Tungdv
120 lines
4.8 KiB
C#
120 lines
4.8 KiB
C#
using UnityEngine;
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using UnityEditor;
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using System;
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using UnityEngine.Rendering;
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#if UNITY_EDITOR
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public class BrewMonsterUnlitShaderGUI : ShaderGUI
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{
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// Properties
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private MaterialProperty colorProp;
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private MaterialProperty baseMapProp;
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private MaterialProperty shadowStrengthProp;
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private MaterialProperty alphaClipProp;
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private MaterialProperty cutoffProp;
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private MaterialProperty alphaModulateProp;
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private MaterialProperty surfaceProp;
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private MaterialProperty srcBlendProp;
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private MaterialProperty dstBlendProp;
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private MaterialProperty zWriteProp;
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private MaterialProperty cullProp;
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// UI Labels
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private static readonly GUIContent baseMapLabel = new GUIContent("Base Map");
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private static readonly GUIContent colorLabel = new GUIContent("Base Color");
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private static readonly GUIContent shadowStrengthLabel = new GUIContent("Shadow Strength");
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private static readonly GUIContent surfaceOptionsLabel = new GUIContent("Surface Options");
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private static readonly GUIContent alphaOptionsLabel = new GUIContent("Alpha Options");
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private static readonly string[] surfaceNames = Enum.GetNames(typeof(SurfaceType));
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// Enums
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private enum SurfaceType
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{
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Opaque,
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Transparent
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}
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public override void OnGUI(MaterialEditor materialEditor, MaterialProperty[] properties)
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{
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// Find properties
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colorProp = FindProperty("_Color", properties);
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baseMapProp = FindProperty("_BaseMap", properties);
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shadowStrengthProp = FindProperty("_ShadowStrength", properties);
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alphaClipProp = FindProperty("_AlphaClip", properties);
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cutoffProp = FindProperty("_Cutoff", properties);
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alphaModulateProp = FindProperty("_AlphaModulate", properties);
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surfaceProp = FindProperty("_Surface", properties);
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srcBlendProp = FindProperty("_SrcBlend", properties);
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dstBlendProp = FindProperty("_DstBlend", properties);
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zWriteProp = FindProperty("_ZWrite", properties);
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cullProp = FindProperty("_Cull", properties);
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Material material = materialEditor.target as Material;
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// Draw UI
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EditorGUILayout.Space();
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EditorGUILayout.LabelField(surfaceOptionsLabel, EditorStyles.boldLabel);
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DoSurfaceTypePopup(material);
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materialEditor.ShaderProperty(cullProp, "Cull Mode");
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EditorGUILayout.Space();
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materialEditor.TexturePropertySingleLine(baseMapLabel, baseMapProp, colorProp);
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materialEditor.ShaderProperty(shadowStrengthProp, shadowStrengthLabel);
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EditorGUILayout.Space();
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EditorGUILayout.LabelField(alphaOptionsLabel, EditorStyles.boldLabel);
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materialEditor.ShaderProperty(alphaClipProp, "Alpha Clipping");
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if (material.HasProperty("_AlphaClip") && material.GetFloat("_AlphaClip") > 0)
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{
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materialEditor.ShaderProperty(cutoffProp, "Alpha Cutoff", 1);
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}
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SurfaceType surfaceType = (SurfaceType)material.GetFloat("_Surface");
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if (surfaceType == SurfaceType.Transparent)
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{
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materialEditor.ShaderProperty(alphaModulateProp, "Multiply Color by Alpha");
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}
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EditorGUILayout.Space();
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materialEditor.RenderQueueField();
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materialEditor.EnableInstancingField();
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materialEditor.DoubleSidedGIField();
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}
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private void DoSurfaceTypePopup(Material material)
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{
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EditorGUI.BeginChangeCheck();
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SurfaceType surfaceType = (SurfaceType)material.GetFloat("_Surface");
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var selectedSurfaceType = (SurfaceType)EditorGUILayout.Popup("Surface Type", (int)surfaceType, surfaceNames);
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if (EditorGUI.EndChangeCheck())
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{
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material.SetFloat("_Surface", (float)selectedSurfaceType);
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SetupMaterialBlendMode(material, selectedSurfaceType);
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}
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}
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private void SetupMaterialBlendMode(Material material, SurfaceType surfaceType)
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{
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switch (surfaceType)
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{
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case SurfaceType.Opaque:
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material.SetOverrideTag("RenderType", "Opaque");
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material.SetInt("_SrcBlend", (int)BlendMode.One);
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material.SetInt("_DstBlend", (int)BlendMode.Zero);
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material.SetInt("_ZWrite", 1);
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material.renderQueue = (int)RenderQueue.Geometry;
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material.DisableKeyword("_ALPHAMODULATE_ON");
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break;
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case SurfaceType.Transparent:
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material.SetOverrideTag("RenderType", "Transparent");
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material.SetInt("_SrcBlend", (int)BlendMode.SrcAlpha);
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material.SetInt("_DstBlend", (int)BlendMode.OneMinusSrcAlpha);
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material.SetInt("_ZWrite", 0);
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material.renderQueue = (int)RenderQueue.Transparent;
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break;
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}
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}
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}
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#endif |