set 3 sides but not 4th?

I have a hollowed box with .250 cut, one side off for a wrap around window.
I wish to change the 3 outsides=1,2,3 but not the inside=4.

I could do allsides and change #4 back but won't know what back was.

snippet/

}
        else if (message=="Int-Curtains") {
              llSetTexture("471fba27-0388-2f51-90c5-797ab9c9d112",4);
              llSetAlpha(1.0,4);
              llSetColor(<1,1,1>,4);
              llScaleTexture(1.0,1.0,4);
}
           else if (message=="Ext-Shutters") {
              llSetTexture("0f8dec66-734f-377c-5815-ec36bae3b2d9",(1,2,3));//doing this wont work
              llSetAlpha(1.0,1);
              llSetColor(<1,1,1>,3);
              llScaleTexture(1.0,20.0,3);              
}
        else if (message=="Ext-Windows") {
              llSetTexture("d5b71125-77cf-5aab-b47d-d0405bc25b5a",1,2,3);//doing this wont work
              llSetAlpha(1.0,3);
              llSetColor(<1,1,1>,3);
              llScaleTexture(1.0,1.0,3);
}

I tried bracketing various ways and can't find an example although I've seen the example in llSetPrimativeParams but can you show me the simple answer please.

The llSetTexture side parameter is a number so will only do ALL_SIDES or one specific side at a time, so either make 3 calls (but remember the 0.2 sec penalty per call) or use llSetPrimitiveParams

There is no back, you would need to specify the old texture.

I've not tried this but I think what you would need is something like

 
else if (message=="Int-Curtains") 
{ 
  //llSetTexture("471fba27-0388-2f51-90c5-797ab9c9d112",4); 
  //llSetAlpha(1.0,4); 
  //llSetColor(<1,1,1>,4); 
  //llScaleTexture(1.0,1.0,4); 
  
    llSetPrimitiveParams([  PRIM_TEXTURE, 4, "471fba27-0388-2f51-90c5-797ab9c9d112", <1.0, 1.0, 1.0>, <0.0, 0.0, 0.0>, 0.0,
                            PRIM_COLOR, 4, <1,1,1>, 0.4]);
} 
else if (message=="Ext-Shutters") 
{ 
    //llSetTexture("0f8dec66-734f-377c-5815-ec36bae3b2d9",(1,2,3));//doing this wont work 
    //llSetAlpha(1.0,1); 
    //llSetColor(<1,1,1>,3); 
    //llScaleTexture(1.0,20.0,3);               
    llSetPrimitiveParams([  PRIM_TEXTURE, 1, "471fba27-0388-2f51-90c5-797ab9c9d112", <1.0, 1.0, 1.0>, <0.0, 0.0, 0.0>, 1.0,
                            PRIM_TEXTURE, 2, "471fba27-0388-2f51-90c5-797ab9c9d112", <1.0, 1.0, 1.0>, <0.0, 0.0, 0.0>, 0.0,
                            PRIM_TEXTURE, 3, "471fba27-0388-2f51-90c5-797ab9c9d112", <1.0,20.0, 1.0>, <0.0, 0.0, 0.0>, 0.0,
                            PRIM_COLOR, 3, <1,1,1>, 0.0]);
} 
else if (message=="Ext-Windows") 
{ 
    //llSetTexture("d5b71125-77cf-5aab-b47d-d0405bc25b5a",1,2,3);//doing this wont work 
    //llSetAlpha(1.0,3); 
    //llSetColor(<1,1,1>,3); 
    //llScaleTexture(1.0,1.0,3); 
    llSetPrimitiveParams([  PRIM_TEXTURE, 1, "d5b71125-77cf-5aab-b47d-d0405bc25b5a", <1.0, 1.0, 1.0>, <0.0, 0.0, 0.0>, 1.0,
                            PRIM_TEXTURE, 2, "d5b71125-77cf-5aab-b47d-d0405bc25b5a", <1.0, 1.0, 1.0>, <0.0, 0.0, 0.0>, 0.0,
                            PRIM_TEXTURE, 3, "d5b71125-77cf-5aab-b47d-d0405bc25b5a", <1.0,10.0, 1.0>, <0.0, 0.0, 0.0>, 0.0,
							PRIM_COLOR, 3, <1,1,1>, 1.0]);
} 
   

No wonder I couldn't get it to work. I assumed as much.
I think I am getting a handle on scripting now but there is a long way and a lot of time ahead one, function at a time. I have to learn because
Building and textures sure look pretty but scripting gets stuff done.
After all...scripters rule.

If the prim is modifyable you can do llGetTexture() to get the old texture to change the 4th side back to in 2 function calls/llSetPrimitiveParameter's instead of 3

OK, this has got me now.
I inserted a sample of the above code and the texture is rotated 57.30 degrees. I blank and zero all settings and it sets textures ok but rotated again. I cannot work this out.
edit: i got it. The 1.0 at the end should be 0.0

default
{
    state_entry()
    {
        llSay(0, "Hello, Avatar!");
    }

    touch_start(integer total_number)
    {
         llSetPrimitiveParams([  PRIM_TEXTURE, ALL_SIDES, "0f8dec66-734f-377c-5815-ec36bae3b2d9", <1.0, 1.0, 1.0>, <0.0, 0.0, 0.0>, 1.0]);
   
    }
}

Please could you fill me in?

Thaks Dragon, I don't know how to pass the Get calls on yet so i'm making a spa/pool with all the bells as a project to get all this stuff together. I'm still trying to work out how to make the water appear to rise slowly from the bottom of the pool to fill let alone the switches to do it.

It's my understanding that this would require full perms, not just mod. This has to be true for the next owner, if this is to be a commercial product, so in that case I doubt full permissions will be given, resulting in an object that works only for the creator. I think it would work best with the llSetPrimitiveParams setting only the desired faces, done in a list it's done all at once, with only one 0.2 second penalty.

sorry my fault, The parameters with PRIM_TEXTURE are
integer face, string name, vector repeats, vector offsets, float rotation
I got confused and thought the last parameter with alpha rather than rotation.
Your getting 1.0 Radians worth of rotation (approx 57.3 degrees)