Austrian artist made his own Megascans

Rikk The Gaijin

These look pretty good, if you ask me.
https://www.artstation.com/artwork/real-displacement-textures

Joost

As far as I know this is just photogrammetry. Quite different from Megascans. But very cool nonetheless!

Ispheria

How is megascans different exactly? I always just assumed that it was photogrammetry

Joost

I'm not an expert, but from what I've seen they use LED panels to light the surface from different sides and then use that to generate a normal map. And they use cross-polarization to isolate the specular.
Camera stays stationary. Whereas with photogrammetry you move the camera and use parallax to generate the surface. And there's no accurate way of getting the correct specular texture.

Ready at Dawn material scanning:
[ame]https://www.youtube.com/watch?v=_wIgmEch1P8[/ame]

cross polarisation http://filmicgames.com/archives/233
normal map generation http://www.zarria.net/nrmphoto/nrmphoto.html

Rikk The Gaijin

The "Megascanner" that Quixel have built is basically a "portable" 3D scan. It does use photogrammetry, and I guess they developed some fancy algorithm to do all the post processing automatically. Megascans is nothing "magic", everyone can potentially do their own scan, it's just that Megascans already have thousands of materials PBR calibrated, ready to be used, so in theory it would save a lot of time, too bad it never comes out...

loggie24

Wouldn't surprise me if they used some kind of IR or laser to measure depth either. I would like to get some more info about the scanner as well but i doubt Quixel will release anything on their super secret asset.

throttlekitty

The inside of their box would be lights/filters/cameras and likely taking a ton of pics with different combinations. I'd reckon the bigger part of the magic is in how they're processing the resulting images to extract into PBR images.

Rikk The Gaijin

He posted a link to a FREE test material
https://www.artstation.com/artwork/O3gGe

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