noteuclid/gpu-life
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Now it’s 8-layer life!

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This commit is contained in:
numzero 2025-01-11 02:41:07 +03:00
parent c39fca1567
commit 33487a68b2
3 changed files with 10 additions and 2 deletions
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2
src/fill.wgsl
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@ -16,7 +16,7 @@ fn on_fragment(in: Varying) -> @location(0) u32 {
let x = bitcast<u32>(in.screen.x); let x = bitcast<u32>(in.screen.x);
let y = bitcast<u32>(in.screen.y); let y = bitcast<u32>(in.screen.y);
let rand = hash(hash(hash(SEED) ^ hash(x)) ^ hash(y)); let rand = hash(hash(hash(SEED) ^ hash(x)) ^ hash(y));
return rand >> 31; return rand >> 24;
} }
fn hash(key : u32) -> u32 { fn hash(key : u32) -> u32 {

2
src/present.wgsl
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@ -16,5 +16,5 @@ fn on_vertex(@builtin(vertex_index) vi: u32) -> Varying {
fn on_fragment(in: Varying) -> @location(0) vec4f { fn on_fragment(in: Varying) -> @location(0) vec4f {
let pos = vec2u(in.screen.xy); let pos = vec2u(in.screen.xy);
let state = textureLoad(field, pos, 0).x; let state = textureLoad(field, pos, 0).x;
return vec4f(f32(state)); return vec4f(f32(state) / 255.);
} }

8
src/step.wgsl
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@ -20,6 +20,14 @@ fn on_fragment(in: Varying) -> @location(0) u32 {
let b = textureGather(0, field, smp, in.uv, vec2(0, 1)); let b = textureGather(0, field, smp, in.uv, vec2(0, 1));
let c = textureGather(0, field, smp, in.uv, vec2(1, 0)); let c = textureGather(0, field, smp, in.uv, vec2(1, 0));
let d = textureGather(0, field, smp, in.uv, vec2(1, 1)); let d = textureGather(0, field, smp, in.uv, vec2(1, 1));
var ret = 0u;
for (var layer = 0u; layer < 8u; layer++) {
ret |= calc(a >> vec4(layer) & vec4(1u), b >> vec4(layer) & vec4(1u), c >> vec4(layer) & vec4(1u), d >> vec4(layer) & vec4(1u)) << layer;
}
return ret;
}
fn calc(a: vec4u, b: vec4u, c: vec4u, d: vec4u) -> u32 {
let state = a.y; let state = a.y;
let n = a.x + a.z + a.w + b.x + b.y + c.y + c.z + d.y; let n = a.x + a.z + a.w + b.x + b.y + c.y + c.z + d.y;
switch (n) { switch (n) {