I was creating some special effect objects with some cheap geometry and textures with alpha. All my effects worked with the frame rate accept for my last one. It involved two objects with two alpha textures over lapping because the objects were together as one.
I remade the effect with all geometry, which created a higher vertice count, but the all geometry effect was much faster than the original that used alpha. In fact, the two or three fps that drops from the effect is probably caused by the loading and destroying of resources on the fly, which is almost unavoidable when making effects.
Are all geometry effects with no alpha faster than an effect that uses less geometry and alpha textures.
or
Is it the fact alpha that overlaps is an fps drinker? So modern day graphic cards are not handling transparency any better?