Process completed with exit code 1.

Error: Snapshot `uniformity test example > should produce valid code 1` mismatched - Expected + Received @@ -79,22 +79,29 @@ x *= 830770091u; x ^= (x >> 14u); return x; } + fn rotl(x: u32, k: u32) -> u32 { + return ((x << k) | (x >> (32u - k))); + } + var<private> seed: u32; - fn seed_1(value: f32) { - seed = hash(u32(value)); + fn seed2(value: vec2f) { + var u32Value = bitcast<vec2u>(value); + let hx = hash((u32Value.x ^ 1253408251u)); + let hy = hash((u32Value.y ^ 2900286023u)); + seed = hash((hx ^ rotl(hy, 16u))); } - fn randSeed(seed: f32) { + fn randSeed2(seed: vec2f) { - seed_1(seed); + seed2(seed); } fn u32To01F32(value: u32) -> f32 { - let mantissa = (value >> 9u); + let mantissa = (value & 8388607u); let bits = (1065353216u | mantissa); let f = bitcast<f32>(bits); return (f - 1f); } @@ -110,11 +117,11 @@ @group(1) @binding(0) var texture: texture_storage_2d<r32float, write>; fn computeFn(x: u32, y: u32, _arg_2: u32) { let gridSize = configUniform.gridSize; { - randSeed(((f32((x + 1u)) * gridSize) + f32((y + 1u)))); + randSeed2((vec2f(f32(x), f32(y)) + 1f)); } var i = 0u; let samplesPerThread = configUniform.samplesPerThread; var samples = 0f; while ((i < (samplesPerThread - 1u))) { @@ -162,12 +169,13 @@ } var<private> seed: vec2u; fn seed2(value: vec2f) { - let hx = hash((u32(value.x) ^ 2135587861u)); + var u32Value = bitcast<vec2u>(value); + let hx = hash((u32Value.x ^ 1253408251u)); - let hy = hash((u32(value.y) ^ 2654435769u)); + let hy = hash((u32Value.y ^ 2900286023u)); seed = vec2u(hash((hx ^ hy)), hash((rotl(hx, 16u) ^ hy))); } fn randSeed2(seed: vec2f) { seed2(seed); @@ -181,11 +189,11 @@ seed[1i] = rotl(s1, 13u); return (rotl((seed[0i] * 2654435771u), 5u) * 5u); } fn u32To01F32(value: u32) -> f32 { - let mantissa = (value >> 9u); + let mantissa = (value & 8388607u); let bits = (1065353216u | mantissa); let f = bitcast<f32>(bits); return (f - 1f); } ❯ tests/individual-example-tests/uniformity.test.ts:25:25