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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Errors for a Clear Attachment for Stencil values if first in a vsg::View","articleBody":"I have a stencil clear attachment that I initialize like so:\n\n  **VkClearValue clearStencilValue{};\n  clearStencilValue.depthStencil = { 0.0f, 0 };\n  VkClearAttachment stencil_attachment{ VK_IMAGE_ASPECT_STENCIL_BIT, 1, clearStencilValue };\n  VkClearRect rect{ m_camera-\u003egetRenderArea(), 0, 1 };\n  m_stencil_clear_attachments = vsg::ClearAttachments::create(vsg::ClearAttachments::Attachments{ stencil_attachment }, vsg::ClearAttachments::Rects{ rect });**\n\nIf I add this as my first child to my main vsg::View, I will get the errors showing to the console if I turn on debugLayer:\n\n**Validation Error: [ VUID-vkCmdClearAttachments-aspectMask-07885 ] | MessageID = 0x5baaed1d\nvkCmdClearAttachments(): pAttachments[0] in pSubpasses[0] has VK_IMAGE_ASPECT_STENCIL_BIT and is backed by an image view with format (VK_FORMAT_D32_SFLOAT).\nThe Vulkan spec states: If the current render pass instance does not use dynamic rendering, and the aspectMask member of any element of pAttachments contains VK_IMAGE_ASPECT_STENCIL_BIT, the current subpass instance's depth-stencil attachment must be either VK_ATTACHMENT_UNUSED or the attachment format must contain a stencil component (https://vulkan.lunarg.com/doc/view/1.4.309.0/windows/antora/spec/latest/chapters/clears.html#VUID-vkCmdClearAttachments-aspectMask-07885)\nObjects: 3\n    [0] VkCommandBuffer 0x1b71fecdef0\n    [1] VkRenderPass 0xba7514000000002a\n    [2] VkImageView 0xb9181f0000000029**\n\nThis appears to be because I have the view dependent shadows on and I get more than one (maybe because I have requested more than one shadowmap?)\n\nIf Instead, I add a large scene group node to the view, and somewhere down in the group I add this clear attachment, I will not see these errors.\n\nEither way, the results look fine on the screen - I think it's just complaining that the clear stencil isn't going to work for the shadow image which is a depth-only image (VK_FORMAT_D32_SFLOAT) I believe.\n\nI expected that it wouldn't matter where I place this attachment.  I'm trying to place it as a separate first child in my main view because I also have an off-screen view which needs a DIFFERENT attachment because it will have a different rect for it's offscreen image size.  If I try to share this attachment in a single scene with both vsg::Views, I get the mismatch size error because this clear attachment won't work for both views.  Any thoughts?  Should I just ignore them?\n\n - OS: Windows 11 x64\n","author":{"url":"https://github.com/hytel","@type":"Person","name":"hytel"},"datePublished":"2025-06-25T16:34:56.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/1514/VulkanSceneGraph/issues/1514"}