[PD] [Gem] alpha transparency question........
IOhannes m zmoelnig
zmoelnig at iem.at
Thu Jul 8 10:42:43 CEST 2004
chris clepper wrote:
> On Jul 7, 2004, at 6:11 PM, chun lee wrote:
>> But don't you have to switch the rendering off and on again for the new
>> rendering order to get effect? What was in my mind is that say both of
>> cubes are in a global rotation so that sometimes A is in front and other
>> times B is in front.
>> So there is no way to do this in openGL?
> If you are directly feeding in matrix transform info using translate
> then it would be possible to change render order on the fly to do front
> to back rendering.
you don't have to turn off+on the rendering engine to make the rendering
order take effect. it works on the fly.
so for simple objects this should work (see help-file 02/14).
for complex (concave) objects, you are out of luck
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