Bakin Blender Exporter

A Blender Addon that allows you to quickly export (in a single-click) FBX models and their material definitions (.def files) for RPG Developer BAKIN, letting you easily import your models into Bakin without having to manually import every texture for every model!

• If you wish to import a VRM from VRoid Studio, use this Blender add-on instead: VRoid for RPG Developer BAKIN (Blender Addon) by ingenoire (itch.io)

Usage

• Install the blender add-on by going to Edit -> Preferences, going to Add-ons, and selecting in the top-right the Install from Disk option (hidden in a small square on 4.2+)
  • On older versions of Blender, make sure to tick the box to enable the add-on.
• You'll find the Add-on on the right menu, which can be opened by pressing N, or clicking on the little arrow.
• Make sure your model uses Principled BSDF shader nodes (PBR), and save the blend file project.
• Make sure your texture nodes in the shader nodes connect to the standard inputs.
• Define a model name in the addon. This will define the folder name, model filename, and def filename, and will be saved in the folder where your blend file is.
• Press "Export FBX+DEF".
• Import the model into RPG Developer BAKIN.

Features

• Exports your model, textures, and a material definition file (.def) in a single folder.
• Generates Mask Maps according to BAKIN's specifications from the model's Shader Node textures: Roughness, Metallic, Emissive and Specular.
• Invert the color of any of the four textures that form the Mask Map.
• Contains information regarding troubleshooting errors and possible improvements on the BAKIN side.
• Three UI languages: English, Japanese (AI-translated) and Simplified Chinese (AI-translated).

Precaution

• This won't make your model look 1:1 with Blender.
• Your model, even if it's PBR, might not work for reasons beyond my control.
• Emissive and Specular are untested (Emissive was "tested", but not really, I have no clue how it works)
• Some troubleshooting advice are on the addon itself:
  • Join models together if they share material names, or rename materials to be different if they're actually different.
  • Try to keep shader node shenanigans as low as possible, or preferably bake your textures with an addon like Simple Bake.
  • Having multiple textures connected to a single input on the Principled BSDF probably won't work / get the wrong texture.
• I'm just as clueless as you are, I just "made" this addon by wrestling with two different AIs. Feel free to improve/fix upon this addon, I literally don't know much about 3D modelling in general.

Credits

• Models shown are from Blenderkit (https://www.blenderkit.com/)
• Code was (mostly) generated through ChatGPT (with a lot of troubleshooting and fixing).