mirror of
https://github.com/bevyengine/bevy
synced 2024-11-14 17:07:47 +00:00
915fa69b66
# Objective Working with a large number of entities with `Aabbs`, rendered with an instanced shader, I found the bottleneck became the frustum culling system. The goal of this PR is to significantly improve culling performance without any major changes. We should consider constructing a BVH for more substantial improvements. ## Solution - Convert the inner entity query to a parallel iterator with `par_for_each_mut` using a batch size of 1,024. - This outperforms single threaded culling when there are more than 1,000 entities. - Below this they are approximately equal, with <= 10 microseconds of multithreading overhead. - Above this, the multithreaded version is significantly faster, scaling linearly with core count. - In my million-entity-workload, this PR improves my framerate by 200% - 300%. ## log-log of `check_visibility` time vs. entities for single/multithreaded  --- ## Changelog Frustum culling is now run with a parallel query. When culling more than a thousand entities, this is faster than the previous method, scaling proportionally with the number of available cores.
73 lines
2.5 KiB
TOML
73 lines
2.5 KiB
TOML
[package]
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name = "bevy_render"
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version = "0.8.0-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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png = ["image/png"]
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hdr = ["image/hdr"]
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tga = ["image/tga"]
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jpeg = ["image/jpeg"]
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bmp = ["image/bmp"]
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dds = ["ddsfile"]
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# For ktx2 supercompression
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zlib = ["flate2"]
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zstd = ["ruzstd"]
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trace = []
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tracing-tracy = []
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wgpu_trace = ["wgpu/trace"]
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ci_limits = []
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webgl = ["wgpu/webgl"]
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[dependencies]
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# bevy
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bevy_app = { path = "../bevy_app", version = "0.8.0-dev" }
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bevy_asset = { path = "../bevy_asset", version = "0.8.0-dev" }
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bevy_core = { path = "../bevy_core", version = "0.8.0-dev" }
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bevy_derive = { path = "../bevy_derive", version = "0.8.0-dev" }
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bevy_ecs = { path = "../bevy_ecs", version = "0.8.0-dev" }
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bevy_encase_derive = { path = "../bevy_encase_derive", version = "0.8.0-dev" }
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bevy_math = { path = "../bevy_math", version = "0.8.0-dev" }
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bevy_mikktspace = { path = "../bevy_mikktspace", version = "0.8.0-dev" }
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bevy_reflect = { path = "../bevy_reflect", version = "0.8.0-dev", features = ["bevy"] }
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bevy_render_macros = { path = "macros", version = "0.8.0-dev" }
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bevy_transform = { path = "../bevy_transform", version = "0.8.0-dev" }
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bevy_window = { path = "../bevy_window", version = "0.8.0-dev" }
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bevy_utils = { path = "../bevy_utils", version = "0.8.0-dev" }
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# rendering
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image = { version = "0.24", default-features = false }
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# misc
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wgpu = { version = "0.12.0", features = ["spirv"] }
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codespan-reporting = "0.11.0"
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naga = { version = "0.8.0", features = ["glsl-in", "spv-in", "spv-out", "wgsl-in", "wgsl-out"] }
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serde = { version = "1", features = ["derive"] }
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bitflags = "1.2.1"
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smallvec = { version = "1.6", features = ["union", "const_generics"] }
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once_cell = "1.4.1" # TODO: replace once_cell with std equivalent if/when this lands: https://github.com/rust-lang/rfcs/pull/2788
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downcast-rs = "1.2.0"
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thiserror = "1.0"
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futures-lite = "1.4.0"
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crossbeam-channel = "0.5.0"
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anyhow = "1.0"
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hex = "0.4.2"
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hexasphere = "7.0.0"
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parking_lot = "0.11.0"
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regex = "1.5"
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copyless = "0.1.5"
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ddsfile = { version = "0.5.0", optional = true }
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ktx2 = { version = "0.3.0", optional = true }
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# For ktx2 supercompression
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flate2 = { version = "1.0.22", optional = true }
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ruzstd = { version = "0.2.4", optional = true }
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# For transcoding of UASTC/ETC1S universal formats, and for .basis file support
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basis-universal = { version = "0.2.0", optional = true }
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encase = { version = "0.2", features = ["glam"] }
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