OBJ sequences are supported and can work well in some situations, but keep in mind there is no Offset functionality so if you Populate an imported OBJ sequence all the population instances will have the same animation. You can add some variation with rotation and size changes, and potentially also use the Mesh Displacer input on objects to help add some subtle variation, but it's tricky to get really well-varied results. You can also use the Mesh Displacer on its own for generally subtle motion (because larger motions look less realistic and are harder to achieve without discontinuity). It can work well on grass, dandelO's result above works essentially that way. But it is not that well applicable to some other object types.
- Oshyan