Script interface for the Size By Speed module.
See Also: ParticleSystem, ParticleSystem.sizeBySpeed.
| enabled | Enable/disable the Size By Speed module. |
| range | Apply the size curve between these minimum and maximum speeds. |
| separateAxes | Set the size by speed on each axis separately. |
| size | Curve to control particle size based on speed. |
| x | Size by speed curve for the X axis. |
| y | Size by speed curve for the Y axis. |
| z | Size by speed curve for the Z axis. |