Assignment 3; Textures Very Imp Links

Use glEnable(GL_TEXTURE_2D);

GPU Programming Course http://www.evl.uic.edu/aej/594/

For the Multi Texturing refer to 

http://www.clockworkcoders.com/oglsl/tutorial8.htm

glActiveTextureARB(GL_TEXTURE0_ARB);
glBindTexture(GL_TEXTURE_2D, texture1);
glEnable(GL_TEXTURE_2D);
glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
glTexEnvf (GL_TEXTURE_ENV, GL_COMBINE_RGB_EXT, GL_REPLACE);

glActiveTextureARB(GL_TEXTURE1_ARB);
glBindTexture(GL_TEXTURE_2D, texture2);
glEnable(GL_TEXTURE_2D);
glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
glTexEnvf (GL_TEXTURE_ENV, GL_COMBINE_RGB_EXT, GL_INCR);

http://www.evl.uic.edu/aej/594/lecture04.html
http://www.research.rutgers.edu/~sueda/428Fall2005/proj3.html

Texture Rectangle
http://www.opengl.org/registry/specs/ARB/texture_rectangle.txt

The Dominick Page
http://www.mathematik.uni-dortmund.de/~goeddeke/gpgpu/tutorial.html
http://www.mathematik.uni-dortmund.de/~goeddeke/gpgpu/saxpy_glsl2.cpp
http://code.google.com/p/matpix/source/browse/trunk/src/helloGPGPU.cpp