[PD] [GEM-dev] gl stack underflow

[Matteo Sisti Sette]

Wow wow wow!!!

It seems my underflow problem (now I was getting both underflows and 
overflows) is in some way related to the use of texunits AND 
[gemframebuffer]s.

I still have to understand how exactly the texunit thingie works (the 
"texunit" message to [pix_texture] is not even documented btw), but I 
had been able to use texunits in order to assign textures a "texunit" 
and then refer to these numbers in the shader code to access textures, 
without problems until I began to use them in addition to 
gemframebuffers (without suspecting they could interact).

Well now I have just realized that [gemframebuffer] outputs a message 
like "using texunit N", and I had some messages like this:

[loadbang]
|
[texunit 0(   // or 1
|
[pix_texture]

So I guess I was assigning this texture the same texunit that was used 
by the gemframebuffer; I still have to figure out what it means but I 
guess it is not good.

Removing the texunit messages, now the stack under/overflows seem to 
have disappeared.


Thanks again for your help

m.


-- 
Matteo Sisti Sette
matteosistisette at gmail.com
http://www.matteosistisette.com