On Mon, 2006-03-06 at 20:28 +0100, Antonio Bleile wrote:
> Hi,
>
> I managed to set-up a skybox with the
> standard camera of the SimpleSceneManager.
> When I use my own MatrixCamera the
> background is black. Here's some of
> my code:
>
> skyBack = SkyBackground::create();
> // etc...
>
> camera = MatrixCamera::create();
>
> Matrix modelViewMatrix;
> osg::MatrixLookAt( modelViewMatrix, 0, 0, 0, 0, 0, -1, 0, 1, 0 );
>
>
> beginEditCP(camera);
> camera->setModelviewMatrix(modelViewMatrix);
> camera->setProjectionMatrix(m); // the projection matrix is ok!
> endEditCP(camera);
The SkyBackground uses the near and far values from the camera to
calculate the scale of the box/sphere. Given that you don't need it for
the MatrixCamera you probably don't set it. But you do need it to
calculate the matrix, so the information should be somewhere in your
system.
Hope it helps
Dirk
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