Script interface for a Particle.
| angularVelocity | The angular velocity of the particle. | 
| angularVelocity3D | The 3D angular velocity of the particle. | 
| position | The position of the particle. | 
| randomSeed | The random seed of the particle. | 
| remainingLifetime | The remaining lifetime of the particle. | 
| rotation | The rotation of the particle. | 
| rotation3D | The 3D rotation of the particle. | 
| startColor | The initial color of the particle. The current color of the particle is calculated procedurally based on this value and the active color modules. | 
| startLifetime | The starting lifetime of the particle. | 
| startSize | The initial size of the particle. The current size of the particle is calculated procedurally based on this value and the active size modules. | 
| startSize3D | The initial 3D size of the particle. The current size of the particle is calculated procedurally based on this value and the active size modules. | 
| velocity | The velocity of the particle. | 
| GetCurrentColor | Calculate the current color of the particle by applying the relevant curves to its startColor property. | 
| GetCurrentSize | Calculate the current size of the particle by applying the relevant curves to its startSize property. | 
| GetCurrentSize3D | Calculate the current 3D size of the particle by applying the relevant curves to its startSize3D property. |