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Inicio  Noticias Ver Todas Tutoriales Doom of Lights 1.0
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Tuesday, 02 September 2003 |
Aquí podeis ver un script de Lightwave que crea un array de luces para simular radiosidad y sombras suaves. Pulsar en leer resto del mensaje.
// Doom of Lights 1.0, August 2003
//
// Creates an array of lights to fake radiosity and soft shadows.
// Select a NULL or any object in the middle of your scene, the lights will aim this object.
//
// Felipe Esquivel <
This e-mail address is being protected from spam bots, you need JavaScript enabled to view it
>
//
// TODO: Implement correctly the Hammersley sphere.
// Add a spline color to have a gradient between the zenith and the horizon.
@version 2.1
@warnings
@script generic
curScene;
generic
{
type = 1;
lightCol = <255,255,255>;
shadowTipo = 1;
mapSize = 512;
radius = 6.0;
cache = false;
lightNumber = 60;
totalIntensity = 2;
lightName = "dome";
shadowFuzz = 1.0;
reqbegin("Doom of Lights 1.0");
reqsize(500,218);
c1 = ctlstring("Light Name", lightName);
ctlposition(c1,31,31,177,18);
c2 = ctlinteger("Shadow Map Size", mapSize);
ctlposition(c2,333,117,132,18);
c3 = ctlcheckbox("Cache Shadow Map",cache);
ctlposition(c3,349,93,118,15);
c4 = ctlchoice("Shadow Type",shadowTipo,@"Trace","Map","Off";@);
ctlposition(c4,261,66,206,22);
c5 = ctlchoice("Light Type",type,@"Spot","Distant","Point","Area";@);
ctlposition(c5,229,31,238,23);
c6 = ctlnumber("Shadow Fuzziness",shadowFuzz);
ctlposition(c6,331,148,134,18);
c7 = ctldistance("Dome Radius",radius);
ctlposition(c7,94,59,114,18);
c8 = ctlinteger("Number of Lights",lightNumber);
ctlposition(c8,78,88,130,18);
c9 = ctlpercent("Total Intensity",totalIntensity);
ctlposition(c9,92,117,116,18);
c10 = ctlcolor("Color",lightCol);
ctlposition(c10,51,147,157,18);
c11 = ctltext("","Constructs a dome with lights to fake radiosity Felipe Esquivel <
This e-mail address is being protected from spam bots, you need JavaScript enabled to view it
>");
ctlposition(c11,20,2,450,13);
return if !reqpost();
lightName = getvalue(c1);
type = getvalue(c5);
shadowTipo = getvalue(c4);
shadowSize = getvalue(c2);
cache = getvalue(c3);
shadowFuzz = getvalue(c6);
radius = getvalue(c7);
lightNumber = getvalue(c8);
totalIntensity = getvalue(c9);
lightCol = getvalue(c10);
reqend();
var parNull, parId, i;
var x, y, z;
//AddNull(string(prefix,"_Null"));
curScene = Scene();
(parNull) = curScene.getSelect();
//antes que nada hay que ir al primer frame de la escena
for(i=1; i<=lightNumber; i+= 1)
{
if(type==1){
AddSpotlight(lightName + "_" + i);
// 1=trace, 2=map, -1=off
if(shadowTipo==1)
ShadowType(1);
else if(shadowTipo==2){
ShadowType(2);
ShadowMapSize(mapSize);
ShadowMapFuzziness(shadowFuzz);
if(cache)
CacheShadowMap();
}
else if(shadowTipo==3)
ShadowType(-1);
}
else if(type==2)
AddDistantLight(lightName + "_" + i);
else if(type==3)
AddPointLight(lightName + "_" + i);
else if(type==4)
AddAreaLight(lightName + "_" + i);
else
AddLinearLight(lightName + "_" + i);
parId = parNull.id;
TargetItem(parId);
//ParentItem(parId);
HController(2);
PController(2);
// pone las luces en una esfera al azar sin ningun tipo de distribucion
theta = random(0, 6.2832); // 0 - 360 degrees
eta = random(0, 3.1416); // 0 - 180 degrees
x = radius * sin(theta)* cos(eta);
y = radius * sin(theta)* sin(eta);
z = radius * cos(theta);
if (y < 0)
y = -y; // hacemos media esfera solamente
// distribucion de cilindro al azar
/*
theta = random(0, 3.1416 * 2);
eta = random(0, 3.1416/2);
x = radius * sin(theta);
y = radius * sin(eta);
z = radius * cos(theta);
if (y < 0)
y = -y; // hacemos media esfera solamente
*/
/*
// Hammersley sphere
// for(kk = i; kk; p*=0.5; kk = kk * 2){
t = 0;
p = 0;
for(kk = i; kk != 0; kk = kk * 2){
kk = kk % 2;
if (kk == 1)
t += p;
p *= 0.5;
}
t = 2 * t - 1;
phi = (i + 0.5) / lightNumber;
phirad = phi * 2 * 3.1416;
st = sqrt(1 - t * t);
x = radius * st * cos(phirad);
y = radius * st * sin(phirad);
z = radius * t;
*/
Position(x, y, z);
//LightColor(1, 1, 1);
LightColor(lightCol.r/65025.0, lightCol.g/65025.0, lightCol.b/255.0);
LightIntensity(totalIntensity/lightNumber);
}
}
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