UModeler is the best 3D modeling and prototyping solution in Unity.
UModeler is an extension of Unity, which allows you to easily and quickly make models and prototypes. With UModeler, you can create static grid resources and game level prototypes without any other external DCC tools. In addition, UModeler supports not only gadget modeling, but also sketch based modeling, allowing you to draw 2D shapes on a plane, and then shape it into 3D shapes in an intuitive way. Any polygon is automatically triangulated, and even if it contains holes, it is imported into the rendering pipeline. This will save you a lot of time. UModeler contains about 90 tools for modeling, which will enable you to easily create, transform, and edit models in Unity.
