Modeling software and tools from 10-20 years ago are complicated, and it takes years of training to master them. But today’s apps, like Shapr3D, make 3D modeling easier to learn.
If you’re not convinced yet, try this. Visualize an object like a coffee mug in front of you. Then, adjust the mug in your mind so it gradually becomes the exact mug you want.
What you just did perfectly illustrates the idea of 3D modeling in Shapr3D. In the app, you create sketches, which are 2D drawings. Then, you use those to generate 3D bodies.
You can sketch something like this:
If you revolve the highlighted part of this 2D drawing by 360 degrees, then you can create a 3D object—a bottle.