Supporting FBX from Maya

RevoluPowered commented 5 years ago

This is an effort to move to support the newer version of the FBX format:

From preliminary research we need to implement the following:

Core:

[x] Pivot data handling on aiNode transforms and on aiBone (probably going to require a lot of work)
[ ] Have support for old format and new format but using the same importer as it's just fields which are missing or ignored.
[ ] Culling property implementation currently not usable, can't use with aiNode.

Extras:

[x] Expanded FBX material support (PBR, PBS, mental ray, etc)
[ ] Add new entities from the FBX format (AiActor etc)
[ ] Expand test cases to support these new features

We need this to properly support files from Maya yes it's going to be a lot of work. Right now we have good support for Blender3D but not for Maya FBX exports.

@fire and I are going to be looking into supporting this change but we may need help as this will be a lot of work.

RevoluPowered commented 5 years ago

Update after finding more bugs:

Basic support of Autodesk products (maya fbx, max fbx, etc) I think we need the following implemented:

Support for FBX winding order definitions need added to assimp, and we need to convert it to a standard winding order which assimp uses. (this prevents some / not all, blend shapes with different winding orders being invisible from some sides in the engine).
Pivots and animations need to work together.

RevoluPowered commented 5 years ago

https://github.com/assimp/assimp/pull/2640

Basic Arnold material support has been PRd.

assimp / assimp

Supporting FBX from Maya #2631