40f2df1a81
Adds support for clear attachments to the render graph. Clearing attachments require that the command buffer is being set for rendering (vkCmdBeginRendering). **What works** - Clear attachments are working with dynamic rendering and the render graph - `GPUVulkanTest.framebuffer_clear_color_single_attachment` - `GPUVulkanTest.framebuffer_clear_color_multiple_attachments` - `GPUVulkanTest.framebuffer_clear_multiple_color_multiple_attachments` - `GPUVulkanTest.framebuffer_scissor_test` - `GPUVulkanTest.framebuffer_clear_depth` **What still needs to be addressed** When a command buffer is rendering it cannot do any pipeline barriers. For clearing attachments this isn't needed, but when we address drawing we might need to register drawing resource dependencies to the dependency list of the begin rendering node. This will be solved when drawing will be implemented. [#121648] The begin rendering node is large as it has to store data for framebuffers with 8 color attachments as well. This might become an overhead and we could solve this by splicing the data of larger nodes into 2 lists. This will be addressed after we are able to draw a screen so we can collect data on this topic. [#121649] Pull Request: https://projects.blender.org/blender/blender/pulls/121073
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