Patrick Walton f9cc91d5a1 Intern mesh vertex buffer layouts so that we don't have to compare them over and over. (#12216) ... Although we cached hashes of `MeshVertexBufferLayout`, we were paying the cost of `PartialEq` on `InnerMeshVertexBufferLayout` for every entity, every frame. This patch changes that logic to place `MeshVertexBufferLayout`s in `Arc`s so that they can be compared and hashed by pointer. This results in a 28% speedup in the `queue_material_meshes` phase of `many_cubes`, with frustum culling disabled. Additionally, this patch contains two minor changes: 1. This commit flattens the specialized mesh pipeline cache to one level of hash tables instead of two. This saves a hash lookup. 2. The example `many_cubes` has been given a `--no-frustum-culling` flag, to aid in benchmarking. See the Tracy profile: <img width="1064" alt="Screenshot 2024-02-29 144406" src="https://github.com/bevyengine/bevy/assets/157897/18632f1d-1fdd-4ac7-90ed-2d10306b2a1e"> ## Migration guide * Duplicate `MeshVertexBufferLayout`s are now combined into a single object, `MeshVertexBufferLayoutRef`, which contains an atomically-reference-counted pointer to the layout. Code that was using `MeshVertexBufferLayout` may need to be updated to use `MeshVertexBufferLayoutRef` instead.		2024-03-01 20:56:21 +00:00
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mod.rs	Intern mesh vertex buffer layouts so that we don't have to compare them over and over. (#12216)	2024-03-01 20:56:21 +00:00
prepass.wgsl	Update to wgpu 0.19 and raw-window-handle 0.6 (#11280)	2024-01-26 18:14:21 +00:00
prepass_bindings.rs	Keep track of when a texture is first cleared (#10325)	2023-12-31 00:37:37 +00:00
prepass_bindings.wgsl	Swap material and mesh bind groups (#10485)	2023-11-28 22:26:22 +00:00
prepass_io.wgsl	Implement lightmaps. (#10231)	2024-01-02 20:38:47 +00:00
prepass_utils.wgsl	StandardMaterial Light Transmission (#8015)	2023-10-31 20:59:02 +00:00