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WIP: Vulkan: Clearing Storage Buffers #105299

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Jeroen Bakker wants to merge 73 commits from Jeroen-Bakker:gpu-storage-buffer-clear into main
pull from: Jeroen-Bakker:gpu-storage-buffer-clear
merge into: blender:main

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Conversation 0 Commits 73 Files Changed 24 +1424 -38
Jeroen Bakker commented 2023-02-28 15:53:59 +01:00
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Still WIP

Should support all valid combinations between of texture formats and data formats. With conversion.

**Still WIP** Should support all valid combinations between of texture formats and data formats. With conversion.
Jeroen Bakker added 72 commits 2023-02-28 15:54:55 +01:00
366404d274 Vulkan: Initial Compute Shaders and SSBO+VBO support. 
This patch adds initial support for compute shaders and SSBOs to
the vulkan backend. As the development is oriented to the test-
cases we have the implementation is limited to what is used there.

It has been validated that with this patch 2 test cases are running
as expected
- `GPUVulkanTest.gpu_shader_compute_ssbo`
- `GPUVulkanTest.gpu_storage_buffer_create_update_read`

This patch includes:
- Allocating VkBuffer on device.
- Uploading data from CPU to VkBuffer.
- Binding VkBuffer as SSBO to a compute shader.
- Execute compute shader and altering VkBuffer.
- Download the VkBuffer to CPU ram.
- Validate that it worked.

GHOST API has been changed as the original design was created before
we even had support for compute shaders in blender. The function `GHOST_getVulkanBackbuffer` has been separated to retrieve the command
buffer without a backbuffer (`GHOST_getVulkanCommandBuffer`). In order
to do correct command buffer processing we needed access to the queue
owned by GHOST. This is returned as part of the `GHOST_getVulkanHandles`
function.
26b0c7c3fb Increase descriptor pool resources. 
Added image samplers and uniform buffers. Required for
shader builder.
797320c96b Use storage buffers as fallback. 
Eventually we want to use uniform buffers as they are a bit faster.
But they require std140.
Jeroen Bakker added the
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Vulkan
 label 2023-02-28 15:57:47 +01:00
Jeroen Bakker added this to the 3.6 LTS milestone 2023-02-28 15:57:54 +01:00
Jeroen Bakker added this to the EEVEE & Viewport project 2023-02-28 15:58:03 +01:00
Jeroen Bakker self-assigned this 2023-02-28 15:58:22 +01:00
Jeroen Bakker closed this pull request 2023-03-06 13:33:36 +01:00

Pull request closed

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