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Ell authored
When the source alpha is zero, we don't calculate the blended color, so `comp[b]` can be infinite or NaN, in which case the expression `in[ALPHA] * (comp[b] - layer[b])` is NaN, rather than the expected value of zero.
4c3a772c
When the source alpha is zero, we don't calculate the blended color, so `comp[b]` can be infinite or NaN, in which case the expression `in[ALPHA] * (comp[b] - layer[b])` is NaN, rather than the expected value of zero.