2D-3D Drawing Tools And 3D Renderings

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Hi, guys

 

I am doing some boxes design. Sharing some 3D blank sample and 3D color sample here. The design is just a practice, not good, I am making progress.

I also want to learn how to do structural 3D design, such as draw a 2D car, or draw a round vase, and then view the 3D renderings, any good software for advice, I want to define the way the structure rotates, and I also need the tutorials. Thanks.