Subject:
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Re: Monster Truck
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Newsgroups:
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lugnet.cad.ray
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Date:
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Sat, 16 Aug 2003 17:19:55 GMT
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Viewed:
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1240 times
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Hi Tavis,
I love your render. It's pretty neat. There are two thing that it lacks IMO:
warmth and reflection in the chrome.
Warmth: there are 2 ways to get some warmth in the picture; don't use white
light but a more yellow/orange light. For example
color rgb <0.98, 0.92, 0.79>
fiddle with the numbers to get the colour you like. If it is to warm
increase the blue (0.79 in the example). If the color is to bright you can
divide it like this:
color rgb <0.98, 0.92, 0.79>/1.5
or
color rgb <0.98, 0.92, 0.79>/2
Placing the light on the same vector as the camera can give good results but
try to play with it a bit, place it somewhat higher and offset the
z-coordinate: if your camera vector is <x, y, z> place your light on <x,
y-a, z+b>
(this has nothing to do warmth:) Try to use a paralell light, for example:
light_source {
<8063.38,81,4655.39> // Latitude,Longitude,Radius: 0,120,9310.79
color rgb <0.98, 0.92, 0.79>
parallel
point_at <0,0,0>
}
The Royal Train render also uses a floor that rounds into a wall (get the
LDraw file here: http://news.lugnet.com/cad/dat/scenes/?n=28 ). Place this
file in your Models folder and place your model on it. You can enlarge it if
necesarry. In the POV code change this line:
object { rondback_dot_ldr matrix <2,0,0,0,2,0,0,0,2,0,-127,1000> #if
(version >= 3.1) material #else texture #end { Color383 } }
into
object { rondback_dot_ldr matrix <2,0,0,0,2,0,0,0,2,0,-127,1000> texture {
pigment { color rgb <R,G,B> }finish { ambient 0 diffuse 1 } } }
Be creative with the background color (the R,G,B in the last line). Make it
blue-ish grey, or orange-grey. Don't over-do it but be creative and don't
use solid colors (so R,G or B are < 1).
---
Reflection in chrome: I noticed that the grill is now white. Try to make an
object in front of the model but out of sight of the camera that reflects in
the chrome parts. If you know how to use POV-Ray you could make a plane and
give it a gradient. It is a bit too complicated to tell you here so please
read the POV manual
I hope this helps
Jeroen
"travis" <phree@attbi.com> wrote in message news:HJMsKs.u6w@lugnet.com...
> hey Guys
>
> well i'm still at it, and making some progress.
>
> http://www.brickshelf.com/cgi-bin/gallery.cgi?i=489110
>
> I'm getting more in control of the lighting and of the mlcad program in
> general as well as lp3ao and POV-Ray. I'm now using the radiosity • libraries
> and a single light right at the same place as the camera. What should I • be
> doing to make my photo look like this.
>
> http://www.brickshelf.com/gallery/jeroendehaan/TheRoyalTrain/0001test.jpg
>
> -tk
>
>
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Message is in Reply To:
 | | Monster Truck
|
| hey Guys well i'm still at it, and making some progress. (URL) getting more in control of the lighting and of the mlcad program in general as well as lp3ao and POV-Ray. I'm now using the radiosity libraries and a single light right at the same place (...) (21 years ago, 14-Aug-03, to lugnet.cad.ray)
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