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View Full Version : Fish Eye lens Effect?


Jarrede
08-20-2005, 07:51 PM
anyone know of a way to acheive this effect? know of a plugin?

TrexGreg
08-20-2005, 09:19 PM
I guess, this is what you're looking for...

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

Cheers,

Jarrede
08-20-2005, 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
08-20-2005, 09:39 PM
you can point the camera at a curved 'mirror' and render.

Jarrede
08-20-2005, 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
08-20-2005, 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
08-20-2005, 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
08-21-2005, 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
08-21-2005, 12:26 AM
would be nice if someone made a plugin... I know it's not too difficult. :)

proton
08-21-2005, 03:11 AM
I believe this will be possible in 9.0 based on what was shown at SIGGRAPH

annaleah
08-21-2005, 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
08-21-2005, 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
08-22-2005, 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
08-22-2005, 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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