bool CreateMultiMaterialDataButton(bool changed)
{
EditorGUI.BeginDisabledGroup(m_Renderer == null);
if (GUILayout.Button("Create From Renderer"))
{
var saveMultiMaterialData = CreateInstance <MultiMaterialData>();
var rendererMaterialArray = new MaterialArray {
materials = m_Renderer.sharedMaterials
};
saveMultiMaterialData.materialArrayData = rendererMaterialArray;
var path = EditorUtility.SaveFilePanelInProject("Multi Material Data Save Window",
m_Renderer.gameObject.name + " Multi Material Data", "asset",
"Enter a file name to save the multi material data to");
if (!string.IsNullOrEmpty(path))
{
AssetDatabase.CreateAsset(saveMultiMaterialData, path);
AssetDatabase.Refresh();
}
var loadMultiMaterialData = AssetDatabase.LoadAssetAtPath <MultiMaterialData>(path);
if (loadMultiMaterialData != null)
{
serializedObject.Update();
var dataProp = serializedObject.FindProperty(MultiMaterial.multiMaterialDataPub);
dataProp.objectReferenceValue = loadMultiMaterialData;
serializedObject.ApplyModifiedProperties();
}
ValidateEditorData();
return(true);
}
EditorGUI.EndDisabledGroup();
return(changed);
}
public static void SetCheckMaterialShaders(MaterialArray materialArray, Material mat)
{
var matSerial = new SerializedObject(mat);
matSerial.Update();
var shaderSerial = matSerial.FindProperty("m_Shader");
matSerial.ApplyModifiedProperties();
foreach (var material in materialArray.materials)
{
if (material == null || material.name == k_DefaultMaterial)
{
continue;
}
var targetMatSerial = new SerializedObject(material);
var targetShader = targetMatSerial.FindProperty("m_Shader");
if (shaderSerial != targetShader)
{
targetMatSerial.Update();
targetShader.objectReferenceValue = shaderSerial.objectReferenceValue;
targetMatSerial.ApplyModifiedProperties();
}
}
}
/// <summary>
/// Checks that the individual Material Editor's material in the 'materialEditors' array matches the material
/// at the corresponding index in the 'materialArray'
/// </summary>
/// <param name="materialEditors">Material Editor Array that will be checked against 'materialArray'</param>
/// <param name="materialArray">Material Array that the 'materialEditors' should match</param>
/// <returns></returns>
public static bool CheckMaterialEditors(MaterialEditor[] materialEditors, MaterialArray materialArray)
{
if (materialEditors == null || materialEditors.Length < 1)
{
return(false);
}
if (materialArray == null || materialArray.materials.Length < 1)
{
return(false);
}
if (materialEditors.Length != materialArray.materials.Length)
{
return(false);
}
for (var i = 0; i < materialArray.materials.Length; i++)
{
if (materialArray.materials[i] == null && materialEditors[i] == null)
{
continue;
}
if (materialArray.materials[i] != null && materialEditors[i] == null ||
materialEditors[i] != null && materialArray.materials[i] == null ||
(Material)materialEditors[i].target != materialArray.materials[i])
{
return(false);
}
}
return(true);
}
public static bool AddSelectedButton(SerializedObject serializedObject, MaterialArray materialArray,
string text, bool includeChildren, bool includeInactive)
{
if (GUILayout.Button(text))
{
serializedObject.Update();
var matHash = new HashSet <Material>();
if (materialArray.materials.Length > 0)
{
foreach (var mat in materialArray.materials)
{
matHash.Add(mat);
}
}
foreach (var obj in Selection.objects)
{
var mat = obj as Material;
if (mat != null)
{
matHash.Add(mat);
}
var go = obj as GameObject;
if (go != null)
{
var meshRenderers = includeChildren? go.GetComponentsInChildren <MeshRenderer>(includeInactive)
: go.GetComponents <MeshRenderer>();
foreach (var meshRenderer in meshRenderers)
{
foreach (var sharedMaterial in meshRenderer.sharedMaterials)
{
matHash.Add(sharedMaterial);
}
}
var skinnedMeshRenderers = includeChildren?
go.GetComponentsInChildren <SkinnedMeshRenderer>(includeInactive)
: go.GetComponents <SkinnedMeshRenderer>();
foreach (var skinnedMeshRenderer in skinnedMeshRenderers)
{
foreach (var sharedMaterial in skinnedMeshRenderer.sharedMaterials)
{
matHash.Add(sharedMaterial);
}
}
}
}
Undo.RecordObject(serializedObject.targetObject, "add selected");
materialArray.materials = matHash.ToArray();
serializedObject.ApplyModifiedProperties();
return(true);
}
return(false);
}
public static bool AddSelectedButtons(SerializedObject serializedObject, MaterialArray materialArray)
{
EditorGUILayout.BeginVertical();
var changed = AddSelectedButton(serializedObject, materialArray, "Add Selected", false, false);
EditorGUILayout.BeginHorizontal();
changed = AddSelectedButton(serializedObject, materialArray, "Include Children", true, false) || changed;
changed = AddSelectedButton(serializedObject, materialArray, "Include Inactive", true, true) || changed;
EditorGUILayout.EndHorizontal();
EditorGUILayout.EndVertical();
return(changed);
}
void ValidateEditorData()
{
if (m_MultiMaterial.multiMaterialData != null && m_MultiMaterialData == null)
{
m_MultiMaterialData = new SerializedObject(m_MultiMaterial.multiMaterialData);
}
if (useRenderer)
{
if (m_Renderer == null)
{
m_Renderer = m_MultiMaterial.GetComponent <Renderer>();
}
m_RendererMaterialArray = m_Renderer != null ?
new MaterialArray {
materials = m_Renderer.sharedMaterials
} : null;
m_MaterialProperties = null;
}
else
{
m_Renderer = null;
m_RendererMaterialArray = null;
}
if (m_Renderer == null)
{
m_Materials = m_MultiMaterialData.FindProperty(string.Format("{0}.{1}",
MultiMaterialData.materialArrayPub, MaterialArray.materialsPub));
var materialPropList = new List <SerializedProperty>();
for (var i = 0; i < m_Materials.arraySize; ++i)
{
materialPropList.Add(m_Materials.GetArrayElementAtIndex(i));
}
m_MaterialProperties = materialPropList.ToArray();
}
}
/// <summary>
/// Popup Shader selector that mimics the material shader popup in the material header
/// </summary>
/// <param name="material">The material that is the parent of the shader for popup.</param>
/// <param name="materialArray">Material array the shader popup operates on.</param>
public static void ShaderPopup(Material material, MaterialArray materialArray)
{
var index = Array.FindIndex(shaderNames, s => s == material.shader.name);
// Have to use our own popup since you cannot use the material editor popup
if (index < 0 || index > shaderNames.Length)
{
UpdateShaderNames(material);
EditorGUILayout.Popup(index, shaderNameGUIContents);
return;
}
index = EditorGUILayout.Popup(index, shaderNameGUIContents);
if (shaderNames[index] != material.shader.name)
{
var matSerial = new SerializedObject(material);
matSerial.Update();
var shaderSerial = matSerial.FindProperty("m_Shader");
shaderSerial.objectReferenceValue = Shader.Find(shaderNames[index]);
matSerial.ApplyModifiedProperties();
MultiMaterialEditorUtilities.SetCheckMaterialShaders(materialArray, material);
}
}
public static void UpdateMaterials(MaterialArray materialArray,
Material controlMaterial, bool syncAll = false)
{
if (materialArray.materials.Length < 1 && controlMaterial == null)
{
return;
}
SetCheckMaterialShaders(materialArray, controlMaterial);
var controlMaterialObject = new SerializedObject(controlMaterial);
SerializedObject checkedMaterialObject = null;
if (!syncAll)
{
Material checkedMaterial = null;
foreach (var material in materialArray.materials)
{
if (material != controlMaterial && material.name != k_DefaultMaterial)
{
checkedMaterial = material;
break;
}
}
if (checkedMaterial == null)
{
return;
}
checkedMaterialObject = new SerializedObject(checkedMaterial);
}
// Find the Property (Properties) that changed in the Material Array
var propertiesToChange = GetPropertiesToChange(controlMaterialObject, checkedMaterialObject, syncAll);
var matHash = new HashSet <Material>(materialArray.materials);
//Convert each material in the hash into a list of serialized accessors.
var matObjs = (from mat in matHash
where mat != null && mat.name != k_DefaultMaterial
select new SerializedObject(mat)).ToList();
if (propertiesToChange != null && propertiesToChange.Count > 0)
{
foreach (var matObj in matObjs)
{
matObj.Update();
}
foreach (var propertyToChange in propertiesToChange)
{
foreach (var matObj in matObjs)
{
var serializedProperty = matObj.FindProperty(propertyToChange.Key);
if (serializedProperty != null)
{
switch (serializedProperty.propertyType)
{
case SerializedPropertyType.AnimationCurve:
serializedProperty.animationCurveValue =
propertyToChange.Value.animationCurveValue;
break;
case SerializedPropertyType.ArraySize:
if (serializedProperty.isArray)
{
serializedProperty.arraySize = propertyToChange.Value.arraySize;
}
break;
case SerializedPropertyType.Boolean:
serializedProperty.boolValue = propertyToChange.Value.boolValue;
break;
case SerializedPropertyType.Bounds:
serializedProperty.boundsValue = propertyToChange.Value.boundsValue;
break;
case SerializedPropertyType.Character:
break;
case SerializedPropertyType.Color:
serializedProperty.colorValue = propertyToChange.Value.colorValue;
break;
case SerializedPropertyType.Enum:
serializedProperty.enumValueIndex = propertyToChange.Value.enumValueIndex;
break;
#if UNITY_2017_1_OR_NEWER
case SerializedPropertyType.ExposedReference:
serializedProperty.exposedReferenceValue =
propertyToChange.Value.exposedReferenceValue;
break;
case SerializedPropertyType.FixedBufferSize:
// SerializedProperty.fixedBufferSize is read only
break;
#endif
case SerializedPropertyType.Generic:
break;
case SerializedPropertyType.Gradient:
break;
case SerializedPropertyType.Float:
serializedProperty.floatValue = propertyToChange.Value.floatValue;
break;
case SerializedPropertyType.Integer:
serializedProperty.intValue = propertyToChange.Value.intValue;
break;
case SerializedPropertyType.String:
serializedProperty.stringValue = propertyToChange.Value.stringValue;
break;
case SerializedPropertyType.Rect:
serializedProperty.rectValue = propertyToChange.Value.rectValue;
break;
case SerializedPropertyType.Quaternion:
serializedProperty.quaternionValue = propertyToChange.Value.quaternionValue;
break;
case SerializedPropertyType.Vector2:
serializedProperty.vector2Value = propertyToChange.Value.vector2Value;
break;
case SerializedPropertyType.Vector3:
serializedProperty.vector3Value = propertyToChange.Value.vector3Value;
break;
case SerializedPropertyType.Vector4:
serializedProperty.vector4Value = propertyToChange.Value.vector4Value;
break;
case SerializedPropertyType.ObjectReference:
serializedProperty.objectReferenceValue =
propertyToChange.Value.objectReferenceValue;
break;
case SerializedPropertyType.LayerMask:
break;
}
}
}
}
foreach (var matObj in matObjs)
{
matObj.ApplyModifiedProperties();
}
}
}
/// <summary>
/// Draw the Multi Material Inspector GUI using Material Editors for each material in Material Array
/// </summary>
/// <param name="serializedObject">Target serialized object from the inspector</param>
/// <param name="materialArray">Material array to be used in inspector</param>
/// <param name="materialEditors">Material Editors for each material in materialArray</param>
/// <param name="changed">Editor property changed from outside of this method</param>
/// <param name="materialProperties">Array of serialized properties that are the materials in the Material
/// Array. Used for property drawer in material header</param>
public static void OnInspectorGUI(SerializedObject serializedObject, MaterialArray materialArray,
ref MaterialEditor[] materialEditors, bool changed = false, SerializedProperty[] materialProperties = null)
{
var materialEditorReady = true;
if (changed || !CheckMaterialEditors(materialEditors, materialArray))
{
materialEditorReady = RebuildMaterialEditors(ref materialEditors, materialArray) &&
Event.current.type == EventType.Layout;
}
if (materialEditorReady)
{
for (var i = 0; i < materialEditors.Length; i++)
{
if (materialArray.materials[i] != null && materialEditors[i] != null)
{
var material = materialEditors[i].target as Material;
OnMiniMaterialArrayHeaderGUI(serializedObject, ref materialEditors[i], materialArray,
materialProperties != null && materialProperties.Length > i &&
materialProperties[i] != null? materialProperties[i] : null);
EditorGUI.BeginDisabledGroup(material != null && material.name == k_DefaultMaterial);
// Draw the Material Editor Body
if (materialEditors[i].isVisible)
{
EditorGUI.BeginChangeCheck();
if (GUILayout.Button("Sync to Material"))
{
MultiMaterialEditorUtilities.UpdateMaterials(materialArray, material, true);
}
materialEditors[i].OnInspectorGUI();
if (EditorGUI.EndChangeCheck())
{
MultiMaterialEditorUtilities.UpdateMaterials(materialArray, material);
}
}
EditorGUI.EndDisabledGroup();
}
else
{
if (materialProperties != null)
{
EditorGUI.BeginChangeCheck();
materialProperties[i].serializedObject.Update();
EditorGUILayout.PropertyField(materialProperties[i], new GUIContent("Material"));
materialProperties[i].serializedObject.ApplyModifiedProperties();
if (EditorGUI.EndChangeCheck())
{
RebuildMaterialEditors(ref materialEditors, materialArray);
}
}
else
{
EditorGUILayout.LabelField(k_NullMaterialWarning, s_RichTextStyle);
}
}
}
}
}
/// <summary>
/// Rebuilds material editor if materials in editor do not match those in the material array
/// </summary>
/// <param name="materialEditors">Material Editors for each material in materialArray</param>
/// <param name="materialArray">Material array to be used in inspector</param>
/// <returns></returns>
public static bool RebuildMaterialEditors(ref MaterialEditor[] materialEditors, MaterialArray materialArray)
{
// If check fails try to rebuild editors then recheck
if (!CheckMaterialEditors(materialEditors, materialArray))
{
if (materialEditors != null)
{
for (var i = 0; i < materialEditors.Length; i++)
{
if (materialEditors[i] == null)
{
continue;
}
UnityObject.DestroyImmediate(materialEditors[i]);
materialEditors[i] = null;
}
}
var rebuildShaders = true;
if (materialArray != null && materialArray.materials != null && materialArray.materials.Length > 0)
{
materialEditors = new MaterialEditor[materialArray.materials.Length];
for (var i = 0; i < materialArray.materials.Length; i++)
{
var material = materialArray.materials[i];
if (material == null)
{
continue;
}
materialEditors[i] = Editor.CreateEditor(material) as MaterialEditor;
if (!rebuildShaders)
{
continue;
}
UpdateShaderNames(material);
rebuildShaders = false;
}
}
else
{
materialEditors = new MaterialEditor[0];
}
// Need to try and recheck after rebuild to avoid change in gui between layout and repaint
return(CheckMaterialEditors(materialEditors, materialArray));
}
return(true);
}
/// <summary>
/// Draws a custom gui that mimics the Material Editor Header.
/// We need to use custom gui since the normal Material Header does not respect all the editor gui functions
/// that can surround it and since we cannot detect changes in the Shader Foldout
/// </summary>
/// <param name="serializedObject">Target serialized object from the inspector</param>
/// <param name="materialEditor">Material Editors for each material in materialArray</param>
/// <param name="materialArray">Material array to be used in inspector</param>
/// <param name="serializedMaterial">Serialized property that represents the material field in the header
/// If null the material name is drawn in place of the field.</param>
public static void OnMiniMaterialArrayHeaderGUI(SerializedObject serializedObject,
ref MaterialEditor materialEditor, MaterialArray materialArray,
SerializedProperty serializedMaterial = null)
{
if (materialEditor == null || !(materialEditor.target is Material))
{
return;
}
EditorGUILayout.BeginHorizontal(EditorStyles.textArea); // Begin Header Area
if (s_Foldout == null || s_FoldoutPreDrop == null)
{
FindMaterialArrayIcons();
}
// Material Editor body is only drawn when 'm_IsVisible' == true
// this is normally set in the Material Editor Inspector's Header with the foldout
// We need to be able to read and write to private field to see the material editor body.
var isVisibleField = typeof(MaterialEditor).GetField("m_IsVisible",
BindingFlags.NonPublic | BindingFlags.Instance);
var isVisibleValue = isVisibleField.GetValue(materialEditor) as bool? ?? false;
if (GUILayout.Button(isVisibleValue? s_Foldout: s_FoldoutPreDrop, GUIStyle.none,
GUILayout.ExpandWidth(false)))
{
isVisibleField.SetValue(materialEditor, !isVisibleValue);
}
var material = (Material)materialEditor.target;
var iconRect = EditorGUILayout.GetControlRect(false, k_IconSize, GUILayout.MaxWidth(k_IconSize));
OnHeaderIconGUI(ref materialEditor, iconRect);
EditorGUILayout.BeginVertical(); // Begin Title and Shader Area
if (serializedMaterial == null)
{
EditorGUILayout.LabelField(new GUIContent(material.name));
}
else
{
serializedMaterial.serializedObject.Update();
EditorGUILayout.PropertyField(serializedMaterial, GUIContent.none);
serializedMaterial.serializedObject.ApplyModifiedProperties();
}
EditorGUI.BeginDisabledGroup(material != null && material.name == k_DefaultMaterial);
ShaderPopup(material, materialArray);
EditorGUI.EndDisabledGroup();
EditorGUILayout.EndVertical(); // End Title and Shader Area
EditorGUILayout.EndHorizontal(); // End Header Area
}
