Hey Chris,
I was just guessing as to certain "possible" blend modes since a pixelTANGO user asked me about it. (and its one of the few things that Gem will not do that aftereffects can (and shadows, but I'm not asking for that!).
I was not aware of "frame" is it in the gemwin help?? suprised I missed it. (duh!)
Ok so what do these blending modes actually do?
GL_ ZERO ONE DST_COLOR SRC_COLOR ONE_MINUS_DST_COLOR ONE_MINUS_SRC_COLOR SRC_ALPHA DST_ALPHA ONE_MINUS_DST_ALPHA ONE_MINUS_SRC_ALPHA SRC_ALPHA_SATURATE CONSTANT_COLOR ONE_MINUS_CONSTANT_COLOR CONSTANT_ALPHA ONE_MINUS_CONSTANT_ALPHA
Add, subtract, multiply could be pretty useful... there are the pix_ objects for these operations but that is less flexible (texture only) and perhaps will end up as shaders in the future?
You can probably enable any of those modes listed above using the gemGL wrapper objects. That's the best use for those objects: accessing really advanced features without coding a new object.
I have still not had a chance to look at these, I'll take a look.
I just thought I'd put it on the map, but I'd much rather get support to load alpha channels from files, and that point-in-volume test.
Thanks for taking the time to anser chris, did you see my vertex array requests on source-forge?
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