Dust Up Script

I saw a few hover crafts and helicopters kicking up dust when they get low to the ground and was wondering if anyone knows where I can get this script?

IM me in world... thanks

if you can't be bothered to check your own post request, why should we bother to answer it?

that said I'm not inworld so it's a moot point, but I imagine it uses a particle system, if you want to learn how to make particle scripts I'd suggest checking out the Particle laboratory inworld... excellent source of learning what all the parameters do and how to tweak them, with several demo scripts

I second the suggestion to check out The Particle Laboratory! It's a fantastic place to learn about exactly the kinds of effects the OP mentioned, and the owner is extremely polite, kind, and helpful.

More info and a teleport link at http://world.secondlife.com/place/815b225b-23d8-a087-3ee6-6120b07876d0

I'm confused by your first statement. I check my posts all the time..... but... if someone was in-world they could IM me.

Anyway... thanks for the advice. I've been to the PL many times... maybe I overlooked it.

I think this is commonly done by actually rezzing a little temporary transparent emitter object that lands on the ground and poofs up particle dust from there. It could also be done from a prim on the vehicle itself, which would work better on build-restricted land but would make options for leaving a dust cloud behind or being able to descend further than the maximum height from which the dust is generated a little more limited (also may restrict a little more what options you can use for the particle emission; e.g. bounce).

Try this:
//=======================================================

float maxsysage = 0.0;
float maxspeed = 0.3;
float minspeed = 0.15;
float burstrad = 0.0;
integer burstcount = 20;
float burstrate = 0.01;
float outangle = 0.075;
float inangle = 0;
vector omega = <0.0,0.0,0.0>;
float startalph = 0.75;
float endalph = 0.015;
vector startscale = <2.0,2.0,2.0>;
vector endscale = <4.0,4.0,4.0>;
float maxage = 1.7;
vector accel = <0.0, 0.0, 1.0>;
string texture = "";

vector pos;
vector vel;
vector up;
float ground = 0.0;
float water = 0.0;
float height = 0.0;
float occilation = 1.25;
float start_mult = 0.1;
float rad;
integer occilate = TRUE;
integer started = FALSE;

Particles(integer part_on)
{
maxage = 0.001;
if (!part_on) jump particles;
vel = llGetVel() * 0.2;
ground = llGround(vel);
water = llWater(vel);
if (ground < water) {
maxspeed = 2.5;
minspeed = 1.25;
occilation = 2.0;
endscale = <3.0,3.0,3.0>;
maxage = 2.0;
ground = water;
texture = "7f70a931-6300-8dbc-caca-8b09a9c2cf11";
} else {
maxspeed = 1.75;
minspeed = 0.875;
occilation = 1.25;
endscale = <4.0,4.0,4.0>;
maxage = 1.75;
texture = "30f2fa72-3519-65c5-f4da-85a34c29cc3f";
}
pos = llGetPos() + vel;
up = llRot2Up(llGetRot());
height = pos.z - ground - 0.5;
height += (1.0 - up.z) * height;
if (height < 6.0 && height > -1.0) {
rad = 3.5 + (occilate * occilation);
outangle = PI - llAtan2(rad, height);
inangle = outangle + 0.15;
burstrad = rad / llSin(outangle);
startalph = ((llFabs(height) / -8.57) + 0.8 - (!occilate * 0.15)) * start_mult;
endalph = ((llFabs(height) / -200.0) + 0.04) * start_mult;
maxsysage = 0.0;
part_on = TRUE;
} else {
maxsysage = 0.01;
part_on = FALSE;
}

@particles;
//llParticleSystem([]);
llParticleSystem([PSYS_PART_FLAGS,
PSYS_PART_INTERP_COLOR_MASK |
PSYS_PART_INTERP_SCALE_MASK |
//PSYS_PART_FOLLOW_VELOCITY_MASK |
PSYS_PART_WIND_MASK,
PSYS_SRC_PATTERN,
PSYS_SRC_PATTERN_ANGLE_CONE,
PSYS_PART_START_COLOR, <1.0, 1.0, 1.0>,
PSYS_PART_START_ALPHA, startalph,
PSYS_PART_END_COLOR, <1.0, 1.0, 1.0>,
PSYS_PART_END_ALPHA, endalph,
PSYS_PART_START_SCALE, startscale,
PSYS_PART_END_SCALE, endscale,
PSYS_PART_MAX_AGE, maxage,
PSYS_SRC_ACCEL, accel,
PSYS_SRC_TEXTURE, texture,
PSYS_SRC_BURST_RATE, burstrate,
PSYS_SRC_ANGLE_BEGIN, inangle,
PSYS_SRC_ANGLE_END, outangle,
PSYS_SRC_BURST_PART_COUNT, burstcount,
PSYS_SRC_BURST_RADIUS, burstrad,
PSYS_SRC_BURST_SPEED_MIN, minspeed,
PSYS_SRC_BURST_SPEED_MAX, maxspeed,
PSYS_SRC_MAX_AGE, maxsysage,
PSYS_SRC_OMEGA, omega
]);

if (!part_on) {
llParticleSystem([]);
} else {
if (started) {
if (start_mult < 1.0) {
start_mult += 0.075;
}
} else {
if (start_mult > 0.0) {
start_mult -= 0.05;
} else {
llSetTimerEvent(0.0);
llParticleSystem([]);
}
}
occilate = !occilate;
}
}
default
{
state_entry()
{
//llSetAlpha(0.0,ALL_SIDES);
llSetAlpha(1.0,ALL_SIDES);
llSetTimerEvent(0.0);
Particles(TRUE);
}

touch_start(integer total_number)
{

started = TRUE;
Particles(TRUE);
start_mult = 0.1;
llSetTimerEvent(0.01);


}

timer()
{
Particles(TRUE);
}


}

//=================================================

PS I didn't write it. I got it from the Z4 Attack Chopper by David Street.

Thanks for the script but it didn;t work

Sorry, it's not meant to offend, just years of people posting, "hi I want this, send me a message, because I won't check for replies"... sorry if I jumped the jumped the gun.

Worked great for me

can you IM me inworld and show me? When I put this script in a box it looked very strange. Thanks.

Hi Shayna-

Got your IM in world... but figured I'd answer you here instead, just to be silly. =)

Sorry, no, the particle laboratory does not have a 'dust-up' helicopter sample template. If I were to create one, I would probably start with the "STEAM" example (found on the sandbox level), and I'd make the following changes:

1) Increase SCALE_START to <3,3,0>
2) Slightly increase SPEED_MAX to around 0.5
3) I'd shorten the PART_MAX_AGE to around 1.0
4) Shorten BURST_RATE to 0.02
5) Increase BURST_RADIUS to 2.0

Hewee is right on target though, a seperate prim just above ground level should be emitting these particles, so that they look proper... =)