Whoa! While browsing Rei’s site, stumbled on to this open-source tool. #SecondLife is moving to a PBR workflow “real soon now,” and the big content creators will have a painfully steep learning curve converting their products’ textures. This will help, expect SL to bury this info deep in the PBR wiki. aiaicapta.in/gltf-packer/
While doing homework for the coming #glTF workflow in #SecondLife I struggled with #channelpacking textures for manipulating how light reflects off of materials in a game engine. It’s easy in Photoshop, harder in GIMP. There used to be a plug-in for extracting different kinds of “maps” from images, but it was easy to screw up. The manual method is tedious; you can’t just plop a texture into an RGB channel, you have to make each greyscale. This open source tool might be helpful, and the aiaicapta.in is cited in the SL wiki as authoritative. The same site also has a…