Comment # 17
on bug 93594
from Roland Scheidegger
(In reply to Nicolai Hähnle from comment #16) > > One annoying aspect of this language is that one can reasonably read it as > non-uniformity only being relevant for non-helper fragments. If a pixel quad > is partial covered by the original primitive, and discard is used in a way > that keeps the covered pixels but discard the helper ones, should > derivatives be defined or not? That's a good question... My interpretation would be that derivatives should be undefined in this case if only because otherwise things get even more complex...
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