Instance Transform

Represents an instance’s position, rotation, and scale

FloraInstanceTransform is a lightweight struct used to represent an instance’s position, rotation, and scale—either relative to a parent (local space) or in world space when no parent is assigned.

Its design and API are based on Unity’s LocalTransform from the Entities package.

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Usage

Defining an Instance Transform

Instances can be placed using local-space transform data relative to a parent Transform:

var localTransform = new FloraInstanceTransform(localPosition, localRotation, localScale);
FloraSystem.Instance.CreateInstance(prefab, this.transform, localTransform);

Converting from a Unity Transform

You can construct a FloraInstanceTransform from a Transform, in either local or world space:

var local = FloraInstanceTransform.FromUnityTransform(this.transform, Space.Self);
var world = FloraInstanceTransform.FromUnityTransform(this.transform, Space.World);

Writing Instance Transforms

To update an instance’s transform after creation:

FloraSystem.Instance.UpdateInstanceWorldTransform(handle, transform);

You can also update multiple instances at once using arrays or native containers.

Transform Composition and Manipulation

FloraInstanceTransform includes utility methods for manipulating transform data:

transform = transform.RotateY(math.radians(90)).Translate(new float3(0, 1, 0));