I haven’t had much time to dig into OSL and what the capabilities / limitations are… but I’m reading that the next Renderman (19) will have support for it and Blender’s Cycles already has it. If I’m not wrong V-Ray 3 will also have some support for OSL: Chaos Docs So, let’s play with the idea that …

[image] ECW-Support I haven’t had much time to dig into OSL and what the capabilities / limitations are… but I’m reading that the next Renderman (19) will have support for it and Blender’s Cycles already has it. If I’m not wrong V-Ray 3 will also have some support for OSL: Chaos Docs Yes, we a…

This is awesome! I downloaded the latest v3 nightly, gave it a go and emailed support because I stumbled upon an include error :wink: You can get quite far with this; in fact one of our developers posted an OSL shader that implements a large part of the functionality of the VRayMtl material. S…

You can check this page if you haven’t.: [image] Chaos Docs It’s linked from the Maya help also, but in not very vsible way. Probably it’s better to just copy it in the Maya help also.

Hi Ivaylo, Yes I did. Those are great starting points. I thought Vlado meant that there was a far more complex OSL shader posted somewhere. :slight_smile:

Hi again, In the OSL example in your 3dsmax help, I found this example OSL shader: surface vray_glass ( float eta = 1.44 ) { Ci = reflection(N, eta) + refraction(N, eta, "auto", 1); } In the refraction closure statement, what is “auto” and what is 1? This is not mentioned under “Supporte…

OSL closures provide a keyword extension mechanism that allows OSL implementations to stick to the specification and yet provide custom control. However, these additional parameters are not guaranteed to be portable across other OSL hosts. Yes the closures are following a standard and it is the Op…

Ah, perfect. It was a clear case of RTFM. Thank you! :slight_smile:

OSL – strengths and limitations

V-Ray V-Ray for Maya General

vlado June 9, 2014, 8:39pm 7

See here: http://forums.chaosgroup.com/showthread.php?74263-VRayOSLTex&p=593432#post593432

Best regards,
Vlado

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OSL – strengths and limitations

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