Fiber optic light

[komyali]

Does anybody know how to make fiber optic material, when I put it to cable lets say 1mm to have same result as a real fiber optic? Or maybe do something else to imitate fiber optic cable lightning ?

fiber optic cable

[Ricardo Eloy]

You could use 2 different VRayLightMtl, one for the length of the fiber and another for the tip. The first one could use a falloff map to fake the change in direction of the light while it passes thru the fiber, and the other could be a strong one to fake the exit of the light.

[komyali]

Nice, but that cant give me photorealistic look... it is difficult when cable is bend on more placeslamp. I tried with caustics but it is impossibile to imitate fiber conductivity of light...

[Scott Schroeder]

Ricardo's method can absolutely give you a photoreal result. Just use lofted objects (or spline mapped uvws) so you can have proper mapping coordinates for your individual cables.

 

You can also get your fiber optic cable looking perfect while it is still straight, then apply various bend modifiers. This way you can get your mapping down before you do any bends.

 

You can also re-purpose this script http://jokermartini.com/2011/08/08/path-streaks/ to help you.

 

Caustics won't do anything for you. If anything, you need to use an SSS material or translucency in the standard vray material.

Edited November 10, 2012 by VelvetElvis

[komyali]

I think you didnt understand me for simple cable it is easy to attach material and then bend but what about this LAMP I will try sss, also fiber have reflection... maybe blend material with light...

[Scott Schroeder]

It's a blend between two illuminated materials. Your blend map is a falloff map either Fresnel or perpendicular/parallel. As your face gets closer to your camera, the illumination is less intense.

 

If you need extra illumination on the sides, just to some doges and overlays in Photoshop.