[Gambas-user] [Gambas3] The static method Gl.SelectBuffer

[Laurent Carlier]

Le samedi 17 novembre 2012 19:01:06 laurent bernabe a écrit :
> Hello : thank you for your answer.
> 
> Ok, I went into the Gambas SVN repository, in the source
> /trunk/gb.opengl/src/GLselectFeedback.c and I noticed the use of an
> internal buffer.
> 
> But I still don't understand how I can get the value stored in the buffer,
> once I left the GL_SELECT mode.
> 
> I've joined my openGL application source files : MMain class, and
> ColoredCube.class.
> 
> In MMain, method screen_Draw(), I tried to get the value of the array
> returned by gl.RenderMode(gl.RENDER), but I get an error, line 37 : Null
> object reference.
> 
> What's wrong with my code ?
> 
> Regards
> 
> Laurent Bernabé
> 

Here a small project based on example 13.3 from 
http://www.glprogramming.com/red/chapter13.html

Hope it can help! Picking wasn't easy to implement; it gaves me 
a headache :)

If you need some functionnality (extensions) in Opengl that you can test, just 
ask, i will see if i can implement them.

Regards,
++
 

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