raincole Posted December 26, 2021 Share Posted December 26, 2021 I'm talking about this kind of material: How does it work in terms of PBR? I guess it has something to do with Thin-film interference? Can Karma render it correctly? If not, how could I fake it? Quote Link to comment Share on other sites More sharing options...
konstantin magnus Posted December 27, 2021 Share Posted December 27, 2021 (edited) Karma CPU + MaterialX supports iridescence directly: https://www.sidefx.com/docs/houdini/nodes/vop/mtlxstandard_surface.html Edited December 27, 2021 by konstantin magnus 1 Quote Link to comment Share on other sites More sharing options...
NoaX Posted December 27, 2021 Share Posted December 27, 2021 Which render engine are you using? If Redshift you can use OSL: https://github.com/redshift3d/RedshiftOSLShaders/blob/main/Iridescence.osl 1 Quote Link to comment Share on other sites More sharing options...
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