# Blender's Animation System Architecture

stateDiagram-v2
  direction TB

  AnimationDataKernel: Animation Data / Kernel
  EvaluationDepsgraph: Evaluation / Depsgraph
  EditorsUI: Editors/UI
  ShapeKeys: Shape Keys
  VertexWeights: Vertex Weights
  Autokeying: Auto-keying
  fcurvedriver.c: fcurve_driver.c
  fcurvecache.c: fcurve_cache.c
  SpaceGraph: Space Graph
  AnimationFiltering: Animation Filtering
  AnimUtils: Anim Utils
  NLAEditor: NLA Editor
  objectadd.cc: object_add.cc
  SpaceAction: Space Action
  poseslide.c: pose_slide.c
  nlabuttons.c: nla_buttons.c
  nlachannels.c: nla_channels.c
  nladraw.c: nla_draw.c
  nlaedit.c: nla_edit.c
  nlaselect.c: nla_select.c
  21677769539609: 2-1677769539609
  transformconvertaction.c: transform_convert_action.c
  transformationconvert.graph.c: transformation_convert.graph.c
  transformconvertnla.c: transform_convert_nla.c
  transformconvert.c: transform_convert.c
  transformmodetimeslide.c: transform_mode_timeslide.c
  transformmodetimescale.c: transform_mode_timescale.c
  transformmode.c: transform_mode.c
  transformsnapanimation.c: transform_snap_animation.c
  armatureupdate.c: armature_update.c
  curvedeform.c: curve_deform.c
  animmarkers.c: anim_markers.c
  MODarray.cc: MOD_array.cc
  overlayextra.cc: overlay_extra.cc
  DNAactiontypes.h: DNA_action_types.h
  DNAanimtypes.h: DNA_anim_types.h
  DNAarmaturedefaults.h: DNA_armature_defaults.h
  DNAarmaturetypes.h: DNA_armature_types.h
  DNAcurvetypes.h: DNA_curve_types.h
  DNAipotypes.h: DNA_ipo_types.h
  DNAnlatypes.h: DNA_nla_types.h
  DNAarmaturetypes.h: DNA_armature_types.h
  DNAcurvetypes.h: DNA_curve_types.h
  DNAipotypes.h: DNA_ipo_types.h
  Files: Files
  keyframesedit.c: keyframes_edit.c
  graphdraw.c: graph_draw.c
  graphview.c: graph_view.c
  spacegraph.c: space_graph.c
  DrawingCode: Drawing Code
  AnimationData: Animation Data
  animchannelsdefines.c: anim_channels_defines.c
  timescrubui.c: time_scrub_ui.c
  animdraw.c: anim_draw.c
  animdeps.c: anim_deps.c
  animsys.c: anim_sys.c
  GreasePencil: Grease Pencil
  animvisualization.c: anim_visualization.c
  ANIManimdatagetcontext: ANIM_animdata_get_context
  animfilter.c: anim_filter.c
  animdata.c: anim_data.c
  gpencilconvert.c: gpencil_convert.c
  interfaceanim.cc: interface_anim.cc
  keyframesedit.c: keyframes_edit.c
  keyframesgeneral.c: keyframes_general.c
  keyframesdraw.c: keyframes_draw.c
  animpath.c: anim_path.c
  actionedit.c: action_edit.c
  actiondraw.c: action_draw.c
  spaceaction.c: space_action.c
  armaturepose.cc: armature_pose.cc
  DrawingCode: Drawing Code
  posebackup.cc: pose_backup.cc
  layerutils.c: layer_utils.c
  actionbones.c: action_bones.c
  actionmirror.cc: action_mirror.cc
  nlaedit.c: nla_edit.c
  keyframeskeylist.cc: keyframes_keylist.cc
  keyframesgeneral.c: keyframes_general.c
  armatureselection.cc: armature_selection.cc
  armaturedeform.c: armature_deform.c
  armatureadd.c: armature_add.c
  animdeps.c --> graphview.c
  animdeps.c --> spaceaction.c
  animdeps.c --> actionedit.c
  animdeps.c --> spacegraph.c
  area.cc --> spacegraph.c
  ANIManimdatagetcontext --> graphview.c
  ANIManimdatagetcontext --> spaceaction.c
  ANIManimdatagetcontext --> actionedit.c
  ANIManimdatagetcontext --> spacegraph.c
  view2d.cc --> actiondraw.c
  view2d.cc --> spaceaction.c
  view2d.cc --> spacegraph.c
  view2d.cc --> graphdraw.c
  timescrubui.c --> spacegraph.c
  fcurve.c --> object.c
  fcurve.c --> fcurvecache.c
  fcurve.c --> ipo.c
  fcurve.c --> keyframing.c
  fcurve.c --> actionmirror.cc
  fcurve.c --> action.c
  fcurve.c --> fmodifier.c
  fcurve.c --> animdata.c
  fcurve.c --> nla.c
  fcurve.c --> animsys.c
  fcurve.c --> drivers.c
  fcurve.c --> poseslide.c
  graphdraw.c --> spacegraph.c
  spacetypes.c --> spaceaction.c
  spacetypes.c --> spacegraph.c
  constraint.c --> animpath.c
  constraint.c --> action.c
  constraint.c --> armature.c
  constraint.c --> armatureadd.c
  animdraw.c --> graphview.c
  animdraw.c --> spaceaction.c
  animdraw.c --> spacegraph.c
  animdraw.c --> graphdraw.c
  armature.c --> actionmirror.cc
  armature.c --> action.c
  animfilter.c --> actiondraw.c
  animfilter.c --> graphview.c
  animfilter.c --> actionedit.c
  animfilter.c --> graphdraw.c
  animvisualization.c --> action.c
  RNA --> graphview.c
  RNA --> actionedit.c
  object.c --> animpath.c
  object.c --> action.c
  NLA --> 31677766282721
  NLA --> 21677769406494
  NLA --> graphdraw.c
  NLA --> actionedit.c
  NLA --> 21677769432166
  NLA --> 21677769391552
  NLA --> 21677769539609
  NLA --> graphview.c
  NLA --> animdraw.c
  animsys.c --> armaturepose.cc
  animsys.c --> action.c
  animdata.c --> action.c
  animdata.c --> animsys.c
  animdata.c --> armature.c
  animdata.c --> AnimationData
  nla.c --> ipo.c
  nla.c --> keyframing.c
  nla.c --> NLA
  nla.c --> keyframesedit.c
  nla.c --> poseslide.c
  nla.c --> animdata.c
  nla.c --> fcurve.c
  nla.c --> animsys.c
  nla.c --> NLA
  AnimationData --> animfilter.c
  AnimationData --> graphview.c
  AnimationData --> actionedit.c
  AnimationData --> graphdraw.c
  RNA --> RNA
  RNA --> RNA
  DrawingCode --> actiondraw.c
  DrawingCode --> graphdraw.c
  DrawingCode --> DrawingCode
  action.c --> animdata.c
  action.c --> actionmirror.cc
  action.c --> action.c
  RNA --> animdata.c
  RNA --> action.c
  RNA --> animsys.c
  curve.cc --> Curve
  curve.cc --> Curve
  Curve --> graphdraw.c
  animchannelsdefines.c --> animfilter.c
  animchannelsdefines.c --> actiondraw.c
  animchannelsdefines.c --> graphdraw.c
  interface.cc --> actiondraw.c
  interface.cc --> graphdraw.c
  actionbones.c --> armaturepose.cc
  actionbones.c --> posebackup.cc
  fcurvecache.c --> actionmirror.cc
  objectadd.cc --> nla.c
  interfaceanim.cc --> graphdraw.c
  actiondraw.c --> spaceaction.c
  transformconvertaction.c --> NLA
  transformconvertaction.c --> Keyframes
  transformationconvert.graph.c --> NLA
  transformationconvert.graph.c --> Keyframes
  transformconvertnla.c --> NLA
  transformconvert.c --> NLA
  transformmodetimeslide.c --> NLA
  transformmodetimescale.c --> NLA
  transformmode.c --> NLA
  transformsnapanimation.c --> NLA
  keyframesdraw.c --> actiondraw.c
  armatureupdate.c --> animpath.c
  armatureupdate.c --> fcurve.c
  curvedeform.c --> animpath.c
  displist.cc --> animpath.c
  Curve --> armature.c
  animmarkers.c --> actionedit.c
  animpath.c --> particle.cc
  animpath.c --> key.cc
  animpath.c --> vfont.cc
  animpath.c --> overlayextra.cc
  animpath.c --> MODarray.cc
  keyframesgeneral.c --> actionedit.c
  blendfile.cc --> ipo.c
  blendfile.cc --> blendfile.cc
  Gpencil --> actionedit.c
  FModifier --> actionedit.c
  keyframesedit.c --> actionedit.c
  key.cc --> object.c
  key.cc --> keyframing.c
  key.cc --> ipo.c
  key.cc --> animchannelsdefines.c
  key.cc --> curve.cc
  Key --> animfilter.c
  Sequencer --> animfilter.c
  node.cc --> animfilter.c
  NLAEditor --> fcurve.c
  layer.cc --> animfilter.c
  collection.cc --> animfilter.c
  blendfile.cc --> animfilter.c
  mask.cc --> animfilter.c
  armatureselection.cc --> armaturepose.cc
  armatureselection.cc --> posebackup.cc
  keyframesgeneral.c --> keyframesedit.c
  keyframe --> actionedit.c
  keyframe --> Keyframing
  customdata.cc --> curvedeform.c
  deform.cc --> curvedeform.c
  RNA --> posebackup.cc
  nlaedit.c --> keyframesedit.c
  action.c --> posebackup.cc
  action.c --> armature.c
  Keyframes --> Keyframing
  layerutils.c --> poseslide.c
  keyingsets.c --> keyframing.c
  keyframing.c --> gpencilconvert.c
  fcurvedriver.c --> constraint.c

  state anim_kernel {
    direction LR

    action.c --> anim_data.c
    action.c --> fcurves.c
    action.c --> anim_visualization.c
    action.c --> anim_sys.c
  }

  state UI {
    direction RL

    asset_browser: Asset Browsers
    asset_shelf: Asset Shelfs
    asset_views: Asset View Templates
  }