[GEM-dev] valid FSAA levels

[patrick]

hi,

i am not sure, but i think FSAA is only for NVIDIA (maybe you should 
specify this in the documentation). also some time ago, Cyrille sent an 
email concerning a problem with FSAA:

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hello,

with latest (v177 or 180) nvidia proprietary driver under linux, anti-aliasing did not work.

i don't really understand why, but removing the line 144 : 
setenv("__GL_FSAA_MODE", svalue, 1); 
from Base/GemWinCreateXWin.cpp does solve the problem : 
it allow nvidia-setting to control the application aliasing.

it look like a bug in nvidia driver, but it would be nice if Gem could have a workaround.
i propose changing :
setenv("__GL_FSAA_MODE", svalue, 1);
to : 
if (fsaa!=0)  setenv("__GL_FSAA_MODE", svalue, 1);

that should not harm anyone.

any objection?

Cyrille

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still without answer.
pat