Cinema 4D
Free
- CV-ArtSmart: Create 3D extrusions from Adobe Illustrator files.
- MatteMagic: Automatically add object buffers to your render.
- SwIm: Import adobe swatches.
- Thrausi: Destroy objects.
- Drop to Floor: Easily move an object so that it sits on the floor. [direct download]
Paid
After Effects
Free
- DuIK Tools: Inverse Kinematics for After Effects
Paid
- Reel Smart Motion Blur: Quickly add motion blur to your 3D animations in post. Yes, there are free workarounds, but the quality (and mostly the speed) of this plugin make it a must-buy.