Turn almost any computer into a 3D animation studio with CINEMA 4D XL Version 7! CINEMA 4D's enhanced architecture promises workstation performance on consumer hardware, so you can build your own animation studio with less investment than ever before.
This program received 8 awards
DOWNLOAD
You can't, you can only convert after applying effects, it will not work with other software.
How can I convert a 2D plan from AutoCad to Cinema 4d?
You probably cannot: AutoCad is Autodesk whereas Cinema 4D is Maxon.
Use Spine. I never used it but I have seen videos of Spine with 2D animations.