rendering lightbulb trick?
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i have never tried that (at least not with a renderer), but in real live you would place a very dark filter in front of the camera. the effect is not only a visible wire, but a subtle glowing around it, because of the light diffusion of the filter. maybe it works like that in octane also...s7r83dg3 wrote:What is the trick if I want to render close up of a light bulb so the glow wire is still visible while the thing is turned on.
edit: i assume, you would also like to see the glass of the bulb; this may need some kind of cheating though...
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Yes, because if you use single side mesh, the whole volume will be treated like if the bulb was filled with glass : the empty volume behing the glass will have the same IOR as glass. I encountered the problem with cars : with single side windows, the glasses acted like strong lenses ad the inside was deformed.Does the glas geometry need to be double sided? I mean with thickness ... air gap and so on
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