Hi Chris,

> The angle value is also used in later code, the create_ray() function in
> render.c for example. I suggest you look at the camera parsing code in
> parse.c for an example.
> I can't really help you more without knowing what you are attempting to
> do.

Thank you for you fast help. The hint with parse.c was valuable.

But one other question: Why is the focal distance negative???

Ciao

Henryk

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