Drawing grid


Can anyone explain to me how can one draw a grid with different cells colors. I’m trying to implement Game of Life, and I need to draw a grid with white/black color for each cell.

You could simply draw a quad for each cell.
Something like

glVertex2f( x, y ); glVertex2f( x+cellSize, y );
glVertex2f( x+cellSize, y+cellSize ); glVertex2f( x, y+cellSize );

will draw you a cell in the z=0 plane.
There are quite a few good tutorials on the web showing how to do this.