FA-10719 / Rendering state / Member archive
Blend state separate alpha · case 04
The RGB blend factor is reused for a separately configured alpha factor.
Case contract
Apply independent normalized scalar blend factors to one RGB channel and the alpha channel.
Why this case matters
A deterministic software graphics stage with explicit channel and coordinate conventions; no hardware, device profile or API behavior is inferred.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| fixture 1 | [0.25, 0.25] | [0.25, 0.5] | Failed |
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