lua-live2d-framework

CubismNativeFramework but in Lua.

Provides both CubismNativeFramework-like API and Live2LOVE-compatible API.

Differences

C++ and Lua are completely different thing. Here are some differences between CubismNativeFramework and lua-live2d-framework:

• lua-live2d-framework uses lowerCamelCase naming while CubismNativeFramework uses UpperCamelCase.

• CubismId and CubismIdHandle does not exist. Lua string is used instead.

• Anything that uses numeric index ID are assumed to use 1-based indexing.

• There's no Delete function. Lua has automatic garbage collection.

• CubismModel::GetDrawableVertexUvs is Model:getDrawableVertexUVs (notice the uppercase V)

• Model:getDrawableBlendMode returns 2 strings, which maps to LOVE BlendMode and BlendAlphaMode respectively.

• CubismModel::GetModel returns backend-specific model object.

• CubismMoc equivalent class does not exist. Moc data string is passed directly to Model object constructor.

• In MotionJson (CubismMotionJson equivalent), any IsExist* method is replaced by has* method instead.

• All is* or has* method doesn't accept additional value to set the value. Use set* function respectively to set it.

• Addition of Model:getAllParameterValue which returns 4 values: current parameter value, min, max, and default value.

Third-party Libraries

Here's list of 3rd-party libraries used:

• JSON.lua - CC-BY license.

• Luaoop - MIT license.

• nvec - zLib license.

License

Most portion of the code falls into Live2D Open Software License which is incompatible with GPL and its friends. However, some part of the program like backend and third-party libraries are licensed under permissive license. See each file for more information.

Here are list of files (exclude 3p folder) which falls under MIT license:

• init.lua

• Any files at backend folder.

• math/Math.lua

• Live2LOVE.lua

Anything not stated, with exception of dummy.lua falls into Live2D Open Software License.

This thread also worth checking: https://community.live2d.com/discussion/666/re-implementing-cubismnativeframework-is-it-allowed