hi,
since two days i m pondering on this problem.
i have 2 machines:
1) debian testing with old mach64 and experimental dri drivers 2) debian testing with nvidia GF4200Ti drivers 1.0-7174 headers installed and gem compiled with them
both run latest gem-cvs
the attached patch is a texture feedback with pix_alpha in a manner that black becomes alpha.
this works fine on the mach64, but not on the nvidia. see scrrenshots at: http://randomseed.org/mach64.gif http://randomseed.org/nvidia.gif
if u exchange pix_snap with pix_snap2tex then everything works as desired except on can not use pix_alpha anymore as the captured image is already textured.
anybody an idea what could be the reason ?
ps: on nvidia an image on the square appears when one sets the pix_coordinate parameter over 230, but it is a single feedback and the pix_alpha disappears in a certain area.
ps2: additionally creating the window results on both machines in: error Gem: Someone sent a bogus pointer to copy2Image error Gem: pix object [pix_alpha] cannot handle YUV image
isnt native colorspace rgba ?
thx for your help in advance
erich