From the latest Corona Renderer 7 Daily Builds Changelog: Added new grounds up PBR material - CoronaPhysicalMaterial - Renamed CoronaMaterial to CoronaLegacyMaterial There should be no change in existing maxscript which uses CoronaMaterial Fix of “No sockets could be bound!” DR failure Fixed m…

[image] marchik: as an example, lets take a flooring material, let’s assume I use a generator from Poliigon and at the output, in addition to roughness, I will also get a specular level (pic1) but unfortunately now I can’t use it directly but only as a mask when mixing two IORs, in fact it is no…

[image] romullus: I can’t tell you how realistic those maps are - i suspect they are pretty arbitrary, but by mapping IOR instead of reflection level, you get at least physically more correct results, even if it requires more work to set-up. exactly) no matter how realistic those maps are, my…

I wanted to contribute some insights. For metallic materials that accumulate a thin layer of dust, it is interesting to be able to map the metalness so that it has dielectric zones (non-metal), as the physicalmtl now allows. Previously we could do this by lowering the reflection and the diffuse col…

[image] marchik: it would probably be a good idea to allow mapping ior values with rgb where 1.0 is 0.0.0 and 3.0 is 255.255.255, in this case we can easily clamp our speclvl map values to 0-128 and get reasonable results. Just my thoughts. Is this (screenshot attached) solution good …

[image] n2graf: For metallic materials that accumulate a thin layer of dust… The issue is that metal and dust are two completely different materials. Layered Mtl would be definitely preferred here. Maybe you could also use the built in Sheen layer? (you can specify its color, amount, and rou…

[image] Feodor: As always, you are on top! But! When testing the new Shader, I found two problems. First: in a refractive material, when the minimum roughness value is set, the IOR changes significantly. Shown in the picture. Especially the picture becomes different when using glass with the …

[image] maru: [image] marchik: it would probably be a good idea to allow mapping ior values with rgb where 1.0 is 0.0.0 and 3.0 is 255.255.255, in this case we can easily clamp our speclvl map values to 0-128 and get reasonable results. Just my thoughts. Is this (screenshot attach…

It doesn’t have to be cumbersome, just set-up this map once, save it to a material library and never get bothered by creating it again. And you can control everything from slate editor view, no need to go to parameter editor. I think you are well aware that remapping Corona IOR slot as you ask, wou…

Would it not be easier to just create a dedicated “IOR map” that the source bitmap feeds into, that automatically inverts, and internally changes the high value according to whatever the main material IOR is? This implementation shouldn’t need a material rewrite or break any pre-existing material se…

New Corona Physical Material (PBR) playground!

Corona Corona for 3ds Max Previews

rowan_manns January 8, 2021, 6:51pm 55

Second issue is fixed in the latest daily. Available here: https://forum.corona-renderer.com/ Corona Renderer 7 for 3ds Max - Daily Builds Changelog #msg180340

Cheers.

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New Corona Physical Mat (separating reflections from refractions) Previews	17	16418	March 29, 2021
PBR tuning of the reflectivity ability General	40	42891	December 30, 2014
physical mat \| reflection intensity question General	34	15833	February 3, 2022
physical material Requests	13	7184	July 17, 2023
PBR kinda materials General	112	101999	August 26, 2016

New Corona Physical Material (PBR) playground!

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