Skeleton

Structures and linked data definitions for skeleton

The bone structure contains the local transformation for the bone defined. This is done by provided a vec3 for the position and scale, and a vec4 for the rotation. The local matrix and world matrix are then calulated from these values.

JSON

{
	"parentIndex": 0,
	"name" : "bone-000",
	"position" : {
		"x" : 0,
		"y" : 0,
		"z" : 0
	},
	"rotation" : {
		"x" : 0,
		"y" : 0,
		"z" : 0,
		"w" : 1
	},
	"scale" : {
		"x" : 1,
		"y" : 1,
		"z" : 1
	}
}

Type

type DashBone = {
	name: string;
	parentIndex: number | null | undefined;
	position: DashVec3 | undefined;
	rotation: DashVec4 | undefined;
	scale: DashVec3 | undefined;
}

Terms

parentIndex

The parent index of the bone by position in the array. Bones should be organized in the array such that the root bone comes are index 0 and child bones are defined after their parent bones. A null value for this field indicates their is no parent bone, implying the root bone.

Default: null

name

The name of the bone, such as shoulder, neck, knee to define the functionality of which connection the bone is intended to represent.

No default value is generated for this field onload.

position

The local position for the bone relative to its parent.

Default: { x: 0, y: 0, z: 0 }

rotation

The local rotation for the bone relative to its parent.

Default: { x: 0, y: 0, z: 0, w: 1 }

scale

The scale value for the bone.

Default: { x: 1, y: 1, z: 1 }

Binary

Struct

typedef struct {
	char name[0x20];
	uint32_t index;
	uint32_t parentIndex;
	DashVec3 position;
	DashVec4 rotation;
	DashVec3 scale;
} DashBone;

Table

Offset	0x00	0x04	0x08	0x0c
0x0010	name	0000	0000	0000
0x0020	0000	0000	0000	0000
0x0000	index	parentIndex	position.x	position.y
0x0030	position.z	rotation.x	rotation.y	rotation.z
0x0040	rotation.w	scale.x	scale.y	scale.z

Fields

name

The name of the bone, such as shoulder, neck, knee to define the functionality of which connection the bone is intended to represent.

No default value is generated for this field onload.

parentIndex

The parent index of the bone by position in the array. Bones should be organized in the array such that the root bone comes are index 0 and child bones are defined after their parent bones. As the root bone does not have a parent, this value will be ignored for the first element in the array.

Default: 0

position

The local position for the bone relative to its parent.

Default: { 0.0f, 0.0f, 0.0f }

rotation

The local rotation for the bone relative to its parent.

Default: { 0.0f, 0.0f, 0.0f, 1.0f }

scale

The scale value for the bone.

Default: { 1.0f, 1.0f, 1.0f }