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Question by LeftyTwoGuns · Jul 15, 2014 at 05:28 AM · mousepositionworldspaceaim

Cast a cursor into world space from a game object?

I have a script that converts the mouse cursor into a point in the world space so that the player character can look at the mouse cursor using IK. It's pretty accurate, but when that character is aiming a gun, a ray casted from the gun position will hit slightly off from where the mouse cursor is aiming. This obviously isn't desirable for accuracy as far as gameplay is concerned.

I was wondering how I could cast a visible crosshair into the world space from the bullet launch position of a gun so that the player is aiming with a cursor that actually represents where the bullet will hit, rather than the slightly inaccurate mouse cursor.

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avatar image LeftyTwoGuns · Jul 15, 2014 at 06:44 PM 0
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Reading into it some, it seems the most common suggestion for something like this is to use either a projector or a spot light.

I'm assu$$anonymous$$g a spot light is computationally expensive, though and I've never used a projector before so I'm not sure on their performance impact. Which one of these would be more efficient?

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