Universe Sandbox is a physics-based space simulator. It merges gravity, climate, collision, and material interactions to reveal the beauty of our universe and the fragility of our planet. Create, destroy, and interact on a scale you've never before imagined.
The program itself will generate a GIF file. However, I choose to save the clips via screen capture. The tutorials are helpful but there is still a learning curve. Personally, I found the interface not very intuitive. Still, the program rates very high reviews from users are there seem to be regular upgrades with preprogrammed designs and simulations.
This is an interesting strategy if you are looking for an easy way to create stock video clips. After buying the software it is a virtually free way to create many short clips suitable to submit as stock video and all from the comfort of your favorite chair.
The last clip shown in the video was my first sale from Pond5 which paid me ...