AOVoxelTree::AOVoxelTree(
const Scene& scene,
const GScalar max_extent_fraction)
{
assert(max_extent_fraction > GScalar(0.0));
// Print a progress message.
RENDERER_LOG_INFO("building ambient occlusion voxel tree...");
// Compute the bounding box of the scene.
const GAABB3 scene_bbox = scene.compute_bbox();
// Compute the maximum extent of a leaf, in world space.
const GScalar max_extent = max_extent_fraction * max_value(scene_bbox.extent());
// Build the tree.
BuilderType builder(m_tree, scene_bbox, max_extent);
build(scene, builder);
builder.complete();
// Print statistics.
TreeStatisticsType tree_stats(m_tree, builder);
RENDERER_LOG_DEBUG("ambient occlusion voxel tree statistics:");
tree_stats.print(global_logger());
}
void AssemblyTree::build_assembly_tree()
{
// Insert all assembly instances of the scene into the tree.
for (const_each<AssemblyInstanceContainer> i = m_scene.assembly_instances(); i; ++i)
{
// Retrieve the assembly instance.
const AssemblyInstance& assembly_instance = *i;
// Retrieve the assembly.
const Assembly& assembly = assembly_instance.get_assembly();
// Skip empty assemblies.
if (assembly.object_instances().empty())
continue;
// Insert the assembly instance into the root leaf.
insert(
assembly_instance.get_uid(),
assembly_instance.compute_parent_bbox());
}
// Log a progress message.
RENDERER_LOG_INFO(
"building assembly bvh (%s %s)...",
pretty_int(size()).c_str(),
plural(size(), "assembly instance").c_str());
// Build the assembly tree.
AssemblyTreePartitioner partitioner;
AssemblyTreeBuilder builder;
builder.build(*this, partitioner);
// Collect and print assembly tree statistics.
AssemblyTreeStatistics tree_stats(*this, builder);
RENDERER_LOG_DEBUG("assembly bvh statistics:");
tree_stats.print(global_logger());
}
