4bf647ff3b
# Objective - Alpha blending can easily fail in many situations and requires sorting on the cpu ## Solution - Implement order independent transparency (OIT) as an alternative to alpha blending - The implementation uses 2 passes - The first pass records all the fragments colors and position to a buffer that is the size of N layers * the render target resolution. - The second pass sorts the fragments, blends them and draws them to the screen. It also currently does manual depth testing because early-z fails in too many cases in the first pass. ## Testing - We've been using this implementation at foresight in production for many months now and we haven't had any issues related to OIT. --- ## Showcase   ## Future work - Add an example showing how to use OIT for a custom material - Next step would be to implement a per-pixel linked list to reduce memory use - I'd also like to investigate using a BinnedRenderPhase instead of a SortedRenderPhase. If it works, it would make the transparent pass significantly faster. --------- Co-authored-by: Kristoffer Søholm <k.soeholm@gmail.com> Co-authored-by: JMS55 <47158642+JMS55@users.noreply.github.com> Co-authored-by: Charlotte McElwain <charlotte.c.mcelwain@gmail.com>
52 lines
1.7 KiB
TOML
52 lines
1.7 KiB
TOML
[package]
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name = "bevy_core_pipeline"
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version = "0.15.0-dev"
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edition = "2021"
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authors = [
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"Bevy Contributors <bevyengine@gmail.com>",
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"Carter Anderson <mcanders1@gmail.com>",
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]
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description = "Provides a core render pipeline 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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dds = ["bevy_render/dds", "bevy_image/dds"]
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trace = []
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webgl = []
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webgpu = []
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tonemapping_luts = ["bevy_render/ktx2", "bevy_image/ktx2", "bevy_image/zstd"]
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smaa_luts = ["bevy_render/ktx2", "bevy_image/ktx2", "bevy_image/zstd"]
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[dependencies]
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# bevy
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bevy_app = { path = "../bevy_app", version = "0.15.0-dev" }
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bevy_asset = { path = "../bevy_asset", version = "0.15.0-dev" }
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bevy_core = { path = "../bevy_core", version = "0.15.0-dev" }
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bevy_color = { path = "../bevy_color", version = "0.15.0-dev" }
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bevy_derive = { path = "../bevy_derive", version = "0.15.0-dev" }
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bevy_ecs = { path = "../bevy_ecs", version = "0.15.0-dev" }
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bevy_image = { path = "../bevy_image", version = "0.15.0-dev" }
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bevy_reflect = { path = "../bevy_reflect", version = "0.15.0-dev" }
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bevy_render = { path = "../bevy_render", version = "0.15.0-dev" }
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bevy_transform = { path = "../bevy_transform", version = "0.15.0-dev" }
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bevy_math = { path = "../bevy_math", version = "0.15.0-dev" }
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bevy_utils = { path = "../bevy_utils", version = "0.15.0-dev" }
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bevy_window = { path = "../bevy_window", version = "0.15.0-dev" }
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serde = { version = "1", features = ["derive"] }
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bitflags = "2.3"
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radsort = "0.1"
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nonmax = "0.5"
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smallvec = "1"
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thiserror = "1.0"
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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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