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Fix blocky WebGPU sky: view inputs refresh when the camera moves (t91)

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
44r0n7
2026-10-28 17:46:52 -04:00
co-authored by Claude Opus 5.5
parent fbc3b07be2
commit f7ec8af791
12 changed files with 108 additions and 9 deletions
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src/render/gpu/smooth-shader.js
+2 -1
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@@ -15,7 +15,8 @@ fn modulo(x: f32,y: f32) -> f32 { return x-y*floor(x/y); }
fn h21(inputP: vec2f) -> f32 { var p=inputP; p = fract(p * vec2f(123.34, 456.21)); p += dot(p, p + 45.32); return fract(p.x * p.y); }
fn vn(p: vec2f) -> f32 {
var i: vec2f = floor(p); var f: vec2f = fract(p); f = f * f * (3.0 - 2.0 * f);
return mix(mix(h21(i), h21(i + vec2f(1, 0)), f.x), mix(h21(i + vec2f(0, 1)), h21(i + vec2f(1, 1)), f.x), f.y);
// Round corner sums before hashing so fused arithmetic cannot give shared corners different hashes.
return mix(mix(h21(i), h21(floor(i + vec2f(1, 0))), f.x), mix(h21(floor(i + vec2f(0, 1))), h21(floor(i + vec2f(1, 1))), f.x), f.y);
}
fn fbm(inputP: vec2f) -> f32 { var p=inputP; var a: f32 = 0.5; var s: f32 = 0.0; for (var k: i32 = 0; k < 4; k++) { s += a * vn(p); p = p * 2.03 + 17.1; a *= 0.5; } return s / 0.9375; }