Unity debug drawray не работает

Debug.DrawRay

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Declaration

Parameters

start	Point in world space where the ray should start.
dir	Direction and length of the ray.
color	Color of the drawn line.
duration	How long the line will be visible for (in seconds).
depthTest	Should the line be obscured by other objects closer to the camera?

Description

Draws a line from start to start + dir in world coordinates.

The duration parameter determines how long the line will be visible after the frame it is drawn. If duration is 0 (the default) then the line is rendered 1 frame.

If depthTest is set to true then the line will be obscured by other objects in the Scene that are nearer to the camera.

The line will be drawn in the Scene view of the editor. If gizmo drawing is enabled in the game view, the line will also be drawn there.

Is something described here not working as you expect it to? It might be a Known Issue. Please check with the Issue Tracker at issuetracker.unity3d.com.

Copyright ©2021 Unity Technologies. Publication Date: 2021-10-08.

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Debug.DrawRay

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Параметры

start	@param start Точка в мировом пространстве, откуда начнётся луч.
dir	@param dir Направление и длина луча.
color	@param color Цвет отображаемой линии.
duration	@param duration Время отображения линии (в секундах).
depthTest	@param depthTest Будет ли линия перекрываться более близкими к камере объетами?

Описание

Рисует линию от точки start до точки start + dir в мировых координатах.

duration — сколько (в секундах) линия будет отображаться. При duration равное 0 (по умолчанию) линия будет отображаться один кадр.

Если depthTest установлен в «true», то линия будет перекрываться более близкими к камере объектами.

Линия будет нарисована в редакторе в окне сцены (Scene View). Если в окне игры (Game View) включено отображение гизмо, то линия также будет отображаться и в этом окне.

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Debug.DrawRay

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Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Submission failed

For some reason your suggested change could not be submitted. Please try again in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Parameters

start	Point in world space where the ray should start.
dir	Direction and length of the ray.
color	Color of the drawn line.
duration	How long the line will be visible for (in seconds).
depthTest	Should the line be obscured by other objects closer to the camera?

Description

Draws a line from start to start + dir in world coordinates.

The duration parameter determines how long the line will be visible after the frame it is drawn. If duration is 0 (the default) then the line is rendered 1 frame.

If depthTest is set to true then the line will be obscured by other objects in the Scene that are nearer to the camera.

The line will be drawn in the Scene view of the editor. If gizmo drawing is enabled in the game view, the line will also be drawn there.

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Copyright © 2018 Unity Technologies. Publication: 2018.2-002P. Built: 2019-01-17.

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Why the raycast is not drawn using Debug.DrawRay?

I don’t see the ray drawn anywhere when running the game in the scene view window.

I found the problem when shooting the raycast from the hand the hand rotation seems to be wrong or maybe it’s in the script. When I’m running the game the yellow raycast is pointing directly up and when the hand pointing a target the yellow direction is back and up directions that’s why it’s never red :

The hand part I’m trying to shoot raycast from is child of a child of the player.

I added an empty GameObject position and rotation set to 0,0,0 and now it’s shooting the raycast to the opposite direction not sure why :

The full script :

1 Answer 1

There are a few things to fix:

• hand.transform.TransformDirection(Vector3.forward) is pointlessly complicated. Use hand.transform.forward .
• You haven’t specified a duration for the line, so it will only last 1 frame. Here I use a duration of 5 seconds to ensure that you don’t miss it. You’ll want to remove that part once you figure out what’s wrong, or you’ll have red lines all over the place.
• Sometimes lines aren’t visible because the line is too short. I multiply the length by 10 to hopefully make the line visible.
• Log a message to the console when the raycast hits, so we know whether the line is getting drawn at all.
• As suggested by DMGregory, draw a different color line when the raycast is not hitting (I chose blue) so we know where the hand is pointed at all times.

I don’t understand what you are saying about the yellow line. You should probably share the code that you’re using to draw the yellow line.

Источник

Debug.DrawRay

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Submission failed

For some reason your suggested change could not be submitted. Please try again in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Parameters

start	Point in world space where the ray should start.
dir	Direction and length of the ray.
color	Color of the drawn line.
duration	How long the line will be visible for (in seconds).
depthTest	Should the line be obscured by other objects closer to the camera?

Description

Draws a line from start to start + dir in world coordinates.

The duration parameter determines how long the line will be visible after the frame it is drawn. If duration is 0 (the default) then the line is rendered 1 frame.

If depthTest is set to true then the line will be obscured by other objects in the scene that are nearer to the camera.

The line will be drawn in the scene view of the editor. If gizmo drawing is enabled in the game view, the line will also be drawn there.

Did you find this page useful? Please give it a rating:

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