private void parseLightBlock(SunflowAPI api)
{
p.checkNextToken("{");
p.checkNextToken("type");
if (p.peekNextToken("mesh"))
{
UI.printWarning(UI.Module.API, "Deprecated light type: mesh");
p.checkNextToken("name");
string name = p.getNextToken();
UI.printInfo(UI.Module.API, "Reading light mesh: {0} ...", name);
p.checkNextToken("emit");
api.parameter("radiance", null, parseColor().getRGB());
int samples = numLightSamples;
if (p.peekNextToken("samples"))
samples = p.getNextInt();
else
UI.printWarning(UI.Module.API, "Samples keyword not found - defaulting to {0}", samples);
api.parameter("samples", samples);
int numVertices = p.getNextInt();
int numTriangles = p.getNextInt();
float[] points = new float[3 * numVertices];
int[] triangles = new int[3 * numTriangles];
for (int i = 0; i < numVertices; i++)
{
p.checkNextToken("v");
points[3 * i + 0] = p.getNextFloat();
points[3 * i + 1] = p.getNextFloat();
points[3 * i + 2] = p.getNextFloat();
// ignored
p.getNextFloat();
p.getNextFloat();
p.getNextFloat();
p.getNextFloat();
p.getNextFloat();
}
for (int i = 0; i < numTriangles; i++)
{
p.checkNextToken("t");
triangles[3 * i + 0] = p.getNextInt();
triangles[3 * i + 1] = p.getNextInt();
triangles[3 * i + 2] = p.getNextInt();
}
api.parameter("points", "point", "vertex", points);
api.parameter("triangles", triangles);
api.light(name, "triangle_mesh");
}
else if (p.peekNextToken("point"))
{
UI.printInfo(UI.Module.API, "Reading point light ...");
Color pow;
if (p.peekNextToken("color"))
{
pow = parseColor();
p.checkNextToken("power");
float po = p.getNextFloat();
pow.mul(po);
}
else
{
UI.printWarning(UI.Module.API, "Deprecated color specification - please use color and power instead");
p.checkNextToken("power");
pow = parseColor();
}
p.checkNextToken("p");
api.parameter("center", parsePoint());
api.parameter("power", null , pow.getRGB());
api.light(generateUniqueName("pointlight"), "point");
}
else if (p.peekNextToken("spherical"))
{
UI.printInfo(UI.Module.API, "Reading spherical light ...");
p.checkNextToken("color");
Color pow = parseColor();
p.checkNextToken("radiance");
pow.mul(p.getNextFloat());
api.parameter("radiance", null, pow.getRGB());
p.checkNextToken("center");
api.parameter("center", parsePoint());
p.checkNextToken("radius");
api.parameter("radius", p.getNextFloat());
p.checkNextToken("samples");
api.parameter("samples", p.getNextInt());
api.light (generateUniqueName("spherelight"), "sphere");
}
else if (p.peekNextToken("directional"))
{
UI.printInfo(UI.Module.API, "Reading directional light ...");
p.checkNextToken("source");
Point3 s = parsePoint();
api.parameter("source", s);
p.checkNextToken("target");
Point3 t = parsePoint();
api.parameter("dir", Point3.sub(t, s, new Vector3()));
p.checkNextToken("radius");
api.parameter("radius", p.getNextFloat());
p.checkNextToken("emit");
Color e = parseColor();
if (p.peekNextToken("intensity"))
{
float i = p.getNextFloat();
e.mul(i);
}
else
UI.printWarning(UI.Module.API, "Deprecated color specification - please use emit and intensity instead");
api.parameter("radiance", null, e.getRGB());
api.light(generateUniqueName("dirlight"), "directional");
}
else if (p.peekNextToken("ibl"))
{
UI.printInfo(UI.Module.API, "Reading image based light ...");
p.checkNextToken("image");
api.parameter("texture", p.getNextToken());
p.checkNextToken("center");
api.parameter("center", parseVector());
p.checkNextToken("up");
api.parameter("up", parseVector());
p.checkNextToken("lock");
api.parameter("fixed", p.getNextbool());
int samples = numLightSamples;
if (p.peekNextToken("samples"))
samples = p.getNextInt();
else
UI.printWarning(UI.Module.API, "Samples keyword not found - defaulting to {0}", samples);
api.parameter("samples", samples);
if (p.peekNextToken("lowsamples"))
api.parameter("lowsamples", p.getNextInt());
else
api.parameter("lowsamples", samples);
api.light(generateUniqueName("ibl"), "ibl");
}
else if (p.peekNextToken("meshlight"))
{
p.checkNextToken("name");
string name = p.getNextToken();
UI.printInfo(UI.Module.API, "Reading meshlight: {0} ...", name);
p.checkNextToken("emit");
Color e = parseColor();
if (p.peekNextToken("radiance"))
{
float r = p.getNextFloat();
e.mul(r);
}
else
UI.printWarning(UI.Module.API, "Deprecated color specification - please use emit and radiance instead");
api.parameter("radiance", null, e.getRGB());
int samples = numLightSamples;
if (p.peekNextToken("samples"))
samples = p.getNextInt();
else
UI.printWarning(UI.Module.API, "Samples keyword not found - defaulting to {0}", samples);
api.parameter("samples", samples);
// parse vertices
p.checkNextToken("points");
int np = p.getNextInt();
api.parameter("points", "point", "vertex", parseFloatArray(np * 3));
// parse triangle indices
p.checkNextToken("triangles");
int nt = p.getNextInt();
api.parameter("triangles", parseIntArray(nt * 3));
api.light(name, "triangle_mesh");
}
else if (p.peekNextToken("sunsky"))
{
p.checkNextToken("up");
api.parameter("up", parseVector());
p.checkNextToken("east");
api.parameter("east", parseVector());
p.checkNextToken("sundir");
api.parameter("sundir", parseVector());
p.checkNextToken("turbidity");
api.parameter("turbidity", p.getNextFloat());
if (p.peekNextToken("samples"))
api.parameter("samples", p.getNextInt());
if (p.peekNextToken("ground.extendsky"))
api.parameter("ground.extendsky", p.getNextbool());
else if (p.peekNextToken("ground.color"))
api.parameter("ground.color", null, parseColor().getRGB());
api.light(generateUniqueName("sunsky"), "sunsky");
} else if (p.peekNextToken("cornellbox")) {
UI.printInfo(UI.Module.API, "Reading cornell box ...");
p.checkNextToken("corner0");
api.parameter("corner0", parsePoint());
p.checkNextToken("corner1");
api.parameter("corner1", parsePoint());
p.checkNextToken("left");
api.parameter("leftColor", null, parseColor().getRGB());
p.checkNextToken("right");
api.parameter("rightColor", null, parseColor().getRGB());
p.checkNextToken("top");
api.parameter("topColor", null, parseColor().getRGB());
p.checkNextToken("bottom");
api.parameter("bottomColor", null, parseColor().getRGB());
p.checkNextToken("back");
api.parameter("backColor", null, parseColor().getRGB());
p.checkNextToken("emit");
api.parameter("radiance", null, parseColor().getRGB());
if (p.peekNextToken("samples"))
api.parameter("samples", p.getNextInt());
api.light(generateUniqueName("cornellbox"), "cornell_box"); }
else
UI.printWarning(UI.Module.API, "Unrecognized object type: {0}", p.getNextToken());
p.checkNextToken("}");
}
