扩展 Shader 编辑器

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Shader "Unlit/Test"{Properties{_MainTex ("Texture", 2D) = "white" {}_color("Color", Color) = (1,1, 1, 1)[HideInInspector] _QueueTag ("QueueTag", Float) = 0.0[HideInInspector] _QueueTagOffset ("QueueTagOffset", Float) = 0.0}SubShader{Tags { "RenderType"="Opaque" "PerformanceChecks"="False" }ZWrite OffPass{CGPROGRAM#pragma vertex vert#pragma fragment frag// make fog work#pragma multi_compile_fog#include "UnityCG.cginc"struct appdata{float4 vertex : POSITION;float2 uv : TEXCOORD0;};struct v2f{float2 uv : TEXCOORD0;UNITY_FOG_COORDS(1)float4 vertex : SV_POSITION;};sampler2D _MainTex;float4 _MainTex_ST;float4 _color;v2f vert (appdata v){v2f o;o.vertex = mul(UNITY_MATRIX_MVP, v.vertex);o.uv = TRANSFORM_TEX(v.uv, _MainTex);UNITY_TRANSFER_FOG(o,o.vertex);return o;}fixed4 frag (v2f i) : SV_Target{// sample the texturefixed4 col = tex2D(_MainTex, i.uv);// apply fogUNITY_APPLY_FOG(i.fogCoord, col);return _color;}ENDCG}}CustomEditor "CustomShaderGUI"}

using UnityEngine;using UnityEditor;using System;public class CustomShaderGUI : ShaderGUI{    public enum QueueTag    {        Background,        Geometry,        AlphaTest,        Transparent,        Overlay    }    public static readonly string[] queueTagNames = Enum.GetNames(typeof(QueueTag));    public override void OnGUI(MaterialEditor materialEditor, MaterialProperty[] properties)    {        base.OnGUI(materialEditor, properties);        MaterialProperty queueTag = FindProperty("_QueueTag", properties);        MaterialProperty queueTagOffset = FindProperty("_QueueTagOffset", properties);        int qt = (int)queueTag.floatValue;        int qtOffset = (int)queueTagOffset.floatValue;        bool isModifyQueueTag = false;        EditorGUI.BeginChangeCheck();        qtOffset = EditorGUILayout.IntField("QueueTagOffset", qtOffset);        if (EditorGUI.EndChangeCheck())        {            materialEditor.RegisterPropertyChangeUndo("QueueTagOffset");            queueTagOffset.floatValue = (float)qtOffset;            isModifyQueueTag = true;        }        EditorGUI.BeginChangeCheck();        qt = EditorGUILayout.Popup("QueueTag", qt, queueTagNames);        if (EditorGUI.EndChangeCheck())        {            materialEditor.RegisterPropertyChangeUndo("QueueTag");            queueTag.floatValue = (float)qt;            isModifyQueueTag = true;                    }        if (isModifyQueueTag)        {            foreach (Material mat in queueTag.targets)            {                ModifyQueurTag(mat, (QueueTag)qt, qtOffset);                EditorUtility.SetDirty(mat);            }        }                            }    public void ModifyQueurTag(Material mat, QueueTag qt, int offset)    {        mat.renderQueue = offset;        switch (qt)        {            case QueueTag.Background:                mat.renderQueue += 1000;                break;            case QueueTag.Geometry:                mat.renderQueue += 2000;                break;            case QueueTag.AlphaTest:                mat.renderQueue += 2450;                break;            case QueueTag.Transparent:                mat.renderQueue += 3000;                break;            case QueueTag.Overlay:                mat.renderQueue += 4000;                break;        }    }}

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