Instance Property

simdRotation

The node’s orientation, expressed as a rotation angle about an axis. Animatable.

Declaration

var simdRotation: simd_float4 { get set }

Discussion

The four-component rotation vector specifies the direction of the rotation axis in the first three components and the angle of rotation (in radians) in the fourth. The default rotation is the zero vector, specifying no rotation. Rotation is applied relative to the node’s simdPivot property.

The simdRotation, simdEulerAngles, and simdOrientation properties all affect the rotational aspect of the node’s simdTransform property. Any change to one of these properties is reflected in the others.

You can animate changes to this property’s value. See Animating SceneKit Content.

See Also

Managing the Node's Transform

var simdTransform: simd_float4x4

The transform applied to the node relative to its parent. Animatable.

var simdPosition: simd_float3

The translation applied to the node. Animatable.

var simdEulerAngles: simd_float3

The node’s orientation, expressed as pitch, yaw, and roll angles in radians. Animatable.

var simdOrientation: simd_quatf

The node’s orientation, expressed as a quaternion. Animatable.

var simdScale: simd_float3

The scale factor applied to the node. Animatable.

var simdPivot: simd_float4x4

The pivot point for the node’s position, rotation, and scale. Animatable.