Add padded static size and recursive padding to crevice and use it #18
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Renamed PipelineDescriptor to RenderPipelineDescriptor
StandardMaterial flat values
…n for Bind Groups
* bevy_pbr2: Add support for most of the StandardMaterial textures Normal maps are not included here as they require tangents in a vertex attribute. * bevy_pbr2: Ensure RenderCommandQueue is ready for PbrShaders init * texture_pipelined: Add a light to the scene so we can see stuff * WIP bevy_pbr2: back to front sorting hack * bevy_pbr2: Uniform control flow for texture sampling in pbr.frag From 'fintelia' on the Bevy Render Rework Round 2 discussion: "My understanding is that GPUs these days never use the "execute both branches and select the result" strategy. Rather, what they do is evaluate the branch condition on all threads of a warp, and jump over it if all of them evaluate to false. If even a single thread needs to execute the if statement body, however, then the remaining threads are paused until that is completed." * bevy_pbr2: Simplify texture and sampler names The StandardMaterial_ prefix is no longer needed * bevy_pbr2: Match default 'AmbientColor' of current bevy_pbr for now * bevy_pbr2: Convert from non-linear to linear sRGB for the color uniform * bevy_pbr2: Add pbr_pipelined example * Fix view vector in pbr frag to work in ortho * bevy_pbr2: Use a 90 degree y fov and light range projection for lights * bevy_pbr2: Add AmbientLight resource * bevy_pbr2: Convert PointLight color to linear sRGB for use in fragment shader * bevy_pbr2: pbr.frag: Rename PointLight.projection to view_projection The uniform contains the view_projection matrix so this was incorrect. * bevy_pbr2: PointLight is an OmniLight as it has a radius * bevy_pbr2: Factoring out duplicated code * bevy_pbr2: Implement RenderAsset for StandardMaterial * Remove unnecessary texture and sampler clones * fix comment formatting * remove redundant Buffer:from * Don't extract meshes when their material textures aren't ready * make missing textures in the queue step an error Co-authored-by: Aevyrie <aevyrie@gmail.com> Co-authored-by: Carter Anderson <mcanders1@gmail.com>
Force main thread for prepare_windows system
bevy_pbr2: Fix light uniforms
This rounds up the size to the struct's alignment. This allows interoperability with wgsl.
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Looking at the wgsl spec: https://www.w3.org/TR/WGSL/#alignment-and-size For wgsl: it looks like a struct's alignment is the maximum alignment of its members. And a struct's size is the offset of the last member of the struct, plus the size of the last member of the struct (which is what I think implicit-stride arrays work the same way as glsl arrays, except that glsl seems to say things about aligning to vec4 unconditionally in some situations:
It's not exactly clear to me what the |
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I'll keep the discussion going over there, but I found an error case: LPGhatguy/crevice#29 (comment) |
* bevy_sprite2/_pbr2: Do not queue sprites/meshes if there are no views
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This appears to work just fine for rounding up the sizes. We had the code already for rounding up sizes to the struct alignment in
UniformVecfor item sizes so I just moved that intocreviceas astd140_padded_size_staticand tested it - it returns what wgpu expects for wgsl forGpuLightsandViewUniformmin_binding_sizeat least. I'll let them decide if it is fully correct, but if it isn't then we need to fixUniformVectoo I expect.