public static extern void mpScatterParticlesBoxTransform(int context, ref Matrix4x4 trans, int num, ref MPSpawnParams sp);
public static extern void mpScatterParticlesBox(int context, ref Vector3 center, ref Vector3 size, int num, ref MPSpawnParams sp);
public static extern void mpScatterParticlesSphere(int context, ref Vector3 center, float radius, int num, ref MPSpawnParams sp);