Hi, sorry for taking a few weeks to get back to you. 3D content is possible to create in the Lite version of PolyOne3, but much easier using custom properties in the Pro/full version.
If you only need a few levels of height (or in an imaginary Z-coordinate), you can get by like this:
- Separate each Z-coordinate into its own layer, and include that Z-coordinate as a prefix or suffix in the layer name. You should probably use some character to separate it so you don't have any processing mishaps.
- When processing your exported JSON file in your engine, assuming you're doing that, use the suffix/prefix in the layer name to determine which Z-coordinate you give the geometry in that layer.
- In processing, you could also make it so that triangles where two vertices are at the same position create walls.
A couple of gotchas:
- PolyOne3 doesn't currently provide a way to rearrange the exported file data so that editor Y-coordinates go the vertsX or vice versa.
- If you need a .obj export or similar, PolyOne3 doesn't have a feature for that yet.
Thanks for your interest in PolyOne3!