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M13.23: GPU simulation render passes

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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/context.rs
+2
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@@ -316,6 +316,7 @@ impl GpuContext {
include_str!("shaders/fx_extra.wgsl"),
include_str!("shaders/fx_depth.wgsl"),
include_str!("shaders/fx_lut.wgsl"),
include_str!("shaders/fx_sim.wgsl"),
include_str!("shaders/fx_vr.wgsl"),
]
.concat();
@@ -378,6 +379,7 @@ impl GpuContext {
.chain(crate::fx_extra::KERNELS)
.chain(crate::fx_depth::KERNELS)
.chain(crate::fx_lut::KERNELS)
.chain(crate::fx_sim::KERNELS)
.chain(crate::fx_vr::KERNELS)
.map(|e| (e, &layout))
.chain(EXT_ENTRIES.iter().map(|e| (e, &layout_ext)))