Question

I am rendering a chess board, using 2 different textures. One for the black squares and one for the white squares. However instead of each different square having their own texture, they all take on the last texture that I bound calling glBindTexture(GL_TEXTURE_2D, id);.

This is my approach:

glEnable(GL_TEXTURE_2D);    
glBegin(GL_QUADS);
    // square 0, 0 ( front left )
    glBindTexture(GL_TEXTURE_2D, textureBlackSquare->texID);
    glNormal3f(0, 1, 0);
    glTexCoord2f(0, 0); glVertex3f(-8.0, 0.5,  8.0);
    glTexCoord2f(1, 0); glVertex3f(-6.0, 0.5,  8.0);
    glTexCoord2f(1, 1); glVertex3f(-6.0, 0.5,  6.0);
    glTexCoord2f(0, 1); glVertex3f(-8.0, 0.5,  6.0);
glEnd();

glBegin(GL_QUADS);
    // square 1, 0        
    glBindTexture(GL_TEXTURE_2D, textureWhiteSquare->texID);
    glTexCoord2f(0, 0); glVertex3f(-6.0, 0.5,  8.0);
    glTexCoord2f(1, 0); glVertex3f(-4.0, 0.5,  8.0);
    glTexCoord2f(1, 1); glVertex3f(-4.0, 0.5,  6.0);
    glTexCoord2f(0, 1); glVertex3f(-6.0, 0.5,  6.0);
glEnd();

When I run this code, both quads have the white texture bound. How do I get each quad to have its own texture?

Answer 1

You cannot call glBindTexture in the middle of glBegin/End. You can only call vertex functions within begin/end.

Also, why don’t you just make a single texture as an 8×8 checkerboard, and then just render a single quad to draw the whole checkerboard?