0ede857103
Currently, invocations of `batch_and_prepare_binned_render_phase` and `batch_and_prepare_sorted_render_phase` can't run in parallel because they write to scene-global GPU buffers. After PR #17698, `batch_and_prepare_binned_render_phase` started accounting for the lion's share of the CPU time, causing us to be strongly CPU bound on scenes like Caldera when occlusion culling was on (because of the overhead of batching for the Z-prepass). Although I eventually plan to optimize `batch_and_prepare_binned_render_phase`, we can obtain significant wins now by parallelizing that system across phases. This commit splits all GPU buffers that `batch_and_prepare_binned_render_phase` and `batch_and_prepare_sorted_render_phase` touches into separate buffers for each phase so that the scheduler will run those phases in parallel. At the end of batch preparation, we gather the render phases up into a single resource with a new *collection* phase. Because we already run mesh preprocessing separately for each phase in order to make occlusion culling work, this is actually a cleaner separation. For example, mesh output indices (the unique ID that identifies each mesh instance on GPU) are now guaranteed to be sequential starting from 0, which will simplify the forthcoming work to remove them in favor of the compute dispatch ID. On Caldera, this brings the frame time down to approximately 9.1 ms with occlusion culling on. 
138 lines
4.7 KiB
TOML
138 lines
4.7 KiB
TOML
[package]
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name = "bevy_render"
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version = "0.16.0-dev"
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edition = "2021"
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description = "Provides rendering functionality for Bevy Engine"
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homepage = "https://bevyengine.org"
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repository = "https://github.com/bevyengine/bevy"
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license = "MIT OR Apache-2.0"
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keywords = ["bevy"]
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[features]
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# Texture formats (require more than just image support)
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basis-universal = ["bevy_image/basis-universal"]
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dds = ["bevy_image/dds"]
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exr = ["bevy_image/exr"]
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hdr = ["bevy_image/hdr"]
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ktx2 = ["dep:ktx2", "bevy_image/ktx2"]
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multi_threaded = ["bevy_tasks/multi_threaded"]
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shader_format_glsl = ["naga/glsl-in", "naga/wgsl-out", "naga_oil/glsl"]
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shader_format_spirv = ["wgpu/spirv", "naga/spv-in", "naga/spv-out"]
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# Enable SPIR-V shader passthrough
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spirv_shader_passthrough = ["wgpu/spirv"]
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# Statically linked DXC shader compiler for DirectX 12
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# TODO: When wgpu switches to DirectX 12 instead of Vulkan by default on windows, make this a default feature
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statically-linked-dxc = ["wgpu/static-dxc"]
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trace = ["profiling"]
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tracing-tracy = []
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ci_limits = []
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webgl = ["wgpu/webgl"]
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webgpu = ["wgpu/webgpu"]
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detailed_trace = []
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[dependencies]
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# bevy
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bevy_app = { path = "../bevy_app", version = "0.16.0-dev" }
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bevy_asset = { path = "../bevy_asset", version = "0.16.0-dev" }
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bevy_color = { path = "../bevy_color", version = "0.16.0-dev", features = [
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"serialize",
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"wgpu-types",
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] }
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bevy_derive = { path = "../bevy_derive", version = "0.16.0-dev" }
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bevy_diagnostic = { path = "../bevy_diagnostic", version = "0.16.0-dev" }
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bevy_ecs = { path = "../bevy_ecs", version = "0.16.0-dev" }
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bevy_encase_derive = { path = "../bevy_encase_derive", version = "0.16.0-dev" }
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bevy_math = { path = "../bevy_math", version = "0.16.0-dev" }
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bevy_reflect = { path = "../bevy_reflect", version = "0.16.0-dev", features = [
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"bevy",
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] }
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bevy_render_macros = { path = "macros", version = "0.16.0-dev" }
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bevy_time = { path = "../bevy_time", version = "0.16.0-dev" }
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bevy_transform = { path = "../bevy_transform", version = "0.16.0-dev" }
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bevy_window = { path = "../bevy_window", version = "0.16.0-dev" }
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bevy_utils = { path = "../bevy_utils", version = "0.16.0-dev" }
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bevy_tasks = { path = "../bevy_tasks", version = "0.16.0-dev" }
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bevy_image = { path = "../bevy_image", version = "0.16.0-dev" }
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bevy_mesh = { path = "../bevy_mesh", version = "0.16.0-dev" }
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bevy_platform_support = { path = "../bevy_platform_support", version = "0.16.0-dev", default-features = false, features = [
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"std",
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"serialize",
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] }
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# rendering
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image = { version = "0.25.2", default-features = false }
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# misc
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codespan-reporting = "0.11.0"
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# `fragile-send-sync-non-atomic-wasm` feature means we can't use Wasm threads for rendering
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# It is enabled for now to avoid having to do a significant overhaul of the renderer just for wasm.
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# When the 'atomics' feature is enabled `fragile-send-sync-non-atomic` does nothing
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# and Bevy instead wraps `wgpu` types to verify they are not used off their origin thread.
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wgpu = { version = "24", default-features = false, features = [
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"wgsl",
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"dx12",
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"metal",
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"naga-ir",
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"fragile-send-sync-non-atomic-wasm",
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] }
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naga = { version = "24", features = ["wgsl-in"] }
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serde = { version = "1", features = ["derive"] }
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bytemuck = { version = "1.5", features = ["derive", "must_cast"] }
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downcast-rs = { version = "2", default-features = false, features = ["std"] }
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thiserror = { version = "2", default-features = false }
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derive_more = { version = "1", default-features = false, features = ["from"] }
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futures-lite = "2.0.1"
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ktx2 = { version = "0.3.0", optional = true }
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encase = { version = "0.10", features = ["glam"] }
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# For wgpu profiling using tracing. Use `RUST_LOG=info` to also capture the wgpu spans.
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profiling = { version = "1", features = [
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"profile-with-tracing",
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], optional = true }
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async-channel = "2.3.0"
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nonmax = "0.5"
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smallvec = { version = "1.11", features = ["const_new"] }
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offset-allocator = "0.2"
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variadics_please = "1.1"
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tracing = { version = "0.1", default-features = false, features = ["std"] }
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indexmap = { version = "2" }
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fixedbitset = { version = "0.5" }
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bitflags = "2"
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[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
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# Omit the `glsl` feature in non-WebAssembly by default.
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naga_oil = { version = "0.17", default-features = false, features = [
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"test_shader",
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] }
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[dev-dependencies]
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proptest = "1"
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[target.'cfg(target_arch = "wasm32")'.dependencies]
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naga_oil = "0.17"
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js-sys = "0.3"
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web-sys = { version = "0.3.67", features = [
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'Blob',
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'Document',
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'Element',
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'HtmlElement',
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'Node',
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'Url',
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'Window',
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] }
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wasm-bindgen = "0.2"
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[target.'cfg(all(target_arch = "wasm32", target_feature = "atomics"))'.dependencies]
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send_wrapper = "0.6.0"
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[lints]
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workspace = true
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[package.metadata.docs.rs]
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rustdoc-args = ["-Zunstable-options", "--generate-link-to-definition"]
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all-features = true
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