[GEM-dev] multitextureTest

[james tittle]

hey ya'll,

...a coupla things here:

1.  Iohannes had committed a "fix" to [pix_texture]'s  
setUpTextureState() that caused me weirdness with non-power of two  
textures (they came out looking like [pix_refraction], but it didn't  
affect power of two textures...simple enuff to fix by switch back to  
GL_CLAMP_TO_EDGE, but it makes me wonder why (...and are...) we  
correctly setting up textures to begin with?  I've since added an  
assignment to the constructor that automatically sets m_textureType  
to GL_TEXTURE_RECTANGLE_EXT if defined...

2.  attached is a patch that shows how to do multitexture (ie.  load  
two movies and then have them blended by the gpu)...atm, it's just  
cobbled together with the glWrappers, but it works!  I see this being  
rolled into a [pix_multitexture], which could be responsible for up  
to 8 textures (depending on gl implementation), and do all sorts of  
blending/replacing/whatever...

...before I go much further with this, I wanted to know if anyone can  
figure out why it doesn't work correctly if we try to texture each  
individual film to it's own [rectangle]:  there winds up being a  
flashing texture on the individual rectangles, but the final  
multitexture looks fine...it's also interesting that it doesn't seem  
to work with GL_TEXTURE_RECTANGLE_EXT, but I don't know if this is  
according to spec or not?

...anyway, lemme know what ya'll think...

jamie

-------------- next part --------------
A non-text attachment was scrubbed...
Name: multitextureTest.pd
Type: application/octet-stream
Size: 11253 bytes
Desc: not available
URL: <http://lists.puredata.info/pipermail/gem-dev/attachments/20050907/10445c80/attachment.obj>