VMD-L Mailing List

From: Barry Isralewitz (barryi_at_ks.uiuc.edu)
Date: Thu Dec 14 2000 - 11:02:29 CST

Hello,

>
> You can probably "fake" an orthographic camera by moving the camera
> position 10 times farther away from the molecule, and then increasing
> its "zoom" (or decreasing the size of the image plane) by a factor of
> ten. This isn't really an orthographic view, but it significantly
> reduces the apparent perspective, using factors larger than 10 reduces
> the perspective even further.

        I've done just this, with povray, for VMD images, the result
was about perfect. I think I got pixel-accurate (or close to pixel-accurate)
agreement for identical aligned objects across the field of view..
Contact me if you're having troubles with zoom vs. camera distance;
I'll try to unearth the old povray files...

                                        Barry 

-- 
Barry Isralewitz     Beckman 3121    Theoretical Biophysics Group, UIUC  
Office Phone: (217) 244-1612    Home Phone: (217) 337-6364
email: barryi_at_ks.uiuc.edu      http://www.ks.uiuc.edu/~barryi