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[Octane] Mesh light and Transmission material by pnn32 [Octane] Mesh light and Transmission material by pnn32
Demonstration of using mesh light and transmission material in Octane Render.

See completed work here: [link]

Now some explanations about used techniques:

1) PMC (or pathtracing) render kernel should be used for transmission to work. Also, a lot of samples per pixel required due to presence of single compact light source. You may notice a lot of 'hot pixels' in sample renders, because only 1600 or 2000 spp were reached. Completed work done with 13200 spp.

2) Lamp model from [link]

3) All materials shown are using just RGB values, not texture maps.
Key materials are:
a) Emissive material for bulb: diffuse material with blackbody emission (4200K color temperature, 25W power - simulating real incandescent light bulb).
b) Translucent lampshade: diffuse material, with transmission assigned to desired color (dark green here).
c) Metallic parts: glossy materials are used to make reflections and glares.

4) Scene composed in Poser, rendered in Octane; blocks, lines and labels composed in Paint.NET.
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:iconlomrick:
lomrick Featured By Owner Nov 24, 2013  Hobbyist Digital Artist
Thank you, as a newbie to Octane this is a big help.
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:iconwancow:
wancow Featured By Owner Jan 15, 2013
Thanks for this! Gonna be difficult to get it in 3Delight, but I'm told it's doable :)
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:iconpnn32:
pnn32 Featured By Owner Jan 15, 2013  Hobbyist Digital Artist
Unfortunately, these tips are primarily applies for unbiased (physically correct) render engines (such as Octane or LuxRender). In 3Delight it's possible to emulate color spots using directed spot lights. Or you can even try Octane (there is free demo of it [link]) or LuxRender (it's also free,but I'm not sure about its compatibility with DAZStudio).
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:iconv3digitimes:
V3Digitimes Featured By Owner Jan 1, 2013  Professional Digital Artist
Thank you for sharing with us!
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:iconchevy77:
chevy77 Featured By Owner Dec 29, 2012  Hobbyist Digital Artist
This is very useful indeed. Thanks so much for taking the time to create this.
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:iconthierrycravatte:
ThierryCravatte Featured By Owner Dec 25, 2012  Hobbyist Digital Artist
Excellent tips, very well done !
Reply
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