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Question by aoiwef · Sep 11, 2012 at 04:58 AM · c#objectflashlight

When flashlight hits invisible object, make it appear?

Using C#, I would like to be able to use flashlights to make objects appear and disappear, but I don't know how. Currently I have two different types of lights which can be switched on/off by pressing certain keys.

This is basically what I want to happen: An object starts off invisible. When a certain flashlight's light (just call it flashlight1) hits this object, the object should appear, but at all other times, it should be invisible. I'm currently trying to test it using a tree (with a mesh renderer). Could someone please tell me how to code this? Yes, the script is attached to the flashlight already.

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avatar image adrenak · Sep 11, 2012 at 07:37 AM 1
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I am not sure if you have a test in Unity whether light is falling on a mesh or not. But you can do either of these:

1) Use Vector3.Angle. When the angle between the flashlight and the object is withing some range, then turn it visible

2) Use raycasts. When the raycast hits, turn it visible

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