There are different ways through which you can do this crafting of 2D into 3D like of scalling, shearing. https://errorcode0x.com/fixed-dell-printer-error-016-302/ helped me to get the best way to do this.
The reason this hashtag started was that there was a guy in Japan criticized the company behind pokemon(gamefreak) saying that their 3D artist are useless. and skilled 3D models would be able to be made in 5 minutes. He mentioned that you can do 800 pokemon each in 5minutes so close to 60 hours will be only needed. and if they can't do that, they are not worth the salary. and 3D modelers took this as a challenge. Resulting in 3D modelers doing modeling / sculpting in various 3D software.
Don't know if you're still having this issue but it's fixed by enabling "Specify Manual Texture Size" and then playing with the "Manual texture size" input until it seems right.
Check out Asset Forge, a toolkit that allows anyone to create 3D models and 2D sprites using building blocks. Finished assets are said to be compatible with most available game engines.
How it works
What you gain is an access to a large library of pre-made blocks, they’re each grouped in different categories. You can place an unlimited number of blocks in your creation after which it’s possible to export and use in the game engine for your choice.
- Move, rotate and flip blocks
- Apply colors and textures
- Export as OBJ or FBX file formats
- Render your model as PNG
The exported models are compatible with most game engines including Unity, Unreal, CryEngine, Blender and ThreeJS. The 2D sprites (PNG) are compatible with all game engines.
You can find more detail on the tool and FAQ here.