GEM-dev May 2007

gem-dev@lists.iem.at

12 participants
23 discussions

Re: [GEM-dev] multitexture with shader
by cyrille henry 05 May '07

05 May '07

hello, Wesley Smith a Ã©crit : > I'm not sure how this works in GEM, but somewhere you have to call: > > glUniform1ivARB(samplerLocation, multiTexIndex); > > In other words, the texture unit index value you're binding to has to > be passed to the sampler's uniform parameter, otherwise it will > default to 0 and only give you 1 texture. i think this call should be made in glsl_program. well, i'll have to open the source code in order to try to understand. thanks Cyrille > > wes > > On 5/3/07, cyrille henry <cyrille.henry(a)la-kitchen.fr> wrote: >> hello, >> >> i still have problem trying to have multiple texture on a shader to work. >> >> i just adapt the pix_multitexture exemple jamie send month ago on this >> list (see attachment). >> >> my problem is that i can only access to my 1st texture in the shader. >> >> the 2 textures have the same size. >> i've test this patch on linux and osX with the same result. >> >> my shader look like this : >> >> void main() >> { >> gl_TexCoord[0] = gl_MultiTexCoord0; >> // gl_TexCoord[1] = gl_MultiTexCoord1; >> gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex; >> >> } >> >> and >> >> uniform sampler2DRect txtur, txtur2; >> >> void main (void) >> { >> vec4 color; >> color = texture2DRect(txtur, gl_TexCoord[0].st) + >> texture2DRect(txtur2, >> gl_TexCoord[0].st); >> >> gl_FragColor = 0.5 * color + 0.1 ; >> } >> >> >> i'll be very happy if someone could help me. >> >> thanks >> Cyrille >> >> _______________________________________________ >> GEM-dev mailing list >> GEM-dev(a)iem.at >> http://lists.puredata.info/listinfo/gem-dev >> >> >> > >

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multitexture with shader
by cyrille henry 03 May '07

03 May '07

hello, i still have problem trying to have multiple texture on a shader to work. i just adapt the pix_multitexture exemple jamie send month ago on this list (see attachment). my problem is that i can only access to my 1st texture in the shader. the 2 textures have the same size. i've test this patch on linux and osX with the same result. my shader look like this : void main() { gl_TexCoord[0] = gl_MultiTexCoord0; // gl_TexCoord[1] = gl_MultiTexCoord1; gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex; } and uniform sampler2DRect txtur, txtur2; void main (void) { vec4 color; color = texture2DRect(txtur, gl_TexCoord[0].st) + texture2DRect(txtur2, gl_TexCoord[0].st); gl_FragColor = 0.5 * color + 0.1 ; } i'll be very happy if someone could help me. thanks Cyrille

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recent Gem.dll for windows
by geiger＠xdv.org 02 May '07

02 May '07

Hi there, Has anyone a recent binary of Gem thats working well for windows ? The only thing I could find was 0.90-1 and I wanted to use some of the newer features. Thanks in advance, Günter ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.

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GEM-dev May 2007