All five party-stage shaders now ported. Each declares its params
declaratively; uniform binding, UI controls, seeded sampling and arc
automation all derive from that one block, so a new scene costs a shader
and a schema and nothing else.
Port changes: LED-grid masks stripped, hardcoded colours replaced with
palette lookups, magic numbers lifted into params. Psychedelic Drift's
internal 15-second scene timer removed — keeping the visuals moving is the
arc driver's job, and it knows where the song's real transitions are.
ParamPanel generates controls from the schema alone and knows about no
specific scene; a hand-written control would be a bug.
Gate 8/8: schemas valid, uniforms accounted for in both directions, all
scenes compile and render, 128 range-sweep frames with no black, blown or
flat results, every param exposed in the UI, edits clamped, presets
round-trip and survive schema drift.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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