It’s just a detail: why don’t relational operators evaluate alpha channel (while assignment do)?
a-c
This is very slow response to this but I think that actually is a good question. Perhaps you could post an issue on github I’m sure Kyle (who wrote all that code) would have something to say about that.
way too late for that. issue: https://github.com/openframeworks/openFrameworks/issues/2496 fixed in current master. 