## Un consultant daily rates 2019

1) aabb 包围盒: aabb 包围盒是与坐标轴对齐的包围盒, 简单性好, 紧密性较差(尤其对斜对角方向放置的瘦长形对象, 採用aabb, 将留下非常大的边角空隙, 导致大量不是必需的包围盒相交測试).当物体旋转之后需对aabb 进行相同的旋转并更新; 当物体变形之后仅仅需对变形了的基本几何元素相应的包围盒又一 ...

Specialized algorithms for each: Sphere/sphere AABB/AABB OBB/OBB Ray/sphere Triangle/Triangle */60 Collision Test Example Sphere-Sphere Find distance between centers of spheres Compare to sum of sphere radii If distance is less, they collide For efficiency, check squared distance vs. square of sum of radii d r2 r1 */60 Collision Test Example ...

Defines the transition between AABB and OBB in the collision tree. This is the number of the deepest (close to triangles) levels represented by OBB (coarser levels will use AABB). By default if the triangle mesh is deformable, only one level of OBB is used (every other level uses AABB as it is faster to update).

perform collision checking using axis-aligned bounding box (AABB) trees; RAPID is designed for collision detection using oriented bounding box (OBB) trees [9], and PQP performs separation distance queries using rectangular swept sphere (RSS) trees [13]. It is hard to use a different bound-ing volume with each of these libraries or use a different

Jun 01, 2015 · Finally, double bounding volumes were used; Zhigang et al., (2010) combined the best of AABB's and OBB's, whereas Chang et al., (2008) exploit the compactness of OBB's and the simplicity of spheres. 3.3 Axis-Aligned bounding box (AABB) An AABB is an enclosing axis-aligned rectangle that covers the polyhedron.