In order to acquire one of the best consequence in your mission, there’s mainly two methods:

• Make your individual 3D fashions from scratch with a 3D software program like Blender (free)/ Maya LT/ 3DS Max.
• obtain free 3D fashions from varied web sites (I personally don’t depend on this answer so I do not know if these web sites will likely be good, however you possibly can at all times obtain fashions from Clara.io or CGTrader).

If you need to make the 3D Model from scratch, you will want to mannequin the Rings of Saturn and unwrap the UVs (that is the primary drawback in your consequence), and both create the feel from scratch (with Blender, Substance or one other Texture Software) or apply the feel that you have uploaded right here.

Please observe that your present texture of the Rings of Saturn will likely be displayed in Unreal Engine, however it’s positively not the suitable format within the gaming trade (i.e., the decision of your file shouldn’t be a Power of Two like 256*256 or 1024*1024). The varied causes of protecting a Power of Two texture won’t ring a bell at this stage however must be stored in thoughts (mip-maps, no GPU optimization, no multi-plaform sport assist…).

If Blender will likely be your alternative for the 3D Software (and Texture Software), you possibly can watch some YouTube tutorials for inexperienced persons, like Blender Guru or Grant Abbitt.

Good luck along with your Solar System mission!