public bool prepare(Options options, Scene scene, int w, int h)
{
this.scene = scene;
imageWidth = w;
imageHeight = h;
// prepare table used by deterministic anti-aliasing
sigma = QMC.generateSigmaTable(1 << 7);
return(true);
}
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 = FilterFactory.get(filterName);
// adjust filter
if (filter == null)
{
UI.printWarning(UI.Module.BCKT, "Unrecognized filter type: \"{0}\" - defaulting to box", filterName);
filter = new BoxFilter(1);
filterName = "box";
}
fhs = filter.getSize() * 0.5f;
fs = (int)Math.Ceiling(subPixelSize * (fhs - 0.5f));
// prepare QMC sampling
sigma = QMC.generateSigmaTable(subPixelSize << 7);
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);
}