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 CAD / Ray-Tracing / 230
Subject: 
Propellors on plane at Brickshelf
Newsgroups: 
lugnet.cad.ray
Date: 
Sat, 8 Apr 2000 21:22:28 GMT
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George,
How did you create the great propellor effect
in this rendering?
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=3364

(The stranded minifig is a nice touch.  Is the hair from some other LEGO POV
library?)
--Bram


Subject: 
Re: Propellors on plane at Brickshelf
Newsgroups: 
lugnet.cad.ray
Date: 
Sat, 8 Apr 2000 22:05:50 GMT
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In lugnet.cad.ray, Bram Lambrecht writes:

How did you create the great propellor effect
in this rendering?

I used MegaPov (an unofficial version of PovRay) that supports motion blur:
motion_blur { object {propel scale 2.5 rotate <clock*10,0,0> translate <-70, -
98, -100> } }

I made the plane with MLCad and then i added the pilot (including his helmet
and glasses), the man in the water and the propeller from Anton's Lego
library. I had to scale his pieces by 2.5 to make them the same scale as
LDraw's pieces.

George


Subject: 
Re: Propellors on plane at Brickshelf
Newsgroups: 
lugnet.cad.ray
Date: 
Sun, 9 Apr 2000 12:11:55 GMT
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"GeoMan" <geoman@ars.net.gr> writes:

I used MegaPov (an unofficial version of PovRay) that supports
motion blur: motion_blur { object {propel scale 2.5 rotate
<clock*10,0,0> translate <-70, - 98, -100> } }

Wow, there exists a version of POV-Ray which supports motion blur?  I
had no idea!

So far, I've always used the POV-Ray animation technique to achieve
motion blur.  This is somewhat CPU consuming, as I have to render,
say, 20 images, and then take the average of these.

Your scene is definitively very cool!

Fredrik


Subject: 
Re: Propellors on plane at Brickshelf
Newsgroups: 
lugnet.cad.ray
Date: 
Sun, 9 Apr 2000 22:41:13 GMT
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In lugnet.cad.ray, Fredrik Glöckner writes:

Wow, there exists a version of POV-Ray which supports motion blur?

MegaPOV supports motion blur, focal blur, photons (so you can create a real
mirror or prism), UV mapping, post processing filters and a lot more. It works
exactly like PovRay, it just adds the additional commands. You can get it from:
http://www.nathan.kopp.com/patched.htm

You can also try Terragen if you want to create realistic backgrounds at:
http://www.planetside.co.uk

I agree with you that the Brickshelf turns into a "showroom" and it's a good
thing because more people will be attracted to Ldraw and virtual Lego. More
people, more part authors, more and better parts and programs, more fun!

George


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