52 lines
1.6 KiB
C#
52 lines
1.6 KiB
C#
using System;
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using UnityEngine;
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namespace UnityStandardAssets.Utility
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{
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public class DynamicShadowSettings : MonoBehaviour
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{
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public Light sunLight;
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public float minHeight = 10;
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public float minShadowDistance = 80;
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public float minShadowBias = 1;
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public float maxHeight = 1000;
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public float maxShadowDistance = 10000;
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public float maxShadowBias = 0.1f;
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public float adaptTime = 1;
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private float m_SmoothHeight;
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private float m_ChangeSpeed;
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private float m_OriginalStrength = 1;
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private void Start()
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{
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m_OriginalStrength = sunLight.shadowStrength;
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}
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// Update is called once per frame
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private void Update()
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{
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Ray ray = new Ray(Camera.main.transform.position, -Vector3.up);
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RaycastHit hit;
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float height = transform.position.y;
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if (Physics.Raycast(ray, out hit))
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{
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height = hit.distance;
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}
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if (Mathf.Abs(height - m_SmoothHeight) > 1)
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{
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m_SmoothHeight = Mathf.SmoothDamp(m_SmoothHeight, height, ref m_ChangeSpeed, adaptTime);
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}
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float i = Mathf.InverseLerp(minHeight, maxHeight, m_SmoothHeight);
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QualitySettings.shadowDistance = Mathf.Lerp(minShadowDistance, maxShadowDistance, i);
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sunLight.shadowBias = Mathf.Lerp(minShadowBias, maxShadowBias, 1 - ((1 - i)*(1 - i)));
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sunLight.shadowStrength = Mathf.Lerp(m_OriginalStrength, 0, i);
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}
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}
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}
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