Game Kit: Laser System (C++)

Laser System

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Screenshots:

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Fully customizable Laser System

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• Implemented in both C++ and BP.

• Beam and impact effects are created in Niagara. You can create your new beam and impact and easily integrate it into the system.

• Laser beams can be reflected from mirror material and also can be used as triggers.

How-To

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You have to create a new trace channel for laser.

Edit -> Project Settings -> Collision

You can create a new trace channel for the laser in the Collision panel as shown in the image below.

These settings are saved in DefaultEngine.ini under CollisionProfile section.

You need to find out to which GameTraceChannel is set to LineTrace. In my case it is set to ECC_GameTraceChannel1.

  [/Script/Engine.CollisionProfile]
  +DefaultChannelResponses=(Channel=ECC_GameTraceChannel1,DefaultResponse=ECR_Block,bTraceType=True,bStaticObject=False,Name="LaserTrace")

Finally, replace the value on line 16 of LaserEmitter.h with yours.

  static ECollisionChannel ECC_LaserTrace	= ECollisionChannel::ECC_GameTraceChannel1;

And that’s it… You can add the BP_LaserEmitter actor to the scene and can set its parameters as you like.