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Reference.org
Slab method
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<p>In <a href="/facts/Computer_graphics/lapBE8wv">computer graphics</a>, the slab method is an <a href="/facts/Algorithm/fnl5NmRt">algorithm</a> used to solve the ray-box intersection problem in case of an <a href="/facts/Axis-aligned_object/Vej1lrE5">axis-aligned</a> <a href="/facts/Bounding_box/oFHL8bxI">bounding box</a> (AABB), i.e. to determine the intersection points between a <a href="/facts/Ray_(geometry)/gJqsr4Gj">ray</a> and the box. Due to its efficient nature, that can allow for a <a href="/facts/Branch_(computer_science)/obBGrnor">branch</a>-free implementation, it is widely used in computer graphics applications. </p>