BSP (binary space partitioning) tree is another type of space segmentation, and its industrial application has been in the game for many years (Doom was the first commercial game using the BSP tree). Despite the BSP tree is not today as in the past so popular, but now the technology is still widely used. qms+s~oA
BSP when you look at it in terms of collision detection is extremely clean and nice and high efficiency, and immediately make you themselves. not only the BSP tree, polygon Cut outstanding performance, but also allows us to effectively use free-style world-object collision detection. BSP BSP tree traversal is to use a basic technique. The collision detection is essentially to reduce the tree traversal or search. This approach is useful because it excluded a large number of polygons in the early, so in the end we were only a small number of side collision detection. As I said before, with the separation between two objects identified surface method is suitable for two objects to determine whether the intersection. If there is separation surface, there is no collision. Therefore,Womens Nike Heels, we recursively traverse the world face the tree and determine whether partitioning or bounding box and bounding sphere intersection. We can also test each polygon of an object to improve accuracy. for this The simplest kind of test is one way to test to see whether all parts of the object surface in the side split. This operation is really very simple, we use the Cartesian plane equation ax + by + cz + d = 0 to determine point at which side of the plane. if the equation, the point in the plane; if ax + by + cz + d> 0 then the points in the plane of the front; if ax + by + cz + d 5ur
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