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MB Lab Internals

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animate1978 edited this page Oct 30, 2019 · 10 revisions

MB-Lab Modules

MB-Lab is composed of several Python scripts and JSON data files, as well as a blend file and texture image maps.

_ init _.py

This is the core of MB-Lab.

  • Function calls
  • UI Elements

algorithms.py

Contains various functions for every engine.

animationengine.py

Handles the animation import and assigning to skeleton

  • Retargeting
  • Identifies Bones
  • Loads BVH files, saves and loads poses.

humanoid.py

  • Builds The Character
  • Handles much of the character changing functions including Auto-Modelling.

materialengine.py

  • This is where the image textures get loaded and applied to nodes

morphengine.py

  • This is where the morphs of the character are loaded from JSON files

proxyengine.py

  • Handles the Proxy Fitting functions

skeletonengine.py

  • Loads and applies the skeleton (either FK or IK) to the character

The Auto-updater consists of several python files

addon_updater.py

  • The functions for the auto-updater

addon_updater_ops.py

  • The MB-Lab specific settings

preferences.py

  • The UI element for the auto-updater

utils.py

  • Various utilities for MB-Lab

facerig

WIP

MB-Lab Data

The data of MB-Lab contains a library of JSON files that contain measurements, morphs, vertice locations and more. This is also where the main blend file and texture maps are located, the new animation BVH files as well. Some of the data has been converted to human readable format, others are too big to process at this time.

humanoid_library.blend

Contains the following

Mesh

  • MBLab_human_female
  • MBLab_human_male
  • MBLab_anime_female
  • MBLab_anime_male

Armatures

  • MBLab_skeleton_base_fk
  • MBLab_skeleton_base_ik
  • MBLab_skeleton_muscle_fk
  • MBLab_skeleton_muscle_ik

Shaders

Realistic Shaders

  • MBlab_pupil
  • MBlab_human_teeth
  • MBlab_fur
  • MBlab_generic
  • MBlab_human_eyes
  • MBlab_cornea
  • MBlab_human_skin
  • MBlab_iris
  • MBLab_tongue

Cell Shaders

  • MBlab_toon_black
  • MBlab_generic
  • MBlab_anime_skin
  • MBlab_anime_eyes

FaceRig

As of MB-Lab 1.7.5 the Face Rig is now independent of humanoid_library.blend

  • Face_Rig_widgets
  • Phenome_rig
  • MBLab_skeleton_face_rig

WARNING! Editing humanoid_library.blend can cause irreversible damage! Do not edit unless you know exactly what you are doing!

The current Dev file has been rebuilt using Blender 2.80.74, this can cause errors if using an earlier Blender 2.80 build (such as Blender 2.80.45).

characters_config.json

The base models, textures and JSON data are referenced from this file

retarget_knowledge.json

Retargetting data

anthropometry

Contains measurement data for male and female base models

assets

Contains the demo asset files, as well as associated texture maps.

bboxes

(?) Bounding Box?

expressions_comb

Contains human readable expressions

expressions_morphs

joints

Contains some kind of data related to joints between bones of the armature, is called by skeletonengine.py

measures

Contains measurement data

morphs

pgroups

Polygon Index

  • Data = Polygon Index

phenotypes

Morphs for each base model that change the character based on geographic location

poses

Pose JSON files for each base model

presets

Morphs to describe different body types

textures

The texture maps for MB-Lab

Contains the following -

  • Albedo map

  • Bump map

  • Displacement data (Red = Details, Green = Age factor, Blue = Tone factor, Alpha = Mass factor)

  • Anime albedo

  • Eye texture (legacy for export to other rendering engines)

  • Example human_female_albedo.png

transformations

vertices

Contains vertex information for the base mesh.

vgroups

Contains vertex group data

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