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79 Zeilen
2.6 KiB
79 Zeilen
2.6 KiB
using System;
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using UnityEngine;
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using System.Collections;
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[ExecuteInEditMode]
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public class PartBloom : MonoBehaviour
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{
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//采样率
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public int samplerScale = 1;
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//高亮部分提取阈值
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public Color colorThreshold = Color.gray;
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//Bloom泛光颜色
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public Color bloomColor = Color.white;
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//Bloom权值
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[Range(0.0f, 1.0f)]
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public float bloomFactor = 0.5f;
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/// <summary>
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/// Bloom材质球
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/// </summary>
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public Material m_bloom_mat = null;
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/// <summary>
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/// 特定渲染图
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/// </summary>
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[SerializeField]
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private RenderTexture m_R;
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RenderTexture temp1;
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RenderTexture temp2;
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private Camera rt_bloom_camera;
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void Start()
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{
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rt_bloom_camera = GameObject.Find("BloomCamera").GetComponent<Camera>();
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Debug.Log(rt_bloom_camera.name);
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}
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void OnRenderImage(RenderTexture source, RenderTexture destination)
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{
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if (m_bloom_mat != null && rt_bloom_camera != null)
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{
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m_R = rt_bloom_camera.targetTexture;
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// m_R = RenderTexture.GetTemporary(source.width / 2, source.height / 2, 0);
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temp1 = RenderTexture.GetTemporary(m_R.width, m_R.height, 0);
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temp2 = RenderTexture.GetTemporary(m_R.width, m_R.height, 0);
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//复制泛光图
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Graphics.Blit(m_R, temp1);
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//根据阈值提取高亮部分,使用pass0进行高亮提取
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m_bloom_mat.SetVector("_colorThreshold", colorThreshold);
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Graphics.Blit(temp1, temp2, m_bloom_mat, 0);
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//高斯模糊，两次模糊，横向纵向，使用pass1进行高斯模糊
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m_bloom_mat.SetVector("_offsets", new Vector4(0, samplerScale, 0, 0));
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Graphics.Blit(temp2, temp1, m_bloom_mat, 1);
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m_bloom_mat.SetVector("_offsets", new Vector4(samplerScale, 0, 0, 0));
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Graphics.Blit(temp1, temp2, m_bloom_mat, 1);
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//Bloom，将模糊后的图作为Material的Blur图参数
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m_bloom_mat.SetTexture("_BlurTex", temp2);
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m_bloom_mat.SetVector("_bloomColor", bloomColor);
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m_bloom_mat.SetFloat("_bloomFactor", bloomFactor);
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//使用pass2进行景深效果计算，清晰场景图直接从source输入到shader的_MainTex中
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Graphics.Blit(source, destination, m_bloom_mat, 2);
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rt_bloom_camera.targetTexture = m_R;
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//释放申请的RT
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RenderTexture.ReleaseTemporary(temp1);
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RenderTexture.ReleaseTemporary(temp2);
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}
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}
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public void SetMaterialRT(RenderTexture rt)
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{
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// m_R = rt;
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}
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}
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