ray s hardware

?? Recently, when solving three-dimensional problems, it is necessary to judge whether the segment crosses the cube, and the question can be extended as follows: whether the ray passes through the cube aabb.?? The commonly used algorithm for collision detection in 3D game development is the axis-aligned rectangular bounding box (axially Aligned bounding box, AABB) box method, the basic idea is to use a cube or a sphere to completely wrap the 3D object

Welcome to join the Cocos2d-x Exchange Group: 193411763When reproduced, please indicate the original source: http://blog.csdn.net/u012945598/article/details/39927911--------------------------------------------------------------------------------------------------------------- --------------------------------------------1. Three-dimensional pickup technologyIn 3D games usually have such a demand, the user can choose some objects in the 3D world, such as drag-and-drop operations, then need to prog

Cocos2d-x tutorial (35)-3D pickup Ray-AABB Collision Detection Algorithm Certificate ----------------------------------------------------------------------------------------------------------------------------------------------------------- 1. 3D pickup Technology In 3D games, users can select certain objects in the 3D world for operations such as drag and drop, in this case, the program needs to convert the point coordinate on the two-dimensional sc

Ray: A ray is a zero-end line emitted by a point in the 3D world in One direction, which stops firing when colliding with other objects in the launch trajectory.Ray Rays and Raycasthit are two of the most common tools used in the shooting.Uses: Ray is used for collision detection (such as whether to hit the target in the shooting game), the role movement, to dete

FeedRecently a series of physics related, first of all to summarize some of the things written last year, and then see if you can masturbate a physics engine out.Ray detection in the previous write Ray tracking when there are some written, but at that time is relatively simple to write, just recently work on the use of these, so good to write.Write Ray Sphere's collision detection today.Environment:Unity5.2

Comparison of Dr dual-energy subtraction and DR chest X-ray and CT absorption dose in the chest; Research Institute of medical imaging, Nanjing General Hospital of Nanjing Military Region (210002) Wang Jun digital X-ray photography (DR) chest double-energy subtraction plays a role in the diagnosis of pneumothorax, pulmonary nodules and calcification in nodules, rib fracture, coronary artery calcification, e

Problem Most collision detection methods only detect two objects in the event of physical collisions. However, if one small object quickly passes through another object, YourProgramThe update speed may not be able to keep up with and the collision cannot be detected. For example, a bullet in a bottle. A bullet shoots at a speed of 5000 km/h to a bottle, and the width of the bottle is only 15 cm. The xNa program updates 60 times per second, so each update of the bullet will move forward to a d

IntroductionIn the previous section, I described how to implement a ray-to-triangle cross-detection algorithm. However, we should know that in game development, a model has a lot of triangles, if you want to all objects, all the triangles to do this detection, even if the current computer computing ability, is not efficient to complete. Therefore, we need to use other means to remove some of the objects that are not likely to cross, this early thinkin

Method 1: Physics. Raycast Light Projection 1. static functionRaycast(Origin: Vector3,Direction: Vector3,Distance: Float = Mathf. Infinity,LayerMask: Int = kDefaultRaycastLayers): boolA static radiation emission method cast a ray in the scene that can collide with all the colliding devices. Parameter description: origin: Ray start point direction: Ray direction d

Recently in a scrollview under a single item to implement long press the other effects appear. You can do this normally on the Ngui.But there are problems on the 2D toolkit. Sliding ScrollView on Ngui is actually dragging each item to achieve the drag effect. The 2D toolkit on the ScrollView has a large collision body.By triggering the collision body to implement the drag. The difference here is that when you want to implement a long press on the item on the 2D toolkit, it is obscured by the col