I got some problem getting point sprites to work with vertex programs. Everything works fine without them but when I enable them the point sprites disappear.
Even a trivial vertex program like:
!!ARBvp1.0 OPTION ARB_position_invariant ; MOV result.pointsize, 10; MOV result.color, 1; END
Doesn’t work (similar results without the posinv and doing the transform manually)
Is there any special state or limitations I need to be aware of (the specs don’t seem to mention any…)