View Full Version : Drawing repeated images

09-20-2012, 07:47 PM
I have a series of 3x3 matrices which map a 2d pixel to the screen in a number of places.

I will rotate/mirror/translate the pixels to create a kind of pie chart/symmetrical moving image... (kind of like some music visual programs do?)

How is the best way to implement this with OpenGL pls?

// I am totally new to OpenGL 2D (and only a little less new to OpenGL 3D) //


09-23-2012, 05:21 AM
GL provides the ability to render points, lines, triangles. If you need to learn the basics of rendering and transforming, you should pick up a book or read one online. The Red Book for GL 1.1 is online. There is also the very ancient Nehe site.

If you want to directly avoid the ancient stuff and start using GL3, then look at the links in the Wiki.