Example of laser pointer particles??

[Please remove MODEREATED version in Scripting Library.] I'm asking a question. Thanks.

I'd like to find an example of a particle script that does a laser pointer. I've been playing for a while and read the llParticleSystem() wiki, but can't get a long line that looks like a laser pointer. All I can make is a short red line - 1 m or so long.

I need something many meters long - 50m or more. And so I can direct it. I'll figure the rotations if I know where to put them in. I"m gonna look at PSYS_SRC_TARGET_KEY, but I'd rather have a beam based on source prim rotation to start with.

Thanks much,

wwv

More or less impossible with the particle system, you're better off using a textured prim, but even then it wouldn't be that long (10 m). Unless you find a super thin gigantic cylinder

This is something I very quickly threw together, not sure it'd satisfy your requirements but it might be a good starting point. You'll need to adjust the PSYS_SRC_BURST_RATE depending on the distance to target (which is llGetOwner() currently). Adjusting the X-scale will vary the thickness of the beam, Y-scale will vary how long each particle is (shorter ones look better when looking along the beam but can be choppy viewed perpendicular to the beam). Colour interpolation is only to show you clearly how the particles are split. Without interpolated colour it should make a good consistent beam. Milage may vary from user to user, as number of particles in area and users preferences mean that not all particles are shown for some.

[PSYS_PART_FLAGS,0 | PSYS_PART_FOLLOW_SRC_MASK | PSYS_PART_FOLLOW_VELOCITY_MASK | PSYS_PART_TARGET_LINEAR_MASK | PSYS_PART_INTERP_COLOR_MASK | PSYS_PART_INTERP_SCALE_MASK | PSYS_PART_TARGET_POS_MASK, 
PSYS_SRC_PATTERN, PSYS_SRC_PATTERN_DROP, 
PSYS_PART_START_ALPHA, 1.0, 
PSYS_PART_START_COLOR, <1.0, 0.0, 0.0>, 
PSYS_PART_END_ALPHA, 1.0, 
PSYS_PART_END_COLOR, <0.0, 1.0, 0.0>, 
PSYS_PART_START_SCALE, <0.05, 0.25, 0>, 
PSYS_PART_END_SCALE, <0.05, 0.25, 0>, 
PSYS_SRC_ACCEL, <0, 0, 0>, 
PSYS_SRC_OMEGA, <0, 0, 0>, 
PSYS_PART_MAX_AGE, 1.0, 
PSYS_SRC_MAX_AGE, 0.0, 
PSYS_SRC_ANGLE_BEGIN, 0.0, 
PSYS_SRC_ANGLE_END, 360.0, 
PSYS_SRC_BURST_PART_COUNT, 1, 
PSYS_SRC_BURST_RADIUS, 0.0, 
PSYS_SRC_BURST_RATE, 0.05, 
PSYS_SRC_BURST_SPEED_MIN, 0.0, 
PSYS_SRC_BURST_SPEED_MAX, 0.0, 
PSYS_SRC_TARGET_KEY, llGetOwner(), 
PSYS_SRC_TEXTURE, "34f2d0b0-6afd-c141-9562-b2d12d24ae4b" ]

Generated with nand Nerd's Web-based Particle System Interface

you go nand nerd! haha

Nand,

Thanks very much... This will help me understand how to solve my problem.

BTW... Not clear why | PSYS_PART_FOLLOW_TARGET_POS_MASK

caused a compile error. Looks like it's undefined?? I removed this and all was well.

How did that happen? Did this change in the last few days??

Thanks,

WWV

That's because Nand's particle system generator has a bug in it.

The correct value is PSYS_PART_TARGET_POS_MASK.

*slaps head* Doh! I'll run off now and fix that.