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Subject: 
Re: 3D Myst III viewer of a castle
Newsgroups: 
lugnet.cad.mlcad, lugnet.cad
Date: 
Fri, 25 Jan 2002 03:42:05 GMT
Viewed: 
3416 times
  
In lugnet.cad.mlcad, Lars C. Hassing writes:
Chuck Sommerville wrote...
Here is the POV camera I used:

camera {
  spherical
  location <0,0,0>      // position
  look_at  <1,0,0>      // view
  h_angle 360           // horizontal degrees
  v_angle 180           // vertical degrees
  rotate <180, 0, 0>
  translate <0,-95,0>
}

Just delete the L3P generated camera and insert the spherical one.
The Rotate <180,0,0> was added because it was rendering upside down.
Unfortunately, this also mirror flips the image from the model, but who can
tell.  There is probably an easy POV fix for right/left handedness.
The translate <-320,-239,0> command was how I positioned the camera.  This
was different for each location.
I rendered with the command line options -l to use my model lights (light.dat)
and -h600 -w1200 for the size image I wanted.  It also looks better rendered
aliased, but I was in a hurry, and just wanted to prove my point.

The web page for the viewer has very good documentation for how to use the
viewer.  By the way, you can also use +/- to zoom in and out.

The other thing to do is to render it so that a hot spot doesn't cross the
seam at the edges.

If I had anything to ask of L3P to help this, it would be a command line
option to suppress the camera.

Wow, this is cool.
Would you like just an option to suppress the camera,
or some options to support spherical, h_angle, v_angle ?
(are h_angle always 360 and v_angle 180?)
Can you avoid the translate by using location/look_at?
Can you avoid rotate by using sky ?

Yes, as I recently suggested here in another thread:

  http://news.lugnet.com/cad/?n=7170

"... I think a comand line option of -ci<filename> to include a premade
POV camera file might also benefit that technique."

This would make all sorts of things possible, including things we
haven't even thought of yet!

Of course I'd still like most, if not all of my other suggested camera
options implemented. ;-)  I just haven't gotten around to composing
suitable replies yet...

Don



Message has 1 Reply:
  Re: 3D Myst III viewer of a castle
 
(...) This actually looks like the best solution to me. It gets around lots of unforseen problems. For instance, when I originally did the scene on the stairs, I tilted the camera by looking up the stairs with the look_at parameter. But that caused (...) (23 years ago, 25-Jan-02, to lugnet.cad.mlcad, lugnet.cad)

Message is in Reply To:
  Re: 3D Myst III viewer of a castle
 
Chuck Sommerville wrote... (...) Wow, this is cool. Would you like just an option to suppress the camera, or some options to support spherical, h_angle, v_angle ? (are h_angle always 360 and v_angle 180?) Can you avoid the translate by using (...) (23 years ago, 25-Jan-02, to lugnet.cad.mlcad, lugnet.cad)

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