43 lines
1.5 KiB
C#
43 lines
1.5 KiB
C#
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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* All rights reserved.
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*
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* Licensed under the Oculus SDK License Agreement (the "License");
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* you may not use the Oculus SDK except in compliance with the License,
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* which is provided at the time of installation or download, or which
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* otherwise accompanies this software in either electronic or hard copy form.
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*
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* You may obtain a copy of the License at
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*
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* https://developer.oculus.com/licenses/oculussdk/
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*
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* Unless required by applicable law or agreed to in writing, the Oculus SDK
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using UnityEngine;
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namespace Oculus.Interaction
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{
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public class ConeUtils
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{
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public static bool RayWithinCone(Ray ray, Vector3 position, float apertureDegrees)
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{
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float minDotProductThreshold = Mathf.Cos(apertureDegrees * Mathf.Deg2Rad);
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var vectorToInteractable = position - ray.origin;
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var distanceToInteractable = vectorToInteractable.magnitude;
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if (Mathf.Abs(distanceToInteractable) < 0.001f) return true;
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vectorToInteractable /= distanceToInteractable;
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var dotProduct = Vector3.Dot(vectorToInteractable, ray.direction);
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return dotProduct >= minDotProductThreshold;
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}
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}
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}
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