/visual-check <render-path> [<reference-path>]

Use Claude's multimodal Read tool to inspect the named render. If a reference path is also given, compare the two.

Output format

Produce a concise inspection note (5–10 lines) covering:

1. Overall impression: exposure, contrast, colour balance
2. Artifacts: fireflies, banding, NaN pixels (magenta/black spikes), aliasing, moire
3. Material fidelity: are metals metallic, glass transparent, diffuse surfaces diffuse?
4. Spectral signature (if applicable): visible dispersion, chromatic effects, band-specific artefacts
5. Comparison delta (if reference given): what changed, better or worse, any regressions

Examples

/visual-check tests/reference/disney_contact_sheet_post_compensation.png
/visual-check test_results/optix_before.png test_results/optix_after.png
/visual-check benchmarks/showcase/output/cornell_spectral_512spp.png

Note

This is a qualitative pass — use it to quickly flag obvious problems or confirm a fix. It does not replace the numerical gates in the hardware verifier. When something looks wrong here but the numbers pass, escalate to gate-failure-reviewer.