In 2025 i had the fantastic opportunity to create my own Substance Source Signature Collection in collaboration with the Adobe Substance 3D team.
My collection is a series of 10 fully parametric substance files that cover celestial objects and surfaces - from big objects like stars to closeups of the inside of a meteorite. To learn more about the project please read the accompanying article on Behance:
https://www.behance.net/gallery/236981715/Procedural-Planetarium-by-Matthias-Schmidt
The star substance is inspired by astronomical photos of the sun that use different filters to bring out details of the surface.
Links to the assets for this Signature Collection:
https://substance3d.adobe.com/assets/collections/34c84b36cc209845f64b9f664340ed7b0dbef0e2