area.AmmendInfo(FrameSettingsField.MotionVectors, overrideable: () => hdrpSettings.supportMotionVectors);
             area.AmmendInfo(FrameSettingsField.ObjectMotionVectors, overrideable: () => hdrpSettings.supportMotionVectors);
             area.AmmendInfo(FrameSettingsField.TransparentsWriteMotionVector, overrideable: () => hdrpSettings.supportMotionVectors);

com.unity.render-pipelines.high-definition/Runtime/Material/VTBufferManager.cs

@@ -79,23 +79,29 @@ public void Cleanup()
 
         public void BeginRender(HDCamera hdCamera)
         {
-            int width = hdCamera.actualWidth;
-            int height = hdCamera.actualHeight;
-            bool msaa = hdCamera.frameSettings.IsEnabled(FrameSettingsField.MSAA);
-            GetResolveDimensions(ref width, ref height);
-            if (msaa)
-                m_ResolverMsaa.UpdateSize(width, height);
-            else
-                m_Resolver.UpdateSize(width, height);
+            if (hdCamera.frameSettings.IsEnabled(FrameSettingsField.VirtualTexturing))
+            {
+                int width = hdCamera.actualWidth;
+                int height = hdCamera.actualHeight;
+                bool msaa = hdCamera.frameSettings.IsEnabled(FrameSettingsField.MSAA);
+                GetResolveDimensions(ref width, ref height);
+                if (msaa)
+                    m_ResolverMsaa.UpdateSize(width, height);
+                else
+                    m_Resolver.UpdateSize(width, height);
+            }
         }
 
         public void Resolve(CommandBuffer cmd, RTHandle rt, HDCamera hdCamera)
         {
-            var parameters = PrepareResolveVTParameters(hdCamera);
-            var msaaEnabled = hdCamera.frameSettings.IsEnabled(FrameSettingsField.MSAA);
-            RTHandle input = msaaEnabled ? FeedbackBufferMsaa : (rt != null ? rt : FeedbackBuffer);
+            if (hdCamera.frameSettings.IsEnabled(FrameSettingsField.VirtualTexturing))
+            {
+                var parameters = PrepareResolveVTParameters(hdCamera);
+                var msaaEnabled = hdCamera.frameSettings.IsEnabled(FrameSettingsField.MSAA);
+                RTHandle input = msaaEnabled ? FeedbackBufferMsaa : (rt != null ? rt : FeedbackBuffer);
 
-            ResolveVTDispatch(parameters, cmd, input, m_LowresResolver);
+                ResolveVTDispatch(parameters, cmd, input, m_LowresResolver);
+            }
         }
 
         class ResolveVTData
@@ -107,21 +113,24 @@ class ResolveVTData
 
         public void Resolve(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle input)
         {
-            using (var builder = renderGraph.AddRenderPass<ResolveVTData>("Resolve VT", out var passData))
+            if (hdCamera.frameSettings.IsEnabled(FrameSettingsField.VirtualTexturing))
             {
-                // The output is never read outside the pass but is still useful for the VT system so we can't cull this pass.
-                builder.AllowPassCulling(false);
-
-                passData.parameters = PrepareResolveVTParameters(hdCamera);
-                passData.input = builder.ReadTexture(input);
-                passData.lowres = builder.WriteTexture(renderGraph.ImportTexture(m_LowresResolver));
-
-                builder.SetRenderFunc(
-                (ResolveVTData data, RenderGraphContext ctx) =>
+                using (var builder = renderGraph.AddRenderPass<ResolveVTData>("Resolve VT", out var passData))
                 {
-                    ResolveVTDispatch(data.parameters, ctx.cmd, data.input, data.lowres);
-                    VirtualTexturing.System.Update();
-                });
+                    // The output is never read outside the pass but is still useful for the VT system so we can't cull this pass.
+                    builder.AllowPassCulling(false);
+
+                    passData.parameters = PrepareResolveVTParameters(hdCamera);
+                    passData.input = builder.ReadTexture(input);
+                    passData.lowres = builder.WriteTexture(renderGraph.ImportTexture(m_LowresResolver));
+
+                    builder.SetRenderFunc(
+                    (ResolveVTData data, RenderGraphContext ctx) =>
+                    {
+                        ResolveVTDispatch(data.parameters, ctx.cmd, data.input, data.lowres);
+                        VirtualTexturing.System.Update();
+                    });
+                }
             }
         }
 

com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/HDRenderPipeline.cs

@@ -2992,12 +2992,15 @@ void Callback(CommandBuffer c, HDCamera cam)
             }
 
 #if ENABLE_VIRTUALTEXTURES
-            m_VtBufferManager.Resolve(cmd, m_GbufferManager.GetVTFeedbackBuffer(), hdCamera);
-            VirtualTexturing.System.Update();
-
-            if(m_VTDebugBlit != null)
+            if (hdCamera.frameSettings.IsEnabled(FrameSettingsField.VirtualTexturing))
             {
-                PushFullScreenVTFeedbackDebugTexture(cmd, GetVTFeedbackBufferForForward(hdCamera), hdCamera.frameSettings.IsEnabled(FrameSettingsField.MSAA));
+                m_VtBufferManager.Resolve(cmd, m_GbufferManager.GetVTFeedbackBuffer(), hdCamera);
+                VirtualTexturing.System.Update();
+
+                if (m_VTDebugBlit != null)
+                {
+                    PushFullScreenVTFeedbackDebugTexture(cmd, GetVTFeedbackBufferForForward(hdCamera), hdCamera.frameSettings.IsEnabled(FrameSettingsField.MSAA));
+                }
             }
 #endif
 

com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/Settings/FrameSettings.cs

@@ -132,6 +132,9 @@ public enum FrameSettingsField
         /// <summary>When enabled, HDRP renders custom passes contained in CustomPassVolume components.</summary>
         [FrameSettingsField(0, autoName: CustomPass, customOrderInGroup: 11, tooltip: "When enabled, HDRP renders custom passes contained in CustomPassVolume components.")]
         CustomPass = 6,
+        /// <summary>When enabled, HDRP can use virtual texturing.</summary>
+        [FrameSettingsField(0, autoName: VirtualTexturing, customOrderInGroup: 105, tooltip: "When enabled, HDRP can use virtual texturing.")]
+        VirtualTexturing = 67,
 
         /// <summary>When enabled, HDRP processes a motion vector pass for Cameras using these Frame Settings.</summary>
         [FrameSettingsField(0, autoName: MotionVectors, customOrderInGroup: 12, tooltip: "When enabled, HDRP processes a motion vector pass for Cameras using these Frame Settings (Depends on \"Motion Vectors\" in current HDRP Asset).")]
@@ -393,6 +396,7 @@ partial struct FrameSettings
                 (uint)FrameSettingsField.TransparentPrepass,
                 (uint)FrameSettingsField.TransparentPostpass,
                 (uint)FrameSettingsField.CustomPass,
+                (uint)FrameSettingsField.VirtualTexturing,
                 (uint)FrameSettingsField.MotionVectors, // Enable/disable whole motion vectors pass (Camera + Object).
                 (uint)FrameSettingsField.ObjectMotionVectors,
                 (uint)FrameSettingsField.Decals,
@@ -468,6 +472,7 @@ partial struct FrameSettings
                 (uint)FrameSettingsField.TransparentPrepass,
                 (uint)FrameSettingsField.TransparentPostpass,
                 (uint)FrameSettingsField.CustomPass,
+                (uint)FrameSettingsField.VirtualTexturing,
                 (uint)FrameSettingsField.MotionVectors, // Enable/disable whole motion vectors pass (Camera + Object).
                 (uint)FrameSettingsField.ObjectMotionVectors,
                 (uint)FrameSettingsField.Decals,
@@ -524,6 +529,7 @@ partial struct FrameSettings
                 (uint)FrameSettingsField.TransparentPrepass,
                 (uint)FrameSettingsField.TransparentPostpass,
                 (uint)FrameSettingsField.CustomPass,
+                (uint)FrameSettingsField.VirtualTexturing,
                 //(uint)FrameSettingsField.MotionVectors, // Enable/disable whole motion vectors pass (Camera + Object).
                 //(uint)FrameSettingsField.ObjectMotionVectors,
                 (uint)FrameSettingsField.Decals,