de4dee51bb
Extends "conformance is a hash" from codecs (replicate) to GENERATION (create). Every other generative path (wai.semantic.*) is float + similarity-judged, so its output varies by hardware and can never go in a receipt. This is the opposite: a generator whose ENTIRE pipeline is integer/fixed-point, pinned to (model, prompt, seed, steps), so the GENERATED image is byte-identical on every machine — its hash is portable and receiptable even though there is no original. Generation-equivalence. - src/generate.rs (feature `generate`, pure i64, no float/ONNX, wasm-ready): fixed-point spectral synthesis — prompt+seed fold into a splitmix64 PRNG that draws K = base + steps·step integer sinusoid components (fx, fy, amp, phase); each pixel sums amp·sine_lut[(fx·x+fy·y+phase+colour_phase) mod T]; the field is normalized to [0,255] by integer min/max. The float sin() that bakes the LUT runs once at model-build (tools/wai_generate_model.py), NEVER at generation. - ReplicateClass::GenerativeDeterministic — the create-side quadrant, distinct from Behavioral (similarity, the semantic path) and the neural-decode classes. Wired wai.generate.spectral (Lossless tier, royalty-free) + SPEC §6 + capabilities table. - Committed pinned vector (tests/vectors/generate/): the model bundle + generate.json pin. NEVER-skip test: the pin reproduces fnv1a 10b690999f6c5616 byte-for-byte, regeneration is identical (determinism), and prompt/seed/steps each change the output (it is conditioned, not constant). examples/gen_preview.rs dumps a preview. Co-Authored-By: Claude Opus 4.8 <[email protected]>
10 lines
688 B
Rust
10 lines
688 B
Rust
//! Dump a generated image to raw RGB for preview: cargo run --example gen_preview --features generate -- <prompt> <seed> <steps> <size> <out>
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fn main() {
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let a: Vec<String> = std::env::args().collect();
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let m = wai::generate::SpectralModel::from_value(
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&serde_json::from_slice(&std::fs::read("tests/vectors/generate/generate_spectral_model.json").unwrap()).unwrap());
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let (prompt, seed, steps, n, out) = (&a[1], a[2].parse().unwrap(), a[3].parse().unwrap(), a[4].parse::<usize>().unwrap(), &a[5]);
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let rgb = wai::generate::generate(&m, prompt, seed, steps, n, n);
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std::fs::write(out, &rgb).unwrap();
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eprintln!("{n}x{n} -> {out} ({} bytes)", rgb.len());
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}
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