I found this on Linda Kellie Building Supply Sim. I makes a particle word banner so you only need 2 Prims!:
////////////////////////////////////////////////////////////////////
//
// AbcText
// by Ange Capalini
// Originally Written 10/31/2011
// code released to the public domain
//
////////////////////////////////////////////////////////////////////
//==================================================================
// INSTRUCTIONS
//==================================================================
//
// - set Max Particles to 4096
// - create white cube "board" <15.500, 0.010, 0.800>
// - create red cube "cursor" <0.050, 0.010, 0.030> & drop AbcText
// - link cursor (child) to board (root)
// - send message <= 25 char. to chanel 20
// - that's all folk's
//
/////////////////////////////////////////////////////////////////////
//===========================================
// CONSTANTS
//===========================================
float Size_Point = 0.1; //pixel size
string Txt_Point = ""; //pixel texture
vector Color_Point = < 0., 0., 1. >; //pixel color
vector Size_Affich = <15.5, .01, .8>; //display size
//===========================================
// GLOBALS VARIABLES
//===========================================
list Alphabet = [ " ",
"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z",
"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m",
"n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z",
"0", "1", "2", "3", "4", "5", "6", "7", "8", "9",
":", "'", ",", "!", "?", "#", ".", "/", "-", "é", "è", "à" ];
//char matrix 6 x 5 points
list Matrices = [ " ",
"011001001010010111101001000000", //A
"111001001011100100101110000000",
"011001000010000100000110000000",
"111001001010010100101110000000",
"111001000011100100001110000000",
"111001000011100100001000000000",
"011101000010110100100111000000",
"100101001011110100101001000000",
"111000100001000010001110000000",
"001100001000010100100110000000",
"100101010011000101001001000000",
"100001000010000100001110000000",
"100011101110101100011000100000",
"100101101010110100101001000000",
"011001001010010100100110000000",
"111001001010010111001000000000",
"011001001010010100100110000010",
"111001001010010111001001000000",
"011101000001100000101110000000",
"111000100001000010000100000000",
"100101001010010100100110000000",
"100101001010100101000100000000",
"100011010110101101010101000000",
"100101001001100100101001000000",
"100101001001110000100110000000",
"111100001001100100001111000000", //Z
"000000110010010100100111000000", //a
"100001110010010100101110000000",
"000000110010000100000110000000",
"000100111010010100100111000000",
"000000111010010101000111000000",
"011001000011000100001000000000",
"011001001010010011100001001100",
"100001110010010100101001000000",
"100000000010000100001000000000",
"001000000000100001000010011000",
"100001001010100110101001000000",
"100001000010000100001000000000",
"000001101010101101011010100000",
"000001110010010100101001000000",
"000000110010010100100110000000",
"111001001010010111001000010000",
"011101001010010011100001000010",
"000001010011000100001000000000",
"000000111011000001101110000000",
"010001110001000010000100000000",
"000001001010010100100111000000",
"000001001010010100100110000000",
"000001010110101101010101000000",
"000001001001100011001001000000",
"100101001010010011100001001100",
"000001111000100010001111000000", //z
"011001001010010100100110000000", //0
"011000010000100001000010000000",
"111000001001100100001111000000",
"111000001001100000101110000000",
"001000110010100111100010000000",
"111101000011100000101110000000",
"011001000011100100100110000000",
"111100001000100010000100000000",
"011001001001100100100110000000",
"011001001001110000100110000000", //9
"000000000000100000000010000000", //:
"000100010000000000000000000000",
"000000000000000000100010000000",
"001000010000100000000010000000",
"001000101000010001000000000100",
"010101111101010111110101000000",
"000000000000000000000010000000",
"000010001000100010001000000000",
"000000000001110000000000000000",
"000100110010010101000111000000",
"010000111010010101000111000000",
"010000110010010100100111000000" //à
];
list Particle_Parameters=[];
vector Origine;
string Texte;
integer id_Phrase;
integer len_Phrase;
integer id_Lettre;
string Lettre;
string matrice_Lettre;
vector point_zero;
integer x;
integer z;
//===========================================
// SET PARTICLES
//===========================================
init_particles(){
Particle_Parameters = [
PSYS_SRC_TEXTURE, Txt_Point,
PSYS_PART_START_SCALE, < Size_Point, Size_Point, FALSE >,
PSYS_PART_END_SCALE, < Size_Point, Size_Point, FALSE >,
PSYS_PART_START_COLOR, Color_Point,
PSYS_PART_END_COLOR, Color_Point,
PSYS_SRC_BURST_PART_COUNT, (integer)1,
PSYS_SRC_BURST_RATE, (float) 0.0,
PSYS_PART_MAX_AGE, (float) 30.0,
PSYS_SRC_PATTERN, (integer) 1,
PSYS_PART_FLAGS,
PSYS_PART_EMISSIVE_MASK
];
}
//===========================================
// SET DISPLAY
//===========================================
affichage (string phrase) {
integer len_Phrase = llStringLength(phrase)-1;
for(id_Phrase = 0; id_Phrase <= len_Phrase;++id_Phrase){
Lettre = llGetSubString(phrase, id_Phrase, id_Phrase);
id_Lettre = llListFindList(Alphabet, [Lettre]);
matrice_Lettre = llList2String(Matrices, id_Lettre);
z=0;
do{
x=0;
do{
if( (integer)llGetSubString(matrice_Lettre, x + 5*z, x + 5*z) ) {
llSetLinkPrimitiveParamsFast(LINK_THIS, [PRIM_POSITION, point_zero + < x*Size_Point, 0.0, -z*Size_Point > ]);
llParticleSystem( Particle_Parameters );
llSleep(0.12);
llParticleSystem( [] );
}
} while( ++x <= 4);
} while( ++z <= 5);
point_zero += < 6. * Size_Point, 0.0, 0.0 >; //locate next char
}
}
/////////////////////////////////////
/////////////////////////////////////
/////////////////////////////////////
/////////////////////////////////////
default {
state_entry() {
llListen(20, "", llGetOwner(), "");
init_particles();
Origine = < (-0.48 * Size_Affich.x) , (-1.25 * Size_Point) , (0.3 * Size_Affich.z) >; //raz cursor
}
listen( integer channel, string name, key id, string msg ) {
Texte = msg;
point_zero = Origine; //raz cursor
llSetTimerEvent(30.);
affichage(Texte);
}
timer(){
point_zero = Origine; //raz cursor
affichage(Texte);
}
on_rez(integer param) {llResetScript();}
changed(integer mask) {if(mask & CHANGED_OWNER) {llResetScript();}}
}