1 default {
  2     state_entry() {
  3         llParticleSystem(  [ 
  4            PSYS_SRC_TEXTURE, llGetInventoryName(INVENTORY_TEXTURE, 0), 
  5            PSYS_PART_START_SCALE, <15.5,15.5, 0>,  PSYS_PART_END_SCALE, <0,2.0, 0>, 
  6            PSYS_PART_START_COLOR, <.2,.2,1>,       PSYS_PART_END_COLOR, <.5,1,1>, 
  7            PSYS_PART_START_ALPHA, 1.0,            PSYS_PART_END_ALPHA, 0.0,     
  8          
  9            PSYS_SRC_BURST_PART_COUNT, 1, 
 10            PSYS_SRC_BURST_RATE,  0.01,  
 11            PSYS_PART_MAX_AGE, 3.4, 
 12            PSYS_SRC_MAX_AGE, 0.0,  
 13         
 14            PSYS_SRC_PATTERN, 8, // 1=DROP, 2=EXPLODE, 4=ANGLE, 8=ANGLE_CONE,
 15            PSYS_SRC_ACCEL, <0.0,0.0,0.0>,  
 16            
 17         // PSYS_SRC_BURST_RADIUS, 0.0,
 18            PSYS_SRC_BURST_SPEED_MIN, .01,   PSYS_SRC_BURST_SPEED_MAX, 3.01, 
 19         
 20            PSYS_SRC_ANGLE_BEGIN,  1*DEG_TO_RAD,        PSYS_SRC_ANGLE_END, 0*DEG_TO_RAD,  
 21            PSYS_SRC_OMEGA, <0,0,0>, 
 22         
 23         // PSYS_SRC_TARGET_KEY,      llGetLinkKey(llGetLinkNum() + 1),       
 24               
 25            PSYS_PART_FLAGS, ( 0      
 26                                 | PSYS_PART_INTERP_COLOR_MASK   
 27                                 | PSYS_PART_INTERP_SCALE_MASK   
 28                                 | PSYS_PART_EMISSIVE_MASK   
 29                                 | PSYS_PART_FOLLOW_VELOCITY_MASK
 30                              // | PSYS_PART_WIND_MASK            
 31                              // | PSYS_PART_BOUNCE_MASK          
 32                              // | PSYS_PART_FOLLOW_SRC_MASK     
 33                              // | PSYS_PART_TARGET_POS_MASK     
 34                              // | PSYS_PART_TARGET_LINEAR_MASK    
 35             ) ] );
 36     }
 37 }
 38 
 39 
 40 //                  (particle appearance settings)
 41 
 42 // TEXTURE, can be an "Asset UUID" key copied from a modable texture, or the name of a texture in the prim's inventory.
 43 // SCALE, vector's x and y can be 0.0 to 4.0.   z is ignored.  Values smaller than 0.04 might not get rendered. 
 44 // END_SCALE requires the INTERP_SCALE_MASK
 45 // COLOR, red,green,blue values from 0,0,0(black) to 1,1,1 (white)
 46 // ALPHA, 0.0 = invisible, less than 0.1 may not get seen, 1.0 = solid/opaque  
 47 // END_COLOR and END_ALPHA both require INTERP_COLOR_MASK
 48          
 49 //                  (emitter controls)
 50 
 51 // BURST_PART_COUNT  1 to 4096
 52 // BURST_RATE 0.0 to 60.0?  # of seconds between bursts, smaller = faster  
 53 // PART_MAX_AGE, 0.0 to 30.0, particle lifespan in seconds
 54 // SRC_MAX_AGE - emitter auto-off interval 0.0 never times out. 1.0 to 60.0.
 55 
 56 //                  (placement and movement settings)
 57                 
 58 // PATTERN,   
 59   //  DROP, no initial velocity, direction or distance from emitter
 60   //  EXPLODE, spray in all directions
 61   //  ANGLE, "fan" shape defined by ANGLE BEGIN and END values
 62   //  ANGLE_CONE, "ring" or "cone" shapes defined by ANGLE BEGIN and END values
 63 
 64 // ACCEL, x,y,z 0.0 to 50.0?  sets a constant force, (affects all patterns)
 65 
 66 // RADIUS  0.0 to 50.0?  distance from emitter to create new particles
 67         // (Useless with DROP pattern and FOLLOW_SRC option)
 68         
 69 // SPEED, 0.01 to 50.0?  Sets range of starting velocities.  (Useless with DROP pattern.)
 70         
 71 // ANGLE_BEGIN & END,  0.0 (up) to PI (down),  (Only useful with ANGLE patterns)
 72 
 73 // OMEGA,  x,y,z  0.0 to PI?  Sets distance to rotate emitter nozzle between bursts
 74                               // (Only useful with ANGLE patterns)
 75         
 76 // TARGET_KEY,  "key", (requires a TARGET option below) can be many things :
 77          // llGetOwner()
 78          // llGetKey() target self 
 79          // llGetLinkKey(1) target parent prim
 80          // llGetLinkKey(llGetLinkNum() + 1) target next prim in link set       
 81               
 82 //              (on/off options that affect how particles look)
 83 
 84 // EMISSIVE identical to "full bright" setting on prims        
 85 // FOLLOW_VELOCITY particle texture 'tilts' towards the direction it's moving
 86 // INTERP_COLOR causes color and alpha to change over time
 87 // INTERP_SCALE causes particle size to change over time
 88 
 89 //              (on/off options that affect how particles move)
 90 
 91 // BOUNCE  particles can't go below altitude of emitter      
 92 // WIND sim's wind will push particles around
 93 // FOLLOW_SRC makes particles move (but not rotate) if their emitter moves, (disables RADIUS)
 94 // TARGET_POS causes particles to home in on a target object
 95 // TARGET_LINEAR forces a DROP pattern like behavior and disables wind.