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M13.23: GPU simulation render passes

Browse Source 
CC Rainfall, Snowfall, Star Burst, Bubbles, Drizzle, Hair, Mr. Mercury,
Caustics, Wave World, Foam, Shatter, Card Dance and Card Wipe render on the GPU
(fx_sim.rs / fx_sim.wgsl). The per-frame simulation / layout stays on the CPU
and is shared with the CPU effect through plans (effects::sprite_plan,
piece_plan, bubble_list, mercury_blobs, drizzle_drops, wave_world_plan,
caustics_setup); a tiled item rasteriser composites sprites, bubbles, blob
fields and textured pieces in the CPU's order and shading. Layer-dependent
sprite colours (refracting rain, star-burst and hair roots) are sampled per
pixel; piece plans read the frame back once.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Brandon Thomas
2026-10-03 18:35:22 -04:00
co-authored by Claude Opus 5.5
parent 2e5ea051a8
commit 1ec9336d7c
12 changed files with 1796 additions and 206 deletions
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crates/gpu/src/effects.rs
+1
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@@ -135,6 +135,7 @@ fn apply(e: &mut Enc, id: &str, ctx: &EffectCtx, b: GBuf) -> Option<GBuf> {
_ if crate::fx_extra::IDS.contains(&id) => crate::fx_extra::apply(e, id, ctx, b),
_ if crate::fx_depth::IDS.contains(&id) => crate::fx_depth::apply(e, id, ctx, b),
_ if crate::fx_lut::IDS.contains(&id) => crate::fx_lut::apply(e, id, ctx, b),
_ if crate::fx_sim::IDS.contains(&id) => crate::fx_sim::apply(e, id, ctx, b),
_ if crate::fx_vr::IDS.contains(&id) => crate::fx_vr::apply(e, id, ctx, b),
_ => pointwise(e, id, ctx, b),
}