I currently am experiencing very slow performance by iterating through quad triangle strips and drawing each one separately, so I would like to batch all of my rectangles into one single draw call.
Looking around, it seems the best way to do this is to simply occur the overhead of duplicating vertices and using GL_TRIANGLES instead of GL_TRIANGLE_STRIP, simply drawing two separate triangles for each rectangle.
The problem is that each rectangle can have a different color, and I need to programmatically change the color of any of the rectangles. So simply using one GL_TRIANGLES call does not do the trick. Instead, it looks like I'll need to somehow index color data with my vertex data, associating a color with each rectangle. How would I go about this?
Thank you!
