So everything in this tutorial makes sense but I''m having trouble adapting one thing to my needs. In this chunk of doMesh2TexelUnits : // Front Face n[0]=0.0f; n[1]=0.0f; n[2]=1.0f; s[0]=1.0f; s[1]=0.0f; s[2]=0.0f; t[0]=0.0f; t[1]=1.0f; t[2]=0.0f; for (i=0; i<4; i++) { c[0]=data[5*i+2]; c[1]=data[5*i+3]; c[2]=data[5*i+4]; SetUpBumps(n,c,l,s,t); glMultiTexCoord2fARB(GL_TEXTURE0_ARB,data[5*i], data[5*i+1]); glMultiTexCoord2fARB(GL_TEXTURE1_ARB,data[5*i]+c[0], data[5*i+1]+c[1]); glVertex3f(data[5*i+2], data[5*i+3], data[5*i+4]); } s and t are assigned based on the assumption that the object is a axis aligned cube. How should I get s and t for some random triangle out in space?

Vectors n, s and t form TBN matrix. You can find some info how to calculate it on www.opengl.org forums. Basicly s and t follow texture coordinats of your texture mapping.

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