The rendered size, in units of the scene’s world coordinate space, of the particle image. Animatable.
- iOS 8.0+
- macOS 10.10+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 3.0+
SceneKit uses this value for both the width and height of the
particle texture at render time. (If you use the
stretch property to stretch particles in their direction of motion, the
particle value determines the width and height before stretching.) You can randomize the sizes of newly spawned particles with the
The default value is
1, specifying that particle images appear one unit high and one unit wide in the scene’s world coordinate space.
You can animate changes to this property’s value. See Animating SceneKit Content.