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# Objective Allow for creating pipelines that use push constants. To be able to use push constants. Fixes #4825 As of right now, trying to call `RenderPass::set_push_constants` will trigger the following error: ``` thread 'main' panicked at 'wgpu error: Validation Error Caused by: In a RenderPass note: encoder = `<CommandBuffer-(0, 59, Vulkan)>` In a set_push_constant command provided push constant is for stage(s) VERTEX | FRAGMENT | VERTEX_FRAGMENT, however the pipeline layout has no push constant range for the stage(s) VERTEX | FRAGMENT | VERTEX_FRAGMENT ``` ## Solution Add a field push_constant_ranges to` RenderPipelineDescriptor` and `ComputePipelineDescriptor`. This PR supersedes #4908 which now contains merge conflicts due to significant changes to `bevy_render`. Meanwhile, this PR also made the `layout` field of `RenderPipelineDescriptor` and `ComputePipelineDescriptor` non-optional. If the user do not need to specify the bind group layouts, they can simply supply an empty vector here. No need for it to be optional. --- ## Changelog - Add a field push_constant_ranges to RenderPipelineDescriptor and ComputePipelineDescriptor - Made the `layout` field of RenderPipelineDescriptor and ComputePipelineDescriptor non-optional. ## Migration Guide - Add push_constant_ranges: Vec::new() to every `RenderPipelineDescriptor` and `ComputePipelineDescriptor` - Unwrap the optional values on the `layout` field of `RenderPipelineDescriptor` and `ComputePipelineDescriptor`. If the descriptor has no layout, supply an empty vector. Co-authored-by: Zhixing Zhang <me@neoto.xin> |
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