My path in 3D and 2D animation has been a bit all over the place. Like heyvern, my first professional use of 3D was Ray Dream Designer/Studio, which I used as a freelance illustrator for a couple of years, creating character/concept designs and backgrounds for Klasky-Csupo and Disney. That was back in mid to late '90's. When I started thinking about getting into 3D animation and visual fx professionally, I first looked at Animation Master because it was an inexpensive entry level program. Unfortunately, I could not get that software to run on a Mac for more than a few minutes without crashing, so I abandoned it and went more high end. I was using Electric Image Broadcast for a while, which was a very good renderer at the time but not so much for character animation and back then it didn't have a native modeling program. Finally, I switched to Lightwave in 1998--the Mac version of LW also had a rocky start back then but it got better quickly, and it wasn't long before I was regularly working in feature films and television. Eventually, I switched to the Windows version to be consistent with the studio I was with (I was Senior Digital Artist for the Box at Rhythm & Hues for 12 years,) and I've been using LW for commercial and film work ever since.
Since we're discussing the price of software, Lightwave 5 cost my about $1100 at the time as a cross-grade from EI. That's not terribly expensive for professional 3D software and using it (along with Eyeon Fusion and Adobe Photoshop,) continues to be my primary source of income. The full price of Lightwave 11 today is actually less expensive than Lightwave 5 was back then, but it's many times more powerful.
Nowadays, I use a hybrid workflow of many different 3D and 2D applications, and ASP is the latest addition to the pipeline.
'Scareplane' was an in-house experiment to see how well ASP could fit in. Nearly all of the animation in that project was created in ASP and I'm mostly happy with how it turned out. My 'day job' is still primarily visual fx for live action features, but Alisa and I are currently creating a 'Saul Bass' style closing titles animation for a film using ASP and it's been working out very well.
Funny thing is, I started out wanting to be a 2D animator but it's taken me this long to get around to doing that professionally.
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