March 2017
Intermediate to advanced
480 pages
11h 3m
English
Content preview from Game Physics Cookbook
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Ray
A ray is represented by a point in space and a direction. The ray extends from the point to infinity in the given direction. For our purposes, the direction of a ray is always assumed to be normalized:
Getting ready
We are going to declare a new Ray structure. This new structure will consist of a Point representing the origin of the ray and a vec3 representing the direction of the ray. It is assumed that the direction vector will always be normalized. We will also implement a helper function to create a ray given two points.
How to do it…
Follow these steps to implement a 3D ray:
- Declare the new
Raystructure inGeometry3D.h:typedef struct Ray { ...
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