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This image is my submission for a Lego raytracing challenge that is held
within the LDraw community. LDraw is a popular system of free software
tools for modelling Lego creations in 3D (www.ldraw.org). POV-Ray is the
rendering tool that is most frequently used here.
The idea behind the raytracing challenge is to showcase rendering techniques
within the community and to spur people's creativity and show different
interpretations of the same source material. Thereto, a Lego model is
provided (digitally), which should be used as the basis for a scene.
A gallery of the submissions can be found here:
http://www.ldraw.org/Article451.html
For a previous edition I submitted this image:
http://www.ldraw.org/gallery/2007/RACHAL_Atmosphobic_AvdH.jpg
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Attachments:
Download 'rachal_impossible_avdh.jpg' (300 KB)
Preview of image 'rachal_impossible_avdh.jpg'
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that's amazing, looks very real. The only giveaway is the faceting of the
head.
cu!
--
#macro G(b,e)b+(e-b)*C/50#end#macro _(b,e,k,l)#local C=0;#while(C<50)
sphere{G(b,e)+3*z.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1;
#end#end _(y-x,y,x,x+y)_(y,-x-y,x+y,y)_(-x-y,-y,y,y+z)_(-y,y,y+z,x+y)
_(0x+y.5+y/2x)_(0x-y.5+y/2x) // ZK http://www.povplace.com
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Thanks for the comments everybody.
@ Zeger
> that's amazing, looks very real. The only giveaway is the faceting of the
> head.
Yes... I really dislike the faceting of the face. The next time I will
certainly work on that. I already found a workaround.
@ Charles
> ... It seems strange
> that they'd provide so few polygons on the face. Do you get to choose
> different versions of different bricks?
It has to do with the way these bricks are modelled in LDraw. If I'm not
mistaken, all parts are build up from quads and triangles. Moreover, in the
past, I think it was more important to have 'memory efficient' parts, rather
than the best quality possible. This is not too bad when the parts are used
in an LDraw editor or viewer, but it shows when they are exported to
POV-Ray.
Actually, there is a little mesh enhancer program available that can smooth
out some of these parts, but that doesn't always work.
@ Thomas
> However, I would have liked to see less focal blur. It distracts from the
> image and - in my case at least - it hurts the eyes.
Hmmm... okay. I really liked it originally, but now that I see it again on a
different (better) monitor, I think you are right.
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