On 06/26/2011 04:02 PM, Marina wrote:
> Okay, I'm supposed to construct this 4-mirror apparatus on POV-Ray. Here is the
> drawing from which I'm supposed to do this from:
>
> http://i1003.photobucket.com/albums/af151/mbradar2/povrayforumfigure.png
>
> I have it on the -z axis. It is 4 mirrors.. the squares that are darker are the
> backs of the mirrors, and the squares that are lighter are the fronts - the
> actual reflective surfaces of the mirrors. Light goes in from the left and
> bounces through the mirrors and comes out to the right. This is for physics..
> polarized electrons and all.
>
> Anyway, on POV-Ray, I have four 'boxes' on the -z axis, but I can't figure out
> how to angle them so they look like the picture.. they are more rhombuses in the
> picture, but I can make them look like rhombuses just by changing the camera,
> can I not?
>
> I have one square near the area of<0,0,-13>, lying flat there on the z-plane.
> But I don't want it flat, I want it upright.. however, when I change the
> z-variable of the rotation ( like<0,0,45>  for 45 degrees), it doesn't just
> angle it, it moves it away from its original spot.
>
> How do I angle it without it moving away? That's my main question.
>
> Or is there a better technique to constructing those 4 mirrors? I'm having a
> very difficult time with this since I just started using this program yesterday
> and my boss was hoping to have this done in a couple of days. He knows I don't
> know the program and it's not super important that he have this done because he
> has a bare-skeleton version already, but he'd like a cool 3D version since he's
> submitting a scientific paper, and he doesn't know anyone who uses this program
> so I'm his last resort. So if anyone can help me out with a sort-of-quick (1 to
> 2-day max) way to construct those mirrors, I would be eternally grateful.
>
>
try building everything at the origin ... angle them properly, /then/ 
translate them to their final resting position

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