噩梦5Tilt Shift (Lens Blur) 倾斜移位（镜头模糊）

最新推荐文章于 2024-08-07 09:55:31 发布

nonomagenet

最新推荐文章于 2024-08-07 09:55:31 发布

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分类专栏： unity3dC# 教程文章标签： unity3d

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本文档介绍了如何在Unity3D中使用Tilt Shift (Lens Blur) 效果来创建模拟倾斜移位镜头模糊的视觉效果。通过调整blurArea和maxBlurSize参数，可以控制模糊区域和模糊程度。同时，提供了质量设置和抗锯齿处理，以适应不同的项目需求。

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using System;
using UnityEngine;

namespace UnitySampleAssets.ImageEffects
{
[RequireComponent (typeof(Camera))]
[AddComponentMenu ("Image Effects/Camera/Tilt Shift (Lens Blur)")]
class TiltShift : PostEffectsBase {
public enum TiltShiftMode
{
TiltShiftMode,
IrisMode,
}
public enum TiltShiftQuality
{
Preview,
Normal,
High,
}

public TiltShiftMode mode = TiltShiftMode.TiltShiftMode;
public TiltShiftQuality quality = TiltShiftQuality.Normal;

[Range(0.0f, 15.0f)]
public float blurArea = 1.0f;

[Range(0.0f, 25.0f)]
public float maxBlurSize = 5.0f;

[Range(0, 1)]
public int downsample = 0;

public Shader tiltShiftShader = null;
private Material tiltShiftMaterial = null;

public override bool CheckResources () {
CheckSupport (true);

tiltShiftMaterial = CheckShaderAndCreateMaterial (tiltShiftShader, tiltShiftMaterial);

if (!isSupported)
ReportAutoDisable ();
return isSupported;
}

void OnRenderImage (RenderTexture source, RenderTexture destination) {
if (CheckResources() == false) {
Graphics.Blit (source, destination);
return;
}

tiltShiftMaterial.SetFloat("_BlurSize", maxBlurSize < 0.0f ? 0.0f : maxBlurSize);
tiltShiftMaterial.SetFloat("_BlurArea", blurArea);
source.filterMode = FilterMode.Bilinear;

RenderTexture rt = destination;
if (downsample > 0f) {
rt = RenderTexture.GetTemporary (source.width>>downsample, source.height>>downsample, 0, source.format);
rt.filterMode = FilterMode.Bilinear;
}

int basePassNr = (int) quality; basePassNr *= 2;
Graphics.Blit (source, rt, tiltShiftMaterial, mode == TiltShiftMode.TiltShiftMode ? basePassNr : basePassNr + 1);

if (downsample > 0) {
tiltShiftMaterial.SetTexture ("_Blurred", rt);
Graphics.Blit (source, destination, tiltShiftMaterial, 6);
}

if (rt != destination)
RenderTexture.ReleaseTemporary (rt);
}
}
}