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 CAD / Ray-Tracing / 2068
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Subject: 
Re: Simple POV-Ray Question - Perspective
Newsgroups: 
lugnet.cad.ray
Date: 
Fri, 23 Jan 2004 17:36:39 GMT
Viewed: 
1893 times
  
In lugnet.cad.ray, Kevin L. Clague wrote:
In lugnet.cad.ray, Shaun Sullivan wrote:
Hi All,

I should know this ... what's the trick for turning off "perspective", if you
will, so that you can do a straight-on side view?  That is, to remove the
"vanishing into the horizon" effect?

ISO views, is that what it's called?  Ugh ...

Using orthographic does not always work.  You can get the same effect by seeing
the camera angle to 0.1

Don't you then have to move the camera a ways back to get all your objects in
the image compared to larger camera angles?

This is what I tend to do, long ways away, small canera angle (anaogous to
"telephoto" in real photogs, the images there have very little perspective
compared to normal which in turn has less than "wide angle").

The downside of this is that if you are using fog or mist, your primary scene
objects may tend to grayout a bit.

And you still have SOME perspective, it's not completely an isometric rendering.

But I agree, if you can't get orthographic to work for you, try this.



Message has 2 Replies:
  Re: Simple POV-Ray Question - Perspective
 
(...) I've run into this problem, and my caveman-sophistication led me simply to translate the object a little to put it back in line with the look_at coordinates. Even so, I often have to change the "PCT" value to 5 or 10 to accommodate all of my (...) (21 years ago, 23-Jan-04, to lugnet.cad.ray)
  Re: Simple POV-Ray Question - Perspective
 
(...) L3P automatically moves the camera further away, please see (URL) is currently the way to go. I placed the "//orthographic" line in the camera setting only as a convenience if you want to experiment with that camera - you will have to adjust (...) (21 years ago, 26-Jan-04, to lugnet.cad.ray)

Message is in Reply To:
  Re: Simple POV-Ray Question - Perspective
 
(...) Using orthographic does not always work. You can get the same effect by seeing the camera angle to 0.1 Kevin (21 years ago, 23-Jan-04, to lugnet.cad.ray)

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