Creator3D 如何计算反射？

Creator 3.x
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Creator3D 如何计算反射？

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@JayceLai

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:pray::pray::pray:

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@JayceLai

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reflect ( incident: Vec2, normal: Vec2 )//求反射角

{

    //反射方向的计算公式: reflect = incident - 2 * dot(incident, normal) * normal

    const dotProduct = Vec2.dot( incident.normalize(), normal );

    const reflection = incident.subtract( normal.multiplyScalar( 2 * dotProduct ) );

    return reflection;

}
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