Unity3d the idea of the enemy cone angle of view

In particular, the cone-shaped angle effect like the Allied Suicide Squad.

Think about it, think of a few stupid ways, if you have a good way, please tell me

1.Raycast method

Transmitting rays forward from the character position, then debug.drawline

But only the rays are drawn, without the cone effect.

        if (Physics.raycast (Transform.position, raydirection, out hit, viewdistance))        {            //check the aspect            if ( Hit.collider.name! = "Player")            {                debug.drawline (transform.position, Hit.point, Color.green);}        }        else        {            debug.drawline (transform.position, Leftraypoint, Color.green);         }

Debug.drawline to be implemented in the Ondrawgizmos () event

2.Spotlight method

The simplest way, the spotlight spotlight is placed horizontally, above the ground, and what you want to project, like the ground, opens in a new layer set to spotlight culling mask to avoid unnecessary illumination.

3. Projection method

The most cheating method, put a conical object above the character, Bo Master in this lazy, with the plane, placed in the camera can not see the place (infinitely high), in a new direction of light, vertical direction, layer settings ibid, want to change the shadow color can write their own shader.

You guys have a better way to tell me.

-----by wolf96 http://blog.csdn.net/wolf96

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

Unity3d the idea of the enemy cone angle of view