Re: [pygame] Collision Detection with Pygame/OpenGL Surfaces

[Michael George <mdgeorge@xxxxxxxxxxxxxx>]

In fact I was just reading a bit more on picking since I was a little 
curious myself and I came across this tutorial (also in C) which 
describes both approaches:

http://www.lighthouse3d.com/opengl/picking/

--Mike

Jason Massey wrote:
> Doesn't OpenGL have something similar to the surface functions?
>
> A quick google turned up:
>
> http://gpwiki.org/index.php/OpenGL_Selection_Using_Unique_Color_IDs 
> <http://gpwiki.org/index.php/OpenGL_Selection_Using_Unique_Color_IDs>
>
> Admittedly it's in C but the OpenGL functions should all be very similar.
>
>
> On 8/2/07, *Ian Mallett* < geometrian@xxxxxxxxx 
> <mailto:geometrian@xxxxxxxxx>> wrote:
>
>     Hi,
>     I'm making a program for visualizing molecules.  Each atom will be
>     selected by the mouse.  Since I know the color of each atom, my
>     idea for detecting if a mouse is over one is as follows:
>
>     1: get the color of the pixel the mouse is over
>     2: if the color is __ select the atom with that color. 
>
>     The problem is, pygame has issues with OpenGL surfaces and the
>     call to Surface.get_at() declares I can't call an OpenGL surface. 
>     Is there any way to get around this? 
>     Thanks,
>     Ian