Steps to reproduce:
1. Create new Unity project using empty HDRP 3D Template
2. Import Environment Samples from Package Manager (PM window > High Definition Render Pipeline > Samples > Environment Samples > Import)
3. Open Environment.unity Scene (Assets/Samples/High Definition Render Pipeline/17.3.0/Environment Samples/Environment.unity)
4. In Hierarchy window select “Environment Sample Showcase”
5. In Inspector > Samples Showcase (Script) click on “Volumetric Clouds”
6. When Project Settings window opens, enable Volumetric Clouds (HDRP > Lighting > Volumetrics > Volumetric Clouds)
7. Observe the Console window
Actual results: Scene/Game view breaks when enabling Volumetric Clouds, errors are spammed in the Console window
Expected results: Scene/Game view should not breaks when enabling Volumetric Clouds, no errors spammed in the Console
Reproducible with versions: 6000.4.0a1 (b27b8eafe426)
Not reproducible with versions: 6000.3.0b4 (d9367c4960a7)
Tested on (OS): Windows 11, macOS Silicon, Tahoe 26.0 (M1)
Errors:
- Render Graph Execution error
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&) (at /Users/bokken/build/output/unity/unity/Modules/IMGUI/GUIUtility.cs:224)
- InvalidOperationException: In pass 'Volumetric Clouds Combine' when trying to use resource 'CameraDepthStencil PreRefraction' of type Texture at index 65 - SetRenderAttachment is called on a texture that is already used through UseTexture/SetRenderAttachment. Check your code and make sure the texture is only used once.
UnityEngine.Rendering.RenderGraphModule.RenderGraphBuilders.CheckUseFragment (UnityEngine.Rendering.RenderGraphModule.TextureHandle tex, System.Boolean isDepth) (at ./Library/PackageCache/com.unity.render-pipelines.core@942a815dc3c0/Runtime/RenderGraph/RenderGraphBuilders.cs:381)
UnityEngine.Rendering.RenderGraphModule.RenderGraphBuilders.SetRenderAttachmentDepth (UnityEngine.Rendering.RenderGraphModule.TextureHandle tex, UnityEngine.Rendering.RenderGraphModule.AccessFlags flags, System.Int32 mipLevel, System.Int32 depthSlice) (at ./Library/PackageCache/com.unity.render-pipelines.core@942a815dc3c0/Runtime/RenderGraph/RenderGraphBuilders.cs:483)