26 lines
712 B
C#
26 lines
712 B
C#
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using UnityEngine;
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using System.Collections;
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public class GPUTrailSpline : MonoBehaviour
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{
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/// <summary>
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/// start～end をつなぐ曲線上の点をtに応じて求める
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/// http://t-pot.com/program/2_3rdcurve/index.html
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/// </summary>
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/// <param name="t">0f~1f</param>
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/// <param name="prev"></param>
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/// <param name="start"></param>
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/// <param name="end"></param>
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/// <returns></returns>
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public static Vector3 CatmullRom(float t, Vector3 prev, Vector3 start, Vector3 end)
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{
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var t2 = t * t;
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return
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0.5f * (
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t2 * (prev - 2f * start + end)
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+ t * (-prev + end)
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)
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+ start;
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}
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}
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