Cinematic's colour tint painted the whole screen opaque white for as long as its
CineMode ran: `srgb(255,255,255)` across the world with the UI still drawn on top
of it, 16.8 s of it in grom's 2026-11-02 recording, starting the instant he picked
a profile. Three faults on the one path from the addon's call to the pixel, each
of them enough on its own.
`SetBlendMode("MOD")` parsed, answered `GetBlendMode` and then drew as straight
alpha. One pipeline served BLEND and ADD — the shader emitting `(rgb·a, a)` or
`(rgb·a, 0)` into a single `(One, OneMinusSrcAlpha)` state — because no scalar
source alpha can stand in for a per-channel destination factor, and the mode had
no caller worth a second pipeline. It had one: nine of the addon's ten tint
presets are MOD (`Tint.lua:21`), and a MOD colour is built to be multiplied —
`1 − (1 − c)·strength` at **alpha 1**, white at strength 0 — so drawn with alpha
instead it is an opaque near-white quad over UIParent. MOD now keys its own
pipeline, `(Dst, Zero)` with the destination's own alpha kept, off the same
`0x70c190` table the world's Mod batches already read; the shader returns the
multiplier un-premultiplied, since neither alpha appears in that formula, and runs
no longer merge across the flag.
The extract read `fill.or_else(|| gradient.map(midpoint))`, so a region that set
both drew the fill and dropped the gradient. They are not alternatives:
`<Gradient>` writes the four vertex colours (`+0xb8`, `0x77304d`), which
`loader/regions.rs` already reads as "unlike `<Color>` it tints the art". The tint
is exactly that shape — `SetColorTexture(1, 1, 1, 1)` once, re-gradiented a few
times a second — and so is its vignette, whose four edges were drawing as opaque
white bars.
And `SetGradient` took only 1.12's six loose numbers. This client answers
`CreateColor`, so an addon that feature-detects takes retail's colour-object form
and never tries the numbers; the two objects coerced to six zeros through
`as_f32`, the call **succeeded**, and the `pcall` that was the feature test
(`Tint.lua:546`) reported it understood. Both spellings now read a colour object
when the first stop is a table.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SgstFWtn1RxEJ5kVrpgYwn
gromandClaude Opus 5
aa2ee515aa