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Virgus

GL_COMPILE_AND_EXECUTE

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Hi all, I have to render a scene 2 times so I used opengl''s lists this way:
if(LIST == -1) LIST = glGenLists(1);
glNewList(LIST, GL_COMPILE_AND_EXECUTE);
   // render scene...
glEndList();
// other lines...
glCallList(LIST);
 
So, here is the question: is this use of lists correct? Are there other ways to do it? Thanks

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It is not recommended to use GL_COMPILE_AND_EXECUTE, use GL_COMPILE.

And another thing: if you are drawing your stuff only 2 times display lists will slow down your program, because compiling is slow.

-Lev

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But:

1) if I use GL_COMPILE then I have to render the scene 3 times
per frame !
2) compiling & executing is at least as fast as direct mode (red
book)

Why you say that GL_COMPILE_AND_EXECUTE is slow ? What
alternative(s) do you suggest ?

Thanks

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