Raycasting along line renderer width

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I am trying to make an attack indicator. In order to do this I am using a linerenderer which follows a ray to detect collisions. The only problem is that the ray is casted along linerendere's center and I want two rays going along its margins. Any advice?

[1]: /storage/temp/187666-screenshot-2021-10-19-153127.png

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Answer by Captain_Pineapple · Oct 19, 2021 at 01:00 PM

assuming that your linerenderer direction is known as Vector3 LR_Dir then your raycast should have origin and riection as follows:

 Vector3 rightOrigin = LR_Origin_Position + Vector3.Cross(LR_Dir, Vector3.up).normalized * LR_width;
 Vector3 leftOrigin = LR_Origin_Position - Vector3.Cross(LR_Dir, Vector3.up).normalized * LR_width;

raycast direction should just be the same the linerenderers. To make that a bit more pretty you should first calculate the crossproduct so that you do not calculate that twice every time.

Let me know if that helped.

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MrWy07 · Oct 19, 2021 at 07:08 PM 0

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Thanks so much for your advice, it works!

Raycasting along line renderer width

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