Roman Haefeli a écrit : > On Fri, 2008-10-17 at 18:25 +0200, cyrille henry wrote: >> use shader! >> you'll have to make your own shader, but adjusting color saturation is quite >> easy. >> see gem documentation/10.glsl/01.simple_texture > > it doesn't seem to work on my box. no matter, what shader i load, the > texture looks the same. when i click on one of the shader loaders, i get > the following messages: > > [pix_texture]: using mode 0: TEXTURE_2D > linking: link 5.60519e-45 4.2039e-45 > linking: link 5.60519e-45 7.00649e-45 > > > and > > > [pix_texture]: using mode 1: TEXTURE_RECTANGLE > linking: link 2.8026e-45 7.00649e-45 > linking: link 2.8026e-45 4.2039e-45 > > > > no change in the picture whatsoever.
both shader are doing the same. i.e : almost nothing! the images should only be a little bit darker than without the shader. > > also the ID number is out of the range in order to be represented > properly: > > 2.8026e-45 it's not displaying correctly, but it is computed correctly. > > i remember there was a discussion once about this on the gem-dev list. > is there a fix for that? yes, there was a bug there, but it was corrected. the value you have show that it's working. > > i am on ubuntu hardy with an nvidia Quadro NVS 140M and i very much > hoped, that i have now opengl 2.x. glxinfo: > > OpenGL version string: 2.1.2 NVIDIA 169.12 > > do you think, shader stuff is supposed to work on my box? if so, what > can i do to make it work? i'm no specialist in nvidia card, but it look like it's shader compliant. everything else look good, so i suspect it is working. if you change color = color * 0.5; with : color = color * 0.1; and reload the shader, the images should be darker. (change in texture.frag) could you also try the other examples? Cyrille > > thanks > roman > > > > > > ___________________________________________________________ > Telefonate ohne weitere Kosten vom PC zum PC: http://messenger.yahoo.de > > > _______________________________________________ > Pd-list@iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list