I started out in web immersive 3D as a beta tester for Adobe Atmosphere and learned (or tried to) Zbrush to model for conversion to Atmosphere via Viewpoint. Learned a lot about UV mapping, conversions and such that way. When Adobe killed Atmosphere 1 year after release, i got Vue 4 Pro, then Vue 5i. Still use Photoshop, now model in Silo 3d (fantastic box/poly subD modeler for $109. beate Hexagon IMO). Also use UV Mapper Pro and Ultimate Unwrap UV and some other minor stuff. Now alpha testing a developing immersive web 3D app we hope will replace and go far beyond Adobe Atmosphere, based on the Ogre open source render engine. It's called "Blink 3D" and you can check out the early progress at PelicanCrossing.com.