View Full Version : Fish Eye lens Effect?


Jarrede
08 August 2005, 07:51 PM
anyone know of a way to acheive this effect? know of a plugin?

TrexGreg
08 August 2005, 09:19 PM
I guess, this is what you're looking for...

http://www.worley.com/polk/polk_lens.html

Cheers,

Jarrede
08 August 2005, 09:29 PM
I guess, this is what you're looking for...

http://www.worley.com/polk/polk_lens.html

Cheers,

hmmm...I'm not sure, ...the pincushion effects are kinda like it.

I was thinking of something more along the lines of this

http://cmp.felk.cvut.cz/~bakstein/demo/fisheye/fepb02sm.jpg

can polk do that?

pooby
08 August 2005, 09:39 PM
you can point the camera at a curved 'mirror' and render.

Jarrede
08 August 2005, 10:11 PM
you can point the camera at a curved 'mirror' and render.

holy crap thats brilliant!...only problem is if you wanted to animate the camera, you'd be doing so...backwards...kinda...

for stills it'll work great.

3danim8d
08 August 2005, 10:13 PM
Jarrede,

I've gotten good results by rendering a reverse angle of a 100% reflective sphere with 0 specular and then flipping the image back in photoshop. You can get different effects by squashing the sphere by different percentages.


Good luck

Jarrede
08 August 2005, 11:18 PM
Jarrede,

I've gotten good results by rendering a reverse angle of a 100% reflective sphere with 0 specular and then flipping the image back in photoshop. You can get different effects by squashing the sphere by different percentages.


Good luck

thanx a bunch guys.

Zardoz
08 August 2005, 12:22 AM
I Jarrede,

Some time ago I tried to get the same effect...so here I leave the link to a thread where I posted my efforts

http://forums.cgsociety.org/showthread.php?s=&threadid=111157

I have what I did explained in here.

Jarrede
08 August 2005, 12:26 AM
would be nice if someone made a plugin... I know it's not too difficult. :)

WilliamVaughan
08 August 2005, 03:11 AM
I believe this will be possible in 9.0 based on what was shown at SIGGRAPH

annaleah
08 August 2005, 03:40 AM
Dont these ( http://www.arrakis.es/~juanj/ ) work?
Special projection Engine.....

I thought William might have remembered Juan Jose Gonzalez plugins( avery acclaimed Lightwave-artist).

Im not sure if they work above 7.5 but I thought they would.
Im exhausted from a day a the pool or I would load it up on my machine and test it.

gerardo
08 August 2005, 07:08 AM
Yep, works in LW 8.x very well, you can use Hemispherical Projection and get that effect very easily (although doesn't work with some shaders and image/pixel filters). Other way is also use Spherical/Cylindrical Projection (JJProjection or Enviro) or if you want compatibility with filters use Refgen (by Ekki Halkka) to get something similar to latitud/longitude panorama and then transform it in mirrored_ball format in HDRShop or mapped in a sphere and render again from there.
Zardoz and Pobby technique may be a better option if you need to work with some image/pixel filters too (btw, Zardoz's result is pretty nice). Another way is to make it in post (distort effects like Bulge or Spherize or maybe FE_Lens), but you will need to render images a little bigger than the final result to avoid pixelated pictures.



Gerardo

red_oddity
08 August 2005, 12:14 PM
Just create a half sphere, set texture to something like :
Color 255,255,255
Lum 0
Diff 0
Spec 0
Refl 0
Transp 100
Refraction 3
Transl 0
Bump 0

Smoothing 89.53
Double Sided Yes/On

parent it to your camera, move along Z axis so it is in front of your camera.
Tweak Scale/Position and Refractive index.

(took about 20 minutes to do, including modeling/texturing and rendering)

This is one of those things you just can't really do nicely without FPrime...

http://sven.pinkyandtheskybunny.nl/images/stadje_grade0000.jpg

PetterSundnes
08 August 2005, 12:35 PM
I just suggested the same thing to a 3DS max user, use lens distortion effects with a refractive object on a regular camera. Big surprise, it works :)

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08 August 2005, 12:35 PM
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