I want to project a series of point lights to a polysurface.
I can do it as points projected onto a polysurface. But how would I do point lights?
I want to create the effect of a fiber optic lighting on a double curved surface (a bit like the enclosed image).
maybe you got too many lights Have you tried to hide all but one and does it render it ? Do you get the VRay light options in the properties wen that light is selected ?
Maybe using light objects is not the best idea. More efficient would be to render some constant spheres in a channel and add the effect to the rendering in PS.
For a fiber optic effect, I’d use an emission material versus an actual light. This will work much more efficiently in all the renderers I know. Use a low res mesh pipe or plane with a gradient to control the fade in the emitter color too if they’re strands of light.