Dontnod entertainmentIf you're coming to Space from a previous generation virtual world (such as Second Life or OpenSim), one of the big challenges you'll face is making sense of all this PBR stuff. Depending on whether you spend much time in a 3D modeling program, and which programs you use, it might be easier... or it might be more difficult to get your arms around. The super short version: PBR materials look much better, but take more work to create. Here are a few guides and tutorials that you might find helpful... The Beginner's Guide to Physically Based Rendering in Unity by Nick Pettit, Treehouse Feeding A Physically Based Shading Model by Sébastien Lagarde, Dontnod entertainment The Comprehensive PBR Guide (two volume downloadable PDF) by Wes McDermott, Allegorithmic Working With Physically Based Shading: A Practical Approach by Erland Körner, Unity There are probably several other good ones out there, if you find one you find particularly useful, share in a reply below!