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Jonathan Papageorge avatar image
Jonathan Papageorge asked ·

Blue-Shift when Previewing Materials w/ transparent BG in SME

My issue is when previewing Arnold Textures in the SME [slate material editor] in Max18 [3DSMAX 2018].

Here is a video showing the issue https://youtu.be/cqS7bf96kjw . Please don't take the joke in the title seriously, I always wondered if I'd be butchering the ethos here with a joke that's probably a revenant ghost by now.

There's not much to it. I make an arnold material, I make the preview background the standard Max checker pattern, then the preview object suddenly has a blue haze.

My workaround for this currently is running a second instance of 3ds Max with the just materials and spheres loaded in. I then hide and show checker backgrounds in actual physical scenes to rapidly prototype the look of a material.

Thanks for your time I look forward to hearing from the Arnold community about this :)

materialstransparent
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Still having the same problem in MAXtoA 2.1.945.

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Michiel Van Gasse avatar image
Michiel Van Gasse answered ·

I use a custom background to fix it. ;)


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Randal Gonzaga Junior avatar image
Randal Gonzaga Junior answered ·

Having the same problem here. Using 3DSMax 2019 and MAXtoA 2.1.945.

Changing background does not solve the problem.


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Michiel Van Gasse avatar image
Michiel Van Gasse answered ·

It appears to take the color of the upper left pixel of a custom texture to light the material preview.

So I added the same gray as the default background of the material slot,~50 percent grey.

Here is my test background:


matpreview.png (624.2 KiB)
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Randal Gonzaga Junior avatar image
Randal Gonzaga Junior answered ·

I tried it, but although the blue cast goes away, the reflection and refraction still not be seen.

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Nicola Jannuzzo avatar image
Nicola Jannuzzo answered ·

This is a known issue and we have a ticket for it. We'll try to get it fixed ASAP.

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