llFrand with glow

i dont know to much about llFrand but im trying to make a type of flashing light with glow i wont to make it do random flashes from .1 to .01 seconds here is what i have, not sure if it is working right

default
{
    state_entry()
    {
        llSetTimerEvent(0);
        llSetPrimitiveParams([25,ALL_SIDES,0]);
    }

    touch_start(integer total_number)
    {
        llSetTimerEvent(.01);
    }
    timer()
    {
        llSetPrimitiveParams([25,ALL_SIDES,.1]);
        llSetPrimitiveParams([25,ALL_SIDES,.2]);
        llSetPrimitiveParams([25,ALL_SIDES,.3]);
        llSetPrimitiveParams([25,ALL_SIDES,.2]);
        llSetPrimitiveParams([25,ALL_SIDES,.1]);
        llSetTimerEvent(llFrand(.01-.1));
    }
}

Considering that there is a 0.2 second delay per llSetPrimitiveParams call, a timer interval of 0.01 is a little silly.

serprimitiveparams has a timeout of 0.2seconds. you use it 5 times, that makes your 5-step-glow take 1 second.

then you set a timer to wait for 0.01 to 0.1 seconds.

go figure, the timing is pathetic.

opinion noted >.>


but... that still dosent help me in any way am i doing the llFrand right? ..........

You have it in the right place, but the time frames you have for llfrand won't work. With five calls to llSetPrimitiveParams at 0.2s a piece, it'll take 1s to process. At best you'll end up with an un-noticable delay between each round of setting glow.

llFrand generates a random number between 0.0 and the number you give it. In your script you've passed it -0.09 (Which is 0.01-0.1, that's a minus sign).

What you want to do is: llSetTimerEvent(llFrand(0.09) + 0.01);
That will generate a number between 0.0 and 0.09, and adding 0.01 to it makes the range 0.01 to 0.1.

Ad explained by those above, this is pointless for two reasons:
1) llSetPrimitiveParams sleeps the script for 0.2 seconds, and
2) You can't call a timer event faster than 10 times a second anyway.

To make your glow really "dance", you'll want to make a texture with varying shades of grey and animate it with llSetTextureAnim.
http://wiki.secondlife.com/wiki/LlSetTextureAnim
This will all be client-side and thus low lag.

Yeah. Animating the texture, rotating (llTargetOmega()) a textured object or prim when appropraite for the application, and emitting particles can all interact in very interesting ways with glow. For example, if you have an all/mostly black sphere with glow and emit particles just far enough out to be visible above the surface, the effect can be pretty awesome.