Instance Transform

Represents an instance’s position, rotation, and scale

This struct is used throughout Flora to describe the transform of an instance either relative to a parent (local space) or in world space when no parent is defined. Most of its API is derived from the entities package struct: LocalTransform.

Usage

Defining an Instance Transform

Instances are placed using local transform data relative to a parent:

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

Transforms can be applied to an existing instance:

FloraSystem.Instance.UpdateInstanceWorldTransform(handle, transform);

Transform Composition and Manipulation

The struct supports applying translations, rotations, and scaling directly:

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