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• octaves : ParticleUniverse::MatrixForceFieldCalculationFactory::MatrixRequest
• orientation : ParticleUniverse::PhysicsActor , ParticleUniverse::PhysicsActorDesc , ParticleUniverse::VisualParticle
• originalColour : ParticleUniverse::VisualParticle
• originalDirection : ParticleUniverse::Particle
• originalDirectionLength : ParticleUniverse::Particle
• originalOrientation : ParticleUniverse::VisualParticle
• originalPosition : ParticleUniverse::Particle
• originalScaledDirectionLength : ParticleUniverse::Particle
• originalVelocity : ParticleUniverse::Particle
• ownDimensions : ParticleUniverse::VisualParticle