[PD] [GEM-dev] gl stack underflow

[IOhannes m zmölnig]

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Matteo Sisti Sette wrote:
> IOhannes m zmölnig escribió:
>>
>> use rectangle textures ([rectangle 1( to [pix_texture]).
>>
> 
> But the help patch for pix_texture says:
> 
> "Inlet 1: rectangle 0|1 : use rectangle-texturing when available
> (default=1)"

hmm, i think this is wrong.
rectangle is enabled by default on osx, but not on the other platforms
(cannot remember why now; but i guess it made some problems)

> 
> So sending [rectangle 1( to it should have no effect since it is the
> default value (if available; if not then I couldn't activate it).

see above.
with rectangle textures your texcoords should be 0..width-1 and
0..height-1 (rather than 0,,1); don't ask me why; i think it's one of
the more stupid decisions of the ARB.

> Indeed with [pix_texture] I have no problem using non-power-of-two-size
> textures, the question is how to use them in a shader.....

you don't have problems because Gem tries to take care of everything.
with shaders you somehow circumvent Gem's trickery, so it you have to
manually take care.

fgmasdr
IOhannes
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