Documentation/Engine/Mover model group

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Mover model group is a new mover definition unit. Idea of this new unit is to have a system which can easily combine compabible models and animations. The main use is for characters to remove the need of definition for every combination of models and animations. Moreover these mover groups can use props in separate models and easily "skin" them to specific bones.

The whole system consists of four units:

Mover desc

Unit mover_desc represents model and it's data. It is located in /base/def/world/mover_desc.sii.

mover_desc : mover_desc.worker_3 {
    model_desc: "/model/mover/characters/new_generation/new/models/man/worker_vest/worker_vest_nemiro_lod0.pmd"

    lods[0]: "/model/mover/characters/new_generation/new/models/man/worker_vest/worker_vest_nemiro_lod1.pmd"
    lods[1]: "/model/mover/characters/new_generation/new/models/man/worker_vest/worker_vest_nemiro_lod2.pmd"
    lods[2]: "/model/mover/characters/new_generation/new/models/man/worker_vest/worker_vest_lod3.pmd"
	
    lod_distances[0]: 10
    lod_distances[1]: 30
    lod_distances[2]: 90

    group_tags[]: human
    group_tags[]: man
    group_tags[]: cauca
    group_tags[]: worker
}

Properties:

  • model_desc Model descriptor.
  • model_coll Model collision.
  • lods Model lod descriptors.
  • lod_distances Lod distances.
  • group_tags Group tags. More about it in mover_model_group section.

Mover anim

Unit mover_anim represents animation and its data. It is located in /base/def/world/mover_anim.sii.

mover_anim : mover_anim.sweeper {
    model_anim: "/model/mover/characters/new_generation/animations/universal/sweeping_anim.pma"

    group_tags[]: human
    group_tags[]: man
    group_tags[]: sweeper

    props[]: mover_props.sweeper.broom
}

Properties:

  • model_anim Animation descriptor.
  • group_tags Group tags. More about it in mover_model_group section.
  • props Array of link pointers to animation props.

Mover anim props

Unit mover_anim_props represents animation props and its settings. It is located in /base/def/world/mover_anim_props.sii.

mover_anim_props : mover_props.sweeper.broom {
    model: "/model/mover/characters/new_generation/models/props/independent/broom.pmd"
    bone_a: lefthand
    bone_b:	righthand
    bone_offset_a: (0.03, 0.08, 0)
    bone_offset_b: (-0.2, 0.16, -0.15)
    model_offset: (0.0, 0.0, -0.67)
    model_rotation: (0.0, 0.0, 0.0)
}

Properties:

  • bone_a First bone to "skin" prefix.
  • bone_b Second bone to "skin" prefix.
  • bone_offset_a Skin offset for the first bone.
  • bone_offset_b Skin offset for the second bone.
  • model Props model descriptor.
  • model_animation Props model animation.
  • sync_animation Force time synchronization between props animation and mover animation.
  • model_offset Props placement offset.
  • model_rotation Props placement rotation.

How does it work?

Props is rendered and placed as separate model. Using bone A and bone B we can attach the props to the mover skeleton. There are three possible setups.

1) No bones are set.
Props is placed to the mover origin plus model_offset and with zero rotation plus model_rotation.
2) Bone A is set only.
Props is placed to the bone A placement plus bone_offset_a plus model_offset with bone A rotation plus model_rotation.
3) Bone A and bone B are set.
Props is placed to the bone A placement plus bone_offset_a plus model_offset with rotation given by direction vector (from bone B placement plus bone_offset_b to bone A placement plus bone_offset_a) plus model_rotation