Unity-Shading-ShaderGUI

Zephus · 发表于 2022-2-24 11:17

需求：
ShaderGUI这东西不赘述了，美术需求没有的话就像下图这样变量一多就懵了，尤其是新进到项目组的美术，知乎上的写法也很多

无GUI

代码：
绘制模块脚本
using UnityEngine;
using UnityEditor;
using System.Collections.Generic;

public static class XXVFXGUIHelper
{
static private GUIStyle _BigHeaderLabel;
static public bool DissError;
      static public GUIStyle BigHeaderLabel
{
      get
      {
         _BigHeaderLabel = new GUIStyle(EditorStyles.largeLabel);
         _BigHeaderLabel.fontStyle = FontStyle.Bold;
         _BigHeaderLabel.fontSize = 14;
         _BigHeaderLabel.alignment = TextAnchor.MiddleLeft;
         _BigHeaderLabel.fixedHeight = 30;

         Color[] pix = new Color[1];

         if (DissError == true)
         {
            pix[0] = Color.red*(Mathf.Sin(Time.time*10)); //自定义的报错显示
         }
         else
         {
            pix[0] = Color.gray;
         }

         Texture2D result = new Texture2D(1, 1);
         result.SetPixels(pix);
         result.Apply();
         _BigHeaderLabel.normal.background = result;
         _BigHeaderLabel.normal.textColor = Color.white;

         return _BigHeaderLabel;
      }
}
static public void XXHeaderBig(string header, string tooltip = null)
{
      GUILayout.Space(10);
      GUIContent content = new GUIContent(header, tooltip);
      Rect rc = GUILayoutUtility.GetRect(content, BigHeaderLabel);
      EditorGUI.LabelField(rc, content, BigHeaderLabel);
}
}
变量库，这个脚本只需要一个不用每个Shader搞一个，所有变量都放这里就够了
using UnityEngine;
using UnityEditor;
using System.Collections;
using System.Collections.Generic;

public class XXShaderGUI : ShaderGUI
{
public class Features
{
      public bool useNoise;
      public bool isEnglish;
      public bool UseNoiseRotateAngle;
      public bool isDecal;
}
public class Property
{
      public MaterialProperty Ztest;
      public MaterialProperty StencilComp;
      public MaterialProperty TexColor;
      public MaterialProperty TexColorIntensity;
      public MaterialProperty BaseTexture;
      public MaterialProperty BaseUV_Panner;
      public MaterialProperty UseMuBase;
      public MaterialProperty NoiseTexture;
      public MaterialProperty NoiseUV_Panner;
      public MaterialProperty NoiseScale;
      public MaterialProperty UseNoiseRotate;
      public MaterialProperty NoiseRotate;
      public MaterialProperty NoiseForParticle;
      public MaterialProperty NoiseUV1ORUV2;
}
}逐个变量对应，体力活
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Rendering;
using UnityEditor;
[ExecuteInEditMode]
public class XXVFXShaderGUI : XXShaderGUI
{

Property _props = new Property();
Features _features = new Features();
private void UpdateProperties(MaterialProperty[] properties)
{
      _props.Ztest = FindProperty(&#34;_Ztest&#34;, properties);
      _props.StencilComp = FindProperty(&#34;_StencilComp&#34;, properties);
      _props.TexColor = FindProperty(&#34;_TexColor&#34;, properties);
      _props.TexColorIntensity = FindProperty(&#34;_TexColorIntensity&#34;, properties);
      _props.BaseTexture = FindProperty(&#34;_BaseTexture&#34;, properties);
      _props.BaseUV_Panner = FindProperty(&#34;_BaseUV_Panner&#34;, properties);
      _props.UseMuBase = FindProperty(&#34;_UseMuBase&#34;, properties);
      _props.NoiseTexture = FindProperty(&#34;_NoiseTexture&#34;, properties);
      _props.NoiseUV_Panner = FindProperty(&#34;_NoiseUV_Panner&#34;, properties);
      _props.NoiseScale = FindProperty(&#34;_NoiseSacle&#34;, properties);
      _props.UseNoiseRotate = FindProperty(&#34;_UseNosieRotato&#34;, properties);
      _props.NoiseRotate = FindProperty(&#34;_NoiseRotato&#34;, properties);
      _props.NoiseForParticle = FindProperty(&#34;_NoiseForParticle&#34;, properties);
      _props.NoiseUV1ORUV2 = FindProperty(&#34;_NoiseUV1OR2&#34;, properties);
}
private static void ApplyKeyword(Material material, string keyword, bool toggle)
{
      if (toggle) material.EnableKeyword(keyword);
      else material.DisableKeyword(keyword);
}
private void UseNoiseRegion(MaterialEditor materialEditor, Material material)
{
      _features.useNoise = material.IsKeywordEnabled(&#34;_USENOISE_ON&#34;);
      string NotUse; string InUse; string Popup; NotUse = _features.isEnglish ? &#34;NO&#34; : &#34;停用&#34;; InUse = _features.isEnglish ? &#34;YES&#34; : &#34;启用&#34;; Popup = _features.isEnglish ? &#34;UseNoise&#34; : &#34;使用噪波&#34;;
      _features.useNoise = EditorGUILayout.Popup(Popup, _features.useNoise ? 1 : 0, new string[] { NotUse, InUse }) > 0;
      ApplyKeyword(material, &#34;_USENOISE_ON&#34;, _features.useNoise);
      if (_features.useNoise)
      {
         using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
         { string str = _features.isEnglish ? &#34;NoiseTexture&#34; : &#34;噪波贴图&#34;; materialEditor.ShaderProperty(_props.NoiseTexture, new GUIContent(str)); }
         using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
         { string str = _features.isEnglish ? &#34;NoiseUV_Panner&#34; : &#34;噪波UV流动&#34;; materialEditor.ShaderProperty(_props.NoiseUV_Panner, new GUIContent(str)); }
         using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
         { string str = _features.isEnglish ? &#34;NoiseScale&#34; : &#34;噪波尺寸&#34;; materialEditor.ShaderProperty(_props.NoiseScale, new GUIContent(str)); }
         using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
         { string str = _features.isEnglish ? &#34;NoiseForParticle&#34; : &#34;给粒子的噪波&#34;; materialEditor.ShaderProperty(_props.NoiseForParticle, new GUIContent(str)); }
         using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
         { string str = _features.isEnglish ? &#34;NoiseUV1ORUV2&#34; : &#34;用噪波做顶点偏移吗&#34;; materialEditor.ShaderProperty(_props.NoiseUV1ORUV2, new GUIContent(str)); }

         using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
         { UseNoiseRotateAngleRegion(materialEditor, material); }
      }
}
private void UseNoiseRotateAngleRegion(MaterialEditor materialEditor, Material material)
{
      _features.UseNoiseRotateAngle = material.IsKeywordEnabled(&#34;_USENOISEROTATEANGLE_ON&#34;);
      string NotUse; string InUse; string Popup; NotUse = _features.isEnglish ? &#34;NO&#34; : &#34;停用&#34;; InUse = _features.isEnglish ? &#34;YES&#34; : &#34;启用&#34;; Popup = _features.isEnglish ? &#34;UseNoiseRotateAngle&#34; : &#34;使用噪波旋转角度&#34;;
      _features.UseNoiseRotateAngle = EditorGUILayout.Popup(Popup, _features.UseNoiseRotateAngle ? 1 : 0, new string[] { NotUse, InUse }) > 0;
      ApplyKeyword(material, &#34;_USENOISEROTATEANGLE_ON&#34;, _features.UseNoiseRotateAngle);
      if (_features.UseNoiseRotateAngle)
      {
         using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
         { string str = _features.isEnglish ? &#34;NoiseRotate&#34; : &#34;噪波UV旋转&#34;; materialEditor.ShaderProperty(_props.NoiseRotate, new GUIContent(str)); }
         using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
         { string str = _features.isEnglish ? &#34;UseNoiseRotate&#34; : &#34;使用噪波旋转&#34;; materialEditor.ShaderProperty(_props.UseNoiseRotate, new GUIContent(str)); }

      }
}

private void IsDecalRegion(MaterialEditor materialEditor, Material material)
{
      _features.isDecal = material.IsKeywordEnabled(&#34;_ISDECAL_ON&#34;);
      string NotUse; string InUse; string Popup; NotUse = _features.isEnglish ? &#34;NO&#34; : &#34;停用&#34;; InUse = _features.isEnglish ? &#34;YES&#34; : &#34;启用&#34;; Popup = _features.isEnglish ? &#34;IsDecal&#34; : &#34;是贴花吗&#34;;
      _features.isDecal = EditorGUILayout.Popup(Popup, _features.isDecal ? 1 : 0, new string[] { NotUse, InUse }) > 0;
      ApplyKeyword(material, &#34;_ISDECAL_ON&#34;, _features.isDecal);
      if(_features.isDecal)
      {
         material.SetFloat(&#34;_Ztest&#34;, 0);
         material.SetFloat(&#34;_StencilComp&#34;, 3);
      }
      else
      {
         material.SetFloat(&#34;_Ztest&#34;, 4);
      }
}

private void IsEnglishRegion(MaterialEditor materialEditor, Material material)
{
      _features.isEnglish = material.IsKeywordEnabled(&#34;_ISENGLISH_ON&#34;);
      _features.isEnglish = EditorGUILayout.Popup(&#34;IsEnglish&#34;, _features.isEnglish ? 1 : 0, new string[] { &#34;NO&#34;, &#34;YES&#34; }) > 0;
      ApplyKeyword(material, &#34;_ISENGLISH_ON&#34;, _features.isEnglish);
}
public override void OnGUI(MaterialEditor materialEditor, MaterialProperty[] properties)
{
      XXVFXGUIHelper.DissError = false;
      var material = materialEditor.target as Material;

      UpdateProperties(properties);

      using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
      { IsEnglishRegion(materialEditor, material); }
      string General = _features.isEnglish ? &#34;General&#34; : &#34;基础属性&#34;;
      XXVFXGUIHelper.XXHeaderBig(General, &#34;&#34;);
      using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
      {
         using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
         { string str = _features.isEnglish ? &#34;TexColor&#34; : &#34;贴图颜色&#34;; materialEditor.ShaderProperty(_props.TexColor, new GUIContent(str)); }
         using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
         { string str = _features.isEnglish ? &#34;TexColorIntensity&#34; : &#34;贴图颜色强度&#34;; materialEditor.ShaderProperty(_props.TexColorIntensity, new GUIContent(str)); }
         using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
         { string str = _features.isEnglish ? &#34;BaseTexture&#34; : &#34;基础贴图&#34;; materialEditor.ShaderProperty(_props.BaseTexture, new GUIContent(str)); }
         using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
         { string str = _features.isEnglish ? &#34;BaseUV_Panner&#34; : &#34;基础UV流动&#34;; materialEditor.ShaderProperty(_props.BaseUV_Panner, new GUIContent(str)); }
         using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
         { string str = _features.isEnglish ? &#34;UseMuBase&#34; : &#34;基础图乘猛一点&#34;; materialEditor.ShaderProperty(_props.UseMuBase, new GUIContent(str)); }
         using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
         { IsDecalRegion(materialEditor, material); }
      }

      string Noise = _features.isEnglish ? &#34;Noise&#34; : &#34;噪波&#34;;
      XXVFXGUIHelper.XXHeaderBig(Noise, &#34;&#34;);
      using (new EditorGUILayout.VerticalScope(&#34;helpbox&#34;))
      {
         UseNoiseRegion(materialEditor, material);
      }
}
}成品：

其他可能：
因为绘制模块创建的是Texture2D，所以可以玩的很花，比如我的Shader里有一个情况是某2个变体不能同时开启，我在GUI里做了呼吸红色的报警功能

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