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Magnifying Lens
About Truespace Archives
These pages are a copy of the official truespace forums prior to their removal somewhere around 2011.
They are retained here for archive purposes only.
Magnifying Lens // Roundtable
Post by jamesmc // Mar 16, 2008, 7:44am
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jamesmc
Total Posts: 2566
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First did this in another 3D program and adapted it over to trueSpace.
I'm sure this has been done before and much better than my crude effort, but just in case someone has a need for it or wants to improve it, here it is.
User the center of the lens to focus in on what you want to magnify.
Remember increased distance = greater magnfication.
Also, be sure and use the zoom tool (the "X" icon instead of scrolling , so you won't get perimeter fuzzies )
I removed all reflection parameters in the material box, used a plain glass shader, rendered in Lightworks, turned off shadows and made it double sided.
:)
Note: Here's a pretty good explanation of magnification and refraction provided by Olympus. It includes the formula. Needs Java to view the image.
http://www.olympusmicro.com/primer/java/lenses/lensvariations/index.html |
Post by jamesmc // Mar 16, 2008, 8:05am
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jamesmc
Total Posts: 2566
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Here's a couple of more images in my experimentation of magnification. :) |
Post by v3rd3 // Mar 16, 2008, 1:59pm
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v3rd3
Total Posts: 388
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Thank you james .... this is an interesting technique and is now part of my mighty 3d warrior weapons kit...!!! |
Post by jamesmc // Mar 16, 2008, 2:33pm
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jamesmc
Total Posts: 2566
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Thank you james .... this is an interesting technique and is now part of my mighty 3d warrior weapons kit...!!!
You're welcome. :)
Playing around with it, I found it can be animated as well.
My scenario was a 'bug hunter' looking for bugs on flowers and grass.
I just made some crude objects, passed the lens over the grass and flowers and it works great!
Could be used for intros, detective stories, distortion effects, simulated camera and microscope effects, etc. etc.
A cool toy to have in the ole toy chest. :) |
Post by kena // Mar 16, 2008, 2:48pm
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kena
Total Posts: 2321
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a magnifying glass is a handy thing to have around. I keep one in my object library, and used it on the second picture in my submitted picture thread. (http://forums1.caligari.com/truespace/showthread.php?t=2383)
the porthole that you are looking through uses my magnifying glass. |
Post by jamesmc // Mar 16, 2008, 3:30pm
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jamesmc
Total Posts: 2566
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A short video on my experimentation with the magnifying effect through a lens. Searching for a bug in grass. :D |
Post by RAYMAN // Mar 16, 2008, 5:21pm
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RAYMAN
Total Posts: 1496
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Well I did this fast render in Kerkythea using the package I submit
with this post I will post it to the garage too !
Its a Bipath Metropolis Light Transport render with exagerated
colour diffraction of Abbe 3,7 which is pretty low !
normal lens glasses have between 20 and 60 !
The lenses that I post are from nurbs and are obj .
and .3dm files in case you need that too.
They should be quite smooth so they should work pretty well
optically !(All major types) plus a ball from nurbs !
Have fun !:)
Peter |
Post by jamesmc // Mar 16, 2008, 5:40pm
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jamesmc
Total Posts: 2566
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Thanks for the lenses rayman.
MOI eh?
I heard that was a very good program. Have too many already to try something else. :) |
Post by RAYMAN // Mar 16, 2008, 5:54pm
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RAYMAN
Total Posts: 1496
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MOI eh?
:)
Yup ! smooth as a b_t !:D
And the render engine is free its Kerkythea !
It works as a standalone !:)
Thats the only 3 apps I´d miss (incl. Truespace !)
I will post the render through ! the glass when its finished cooking .....
but it already looks good !:)
Peter |
Post by RAYMAN // Mar 16, 2008, 6:19pm
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RAYMAN
Total Posts: 1496
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This is the render with the concave concave lens..... the one far left
right in front of the Kerkythea camera......
You could make fisheye pictures with it that way if you use
wide angle setting !
Again Bipt MLT with chromatic disp. Abbe 3.7 on lenses on ground and
abbe 20 on camera lens...:)
Peter |
Post by RAYMAN // Mar 17, 2008, 4:07am
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RAYMAN
Total Posts: 1496
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Made a fisheye lens based on a cut of a real one.
First picture is with the concave concave lens and hdr
picture is with this... new fisheye lens I want to share with
you... (In the gararge)!:)
Peter |
Post by RAYMAN // Mar 17, 2008, 5:06am
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RAYMAN
Total Posts: 1496
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This is a render in Vue with the fisheye lens....
Peter |
Post by RAYMAN // Mar 17, 2008, 5:58am
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RAYMAN
Total Posts: 1496
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For better comparison !
With and without fisheyelens ...
Peter |
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