Re: R: R: [Plib-users] Grrr.... I only get a black screen

[Peter P. <pet...@st...>]

Paolo Leoncini wrote:
> Peter Poulsen wrote:
> 
> 
>>Thanks alot! I finally got it working.
> 
> 
> Nice to have you on board!
> 
> Perhaps the problem was in the lighting. The quad normal is in the same
> direction as the light (y-), so enabling lighting produces a black color
> over black background. As counterproof try setting the clear color to
> non black, re-enable lighting and see if the quad appears black.
> Furthermore remember that SSG coordinate system is z-up (x-right,
> y-into-the-screen) whilst OpenGL is y-up, so keep it into account when
> setting light and camera positions in the world.
> 
> Greetings -
> 

I tried re-enabling light and set the clear color to blue. It turn out that 
it wasn't that, but I tried playing a little with the glViewport command, 
it definitely has something to do with it. As it is placed in my previous 
mail, it works fine.


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