How Do I Set Certain Prims' Transparency?

[Zadd Xonfor]

Hello everyone,

 

I am new to scripting in Second Life. I simply have a linked object., I only want to change transparency in certain parts of the object.

 

Everything in the link I want transparent is named "Trans" and everything else is not named that. So how may I accomplish this?

[Rolig Loon]

float transp = 0.0:    // Or whatever ....integer i = llGetNumberOfPrims();while(i){    if (llGetLinkName(i) == "Trans")    {        llSetLinkAlpha(i, transp, ALL_SIDES);    }    --i;}

 

 

[Innula Zenovka]

When I do this sort of thing, I prefer to build a list of the prims I want to change, using a user function, something like this:

list prims_to_change;integer max;find_prims(){    prims_to_change =[];      max = llGetNumberOfPrims();     while(max--){        string s = llToLower(llStringTrim(llGetLinkName(max),STRING_TRIM));        //turn it lower case and clean up leading and trailng spaces, to be on the safe side        if("trans"==s){//if it's the right description            prims_to_change+=[max];//add to the list        }    }}

 I call that in state_entry, on_rez,  if (change & CHANGED_LINK) and anywhere else that looks sensible.

Then at run time, I read the list of prims, like this:

 touch_start(integer total_number)    {       toggle=!toggle;       max = -llGetListLength(prims_to_change);      do{           llSetLinkAlpha(llList2Integer(prims_to_change,max),(float)(1-toggle),ALL_SIDES);        }      while(++max);           }

 While it doesn't make a big difference in a small linkset, I've found that if you've got a large linkset (complex jewellery, for example) it really does make a difference whether you read each prim's' name each time or just run through a list of prims you already know you want to change.

The only thing to watch out for is that you can't detect a name change (as opposed to a link change) by script, so if you rename one of the prims, you need to reset the script.   But that's only normally an issue while you're working on the object.