Rotating Cube - Find selected Part

OpenGL OpenGL: Basic Coding
1

I got an arbitrarily rotating Cube that displays random images.
One image on each part of 6.
The user selects with the mouse one of the images.
How can I find out which part of the cube (top,bottom,…)
is selected.
Maybe someone can point me in the right direction.

2

The easiest way you need to do is draw six different polygons.
And implement openGL based selection methods for picking.

3

Thanks for your answer.
I admit I dont now much about openGl.
I found NeHe Lesson 32 is about selection.
Looks pretty complicated compared to standard gui programming.

4

Standard gui programming don’t do hardware-accelerated texture mapped cubes :slight_smile:

If you are uncomfortable with low level programming, try to find a framework which already implements the features you want.

5

Or maybe as an answer:

	glSelectBuffer(BUFSIZE,pointer);
	glRenderMode(GL_SELECT);
	glInitNames();
	glPushName(0);
            glLoadName(0);

Those are the methods to look at.