Rust voxel sandbox (wgpu + wasm + axum multiplayer)
bd6b3fadb0
New WGSL files:
mask.wgsl Sun-cone × sky-alpha mask at ¼ resolution. Marks sky
pixels (scene_color.a == 0) that fall within a tight
cone around the sun direction. Sun direction derived
from scene time via the injected DAY_PERIOD /
SUN_OFFSET constants — same source as sim::lighting,
so visual rays align with the mechanical sun.
shafts.wgsl Radial blur at ¼ resolution. Projects the sun
direction-at-infinity to screen space via view_proj,
steps 32 samples from each pixel toward the
sun_screen_pos accumulating mask intensity with
exponential decay, outputs sun-tinted ray color.
shader.wgsl:
- fs_sky now writes alpha = 0 so the mask pass can identify sky
pixels without a separate occluder pass. Terrain / outline /
remote-player pipelines continue writing alpha = 1.
post.wgsl (rewritten):
- Reads scene_color + shafts.
- Cheap edge-aware FXAA (5-tap diagonal blur, blends toward neighbor
average where luminance gradient exceeds threshold). Catches the
axis-aligned staircase aliasing that voxel games produce.
- Adds shafts additively before tonemap so rays go through the
filmic curve and don't blow out.
render/scene_target.rs:
- create_image_bind_group (single texture + sampler) — used by
mask pass (binds scene_color) and shafts pass (binds mask_view).
- create_composite_bind_group (scene + shafts + sampler) — used by
the final post pass.
- create_quarter_res_view (¹⁄₁₆ fillrate, RENDER_ATTACHMENT +
TEXTURE_BINDING) — used for both mask and shafts targets.
render/pipelines.rs:
- image_bgl / composite_bgl as separate layouts.
- fullscreen_pipeline factory replaces the post-specific one;
takes vs/fs entry-point names so mask, shafts, and post all
build through the same shape.
render/mod.rs:
- Renderer grows mask_view, shafts_view, image_bgl, composite_bgl,
mask_pipeline, shafts_pipeline, mask_bg, shafts_bg fields. The
old single-pass post_pipeline becomes the final composite pass.
- render() now does scene → mask → shafts → post (each in its own
encoder block).
- resize() recreates all three render targets and all three bind
groups in the right order.
Tests: 63 passing (added 2 for mask/shafts source assembly). Native
+ wasm release clean.
Visual change: when you face roughly toward the sun and there's
geometry blocking the disc, you'll see warm light shafts radiating
outward. FXAA softens the worst pixel-step edges. Tonemap (from
Round A) is now the final step of the new pipeline.
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| server | ||
| src | ||
| web | ||
| .dockerignore | ||
| .gitignore | ||
| ARCHITECTURE.md | ||
| build-web.sh | ||
| Caddyfile | ||
| Cargo.lock | ||
| Cargo.toml | ||
| DEPLOY.md | ||
| docker-compose.prod.yml | ||
| docker-compose.yml | ||
| Dockerfile | ||
| run.sh | ||