3D Video Mapping using POVRay

[Chris B]

Not quite sure if this is the right section. I downloaded POVRAY today (http://www.povray.org) in the ongoing quest for the perfect page turn POVRay is something I used to play with years ago. Anyhow I worked out how to place an image map onto an object in the ray tracer and animate this. At the moment I've just mapped onto a torus - which I know can be done in other ways. My goal is to map to more useful or interesting shapes - say a flag or page or similar. Here's what I have so far using VMS 10 and POVRAY 3.7 rc3:

[wmvvideo]http://muvipix.com/cpg/albums/userpics/10215/torus_map.wmv[/wmvvideo]

Basic technique (deep breath) - export video as a series of images to use as "image maps" on POVRAY with the frame number for each frame then export back out a series of images to import as an image series into Vegas. If I get something more useful I'll come back with detailed instructions.

You could potentially use this to do some of the fancy 3d compositing that after effects manages - although it would be a lot more manual.

[Steve Grisetti]

Wow! That's a cool effect, Chris!

[Dave McElderry]

Wow - that's wild! Not sure where I'd ever use it.

[Jayell]

Not sure I follow the details .. but very cool looking.

[Chris B]

OK - this is not quite the same thing but it's using the same tools. A small title animation using POVRay. It's not that clear on the video but the text is made of Orange glass with a soft shadow including simulated caustics.

[wmvvideo]http://muvipix.com/cpg/albums/userpics/10215/muvipix_text%7E0.wmv[/wmvvideo]

I think there's potential in this program. I've got some more seroius 3d stuff that I'm going to try. Anyhow - here's the source POV file for the title above.

Code: Select all

  #include "colors.inc"   
  #include "textures.inc"
   
   global_settings {
   photons {
     count 100000
     autostop 0
     jitter .4   } }
 
  camera {
    location <0, 0, -6>
    look_at  <0, 0,  0>  }
         
plane { z,1
pigment { colour White
}  }
       
  light_source { <2.5-clock*4, 3.5-clock*7, -6+clock*2> colour White 
    area_light <0.25, 0, 0>, <0, 0.25, 0>, 5, 5
    adaptive 1
    jitter
     photons {
     refraction on
     reflection on   }  }

  text {
    ttf "cyrvetic.ttf" "Muvipix.com" .3, 0   
    translate x*-2.5
    texture { Orange_Glass }
    photons{
  target
  reflection on
  refraction on
  collect on    } }

And this in the accompanying ini file use to render it.

Code: Select all

; Persistence Of Vision raytracer version 3.5 ini file.
Antialias=On
Antialias_Threshold=0.3
Antialias_Depth=3

Input_File_Name=text.pov

Output_File_Name=muvipix

Initial_Frame=0
Final_Frame=89

Initial_Clock=0
Final_Clock=1

[momoffduty]

I like the sparkle to the glass. Is this a stand alone program?

[dlgilbert]

Oh, I'll bet you could have all KINDS of fun with that program! Very cool!

[Chris B]

Yes, it's stand alone - although there are lots of support programs.

I've never really played with animation with this before - I think there's a lot of potential with titles. Because it's a Ray Tracer it does things like glass and mirrors and shadows very well.

Here's the "hall of fame" of user created images.

http://hof.povray.org/

[Chris B]

Here's another slightly higher resolution example. Shows a bit more detail. I've also tweaked the font, colour and camera movement slightly. (the ivdeo is actually 640x480 - but I can;t make it appear in the post - Help Ron?). Download for a better look in the meantime.

[wmvvideo1]http://muvipix.com/cpg/albums/userpics/10215/muvipix_text_2.wmv[/wmvvideo1]

And the .pov file:

Code: Select all

  #include "colors.inc"   
  #include "textures.inc"
   
   global_settings {
   photons {
     count 100000
     autostop 0
     jitter .4   } }
 
  camera {
    location <0, 0, -6+clock/2>
    look_at  <0, 0,  0>  }
         
plane { z,1
pigment { colour White
}  }
       
  light_source { <3.5-clock*6, 5-clock*11, -6+clock*2> colour White 
    area_light <0.25, 0, 0>, <0, 0.25, 0>, 5, 5
    adaptive 1
    jitter
     photons {
     refraction on
     reflection on   } 
}

  text {
    ttf "JOKERMAN.TTF" "Muvipix.com" .3, 0   
    translate x*-3.15
    texture {
    NBglass
    pigment{ gradient x
    color_map {
      [0.00 color rgbf <1,0,0,0.8>]
      [1 color rgbf <0,.25,1,0.8> ]
      }
      scale 6.5
      translate -3.15
 }      }
    photons{
  target
  reflection on
  refraction on
  collect on    }
}

[Paul LS]

Some incredible work in the "hall of fame"... amazing

[Chris B]

OK - next attempt.
[wmvvideo1]http://muvipix.com/cpg/albums/userpics/10215/POV_Video.wmv[/wmvvideo1]
This is a scene using POVRay and three imported videos from the background collections. Not quite as I'd hoped but reasonably pleased with the results.