[GEM-dev] Re: [GEM-cvs] Gem/src/Pixes pix_texture.cpp,1.29,1.30

[IOhannes m zmoelnig]

james tittle wrote:
> On Apr 27, 2005, at 5:24 AM, IOhannes m zmölnig wrote:
> 
>> Update of /cvsroot/pd-gem/Gem/src/Pixes
>> In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv7701
>>
>> Modified Files:
>>     pix_texture.cpp
>> Log Message:
>> set "state->texture" to "2", when using rectangle textures
>> don't overwrite "m_repeat" with "GL_CLAMP" when doing
>> rectangle-textures, as they will ignore that flag anyhow
>>
> 
> ...hmm:  just tried this, and it screws up osx texturing (makes a whole
> bunch of kinda sub-images:  maybe not such a bad effect?)...and now
well, that is how Gem used to be until the rectangle-textures dropped in ;-)
seriously, could you describe the effect a bit more detailed ? (how do
the "kinda sub-images" look like ??)
does it happen all the time or just with [pix_coordinate] ?


> looking at it, I'm not sure how these  state->texture flags are supposed
actually it was just a boolean flag that indicates for downstream
objects whether there is a texture present or not.
my recent changes are just to make the bistate into a tristate to
differentiate between normalized textures and rectangle textures (which
behave different when it comes to texture-coordinates)

> to work?  In any event, it also underscores how complex this file has
> become :-\

yes, it was ugly.
probably we really should kick out at least all the code that is for
openGL<1.1; i cannot imagine any platform that is still in that era. (it
might make porting to z80 harder though).

> 

and the window handling would need a re-write too (i mean all those
constant context vs. used context thing is just there to make it work
with those voodoo2-cards 3dfx used to build in the mid-90ies; would it
be arrogant to tell those people that their cards will not be supported
by future versions of Gem ??)


mfg.ad.sr
IOhannes