#Unity raycast how to

The next step is to set the direction that the ray will go, which for first-person shooter games, is usually the position of the mouse. To set the command for the origin point of the main camera view, you must create a variable for the ray. This is essentially, the main camera’s view of the game, or the way the person playing is looking at the game. The next step is to decide where the origin point of the ray will be, which in most games, consists of the main camera view.

After creating a script, and naming it (maybe by the function that will be performed by the ray cast), you must open the script, which is, by default, powered by JavaScript in Unity. It really depends on what you want the ray and objects to accomplish once they intersect. Layer Mask: Used to select objects to ignore when casting a rayĪll of these parameters can be used in a command and also, only some of them may be used.Origin: The starting point of the ray in world coordinates.There are five parameters to the structure of a command that include To create a command in the script, there is a basic setup of required information to generate the command. Obviously, there must also first be objects within the game world, as they are the game objects that the ray cast may intersect or interact with. In order to create a ray cast in the game world, you must first create a new script, which is where you will type all the information for the ray cast to be created.

Looking for a way to learn more about raycasting? Take a course that will teach you more about working with the Unity program in game design.

#Unity raycast how to

It is important to understand a vector (ray) and the many functions it can perform, such as shooting in a first-person shooting game, or picking up an item within the game, but first it is important to understand how to create a ray cast. This function is most commonly used in first-person shooter games, where the main camera (the character) is the ray’s origin (starting point) and the ray is cast to interact with other objects in the game that may come in contact with the ray. The purpose of the ray (vector) is to determine if it intersects with any colliders or other game objects. Ray Casting is forming a line or vector from a specific point to another point in a 3D plane. Most modern video games utilize ray casting.