[glam-devel] OpenGL Display Lists

[Chetan D. <che...@as...>]

Dear All,

On a opengl discussion board, I recently found a post saying 
GL_COMPILE_AND_EXECUTE
slows down the rendering.

What we genereally do (in glam and my application) is:

void render()
{
    if(!mDisplayListId)
    {
        mDisplayListId = glGenLists(1);
        glNewList(mDisplayListId, 
GL_COMPILE_AND_EXECUTE);//<-----------------------------
        .......
        glEndList();       
    }
    else
        glCallList(mDisplayListId);
}

If the above post is correct, we should make some changes, like having a 
separate subroutine
for just compiling the display lists (using GL_COMPILE), and only 
calling them in the 
render() function.