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83 lines
2.7 KiB
83 lines
2.7 KiB
3 years ago
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using UnityEngine;
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using System.Collections;
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[ExecuteInEditMode]
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class FogVolume : MonoBehaviour
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{
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GameObject VolumeObj;
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Vector3 VolumeSize;
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Material FogMaterial;
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[SerializeField]
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Color
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InscatteringColor = Color.white, FogColor = new Color (.5f, .6f, .7f, 1);
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[SerializeField]
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float
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Visibility = 5, InscateringExponent = 2, InscatteringIntensity = 2, InscatteringTransitionWideness = 1;
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[SerializeField]
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//[Range (0, 1)]
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float
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InscatteringStartDistance = 0;
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[SerializeField]
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Light
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Sun;
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[SerializeField]
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int
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DrawOrder = 0;
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[SerializeField]
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bool HideWireframe = true, EnableInscattering = false;
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void OnEnable ()
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{
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if (!FogMaterial)
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FogMaterial = new Material (Shader.Find ("Hidden/FogVolume"));
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VolumeObj = this.gameObject;
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VolumeObj.GetComponent<Renderer>().sharedMaterial = FogMaterial;
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Camera.main.depthTextureMode |= DepthTextureMode.Depth;
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}
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// Update is called once per frame
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void Update ()
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{
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ToggleKeyword (EnableInscattering, "FOG_VOLUME_INSCATTERING_ON", "FOG_VOLUME_INSCATTERING_OFF");
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#if UNITY_EDITOR
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FogVolumeCreator.Wireframe (VolumeObj, HideWireframe);
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#endif
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FogMaterial.SetColor ("_Color", FogColor);
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FogMaterial.SetColor ("_InscatteringColor", InscatteringColor);
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if (Sun) {
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InscatteringIntensity = Mathf.Max (0, InscatteringIntensity);
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FogMaterial.SetFloat ("_InscatteringIntensity", InscatteringIntensity);
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FogMaterial.SetVector ("L", -Sun.transform.forward);
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}
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InscateringExponent = Mathf.Max (1, InscateringExponent);
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FogMaterial.SetFloat ("_InscateringExponent", InscateringExponent);
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InscatteringTransitionWideness = Mathf.Max (1, InscatteringTransitionWideness);
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FogMaterial.SetFloat ("InscatteringTransitionWideness", InscatteringTransitionWideness);
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InscatteringStartDistance = Mathf.Max (0, InscatteringStartDistance);
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FogMaterial.SetFloat ("InscatteringStartDistance", InscatteringStartDistance);
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VolumeSize = VolumeObj.transform.lossyScale;
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//bug fix. If the 3 axes values are equal, something gets broken :/
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transform.localScale = new Vector3 ((float)decimal.Round ((decimal)VolumeSize.x, 2), VolumeSize.y, VolumeSize.z);
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FogMaterial.SetVector ("_BoxMin", VolumeSize * -0.5051f);
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FogMaterial.SetVector ("_BoxMax", VolumeSize * 0.5051f);
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Visibility = Mathf.Max (0, Visibility);
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FogMaterial.SetFloat ("_Visibility", Visibility);
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GetComponent<Renderer>().sortingOrder = DrawOrder;
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}
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private static void ToggleKeyword (bool toggle, string keywordON, string keywordOFF)
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{
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Shader.DisableKeyword (toggle ? keywordOFF : keywordON);
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Shader.EnableKeyword (toggle ? keywordON : keywordOFF);
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}
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}
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