Rusty mech engine
For the upcoming game, nmg (original prototype here)!
nmg-vulkan
is a game engine written from scratch in Rust,
specialized for two things:
Papers implemented:
These validation errors (below) appear during a crash induced by running the text demo and replacing the default shaders with the font shaders (a mistake). Commit hash d824928316827fbdac5f64ce3c45fd53c6692331 on feature/text.
While undefined behavior is expected in this case, the errors only appear on my machine (tested on four machines). It's possible that it points to a separate issue.
After reviewing the log below, it looks as though these errors are being produced in the free_device_refresh() or refresh_swapchain() methods on render::Context.
DEBUG_REPORT: Object: 0x83 (Type = 9) | Cannot free buffer 0x83 that is in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to buffer, either directly or via a VkBufferView, must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyBuffer-buffer-00922)
DEBUG_REPORT: Object: 0x85 (Type = 9) | Cannot free buffer 0x85 that is in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to buffer, either directly or via a VkBufferView, must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyBuffer-buffer-00922)
DEBUG_REPORT: Object: 0x87 (Type = 9) | Cannot free buffer 0x87 that is in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to buffer, either directly or via a VkBufferView, must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyBuffer-buffer-00922)
DEBUG_REPORT: Object: 0xa (Type = 9) | Cannot free buffer 0xa that is in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to buffer, either directly or via a VkBufferView, must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyBuffer-buffer-00922)
DEBUG_REPORT: Object: 0x5 (Type = 5) | Cannot call vkDestroySemaphore on Semaphore 0x5 that is currently in use by a command buffer. The spec valid usage text states 'All submitted batches that refer to semaphore must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroySemaphore-semaphore-01137)
DEBUG_REPORT: Object: 0x6c (Type = 7) | Fence 0x6c is in use. The spec valid usage text states 'All queue submission commands that refer to fence must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyFence-fence-01120)
DEBUG_REPORT: Object: 0x75 (Type = 19) | Cannot call vkDestroyPipeline on Pipeline 0x75 that is currently in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to pipeline must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyPipeline-pipeline-00765)
DEBUG_REPORT: Object: 0x80 (Type = 24) | Cannot call vkDestroyFramebuffer on Framebuffer 0x80 that is currently in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to framebuffer must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyFramebuffer-framebuffer-00892)
DEBUG_REPORT: Object: 0x74 (Type = 18) | Cannot call vkDestroyRenderPass on RenderPass 0x74 that is currently in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to renderPass must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyRenderPass-renderPass-00873)
DEBUG_REPORT: Object: 0x7d (Type = 14) | Cannot call vkDestroyImageView on ImageView 0x7d that is currently in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to imageView must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyImageView-imageView-01026)
DEBUG_REPORT: Object: 0x7feb1127d400 (Type = 6) | Attempt to free command buffer (0x7feb1127d400) which is in use. The spec valid usage text states 'All elements of pCommandBuffers must not be in the pending state' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkFreeCommandBuffers-pCommandBuffers-00047)
DEBUG_REPORT: Object: 0x7b (Type = 10) | Cannot call vkDestroyImage on Image 0x7b that is currently in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to image, either directly or via a VkImageView, must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyImage-image-01000)
DEBUG_REPORT: Object: 0x73 (Type = 14) | Cannot call vkDestroyImageView on ImageView 0x73 that is currently in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to imageView must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyImageView-imageView-01026)
DEBUG_REPORT: Object: 0x81 (Type = 22) | Cannot call vkDestroyDescriptorPool on DescriptorPool 0x81 that is currently in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to descriptorPool (via any allocated descriptor sets) must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyDescriptorPool-descriptorPool-00303)
DEBUG_REPORT: Object: 0x95 (Type = 19) | Cannot call vkDestroyPipeline on Pipeline 0x95 that is currently in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to pipeline must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyPipeline-pipeline-00765)
DEBUG_REPORT: Object: 0x89 (Type = 10) | Cannot call vkDestroyImage on Image 0x89 that is currently in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to image, either directly or via a VkImageView, must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyImage-image-01000)
DEBUG_REPORT: Object: 0x8d (Type = 14) | Cannot call vkDestroyImageView on ImageView 0x8d that is currently in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to imageView must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyImageView-imageView-01026)
DEBUG_REPORT: Object: 0x8f (Type = 22) | Cannot call vkDestroyDescriptorPool on DescriptorPool 0x8f that is currently in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to descriptorPool (via any allocated descriptor sets) must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyDescriptorPool-descriptorPool-00303)
DEBUG_REPORT: Object: 0x8e (Type = 21) | Cannot call vkDestroySampler on Sampler 0x8e that is currently in use by a command buffer. The spec valid usage text states 'All submitted commands that refer to sampler must have completed execution' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroySampler-sampler-01082)
Discovered by @hobogenized.
When running on Windows, the simulation pauses when window context is lost. However, a keyboard interrupt (in the shell) causes the simulation to resume.
After resetting to a very old commit (before the library split) we confirmed that this bug has not always existed.
I was unable to reproduce this on my OS (but I use a tiled window manager).
The current API for transforms does not propagate transforms from parents to children in the individual setter methods for Transforms. They are propagated in the raw setters and the group setters.
DEBUG_REPORT: [ UNASSIGNED-CoreValidation-Shader-InconsistentSpirv ] Object: VK_NULL_HANDLE (Type = 0) | SPIR-V module not valid: Structure id 27 decorated as Block must follow standard uniform buffer layout rules: member 1 at offset 12 overlaps previous member ending at offset 15
OpFunctionEnd
Check the disassembly for more details on this. Might be because you're passing a vec2 after a vec3.
Currently builds debug and text shaders on refresh, which is not necessary. Will want to separate rebuilding resources from shader building and reuse shaders for the new built resources.
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