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 CAD / Ray-Tracing / 1022
1021  |  1023
Subject: 
Re: Stickers for Tiles in POV
Newsgroups: 
lugnet.cad.ray
Date: 
Fri, 9 Nov 2001 05:20:54 GMT
Viewed: 
1392 times
  
Good info. Thanks!

I have two questions about this:

1. Is it possible to get a .gif to work with transparency?

2. I am not totally clear on how you flip an image end for end, or rotate
it. Can you help me out?

Thanks!

Jake

---
Jake McKee
AFOL
LUGNET Member #211

In lugnet.cad.ray, Axel Poqué writes:

Brett Neale <brett_neale@bigpond.com> schrieb in im Newsbeitrag: FvoCpy.x6@lugnet.com...
Hey guys
How would I go about putting a .bmp or other image file into pov to put on a
tile or brick?  I am currently making a pov of the v8 supercar II 8448 and I
need the tiles with the decorations on them that aren't in Ldraw.  Thnx fellas
Brett


Here's an excerpt from a rendering I did recently. The original POV file was
generated with L3P/L3PAO from an existing MPD file, then modified by hand.

I first declared the sticker as an object, so I could use it several times...

#declare US_flag = plane {
z, 0    // plane normal to z at the origin (xy plane)
texture {
   pigment {
     image_map {
       gif "Us.gif"  // insert your image here (can be gif, png, bmp, etc. just chaneg the keyword
       interpolate 2 // smooth it a bit
       once          // do not repeat image across plane
     }
     // image is automatically scaled to x[0...1] y[x...1]
     translate 0.5 * (-x + -y)  // center on the origin, turn upside down, reverse left/right (you might not need this)
                                // you can remove the 0.5 factor if you don't want the origin at the center of the image
                                // don't forget to change the clipping box if you do
   }
  finish { ambient AMB diffuse DIF }
}
clipped_by {box {<-0.5, -0.5, -0.5> <0.5, 0.5, 0.5>}}
bounded_by {clipped_by}
}

Then I inserted the sticker into the appropriate submodel...

#declare flag_dot_dat = union {
// U.S. flag
object { _4095_dot_dat matrix <1-SW/12,0,0,0,1-SW/132,0,0,0,1-SW/12,0,SW/-2.44444,0> matrix <1,0,0,0,1,0,0,0,1,0,56,-50> #if
(version >= 3.1) material #else texture #end { Color366 } }
object { _2335_dot_dat matrix <1-SW/12,0,0,0,1-SW/40,0,0,0,1-SW/54,0,SW/2,SW/2.34783> matrix <1,0,0,0,1,0,0,0,1,0,-64,-50> #if
(version >= 3.1) material #else texture #end { Color7 } }
object { _3794_dot_dat matrix <1-SW/40,0,0,0,1-SW/12,0,0,0,1-SW/20,0,SW/6,0> matrix
<-0.707107,0,0.707107,0,1,0,-0.707107,0,-0.707107,0,68,-50> #if (version >= 3.1) material #else texture #end { Color8 } }

// US flag sticker for part 2335, one for every side
object { US_flag
   scale <-40, -40, 1>     // scale to appropriate size
   rotate 90 * y           // rotate to orientation of part 2335
   translate <2, -44, -20> // translate to surface of part 2335 (origin at the center, so offset is -44,-20 instead of -64,0
                           // if you can't see the sticker in your rendering, you can let it float a bit above the surface
}
object { US_flag          // ditto for back side
   scale <-40, -40, 1>
   rotate 90 * y
   translate <-2, -44, -20>
}
}

I hope this helps (can find renderings from this POV file at
http://home.t-online.de/~axel.pq/msfc/recent.html)

Axel

02.06.2000 - William Jefferson Clinton receives the Karls-Prize
            in Aachen, Germany, 50° 46' 17" N / 06° 05' 18" E
---------------------------------------------------------------
Axel Poque                           email: axel.pq@t-online.de
Aachen, Germany      Internet: http://home.t-online.de/~axel.pq



Message is in Reply To:
  Re: Stickers for Tiles in POV
 
Brett Neale <brett_neale@bigpond.com> schrieb in im Newsbeitrag: FvoCpy.x6@lugnet.com... (...) Here's an excerpt from a rendering I did recently. The original POV file was generated with L3P/L3PAO from an existing MPD file, then modified by hand. I (...) (24 years ago, 5-Jun-00, to lugnet.cad.ray)

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