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Remind me what "Material ID" is, again, in the Surfaces tab

Roman_K2Roman_K2 Posts: 1,275
in New Users

I looked up "Material ID" and the first reference in the Wiki talks only about advanced Iray settings.

However on my computer there is a "Material ID" thingy under the Surfaces tab.

I am trying to colorize/modify/shade/roughen, add hair to, etc. a primitive capsule or baton shape... I've got the surface color nailed, more or less -- although Iray shaders seem to override that? -- and I know where the checkerboard pattern is coming from (that's a reflection map that I made; I may have inadertently put it into the "Environment" in Render Settings, ooops) and most of the other stuff, but what is "Material ID" (marked with a red arrow) here?

We've touched on this before/recently I think, but are there any special rules with respect to changing Iray shaders mid-project, like do you have to close Studio or restart the computer or anything like that?

Comments

  • Richard HaseltineRichard Haseltine Posts: 109,523

    That allows you to set the colour that will be used for the surface, rather than having Iray pick one for you.

  • mjc1016mjc1016 Posts: 15,001

    Leave it black...for most Studio 3DL shaders, it's not even used.  Some of the toon shaders and maybe the AoA shader will actually use it.

    It's a way of signalling to the shader that two surfaces using the same shader/settings/maps are in fact different.

    No, nothing really needs to be done when switching.

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