private void build()
{
lock (lockObj)
{
// double check flag
if (builtAccel != 0)
{
return;
}
if (primitives != null)
{
int n = primitives.getNumPrimitives();
if (n >= 1000)
{
UI.printInfo(UI.Module.GEOM, "Building acceleration structure for {0} primitives ...", n);
}
accel = AccelerationStructureFactory.create(acceltype, n, true);
accel.build(primitives);
}
else
{
// create an empty accelerator to avoid having to check for null
// pointers in the intersect method
accel = new NullAccelerator();
}
builtAccel = 1;
}
}
/**
* 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)
{
stats.reset();
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);
// prepare lights
createAreaLightInstances();
// 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 ...");
stats.setResolution(imageWidth, imageHeight);
sampler.prepare(options, this, imageWidth, imageHeight);
sampler.render(display);
// show statistics
stats.displayStats();
lightServer.showStats();
// discard area lights
removeAreaLightInstances();
// discard baking tesselation/accel structure
bakingPrimitives = null;
bakingAccel = null;
UI.printInfo(UI.Module.SCENE, "Done.");
}