Exemplo n.º 1
0
	int encodeIdx() const
	{
		return (node->is_leaf())? ~idx: idx;
	}
Exemplo n.º 2
0
CCL_NAMESPACE_BEGIN

/* BVH Node */

int BVHNode::getSubtreeSize(BVH_STAT stat) const
{
	int cnt = 0;

	switch(stat)
	{
		case BVH_STAT_NODE_COUNT:
			cnt = 1;
			break;
		case BVH_STAT_LEAF_COUNT:
			cnt = is_leaf() ? 1 : 0;
			break;
		case BVH_STAT_INNER_COUNT:
			cnt = is_leaf() ? 0 : 1;
			break;
		case BVH_STAT_TRIANGLE_COUNT:
			cnt = is_leaf() ? reinterpret_cast<const LeafNode*>(this)->num_triangles() : 0;
			break;
		case BVH_STAT_CHILDNODE_COUNT:
			cnt = num_children();
			break;
		case BVH_STAT_QNODE_COUNT:
			cnt = 1;
			for(int i = 0; i < num_children(); i++) {
				BVHNode *node = get_child(i);
				if(node->is_leaf()) {
					cnt += 1;
				}
				else {
					for(int j = 0; j < node->num_children(); j++) {
						cnt += node->get_child(j)->getSubtreeSize(stat);
					}
				}
			}
			return cnt;
		case BVH_STAT_ALIGNED_COUNT:
			if(!is_unaligned) {
				cnt = 1;
			}
			break;
		case BVH_STAT_UNALIGNED_COUNT:
			if(is_unaligned) {
				cnt = 1;
			}
			break;
		case BVH_STAT_ALIGNED_INNER_COUNT:
			if(!is_leaf()) {
				bool has_unaligned = false;
				for(int j = 0; j < num_children(); j++) {
					has_unaligned |= get_child(j)->is_unaligned;
				}
				cnt += has_unaligned? 0: 1;
			}
			break;
		case BVH_STAT_UNALIGNED_INNER_COUNT:
			if(!is_leaf()) {
				bool has_unaligned = false;
				for(int j = 0; j < num_children(); j++) {
					has_unaligned |= get_child(j)->is_unaligned;
				}
				cnt += has_unaligned? 1: 0;
			}
			break;
		case BVH_STAT_ALIGNED_INNER_QNODE_COUNT:
			{
				bool has_unaligned = false;
				for(int i = 0; i < num_children(); i++) {
					BVHNode *node = get_child(i);
					if(node->is_leaf()) {
						has_unaligned |= node->is_unaligned;
					}
					else {
						for(int j = 0; j < node->num_children(); j++) {
							cnt += node->get_child(j)->getSubtreeSize(stat);
							has_unaligned |= node->get_child(j)->is_unaligned;
						}
					}
				}
				cnt += has_unaligned? 0: 1;
			}
			return cnt;
		case BVH_STAT_UNALIGNED_INNER_QNODE_COUNT:
			{
				bool has_unaligned = false;
				for(int i = 0; i < num_children(); i++) {
					BVHNode *node = get_child(i);
					if(node->is_leaf()) {
						has_unaligned |= node->is_unaligned;
					}
					else {
						for(int j = 0; j < node->num_children(); j++) {
							cnt += node->get_child(j)->getSubtreeSize(stat);
							has_unaligned |= node->get_child(j)->is_unaligned;
						}
					}
				}
				cnt += has_unaligned? 1: 0;
			}
			return cnt;
		case BVH_STAT_ALIGNED_LEAF_COUNT:
			cnt = (is_leaf() && !is_unaligned) ? 1 : 0;
			break;
		case BVH_STAT_UNALIGNED_LEAF_COUNT:
			cnt = (is_leaf() && is_unaligned) ? 1 : 0;
			break;
		case BVH_STAT_DEPTH:
			if(is_leaf()) {
				cnt = 1;
			}
			else {
				for(int i = 0; i < num_children(); i++) {
					cnt = max(cnt, get_child(i)->getSubtreeSize(stat));
				}
				cnt += 1;
			}
			return cnt;
		default:
			assert(0); /* unknown mode */
	}

	if(!is_leaf())
		for(int i = 0; i < num_children(); i++)
			cnt += get_child(i)->getSubtreeSize(stat);

	return cnt;
}