Discussion area about developing or extending OGRE, adding plugins for it or building applications on it. No newbie questions please, use the Help forum for that.
So, since I had to look this stuff up anyway because of a recent thread, I decided to sneak in support for Alpha to Coverage before the Shoggoth deadline because it wasn't hard to do. You can now enable Alpha to Coverage on passes that are typically doing alpha rejection using the following directive:
A picture is worth a thousand words; the leaf on the left is without alpha to coverage, the one on the right is with alpha to coverage enabled. The MSAA setting is 8x.
Pretty handy - alpha to coverage is officially a Dx10 feature, but there are hacks available for ATI and NVIDIA on Dx9, and there's a common extension in GL, so all rendersystems support this now.