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Rendering with Arnold in 3ds Max using the MaxtoA plug-in.
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Complex IOR in 3DS Max 2020

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Message 1 of 6
Anonymous
982 Views, 5 Replies

Complex IOR in 3DS Max 2020

Hi, I was learning about the Complex IOR shading in 3DS Max 2019 and then updated to 2020, now I can't find the node anymore. Using MaxtoA 3.2.57 here.

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Message 2 of 6
Stephen.Blair
in reply to: Anonymous

Complex IOR is deprecated (it's old and you should not use it).

The Standard Surface has the complex Fresnel built-in when the metalness is > 0, using the base and specular color.



// Stephen Blair
// Arnold Renderer Support
Message 3 of 6
kulaginb
in reply to: Stephen.Blair

Really? Is Metalness parameter gives us physical correct IOR? For some metals or alloys its not enough two colors falloff. Do you know about measured IOR?

Message 4 of 6
Anonymous
in reply to: Anonymous

Can anyone tell me if the node doesn't exist in the Arnold recent updates or if it is a problem with my 3ds Max version?

Message 5 of 6
madsd
in reply to: Anonymous

Try look at Stephen's reply.
Also ->

4592-qweqweqwe.jpg

Message 6 of 6
Anonymous
in reply to: Anonymous

Thank you! And sorry, I really thought I had checked the docs. Plus, Boris' comment made me doubt about Stephen's reply so I needed one more.

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