"Chris B" <nom### [at] nomailcom> wrote in message 
news:4791d4bc@news.povray.org...
>
> "Nekar Xenos" <nek### [at] gmailcom> wrote in message 
> news:47919cc8@news.povray.org...
>>I think this has been mentioned before, but I can't find the post. I'm 
>>trying to fit objects' bounding box exactly to screensize. Can anyone 
>>please tell me what I'm missing?
>>
>> camera { orthographic
>>  location  CamPos
>>  right (Max-Min).x
>>  up (Max-Min).y
>>  look_at  CamLook
>> }
>>
>
> That should be
>  right x*(Max-Min).x
>  up y*(Max-Min).y
>
> It took me quite some looking and head scratching to spot that one. :-)
>
> 'up' and 'right' are vectors and you're using a float (i.e. just the x 
> dimension of the difference between the Max and Min extents of the 
> object). This gets automatically expanded to a vector with equal values 
> for x, y, and z, so you need to multiply by the appropriate vector (e.g. 
> 'x') to get a 3D vector with just the 'x' component being '1' and the rest 
> being '0'.
>
> Regards,
> Chris B.

Thanks !


-- 
-Nekar Xenos-

Post a reply to this message