v2 Directory Reference

Files
	bbox.h
	binned_sah_builder.h
	bvh.h
	default_builder.h
	executor.h
	index.h
	mini_tree_builder.h
	node.h
	platform.h
	ray.h
	reinsertion_optimizer.h
	split_heuristic.h
	stack.h
	stream.h
	sweep_sah_builder.h
	thread_pool.h
	top_down_sah_builder.h
	utils.h
	vec.h

Detailed Description

These headers, providing routines to construct and navigate bounding volume hierarchies, have been copied from https://github.com/madmann91/bvh commit 66e445b92f68801a6dd8ef94.

Minor changes have been subsequently been applied to achieve compilation with C++17:

• inclusion of alternative span, when std::span is not found
• replacement of C++20 defaulted comparison operators with actual implementation
• old-style struct construction for objects of type "Reinsertion"
• use of std::inner_product instead of std::transform_reduce (gcc 8.5 had problems)

This is needed since ROOT should compile with C++17.