Linden Scripting Language Guide - Engineering Center

Appendix C. ConstantsParticle System ParametersPSYS_PART_FLAGSEach particle that is emitted by the particle system is simulated based on the following flags. To usemultiple flags, bitwise or (|) them together.PSYS_PART_FLAGS ValuesPSYS_PART_INTERP_COLOR_MASKInterpolate both the color and alpha from the start value to the end value.PSYS_PART_INTERP_SCALE_MASKInterpolate the particle scale from the start value to the end value.PSYS_PART_WIND_MASKParticles have their velocity damped towards the wind velocity.PSYS_PART_BOUNCE_MASKParticles bounce off of a plane at the object’s Z height.PSYS_PART_FOLLOW_SRC_MASKThe particle position is relative to the source object’s position.PSYS_PART_FOLLOW_VELOCITY_MASKThe particle orientation is rotated so the vertical axis faces towards the particle velocity.PSYS_PART_TARGET_POS_MASKThe particle heads towards the location of the target object as defined by PSYS_SRC_TARGET_KEY.PSYS_PART_EMISSIVE_MASKThe particle glows.PSYS_PART_RANDOM_ACCEL_MASK(not implemented)PSYS_PART_RANDOM_VEL_MASK(not implemented)PSYS_PART_TRAIL_MASK(not implemented)PSYS_SRC_PATTERNThe pattern which is used to generate particles. Use one of the following values:106