public InstantGI(Options options)
{
numPhotons = options.getInt("gi.igi.samples", 64);
numSets = options.getInt("gi.igi.sets", 1);
c = options.getFloat("gi.igi.c", 0.00003f);
numBias = options.getInt("gi.igi.bias_samples", 0);
virtualLights = null;
}
public FakeGIEngine(Options options)
{
up = options.getVector("gi.fake.up", new Vector3(0, 1, 0)).normalize();
sky = options.getColor("gi.fake.sky", Color.WHITE).copy();
ground = options.getColor("gi.fake.ground", Color.BLACK).copy();
sky.mul((float)Math.PI);
ground.mul((float)Math.PI);
}
public AmbientOcclusionGIEngine(Options options)
{
bright = options.getColor("gi.ambocc.bright", Color.WHITE);
dark = options.getColor("gi.ambocc.dark", Color.BLACK);
samples = options.getInt("gi.ambocc.samples", 32);
maxDist = options.getFloat("gi.ambocc.maxdist", 0);
maxDist = (maxDist <= 0) ? float.PositiveInfinity : maxDist;
}
public bool init(Options options, Scene scene)
{
bright = options.getColor("gi.ambocc.bright", Color.WHITE);
dark = options.getColor("gi.ambocc.dark", Color.BLACK);
samples = options.getInt("gi.ambocc.samples", 32);
maxDist = options.getFloat("gi.ambocc.maxdist", 0);
maxDist = (maxDist <= 0) ? float.PositiveInfinity : maxDist;
return true;
}
public bool init(Options options, Scene scene)
{
up = options.getVector("gi.fake.up", new Vector3(0, 1, 0)).normalize();
sky = options.getColor("gi.fake.sky", Color.WHITE).copy();
ground = options.getColor("gi.fake.ground", Color.BLACK).copy();
sky.mul((float) Math.PI);
ground.mul((float) Math.PI);
return true;
}
public CausticPhotonMap(Options options)
{
_numEmit = options.getInt("caustics.emit", 10000);
gatherNum = options.getInt("caustics.gather", 50);
gatherRadius = options.getFloat("caustics.radius", 0.5f);
filterValue = options.getFloat("caustics.filter", 1.1f);
bounds = new BoundingBox();
maxPower = 0;
maxRadius = 0;
}
public bool prepare(Options options, Scene scene, int w, int h)
{
this.scene = scene;
imageWidth = w;
imageHeight = h;
numBucketsX = ((uint)imageWidth + 31) >> 5;//>>>
numBucketsY = ((uint)imageHeight + 31) >> 5;//>>>
numBuckets = numBucketsX * numBucketsY;
return true;
}
public bool build(Options options)
{
// read options
maxDiffuseDepth = options.getInt("depths.diffuse", maxDiffuseDepth);
maxReflectionDepth = options.getInt("depths.reflection", maxReflectionDepth);
maxRefractionDepth = options.getInt("depths.refraction", maxRefractionDepth);
string giEngineType = options.getstring("gi.engine", null);
giEngine = PluginRegistry.giEnginePlugins.createObject(giEngineType);
string caustics = options.getstring("caustics", null);
causticPhotonMap = PluginRegistry.causticPhotonMapPlugins.createObject(caustics);
// validate options
maxDiffuseDepth = Math.Max(0, maxDiffuseDepth);
maxReflectionDepth = Math.Max(0, maxReflectionDepth);
maxRefractionDepth = Math.Max(0, maxRefractionDepth);
SunflowSharp.Systems.Timer t = new SunflowSharp.Systems.Timer();
t.start();
// count total number of light samples
int numLightSamples = 0;
for (int i = 0; i < lights.Length; i++)
numLightSamples += lights[i].getNumSamples();
// initialize gi engine
if (giEngine != null)
{
if (!giEngine.init(options, scene))
return false;
}
if (!calculatePhotons(causticPhotonMap, "caustic", 0, options))
return false;
t.end();
UI.printInfo(UI.Module.LIGHT, "Light Server stats:");
UI.printInfo(UI.Module.LIGHT, " * Light sources found: {0}", lights.Length);
UI.printInfo(UI.Module.LIGHT, " * Light samples: {0}", numLightSamples);
UI.printInfo(UI.Module.LIGHT, " * Max raytrace depth:");
UI.printInfo(UI.Module.LIGHT, " - Diffuse {0}", maxDiffuseDepth);
UI.printInfo(UI.Module.LIGHT, " - Reflection {0}", maxReflectionDepth);
UI.printInfo(UI.Module.LIGHT, " - Refraction {0}", maxRefractionDepth);
UI.printInfo(UI.Module.LIGHT, " * GI engine {0}", giEngineType == null ? "none" : giEngineType);
UI.printInfo(UI.Module.LIGHT, " * Caustics: {0}", caustics == null ? "none" : caustics);
UI.printInfo(UI.Module.LIGHT, " * Shader override: {0}", shaderOverride);
UI.printInfo(UI.Module.LIGHT, " * Photon override: {0}", shaderOverridePhotons);
UI.printInfo(UI.Module.LIGHT, " * Build time: {0}", t.ToString());
return true;
}
public static GIEngine create(Options options)
{
string type = options.getstring("gi.engine", null);
if (type == null || type == "null" || type == "none")
return null;
else if (type == "ambocc")
return new AmbientOcclusionGIEngine(options);
else if (type == "fake")
return new FakeGIEngine(options);
else if (type == "igi")
return new InstantGI(options);
else if (type == "irr-cache")
return new IrradianceCacheGIEngine(options);
else if (type == "path")
return new PathTracingGIEngine(options);
else
{
UI.printWarning(UI.Module.LIGHT, "Unrecognized GI engine type \"{0}\" - ignoring", type);
return null;
}
}
public IrradianceCacheGIEngine(Options options)
{
samples = options.getInt("gi.irr-cache.samples", 256);
tolerance = options.getFloat("gi.irr-cache.tolerance", 0.05f);
invTolerance = 1.0f / tolerance;
minSpacing = options.getFloat("gi.irr-cache.min_spacing", 0.05f);
maxSpacing = options.getFloat("gi.irr-cache.max_spacing", 5.00f);
root = null;
//rwl = new ReentrantReadWriteLock();
globalPhotonMap = null;
string gmap = options.getstring("gi.irr-cache.gmap", null);
if (gmap == null || gmap == "none")
return;
int numEmit = options.getInt("gi.irr-cache.gmap.emit", 100000);
int gather = options.getInt("gi.irr-cache.gmap.gather", 50);
float radius = options.getFloat("gi.irr-cache.gmap.radius", 0.5f);
if (gmap == "kd")
globalPhotonMap = new GlobalPhotonMap(numEmit, gather, radius);
else if (gmap == "grid")
globalPhotonMap = new GridPhotonMap(numEmit, gather, radius);
else
UI.printWarning(UI.Module.LIGHT, "Unrecognized global photon map type \"%s\" - ignoring", gmap);
}
public bool calculatePhotons(PhotonStore map, string type, int seed, Options options)
{
if (map == null)
return true;
if (lights.Length == 0)
{
UI.printError(UI.Module.LIGHT, "Unable to trace {0} photons, no lights in scene", type);
return false;
}
float[] histogram = new float[lights.Length];
histogram[0] = lights[0].getPower();
for (int i = 1; i < lights.Length; i++)
histogram[i] = histogram[i - 1] + lights[i].getPower();
UI.printInfo(UI.Module.LIGHT, "Tracing {0} photons ...", type);
map.prepare(options, scene.getBounds());
int numEmittedPhotons = map.numEmit();
if (numEmittedPhotons <= 0 || histogram[histogram.Length - 1] <= 0)
{
UI.printError(UI.Module.LIGHT, "Photon mapping enabled, but no {0} photons to emit", type);
return false;
}
UI.taskStart("Tracing " + type + " photons", 0, numEmittedPhotons);
Thread[] photonThreads = new Thread[scene.getThreads()];
float scale = 1.0f / numEmittedPhotons;
int delta = numEmittedPhotons / photonThreads.Length;
photonCounter = 0;
SunflowSharp.Systems.Timer photonTimer = new SunflowSharp.Systems.Timer();
photonTimer.start();
for (int i = 0; i < photonThreads.Length; i++)
{
int threadID = i;
int start = threadID * delta;
int end = (threadID == (photonThreads.Length - 1)) ? numEmittedPhotons : (threadID + 1) * delta;
photonThreads[i] = new Thread(new ThreadStart(new CalculatePhotons(start, end, this, seed, histogram, scale, map, lockObj).Run));
photonThreads[i].Priority = scene.getThreadPriority();
photonThreads[i].Start();
}
for (int i = 0; i < photonThreads.Length; i++)
{
try
{
photonThreads[i].Join();
}
catch (Exception e)
{
UI.printError(UI.Module.LIGHT, "Photon thread {0} of {1} was interrupted", i + 1, photonThreads.Length);
return false;
}
}
if (UI.taskCanceled())
{
UI.taskStop(); // shut down task cleanly
return false;
}
photonTimer.end();
UI.taskStop();
UI.printInfo(UI.Module.LIGHT, "Tracing time for {0} photons: {1}", type, photonTimer.ToString());
map.init();
return true;
}
public void prepare(Options options, BoundingBox sceneBounds)
{
}
public PathTracingGIEngine(Options options)
{
samples = options.getInt("gi.path.samples", 16);
}
public bool build(Options options)
{
// read options
maxDiffuseDepth = options.getInt("depths.diffuse", maxDiffuseDepth);
maxReflectionDepth = options.getInt("depths.reflection", maxReflectionDepth);
maxRefractionDepth = options.getInt("depths.refraction", maxRefractionDepth);
giEngine = GIEngineFactory.create(options);
string caustics = options.getstring("caustics", null);
if (caustics == null || caustics == "none")
causticPhotonMap = null;
else if (caustics != null && caustics == "kd")
causticPhotonMap = new CausticPhotonMap(options);
else
{
UI.printWarning(UI.Module.LIGHT, "Unrecognized caustics photon map engine \"{0}\" - ignoring", caustics);
causticPhotonMap = null;
}
// validate options
maxDiffuseDepth = Math.Max(0, maxDiffuseDepth);
maxReflectionDepth = Math.Max(0, maxReflectionDepth);
maxRefractionDepth = Math.Max(0, maxRefractionDepth);
SunflowSharp.Systems.Timer t = new SunflowSharp.Systems.Timer();
t.start();
// count total number of light samples
int numLightSamples = 0;
for (int i = 0; i < lights.Length; i++)
numLightSamples += lights[i].getNumSamples();
// initialize gi engine
if (giEngine != null)
{
if (!giEngine.init(scene))
return false;
}
if (!calculatePhotons(causticPhotonMap, "caustic", 0))
return false;
t.end();
cacheLookups = 0;
cacheHits = 0;
cacheEmptyEntryMisses = 0;
cacheWrongEntryMisses = 0;
cacheEntryAdditions = 0;
if (_shadingCache != null)
{
// clear shading cache
for (int i = 0; i < _shadingCache.Length; i++)
_shadingCache[i] = null;
}
UI.printInfo(UI.Module.LIGHT, "Light Server stats:");
UI.printInfo(UI.Module.LIGHT, " * Light sources found: {0}", lights.Length);
UI.printInfo(UI.Module.LIGHT, " * Light samples: {0}", numLightSamples);
UI.printInfo(UI.Module.LIGHT, " * Max raytrace depth:");
UI.printInfo(UI.Module.LIGHT, " - Diffuse {0}", maxDiffuseDepth);
UI.printInfo(UI.Module.LIGHT, " - Reflection {0}", maxReflectionDepth);
UI.printInfo(UI.Module.LIGHT, " - Refraction {0}", maxRefractionDepth);
UI.printInfo(UI.Module.LIGHT, " * GI engine {0}", options.getstring("gi.engine", "none"));
UI.printInfo(UI.Module.LIGHT, " * Caustics: {0}", caustics == null ? "none" : caustics);
UI.printInfo(UI.Module.LIGHT, " * Shader override: {0}", shaderOverride);
UI.printInfo(UI.Module.LIGHT, " * Photon override: {0}", shaderOverridePhotons);
UI.printInfo(UI.Module.LIGHT, " * Shading cache: {0}", _shadingCache == null ? "off" : "on");
UI.printInfo(UI.Module.LIGHT, " * Build time: {0}", t.ToString());
return true;
}
public void put(string name, Options options)
{
renderObjects[name] = new RenderObjectHandle(options);
}
public RenderObjectHandle(Options options)
{
obj = options;
type = RenderObjectType.OPTIONS;
}
public void prepare(Options options, BoundingBox sceneBounds)
{
// get settings
_numEmit = options.getInt("gi.irr-cache.gmap.emit", 100000);
numGather = options.getInt("gi.irr-cache.gmap.gather", 50);
gatherRadius = options.getFloat("gi.irr-cache.gmap.radius", 0.5f);
// init
bounds = new BoundingBox(sceneBounds);
bounds.enlargeUlps();
Vector3 w = bounds.getExtents();
nx = (int)Math.Max(((w.x / gatherRadius) + 0.5f), 1);
ny = (int)Math.Max(((w.y / gatherRadius) + 0.5f), 1);
nz = (int)Math.Max(((w.z / gatherRadius) + 0.5f), 1);
int numCells = nx * ny * nz;
UI.printInfo(UI.Module.LIGHT, "Initializing grid photon map:");
UI.printInfo(UI.Module.LIGHT, " * Resolution: {0}x{1}x{2}", nx, ny, nz);
UI.printInfo(UI.Module.LIGHT, " * Total cells: {0}", numCells);
for (hashPrime = 0; hashPrime < PRIMES.Length; hashPrime++)
if (PRIMES[hashPrime] > (numCells / 5))
break;
cellHash = new PhotonGroup[PRIMES[hashPrime]];
UI.printInfo(UI.Module.LIGHT, " * Initial hash size: {0}", cellHash.Length);
}
/**
* Render the scene using the specified options, image sampler and display.
*
* @param options rendering options object
* @param sampler image sampler
* @param display display to send the image to, a default display will
* be created if <code>null</code>
*/
public void render(Options options, ImageSampler sampler, IDisplay display)
{
if (display == null)
display = null;// new FrameDisplay();
if (bakingInstance != null)
{
UI.printDetailed(UI.Module.SCENE, "Creating primitives for lightmapping ...");
bakingPrimitives = bakingInstance.getBakingPrimitives();
if (bakingPrimitives == null)
{
UI.printError(UI.Module.SCENE, "Lightmap baking is not supported for the given instance.");
return;
}
int n = bakingPrimitives.getNumPrimitives();
UI.printInfo(UI.Module.SCENE, "Building acceleration structure for lightmapping ({0} num primitives) ...", n);
bakingAccel = AccelerationStructureFactory.create("auto", n, true);
bakingAccel.build(bakingPrimitives);
}
else
{
bakingPrimitives = null;
bakingAccel = null;
}
bakingViewDependent = options.getbool("baking.viewdep", bakingViewDependent);
if ((bakingInstance != null && bakingViewDependent && camera == null) || (bakingInstance == null && camera == null))
{
UI.printError(UI.Module.SCENE, "No camera found");
return;
}
// read from options
threads = options.getInt("threads", 0);
lowPriority = options.getbool("threads.lowPriority", true);
imageWidth = options.getInt("resolutionX", 640);
imageHeight = options.getInt("resolutionY", 480);
// limit resolution to 16k
imageWidth = MathUtils.clamp(imageWidth, 1, 1 << 14);
imageHeight = MathUtils.clamp(imageHeight, 1, 1 << 14);
// get acceleration structure info
// count scene primitives
long numPrimitives = 0;
for (int i = 0; i < instanceList.getNumPrimitives(); i++)
numPrimitives += instanceList.getNumPrimitives(i);
UI.printInfo(UI.Module.SCENE, "Scene stats:");
UI.printInfo(UI.Module.SCENE, " * Infinite instances: {0}", infiniteInstanceList.getNumPrimitives());
UI.printInfo(UI.Module.SCENE, " * Instances: {0}", instanceList.getNumPrimitives());
UI.printInfo(UI.Module.SCENE, " * Primitives: {0}", numPrimitives);
string accelName = options.getstring("accel", null);
if (accelName != null)
{
rebuildAccel = rebuildAccel || acceltype != accelName;
acceltype = accelName;
}
UI.printInfo(UI.Module.SCENE, " * Instance accel: {0}", acceltype);
if (rebuildAccel)
{
intAccel = AccelerationStructureFactory.create(acceltype, instanceList.getNumPrimitives(), false);
intAccel.build(instanceList);
rebuildAccel = false;
}
UI.printInfo(UI.Module.SCENE, " * Scene bounds: {0}", getBounds());
UI.printInfo(UI.Module.SCENE, " * Scene center: {0}", getBounds().getCenter());
UI.printInfo(UI.Module.SCENE, " * Scene diameter: {0}", getBounds().getExtents().Length());
UI.printInfo(UI.Module.SCENE, " * Lightmap bake: {0}", bakingInstance != null ? (bakingViewDependent ? "view" : "ortho") : "off");
if (sampler == null)
return;
if (!lightServer.build(options))
return;
// render
UI.printInfo(UI.Module.SCENE, "Rendering ...");
sampler.prepare(options, this, imageWidth, imageHeight);
sampler.render(display);
lightServer.showStats();
// discard baking tesselation/accel structure
bakingPrimitives = null;
bakingAccel = null;
UI.printInfo(UI.Module.SCENE, "Done.");
}
public bool prepare(Options options, Scene scene, int w, int h)
{
this.scene = scene;
imageWidth = w;
imageHeight = h;
// fetch options
bucketSize = options.getInt("bucket.size", bucketSize);
bucketOrderName = options.getstring("bucket.order", bucketOrderName);
minAADepth = options.getInt("aa.min", minAADepth);
maxAADepth = options.getInt("aa.max", maxAADepth);
superSampling = options.getInt("aa.samples", superSampling);
displayAA = options.getbool("aa.display", displayAA);
jitter = options.getbool("aa.jitter", jitter);
contrastThreshold = options.getFloat("aa.contrast", contrastThreshold);
// limit bucket size and compute number of buckets in each direction
bucketSize = MathUtils.clamp(bucketSize, 16, 512);
int numBucketsX = (imageWidth + bucketSize - 1) / bucketSize;
int numBucketsY = (imageHeight + bucketSize - 1) / bucketSize;
bucketOrder = BucketOrderFactory.create(bucketOrderName);
bucketCoords = bucketOrder.getBucketSequence(numBucketsX, numBucketsY);
// validate AA options
minAADepth = MathUtils.clamp(minAADepth, -4, 5);
maxAADepth = MathUtils.clamp(maxAADepth, minAADepth, 5);
superSampling = MathUtils.clamp(superSampling, 1, 256);
invSuperSampling = 1.0 / superSampling;
// compute AA stepping sizes
subPixelSize = (maxAADepth > 0) ? (1 << maxAADepth) : 1;
minStepSize = maxAADepth >= 0 ? 1 : 1 << (-maxAADepth);
if (minAADepth == maxAADepth)
maxStepSize = minStepSize;
else
maxStepSize = minAADepth > 0 ? 1 << minAADepth : subPixelSize << (-minAADepth);
useJitter = jitter && maxAADepth > 0;
// compute anti-aliasing contrast thresholds
contrastThreshold = MathUtils.clamp(contrastThreshold, 0, 1);
thresh = contrastThreshold * (float)Math.Pow(2.0f, minAADepth);
// read filter settings from scene
filterName = options.getstring("filter", filterName);
filter = PluginRegistry.filterPlugins.createObject(filterName);
// adjust filter
if (filter == null)
{
UI.printWarning(UI.Module.BCKT, "Unrecognized filter type: \"{0}\" - defaulting to box", filterName);
filter = new BoxFilter();
filterName = "box";
}
fhs = filter.getSize() * 0.5f;
fs = (int)Math.Ceiling(subPixelSize * (fhs - 0.5f));
// prepare QMC sampling
sigmaOrder = Math.Min(QMC.MAX_SIGMA_ORDER, Math.Max(0, maxAADepth) + 13); // FIXME: how big should the table be?
sigmaLength = 1 << sigmaOrder;
UI.printInfo(UI.Module.BCKT, "Bucket renderer settings:");
UI.printInfo(UI.Module.BCKT, " * Resolution: {0}x{1}", imageWidth, imageHeight);
UI.printInfo(UI.Module.BCKT, " * Bucket size: {0}", bucketSize);
UI.printInfo(UI.Module.BCKT, " * Number of buckets: {0}x{1}", numBucketsX, numBucketsY);
if (minAADepth != maxAADepth)
UI.printInfo(UI.Module.BCKT, " * Anti-aliasing: {0} -> {1} (adaptive)", aaDepthTostring(minAADepth), aaDepthTostring(maxAADepth));
else
UI.printInfo(UI.Module.BCKT, " * Anti-aliasing: {0} (fixed)", aaDepthTostring(minAADepth));
UI.printInfo(UI.Module.BCKT, " * Rays per sample: {0}", superSampling);
UI.printInfo(UI.Module.BCKT, " * Subpixel jitter: {0}", useJitter ? "on" : (jitter ? "auto-off" : "off"));
UI.printInfo(UI.Module.BCKT, " * Contrast threshold: {0}", contrastThreshold);
UI.printInfo(UI.Module.BCKT, " * Filter type: {0}", filterName);
UI.printInfo(UI.Module.BCKT, " * Filter size: {0} pixels", filter.getSize());
return true;
}
public void prepare(Options options, BoundingBox sceneBounds)
{
// get settings
_numEmit = options.getInt("gi.irr-cache.gmap.emit", 100000);
numGather = options.getInt("gi.irr-cache.gmap.gather", 50);
gatherRadius = options.getFloat("gi.irr-cache.gmap.radius", 0.5f);
// init
photonList = new List<Photon>();
photonList.Add(null);
photons = null;
storedPhotons = halfStoredPhotons = 0;
}
/**
* Render using the specified options and the specified display. If the
* specified options do not exist - defaults will be used.
*
* @param optionsName name of the {@link RenderObject} which contains the
* options
* @param display display object
*/
public void render(string optionsName, IDisplay display)
{
if (string.IsNullOrEmpty(optionsName))
optionsName = "::options";
renderObjects.updateScene(scene);
Options opt = lookupOptions(optionsName);
if (opt == null)
opt = new Options();
scene.setCamera(lookupCamera(opt.getstring("camera", null)));
// shader override
String shaderOverrideName = opt.getstring("override.shader", "none");
bool overridePhotons = opt.getbool("override.photons", false);
if (shaderOverrideName.Equals("none"))
scene.setShaderOverride(null, false);
else {
IShader shader = lookupShader(shaderOverrideName);
if (shader == null)
UI.printWarning(UI.Module.API, "Unable to find shader \"{0}\" for override, disabling", shaderOverrideName);
scene.setShaderOverride(shader, overridePhotons);
}
// baking
string bakingInstanceName = opt.getstring("baking.instance", null);
if (bakingInstanceName != null)
{
Instance bakingInstance = lookupInstance(bakingInstanceName);
if (bakingInstance == null)
{
UI.printError(UI.Module.API, "Unable to bake instance \"{0}\" - not found", bakingInstanceName);
return;
}
scene.setBakingInstance(bakingInstance);
}
else
scene.setBakingInstance(null);
ImageSampler sampler = PluginRegistry.imageSamplerPlugins.createObject(opt.getstring("sampler", "bucket"));
scene.render(opt, sampler, display);
}
public void prepare(Options options, BoundingBox sceneBounds)
{
// get options
_numEmit = options.getInt("caustics.emit", 10000);
gatherNum = options.getInt("caustics.gather", 50);
gatherRadius = options.getFloat("caustics.radius", 0.5f);
filterValue = options.getFloat("caustics.filter", 1.1f);
bounds = new BoundingBox();
// init
maxPower = 0;
maxRadius = 0;
photonList = new List<Photon>();
photonList.Add(null);
photons = null;
storedPhotons = halfStoredPhotons = 0;
}
public bool init(Options options, Scene scene)
{
numPhotons = options.getInt("gi.igi.samples", 64);
numSets = options.getInt("gi.igi.sets", 1);
c = options.getFloat("gi.igi.c", 0.00003f);
numBias = options.getInt("gi.igi.bias_samples", 0);
virtualLights = null;
if (numSets < 1)
numSets = 1;
UI.printInfo(UI.Module.LIGHT, "Instant Global Illumination settings:");
UI.printInfo(UI.Module.LIGHT, " * Samples: {0}", numPhotons);
UI.printInfo(UI.Module.LIGHT, " * Sets: {0}", numSets);
UI.printInfo(UI.Module.LIGHT, " * Bias bound: {0}", c);
UI.printInfo(UI.Module.LIGHT, " * Bias rays: {0}", numBias);
virtualLights = new PointLight[numSets][];
if (numPhotons > 0)
{
for (int i = 0, seed = 0; i < virtualLights.Length; i++, seed += numPhotons)
{
PointLightStore map = new PointLightStore(this);
if (!scene.calculatePhotons(map, "virtual", seed, options))
return false;
virtualLights[i] = map.virtualLights.ToArray();
UI.printInfo(UI.Module.LIGHT, "Stored {0} virtual point lights for set {0} of {0}", virtualLights[i].Length, i + 1, numSets);
}
}
else
{
// create an empty array
for (int i = 0; i < virtualLights.Length; i++)
virtualLights[i] = new PointLight[0];
}
return true;
}