Support *pmd / *pmx format models.

[AraHaan]

Many people like me use PMD / PMX editor to create or import models into MMD. It would be nice if we did not have to somehow convert them to a supported format for this viewer.

[fire]

Hi, I wandered and saw your post. As someone who has spent significant hours on this problem. It's easiest to convert to gltf2 and render the animations that way.

See my post on at assimp github.

https://github.com/assimp/assimp/issues/644#issuecomment-582252048

[inno1OO]

how can i manipulate the 3d image?