internal static VisualisationGITexture GetSelectedObjectGITexture(GITextureType textureType)
{
VisualisationGITexture result = default(VisualisationGITexture);
LightmapVisualizationUtility.GetSelectedObjectGITextureInternal(textureType, ref result);
return(result);
}
internal static Hash128 GetSelectedObjectGITextureHash(GITextureType textureType)
{
Hash128 result = default(Hash128);
LightmapVisualizationUtility.GetSelectedObjectGITextureHashInternal(textureType, ref result);
return(result);
}
public LightingWindowObjectTab()
{
GITextureType[] typeArray1 = new GITextureType[7];
typeArray1[1] = GITextureType.Albedo;
typeArray1[2] = GITextureType.Emissive;
typeArray1[3] = GITextureType.Irradiance;
typeArray1[4] = GITextureType.Directionality;
typeArray1[5] = GITextureType.Baked;
typeArray1[6] = GITextureType.BakedDirectional;
this.kObjectPreviewTextureTypes = typeArray1;
this.m_ShowClampedSize = new AnimBool();
}
public LightingWindowObjectTab()
{
GITextureType[] typeArray1 = new GITextureType[7];
typeArray1[1] = GITextureType.Albedo;
typeArray1[2] = GITextureType.Emissive;
typeArray1[3] = GITextureType.Irradiance;
typeArray1[4] = GITextureType.Directionality;
typeArray1[5] = GITextureType.Baked;
typeArray1[6] = GITextureType.BakedDirectional;
this.kObjectPreviewTextureTypes = typeArray1;
this.m_ShowClampedSize = new AnimBool();
}
private bool IsActiveGameObjectInLightmap(GITextureType textureType)
{
if (isRealtimeLightmap)
{
return(m_ActiveGameObjectTextureHash == m_RealtimeTextureHash);
}
if (LightmapVisualizationUtility.IsAtlasTextureType(textureType))
{
return(m_ActiveGameObjectLightmapIndex == m_LightmapIndex);
}
return(m_ActiveGameObjectInstanceId == m_InstanceID);
}
public static void DrawTextureWithUVOverlay(Texture2D texture, GameObject gameObject, Rect drawableArea, Rect position, GITextureType textureType, bool drawSpecularUV)
{
LightmapVisualizationUtility.INTERNAL_CALL_DrawTextureWithUVOverlay(texture, gameObject, ref drawableArea, ref position, textureType, drawSpecularUV);
}
public static extern Texture2D GetGITexture(GITextureType textureType);
public void ObjectPreview(Rect r)
{
if (r.height > 0f)
{
if (this.m_ZoomablePreview == null)
{
this.m_ZoomablePreview = new ZoomableArea(true);
this.m_ZoomablePreview.hRangeMin = 0f;
this.m_ZoomablePreview.vRangeMin = 0f;
this.m_ZoomablePreview.hRangeMax = 1f;
this.m_ZoomablePreview.vRangeMax = 1f;
this.m_ZoomablePreview.SetShownHRange(0f, 1f);
this.m_ZoomablePreview.SetShownVRange(0f, 1f);
this.m_ZoomablePreview.uniformScale = true;
this.m_ZoomablePreview.scaleWithWindow = true;
}
GUI.Box(r, "", "PreBackground");
Rect position = new Rect(r);
position.y += 1f;
position.height = 18f;
GUI.Box(position, "", EditorStyles.toolbar);
Rect position2 = new Rect(r);
position2.y += 1f;
position2.height = 18f;
position2.width = 120f;
Rect rect = new Rect(r);
rect.yMin += position2.height;
rect.yMax -= 14f;
rect.width -= 11f;
int num = Array.IndexOf <GUIContent>(LightingWindowObjectTab.Styles.ObjectPreviewTextureOptions, this.m_SelectedObjectPreviewTexture);
if (num < 0 || !LightmapVisualizationUtility.IsTextureTypeEnabled(this.kObjectPreviewTextureTypes[num]))
{
num = 0;
this.m_SelectedObjectPreviewTexture = LightingWindowObjectTab.Styles.ObjectPreviewTextureOptions[num];
}
if (EditorGUI.DropdownButton(position2, this.m_SelectedObjectPreviewTexture, FocusType.Passive, EditorStyles.toolbarPopup))
{
GenericMenu genericMenu = new GenericMenu();
for (int i = 0; i < LightingWindowObjectTab.Styles.ObjectPreviewTextureOptions.Length; i++)
{
if (LightmapVisualizationUtility.IsTextureTypeEnabled(this.kObjectPreviewTextureTypes[i]))
{
genericMenu.AddItem(LightingWindowObjectTab.Styles.ObjectPreviewTextureOptions[i], num == i, new GenericMenu.MenuFunction2(this.SelectPreviewTextureOption), LightingWindowObjectTab.Styles.ObjectPreviewTextureOptions.ElementAt(i));
}
else
{
genericMenu.AddDisabledItem(LightingWindowObjectTab.Styles.ObjectPreviewTextureOptions.ElementAt(i));
}
}
genericMenu.DropDown(position2);
}
GITextureType gITextureType = this.kObjectPreviewTextureTypes[Array.IndexOf <GUIContent>(LightingWindowObjectTab.Styles.ObjectPreviewTextureOptions, this.m_SelectedObjectPreviewTexture)];
if (this.m_CachedTexture.type != gITextureType || this.m_CachedTexture.contentHash != LightmapVisualizationUtility.GetSelectedObjectGITextureHash(gITextureType) || this.m_CachedTexture.contentHash == default(Hash128))
{
this.m_CachedTexture = LightmapVisualizationUtility.GetSelectedObjectGITexture(gITextureType);
}
if (this.m_CachedTexture.textureAvailability == GITextureAvailability.GITextureNotAvailable || this.m_CachedTexture.textureAvailability == GITextureAvailability.GITextureUnknown)
{
if (LightmapVisualizationUtility.IsBakedTextureType(gITextureType))
{
if (gITextureType == GITextureType.BakedShadowMask)
{
GUI.Label(rect, LightingWindowObjectTab.Styles.TextureNotAvailableBakedShadowmask);
}
else
{
GUI.Label(rect, LightingWindowObjectTab.Styles.TextureNotAvailableBaked);
}
}
else
{
GUI.Label(rect, LightingWindowObjectTab.Styles.TextureNotAvailableRealtime);
}
}
else if (this.m_CachedTexture.textureAvailability == GITextureAvailability.GITextureLoading && this.m_CachedTexture.texture == null)
{
GUI.Label(rect, LightingWindowObjectTab.Styles.TextureLoading);
}
else
{
LightmapType lightmapType = LightmapVisualizationUtility.GetLightmapType(gITextureType);
Event current = Event.current;
EventType type = current.type;
if (type != EventType.ValidateCommand && type != EventType.ExecuteCommand)
{
if (type == EventType.Repaint)
{
Texture2D texture = this.m_CachedTexture.texture;
if (texture && Event.current.type == EventType.Repaint)
{
Rect rect2 = new Rect(0f, 0f, (float)texture.width, (float)texture.height);
rect2 = this.ResizeRectToFit(rect2, rect);
rect2 = this.CenterToRect(rect2, rect);
rect2 = this.ScaleRectByZoomableArea(rect2, this.m_ZoomablePreview);
Rect position3 = new Rect(rect2);
position3.x += 3f;
position3.y += rect.y + 20f;
Rect drawableArea = new Rect(rect);
drawableArea.y += position2.height + 3f;
float num2 = drawableArea.y - 14f;
position3.y -= num2;
drawableArea.y -= num2;
FilterMode filterMode = texture.filterMode;
texture.filterMode = FilterMode.Point;
LightmapVisualizationUtility.DrawTextureWithUVOverlay(texture, Selection.activeGameObject, drawableArea, position3, gITextureType);
texture.filterMode = filterMode;
}
}
}
else if (Event.current.commandName == "FrameSelected")
{
Vector4 lightmapTilingOffset = LightmapVisualizationUtility.GetLightmapTilingOffset(lightmapType);
Vector2 vector = new Vector2(lightmapTilingOffset.z, lightmapTilingOffset.w);
Vector2 lhs = vector + new Vector2(lightmapTilingOffset.x, lightmapTilingOffset.y);
vector = Vector2.Max(vector, Vector2.zero);
lhs = Vector2.Min(lhs, Vector2.one);
float y = 1f - vector.y;
vector.y = 1f - lhs.y;
lhs.y = y;
Rect shownArea = new Rect(vector.x, vector.y, lhs.x - vector.x, lhs.y - vector.y);
shownArea.x -= Mathf.Clamp(shownArea.height - shownArea.width, 0f, 3.40282347E+38f) / 2f;
shownArea.y -= Mathf.Clamp(shownArea.width - shownArea.height, 0f, 3.40282347E+38f) / 2f;
float num3 = Mathf.Max(shownArea.width, shownArea.height);
shownArea.height = num3;
shownArea.width = num3;
this.m_ZoomablePreview.shownArea = shownArea;
Event.current.Use();
}
if (this.m_PreviousSelection != Selection.activeInstanceID)
{
this.m_PreviousSelection = Selection.activeInstanceID;
this.m_ZoomablePreview.SetShownHRange(0f, 1f);
this.m_ZoomablePreview.SetShownVRange(0f, 1f);
}
Rect rect3 = new Rect(r);
rect3.yMin += position2.height;
this.m_ZoomablePreview.rect = rect3;
this.m_ZoomablePreview.BeginViewGUI();
this.m_ZoomablePreview.EndViewGUI();
GUILayoutUtility.GetRect(r.width, r.height);
}
}
}
private static extern void INTERNAL_CALL_DrawTextureWithUVOverlay(Texture2D texture, GameObject gameObject, ref Rect drawableArea, ref Rect position, GITextureType textureType, bool drawSpecularUV);
public static extern bool IsBakedTextureType(GITextureType textureType);
public void ObjectPreview(Rect r)
{
if (r.height > 0f)
{
if (s_Styles == null)
{
s_Styles = new Styles();
}
List <Texture2D> list = new List <Texture2D>();
foreach (GITextureType type in this.kObjectPreviewTextureTypes)
{
list.Add(LightmapVisualizationUtility.GetGITexture(type));
}
if (list.Count != 0)
{
Rect rect3;
Rect rect9;
if (this.m_ZoomablePreview == null)
{
this.m_ZoomablePreview = new ZoomableArea(true);
this.m_ZoomablePreview.hRangeMin = 0f;
this.m_ZoomablePreview.vRangeMin = 0f;
this.m_ZoomablePreview.hRangeMax = 1f;
this.m_ZoomablePreview.vRangeMax = 1f;
this.m_ZoomablePreview.SetShownHRange(0f, 1f);
this.m_ZoomablePreview.SetShownVRange(0f, 1f);
this.m_ZoomablePreview.uniformScale = true;
this.m_ZoomablePreview.scaleWithWindow = true;
}
GUI.Box(r, string.Empty, "PreBackground");
Rect position = new Rect(r);
position.y++;
position.height = 18f;
GUI.Box(position, string.Empty, EditorStyles.toolbar);
Rect rect2 = new Rect(r);
rect2.y++;
rect2.height = 18f;
rect2.width = 120f;
rect3 = new Rect(r)
{
yMin = rect3.yMin + rect2.height,
yMax = rect3.yMax - 14f,
width = rect3.width - 11f
};
int index = Array.IndexOf <GUIContent>(kObjectPreviewTextureOptions, this.m_SelectedObjectPreviewTexture);
if (index < 0)
{
index = 0;
}
index = EditorGUI.Popup(rect2, index, kObjectPreviewTextureOptions, EditorStyles.toolbarPopup);
if (index >= kObjectPreviewTextureOptions.Length)
{
index = 0;
}
this.m_SelectedObjectPreviewTexture = kObjectPreviewTextureOptions[index];
LightmapType lightmapType = ((this.kObjectPreviewTextureTypes[index] != GITextureType.Baked) && (this.kObjectPreviewTextureTypes[index] != GITextureType.BakedDirectional)) ? LightmapType.DynamicLightmap : LightmapType.StaticLightmap;
SerializedProperty property = new SerializedObject(LightmapEditorSettings.GetLightmapSettings()).FindProperty("m_LightmapsMode");
bool flag = ((this.kObjectPreviewTextureTypes[index] == GITextureType.Baked) || (this.kObjectPreviewTextureTypes[index] == GITextureType.BakedDirectional)) && (property.intValue == 2);
if (flag)
{
GUIContent content = GUIContent.Temp("Indirect");
Rect rect4 = rect2;
rect4.x += rect2.width;
rect4.width = EditorStyles.toolbarButton.CalcSize(content).x;
this.m_HasSeparateIndirectUV = GUI.Toggle(rect4, this.m_HasSeparateIndirectUV, content.text, EditorStyles.toolbarButton);
}
switch (Event.current.type)
{
case EventType.ValidateCommand:
case EventType.ExecuteCommand:
if (Event.current.commandName == "FrameSelected")
{
Rect rect5;
Vector4 lightmapTilingOffset = LightmapVisualizationUtility.GetLightmapTilingOffset(lightmapType);
Vector2 lhs = new Vector2(lightmapTilingOffset.z, lightmapTilingOffset.w);
Vector2 vector3 = lhs + new Vector2(lightmapTilingOffset.x, lightmapTilingOffset.y);
lhs = Vector2.Max(lhs, Vector2.zero);
vector3 = Vector2.Min(vector3, Vector2.one);
float num3 = 1f - lhs.y;
lhs.y = 1f - vector3.y;
vector3.y = num3;
rect5 = new Rect(lhs.x, lhs.y, vector3.x - lhs.x, vector3.y - lhs.y)
{
x = rect5.x - (Mathf.Clamp(rect5.height - rect5.width, 0f, float.MaxValue) / 2f),
y = rect5.y - (Mathf.Clamp(rect5.width - rect5.height, 0f, float.MaxValue) / 2f)
};
float num5 = Mathf.Max(rect5.width, rect5.height);
rect5.height = num5;
rect5.width = num5;
if (flag && this.m_HasSeparateIndirectUV)
{
rect5.x += 0.5f;
}
this.m_ZoomablePreview.shownArea = rect5;
Event.current.Use();
}
break;
case EventType.Repaint:
{
Texture2D texture = list[index];
if ((texture != null) && (Event.current.type == EventType.Repaint))
{
Rect rect7;
Rect rect8;
Rect rect = new Rect(0f, 0f, (float)texture.width, (float)texture.height);
rect = this.ResizeRectToFit(rect, rect3);
rect = this.CenterToRect(rect, rect3);
rect = this.ScaleRectByZoomableArea(rect, this.m_ZoomablePreview);
rect7 = new Rect(rect)
{
x = rect7.x + 3f,
y = rect7.y + (rect3.y + 20f)
};
rect8 = new Rect(rect3)
{
y = rect8.y + (rect2.height + 3f)
};
float num4 = rect8.y - 14f;
rect7.y -= num4;
rect8.y -= num4;
UnityEngine.FilterMode filterMode = texture.filterMode;
texture.filterMode = UnityEngine.FilterMode.Point;
GITextureType textureType = this.kObjectPreviewTextureTypes[index];
bool drawSpecularUV = flag && this.m_HasSeparateIndirectUV;
LightmapVisualizationUtility.DrawTextureWithUVOverlay(texture, Selection.activeGameObject, rect8, rect7, textureType, drawSpecularUV);
texture.filterMode = filterMode;
}
break;
}
}
if (this.m_PreviousSelection != Selection.activeInstanceID)
{
this.m_PreviousSelection = Selection.activeInstanceID;
this.m_ZoomablePreview.SetShownHRange(0f, 1f);
this.m_ZoomablePreview.SetShownVRange(0f, 1f);
}
rect9 = new Rect(r)
{
yMin = rect9.yMin + rect2.height
};
this.m_ZoomablePreview.rect = rect9;
this.m_ZoomablePreview.BeginViewGUI();
this.m_ZoomablePreview.EndViewGUI();
GUILayoutUtility.GetRect(r.width, r.height);
}
}
}
public static extern LightmapType GetLightmapType(GITextureType textureType);
private static void GetSelectedObjectGITextureHashInternal(GITextureType textureType, ref Hash128 result)
{
LightmapVisualizationUtility.INTERNAL_CALL_GetSelectedObjectGITextureHashInternal(textureType, ref result);
}
private static extern void INTERNAL_CALL_GetSelectedObjectGITextureHashInternal(GITextureType textureType, ref Hash128 result);
public void ObjectPreview(Rect r)
{
if (r.height <= 0f)
{
return;
}
if (LightingWindowObjectTab.s_Styles == null)
{
LightingWindowObjectTab.s_Styles = new LightingWindowObjectTab.Styles();
}
List <Texture2D> list = new List <Texture2D>();
GITextureType[] array = this.kObjectPreviewTextureTypes;
for (int i = 0; i < array.Length; i++)
{
GITextureType textureType = array[i];
list.Add(LightmapVisualizationUtility.GetGITexture(textureType));
}
if (list.Count == 0)
{
return;
}
if (this.m_ZoomablePreview == null)
{
this.m_ZoomablePreview = new ZoomableArea(true);
this.m_ZoomablePreview.hRangeMin = 0f;
this.m_ZoomablePreview.vRangeMin = 0f;
this.m_ZoomablePreview.hRangeMax = 1f;
this.m_ZoomablePreview.vRangeMax = 1f;
this.m_ZoomablePreview.SetShownHRange(0f, 1f);
this.m_ZoomablePreview.SetShownVRange(0f, 1f);
this.m_ZoomablePreview.uniformScale = true;
this.m_ZoomablePreview.scaleWithWindow = true;
}
GUI.Box(r, string.Empty, "PreBackground");
Rect position = new Rect(r);
position.y += 1f;
position.height = 18f;
GUI.Box(position, string.Empty, EditorStyles.toolbar);
Rect rect = new Rect(r);
rect.y += 1f;
rect.height = 18f;
rect.width = 120f;
Rect rect2 = new Rect(r);
rect2.yMin += rect.height;
rect2.yMax -= 14f;
rect2.width -= 11f;
int num = Array.IndexOf <GUIContent>(LightingWindowObjectTab.kObjectPreviewTextureOptions, this.m_SelectedObjectPreviewTexture);
if (num < 0)
{
num = 0;
}
num = EditorGUI.Popup(rect, num, LightingWindowObjectTab.kObjectPreviewTextureOptions, EditorStyles.toolbarPopup);
if (num >= LightingWindowObjectTab.kObjectPreviewTextureOptions.Length)
{
num = 0;
}
this.m_SelectedObjectPreviewTexture = LightingWindowObjectTab.kObjectPreviewTextureOptions[num];
LightmapType lightmapType = (this.kObjectPreviewTextureTypes[num] != GITextureType.Baked && this.kObjectPreviewTextureTypes[num] != GITextureType.BakedDirectional) ? LightmapType.DynamicLightmap : LightmapType.StaticLightmap;
SerializedObject serializedObject = new SerializedObject(LightmapEditorSettings.GetLightmapSettings());
SerializedProperty serializedProperty = serializedObject.FindProperty("m_LightmapsMode");
bool flag = (this.kObjectPreviewTextureTypes[num] == GITextureType.Baked || this.kObjectPreviewTextureTypes[num] == GITextureType.BakedDirectional) && serializedProperty.intValue == 2;
if (flag)
{
GUIContent gUIContent = GUIContent.Temp("Indirect");
Rect position2 = rect;
position2.x += rect.width;
position2.width = EditorStyles.toolbarButton.CalcSize(gUIContent).x;
this.m_HasSeparateIndirectUV = GUI.Toggle(position2, this.m_HasSeparateIndirectUV, gUIContent.text, EditorStyles.toolbarButton);
}
Event current = Event.current;
EventType type = current.type;
if (type != EventType.ValidateCommand && type != EventType.ExecuteCommand)
{
if (type == EventType.Repaint)
{
Texture2D texture2D = list[num];
if (texture2D && Event.current.type == EventType.Repaint)
{
Rect rect3 = new Rect(0f, 0f, (float)texture2D.width, (float)texture2D.height);
rect3 = this.ResizeRectToFit(rect3, rect2);
rect3 = this.CenterToRect(rect3, rect2);
rect3 = this.ScaleRectByZoomableArea(rect3, this.m_ZoomablePreview);
Rect position3 = new Rect(rect3);
position3.x += 3f;
position3.y += rect2.y + 20f;
Rect drawableArea = new Rect(rect2);
drawableArea.y += rect.height + 3f;
float num2 = drawableArea.y - 14f;
position3.y -= num2;
drawableArea.y -= num2;
texture2D.filterMode = FilterMode.Point;
GITextureType textureType2 = this.kObjectPreviewTextureTypes[num];
bool drawSpecularUV = flag && this.m_HasSeparateIndirectUV;
LightmapVisualizationUtility.DrawTextureWithUVOverlay(texture2D, Selection.activeGameObject, drawableArea, position3, textureType2, drawSpecularUV);
}
}
}
else
{
if (Event.current.commandName == "FrameSelected")
{
Vector4 lightmapTilingOffset = LightmapVisualizationUtility.GetLightmapTilingOffset(lightmapType);
Vector2 vector = new Vector2(lightmapTilingOffset.z, lightmapTilingOffset.w);
Vector2 lhs = vector + new Vector2(lightmapTilingOffset.x, lightmapTilingOffset.y);
vector = Vector2.Max(vector, Vector2.zero);
lhs = Vector2.Min(lhs, Vector2.one);
float y = 1f - vector.y;
vector.y = 1f - lhs.y;
lhs.y = y;
Rect shownArea = new Rect(vector.x, vector.y, lhs.x - vector.x, lhs.y - vector.y);
shownArea.x -= Mathf.Clamp(shownArea.height - shownArea.width, 0f, 3.40282347E+38f) / 2f;
shownArea.y -= Mathf.Clamp(shownArea.width - shownArea.height, 0f, 3.40282347E+38f) / 2f;
float num3 = Mathf.Max(shownArea.width, shownArea.height);
shownArea.height = num3;
shownArea.width = num3;
if (flag && this.m_HasSeparateIndirectUV)
{
shownArea.x += 0.5f;
}
this.m_ZoomablePreview.shownArea = shownArea;
Event.current.Use();
}
}
if (this.m_PreviousSelection != Selection.activeInstanceID)
{
this.m_PreviousSelection = Selection.activeInstanceID;
this.m_ZoomablePreview.SetShownHRange(0f, 1f);
this.m_ZoomablePreview.SetShownVRange(0f, 1f);
}
Rect rect4 = new Rect(r);
rect4.yMin += rect.height;
this.m_ZoomablePreview.rect = rect4;
this.m_ZoomablePreview.BeginViewGUI();
this.m_ZoomablePreview.EndViewGUI();
GUILayoutUtility.GetRect(r.width, r.height);
}
private static extern void INTERNAL_CALL_GetSelectedObjectGITextureInternal(GITextureType textureType, ref VisualisationGITexture result);
public void ObjectPreview(Rect r)
{
if (r.height > 0f)
{
List <Texture2D> list = new List <Texture2D>();
GITextureType[] array = this.kObjectPreviewTextureTypes;
for (int i = 0; i < array.Length; i++)
{
GITextureType textureType = array[i];
list.Add(LightmapVisualizationUtility.GetGITexture(textureType));
}
if (list.Count != 0)
{
if (this.m_ZoomablePreview == null)
{
this.m_ZoomablePreview = new ZoomableArea(true);
this.m_ZoomablePreview.hRangeMin = 0f;
this.m_ZoomablePreview.vRangeMin = 0f;
this.m_ZoomablePreview.hRangeMax = 1f;
this.m_ZoomablePreview.vRangeMax = 1f;
this.m_ZoomablePreview.SetShownHRange(0f, 1f);
this.m_ZoomablePreview.SetShownVRange(0f, 1f);
this.m_ZoomablePreview.uniformScale = true;
this.m_ZoomablePreview.scaleWithWindow = true;
}
GUI.Box(r, "", "PreBackground");
Rect position = new Rect(r);
position.y += 1f;
position.height = 18f;
GUI.Box(position, "", EditorStyles.toolbar);
Rect position2 = new Rect(r);
position2.y += 1f;
position2.height = 18f;
position2.width = 120f;
Rect rect = new Rect(r);
rect.yMin += position2.height;
rect.yMax -= 14f;
rect.width -= 11f;
int num = Array.IndexOf <GUIContent>(LightingWindowObjectTab.kObjectPreviewTextureOptions, this.m_SelectedObjectPreviewTexture);
if (num < 0)
{
num = 0;
}
num = EditorGUI.Popup(position2, num, LightingWindowObjectTab.kObjectPreviewTextureOptions, EditorStyles.toolbarPopup);
if (num >= LightingWindowObjectTab.kObjectPreviewTextureOptions.Length)
{
num = 0;
}
this.m_SelectedObjectPreviewTexture = LightingWindowObjectTab.kObjectPreviewTextureOptions[num];
LightmapType lightmapType = (this.kObjectPreviewTextureTypes[num] != GITextureType.BakedShadowMask && this.kObjectPreviewTextureTypes[num] != GITextureType.Baked && this.kObjectPreviewTextureTypes[num] != GITextureType.BakedDirectional && this.kObjectPreviewTextureTypes[num] != GITextureType.BakedCharting) ? LightmapType.DynamicLightmap : LightmapType.StaticLightmap;
Event current = Event.current;
EventType type = current.type;
if (type != EventType.ValidateCommand && type != EventType.ExecuteCommand)
{
if (type == EventType.Repaint)
{
Texture2D texture2D = list[num];
if (texture2D && Event.current.type == EventType.Repaint)
{
Rect rect2 = new Rect(0f, 0f, (float)texture2D.width, (float)texture2D.height);
rect2 = this.ResizeRectToFit(rect2, rect);
rect2 = this.CenterToRect(rect2, rect);
rect2 = this.ScaleRectByZoomableArea(rect2, this.m_ZoomablePreview);
Rect position3 = new Rect(rect2);
position3.x += 3f;
position3.y += rect.y + 20f;
Rect drawableArea = new Rect(rect);
drawableArea.y += position2.height + 3f;
float num2 = drawableArea.y - 14f;
position3.y -= num2;
drawableArea.y -= num2;
FilterMode filterMode = texture2D.filterMode;
texture2D.filterMode = FilterMode.Point;
GITextureType textureType2 = this.kObjectPreviewTextureTypes[num];
LightmapVisualizationUtility.DrawTextureWithUVOverlay(texture2D, Selection.activeGameObject, drawableArea, position3, textureType2);
texture2D.filterMode = filterMode;
}
}
}
else if (Event.current.commandName == "FrameSelected")
{
Vector4 lightmapTilingOffset = LightmapVisualizationUtility.GetLightmapTilingOffset(lightmapType);
Vector2 vector = new Vector2(lightmapTilingOffset.z, lightmapTilingOffset.w);
Vector2 lhs = vector + new Vector2(lightmapTilingOffset.x, lightmapTilingOffset.y);
vector = Vector2.Max(vector, Vector2.zero);
lhs = Vector2.Min(lhs, Vector2.one);
float y = 1f - vector.y;
vector.y = 1f - lhs.y;
lhs.y = y;
Rect shownArea = new Rect(vector.x, vector.y, lhs.x - vector.x, lhs.y - vector.y);
shownArea.x -= Mathf.Clamp(shownArea.height - shownArea.width, 0f, 3.40282347E+38f) / 2f;
shownArea.y -= Mathf.Clamp(shownArea.width - shownArea.height, 0f, 3.40282347E+38f) / 2f;
float num3 = Mathf.Max(shownArea.width, shownArea.height);
shownArea.height = num3;
shownArea.width = num3;
this.m_ZoomablePreview.shownArea = shownArea;
Event.current.Use();
}
if (this.m_PreviousSelection != Selection.activeInstanceID)
{
this.m_PreviousSelection = Selection.activeInstanceID;
this.m_ZoomablePreview.SetShownHRange(0f, 1f);
this.m_ZoomablePreview.SetShownVRange(0f, 1f);
}
Rect rect3 = new Rect(r);
rect3.yMin += position2.height;
this.m_ZoomablePreview.rect = rect3;
this.m_ZoomablePreview.BeginViewGUI();
this.m_ZoomablePreview.EndViewGUI();
GUILayoutUtility.GetRect(r.width, r.height);
}
}
}
private static extern void INTERNAL_CALL_DrawTextureWithUVOverlay(Texture2D texture, GameObject gameObject, ref Rect drawableArea, ref Rect position, GITextureType textureType, bool drawSpecularUV);
public void ObjectPreview(Rect r)
{
if ((double)r.height <= 0.0)
{
return;
}
if (LightingWindowObjectTab.s_Styles == null)
{
LightingWindowObjectTab.s_Styles = new LightingWindowObjectTab.Styles();
}
List <Texture2D> texture2DList = new List <Texture2D>();
foreach (GITextureType previewTextureType in this.kObjectPreviewTextureTypes)
{
texture2DList.Add(LightmapVisualizationUtility.GetGITexture(previewTextureType));
}
if (texture2DList.Count == 0)
{
return;
}
if (this.m_ZoomablePreview == null)
{
this.m_ZoomablePreview = new ZoomableArea(true);
this.m_ZoomablePreview.hRangeMin = 0.0f;
this.m_ZoomablePreview.vRangeMin = 0.0f;
this.m_ZoomablePreview.hRangeMax = 1f;
this.m_ZoomablePreview.vRangeMax = 1f;
this.m_ZoomablePreview.SetShownHRange(0.0f, 1f);
this.m_ZoomablePreview.SetShownVRange(0.0f, 1f);
this.m_ZoomablePreview.uniformScale = true;
this.m_ZoomablePreview.scaleWithWindow = true;
}
GUI.Box(r, string.Empty, (GUIStyle)"PreBackground");
Rect position1 = new Rect(r);
++position1.y;
position1.height = 18f;
GUI.Box(position1, string.Empty, EditorStyles.toolbar);
Rect position2 = new Rect(r);
++position2.y;
position2.height = 18f;
position2.width = 120f;
Rect rect1 = new Rect(r);
rect1.yMin += position2.height;
rect1.yMax -= 14f;
rect1.width -= 11f;
int selectedIndex = Array.IndexOf <GUIContent>(LightingWindowObjectTab.kObjectPreviewTextureOptions, this.m_SelectedObjectPreviewTexture);
if (selectedIndex < 0)
{
selectedIndex = 0;
}
int index = EditorGUI.Popup(position2, selectedIndex, LightingWindowObjectTab.kObjectPreviewTextureOptions, EditorStyles.toolbarPopup);
if (index >= LightingWindowObjectTab.kObjectPreviewTextureOptions.Length)
{
index = 0;
}
this.m_SelectedObjectPreviewTexture = LightingWindowObjectTab.kObjectPreviewTextureOptions[index];
LightmapType lightmapType = this.kObjectPreviewTextureTypes[index] == GITextureType.Baked || this.kObjectPreviewTextureTypes[index] == GITextureType.BakedDirectional ? LightmapType.StaticLightmap : LightmapType.DynamicLightmap;
SerializedProperty property = new SerializedObject(LightmapEditorSettings.GetLightmapSettings()).FindProperty("m_LightmapsMode");
bool flag = (this.kObjectPreviewTextureTypes[index] == GITextureType.Baked || this.kObjectPreviewTextureTypes[index] == GITextureType.BakedDirectional) && property.intValue == 2;
if (flag)
{
GUIContent content = GUIContent.Temp("Indirect");
Rect position3 = position2;
position3.x += position2.width;
position3.width = EditorStyles.toolbarButton.CalcSize(content).x;
this.m_HasSeparateIndirectUV = GUI.Toggle(position3, this.m_HasSeparateIndirectUV, content.text, EditorStyles.toolbarButton);
}
switch (Event.current.type)
{
case EventType.ValidateCommand:
case EventType.ExecuteCommand:
if (Event.current.commandName == "FrameSelected")
{
Vector4 lightmapTilingOffset = LightmapVisualizationUtility.GetLightmapTilingOffset(lightmapType);
Vector2 lhs1 = new Vector2(lightmapTilingOffset.z, lightmapTilingOffset.w);
Vector2 lhs2 = lhs1 + new Vector2(lightmapTilingOffset.x, lightmapTilingOffset.y);
lhs1 = Vector2.Max(lhs1, Vector2.zero);
Vector2 vector2 = Vector2.Min(lhs2, Vector2.one);
float num1 = 1f - lhs1.y;
lhs1.y = 1f - vector2.y;
vector2.y = num1;
Rect rect2 = new Rect(lhs1.x, lhs1.y, vector2.x - lhs1.x, vector2.y - lhs1.y);
rect2.x -= Mathf.Clamp(rect2.height - rect2.width, 0.0f, float.MaxValue) / 2f;
rect2.y -= Mathf.Clamp(rect2.width - rect2.height, 0.0f, float.MaxValue) / 2f;
// ISSUE: explicit reference operation
// ISSUE: variable of a reference type
Rect& local = @rect2;
float num2 = Mathf.Max(rect2.width, rect2.height);
rect2.height = num2;
double num3 = (double)num2;
// ISSUE: explicit reference operation
(^ local).width = (float)num3;
if (flag && this.m_HasSeparateIndirectUV)
{
rect2.x += 0.5f;
}
this.m_ZoomablePreview.shownArea = rect2;
Event.current.Use();
break;
}
break;
case EventType.Repaint:
Texture2D texture = texture2DList[index];
if ((bool)((UnityEngine.Object)texture) && Event.current.type == EventType.Repaint)
{
Rect position3 = new Rect(this.ScaleRectByZoomableArea(this.CenterToRect(this.ResizeRectToFit(new Rect(0.0f, 0.0f, (float)texture.width, (float)texture.height), rect1), rect1), this.m_ZoomablePreview));
position3.x += 3f;
position3.y += rect1.y + 20f;
Rect drawableArea = new Rect(rect1);
drawableArea.y += position2.height + 3f;
float num = drawableArea.y - 14f;
position3.y -= num;
drawableArea.y -= num;
UnityEngine.FilterMode filterMode = texture.filterMode;
texture.filterMode = UnityEngine.FilterMode.Point;
GITextureType previewTextureType = this.kObjectPreviewTextureTypes[index];
bool drawSpecularUV = flag && this.m_HasSeparateIndirectUV;
LightmapVisualizationUtility.DrawTextureWithUVOverlay(texture, Selection.activeGameObject, drawableArea, position3, previewTextureType, drawSpecularUV);
texture.filterMode = filterMode;
break;
}
break;
}
if (this.m_PreviousSelection != Selection.activeInstanceID)
{
this.m_PreviousSelection = Selection.activeInstanceID;
this.m_ZoomablePreview.SetShownHRange(0.0f, 1f);
this.m_ZoomablePreview.SetShownVRange(0.0f, 1f);
}
Rect rect3 = new Rect(r);
rect3.yMin += position2.height;
this.m_ZoomablePreview.rect = rect3;
this.m_ZoomablePreview.BeginViewGUI();
this.m_ZoomablePreview.EndViewGUI();
GUILayoutUtility.GetRect(r.width, r.height);
}
private void DrawPreview(Rect r)
{
if (r.height <= 0)
{
return;
}
if (m_ZoomablePreview == null)
{
m_ZoomablePreview = new ZoomableArea(true);
m_ZoomablePreview.hRangeMin = 0.0f;
m_ZoomablePreview.vRangeMin = 0.0f;
m_ZoomablePreview.hRangeMax = 1.0f;
m_ZoomablePreview.vRangeMax = 1.0f;
m_ZoomablePreview.SetShownHRange(0, 1);
m_ZoomablePreview.SetShownVRange(0, 1);
m_ZoomablePreview.uniformScale = true;
m_ZoomablePreview.scaleWithWindow = true;
}
m_ZoomablePreview.rect = r;
m_ZoomablePreview.BeginViewGUI();
m_ZoomablePreview.hSlider = m_ZoomablePreview.shownArea.width < 1;
m_ZoomablePreview.vSlider = m_ZoomablePreview.shownArea.height < 1;
Rect drawableArea = m_ZoomablePreview.drawRect;
GITextureType textureType = GetSelectedTextureType();
UpdateCachedTexture(textureType);
if (m_CachedTexture.textureAvailability == GITextureAvailability.GITextureNotAvailable || m_CachedTexture.textureAvailability == GITextureAvailability.GITextureUnknown)
{
if (!isRealtimeLightmap)
{
if (!LightmapVisualizationUtility.IsAtlasTextureType(textureType) && isIndexBased)
{
GUI.Label(drawableArea, Styles.TextureNotAvailableBakedAlbedoEmissive, Styles.PreviewLabel);
}
else if (textureType == GITextureType.BakedShadowMask)
{
GUI.Label(drawableArea, Styles.TextureNotAvailableBakedShadowmask, Styles.PreviewLabel);
}
else
{
GUI.Label(drawableArea, Styles.TextureNotAvailableBaked, Styles.PreviewLabel);
}
}
else
{
GUI.Label(drawableArea, Styles.TextureNotAvailableRealtime, Styles.PreviewLabel);
}
return;
}
if (m_CachedTexture.textureAvailability == GITextureAvailability.GITextureLoading && m_CachedTexture.texture == null)
{
GUI.Label(drawableArea, Styles.TextureLoading, Styles.PreviewLabel);
return;
}
LightmapType lightmapType = LightmapVisualizationUtility.GetLightmapType(textureType);
switch (Event.current.type)
{
// 'F' will zoom to uv bounds
case EventType.ValidateCommand:
case EventType.ExecuteCommand:
if (Event.current.commandName == EventCommandNames.FrameSelected && IsActiveGameObjectInLightmap(textureType))
{
// There are instance based baked textures where we don't get any STs and can't do the framing
if (!isRealtimeLightmap && !LightmapVisualizationUtility.IsAtlasTextureType(textureType))
{
break;
}
Vector4 lightmapTilingOffset = LightmapVisualizationUtility.GetLightmapTilingOffset(lightmapType);
Vector2 min = new Vector2(lightmapTilingOffset.z, lightmapTilingOffset.w);
Vector2 max = min + new Vector2(lightmapTilingOffset.x, lightmapTilingOffset.y);
min = Vector2.Max(min, Vector2.zero);
max = Vector2.Min(max, Vector2.one);
Texture2D texture = m_CachedTexture.texture;
Rect textureRect = new Rect(r.x, r.y, texture.width, texture.height);
textureRect = ResizeRectToFit(textureRect, drawableArea);
float offsetX = 0.0f, offsetY = 0.0f;
if (textureRect.height == drawableArea.height)
{
offsetX = (drawableArea.width - textureRect.width) / drawableArea.width;
}
else
{
offsetY = (drawableArea.height - textureRect.height) / drawableArea.height;
}
// Make sure that the focus rectangle is a even square
Rect rect = new Rect(min.x, min.y, max.x - min.x, max.y - min.y);
rect.width = rect.height = Mathf.Max(rect.width, rect.height);
rect.x -= (offsetX * min.x);
rect.y += (offsetY * (1 - max.y));
m_ZoomablePreview.shownArea = rect;
Event.current.Use();
}
break;
// Scale and draw texture and uv's
case EventType.Repaint:
{
Texture2D texture = m_CachedTexture.texture;
if (texture)
{
Rect textureRect = new Rect(r.x, r.y, texture.width, texture.height);
textureRect = ResizeRectToFit(textureRect, drawableArea);
textureRect = ScaleRectByZoomableArea(textureRect, m_ZoomablePreview);
const int padding = 5;
textureRect.x += padding;
textureRect.width -= padding * 2;
textureRect.height -= padding;
// Texture shouldn't be filtered since it will make previewing really blurry
FilterMode prevMode = texture.filterMode;
texture.filterMode = FilterMode.Point;
LightmapVisualizationUtility.DrawTextureWithUVOverlay(texture,
(m_ShowUVOverlay && IsActiveGameObjectInLightmap(textureType)) ? Selection.activeGameObject : null,
m_ShowUVOverlay ? m_CachedTextureObjects : new GameObject[] {}, drawableArea, textureRect, textureType, exposure);
texture.filterMode = prevMode;
}
}
break;
}
m_ZoomablePreview.EndViewGUI();
}
public static extern Texture2D GetGITexture(GITextureType textureType);
private void UpdateCachedTexture(GITextureType textureType)
{
if (isIndexBased)
{
if (isRealtimeLightmap)
{
Hash128[] mainHashes = Lightmapping.GetMainSystemHashes();
if (!m_RealtimeTextureHash.isValid || !mainHashes.Contains(m_RealtimeTextureHash))
{
m_RealtimeTextureHash = mainHashes.ElementAtOrDefault(m_LightmapIndex);
}
}
}
else // instance based
{
if (isRealtimeLightmap)
{
Hash128 systemHash;
if (!Lightmapping.GetInputSystemHash(m_InstanceID, out systemHash))
{
m_CachedTexture.textureAvailability = GITextureAvailability.GITextureNotAvailable;
return;
}
m_RealtimeTextureHash = systemHash;
}
else
{
int lightmapIndex;
if (!Lightmapping.GetLightmapIndex(m_InstanceID, out lightmapIndex))
{
m_CachedTexture.textureAvailability = GITextureAvailability.GITextureNotAvailable;
return;
}
m_LightmapIndex = lightmapIndex;
}
}
Hash128 contentHash = isRealtimeLightmap ? LightmapVisualizationUtility.GetRealtimeGITextureHash(m_RealtimeTextureHash, textureType) :
LightmapVisualizationUtility.GetBakedGITextureHash(m_LightmapIndex, m_InstanceID, textureType);
// if we need to fetch a new texture
if (m_CachedTexture.texture == null || m_CachedTexture.type != textureType || m_CachedTexture.contentHash != contentHash || m_CachedTexture.contentHash == new Hash128())
{
m_CachedTexture = isRealtimeLightmap ?
LightmapVisualizationUtility.GetRealtimeGITexture(m_RealtimeTextureHash, textureType) :
LightmapVisualizationUtility.GetBakedGITexture(m_LightmapIndex, m_InstanceID, textureType);
}
if (!m_ShowUVOverlay)
{
return; // if we don't wanna show any overlay
}
if (m_CachedTexture.texture == null || m_CachedTexture.textureAvailability == GITextureAvailability.GITextureNotAvailable || m_CachedTexture.textureAvailability == GITextureAvailability.GITextureUnknown)
{
return; // if we dont have a texture
}
// fetch Renderers
if (isRealtimeLightmap)
{
m_CachedTextureObjects = LightmapVisualizationUtility.GetRealtimeGITextureRenderers(m_RealtimeTextureHash);
}
else if (LightmapVisualizationUtility.IsAtlasTextureType(textureType))
{
m_CachedTextureObjects = LightmapVisualizationUtility.GetBakedGITextureRenderers(m_LightmapIndex);
}
else // if it's an instance based baked lightmap, we only have 1 object in it
{
m_CachedTextureObjects = new GameObject[] {}
};
}
public static void DrawTextureWithUVOverlay(Texture2D texture, GameObject gameObject, Rect drawableArea, Rect position, GITextureType textureType, bool drawSpecularUV)
{
LightmapVisualizationUtility.INTERNAL_CALL_DrawTextureWithUVOverlay(texture, gameObject, ref drawableArea, ref position, textureType, drawSpecularUV);
}
public void ObjectPreview(Rect r)
{
if (r.height <= 0)
{
return;
}
if (m_ZoomablePreview == null)
{
m_ZoomablePreview = new ZoomableArea(true);
m_ZoomablePreview.hRangeMin = 0.0f;
m_ZoomablePreview.vRangeMin = 0.0f;
m_ZoomablePreview.hRangeMax = 1.0f;
m_ZoomablePreview.vRangeMax = 1.0f;
m_ZoomablePreview.SetShownHRange(0, 1);
m_ZoomablePreview.SetShownVRange(0, 1);
m_ZoomablePreview.uniformScale = true;
m_ZoomablePreview.scaleWithWindow = true;
}
// Draw background
GUI.Box(r, "", "PreBackground");
// Top menu rect
Rect menuRect = new Rect(r);
menuRect.y += 1;
menuRect.height = 18;
GUI.Box(menuRect, "", EditorStyles.toolbar);
// Top menu dropdown
Rect dropRect = new Rect(r);
dropRect.y += 1;
dropRect.height = 18;
dropRect.width = 120;
// Drawable area
Rect drawableArea = new Rect(r);
drawableArea.yMin += dropRect.height;
drawableArea.yMax -= 14;
drawableArea.width -= 11;
int index = Array.IndexOf(Styles.ObjectPreviewTextureOptions, m_SelectedObjectPreviewTexture);
if (index < 0 || !LightmapVisualizationUtility.IsTextureTypeEnabled(kObjectPreviewTextureTypes[index]))
{
index = 0;
m_SelectedObjectPreviewTexture = Styles.ObjectPreviewTextureOptions[index];
}
if (EditorGUI.DropdownButton(dropRect, m_SelectedObjectPreviewTexture, FocusType.Passive, EditorStyles.toolbarPopup))
{
GenericMenu menu = new GenericMenu();
for (int i = 0; i < Styles.ObjectPreviewTextureOptions.Length; i++)
{
if (LightmapVisualizationUtility.IsTextureTypeEnabled(kObjectPreviewTextureTypes[i]))
{
menu.AddItem(Styles.ObjectPreviewTextureOptions[i], index == i, SelectPreviewTextureOption, Styles.ObjectPreviewTextureOptions.ElementAt(i));
}
else
{
menu.AddDisabledItem(Styles.ObjectPreviewTextureOptions.ElementAt(i));
}
}
menu.DropDown(dropRect);
}
GITextureType textureType = kObjectPreviewTextureTypes[Array.IndexOf(Styles.ObjectPreviewTextureOptions, m_SelectedObjectPreviewTexture)];
if (m_CachedTexture.type != textureType || m_CachedTexture.contentHash != LightmapVisualizationUtility.GetSelectedObjectGITextureHash(textureType) || m_CachedTexture.contentHash == new Hash128())
{
m_CachedTexture = LightmapVisualizationUtility.GetSelectedObjectGITexture(textureType);
}
if (m_CachedTexture.textureAvailability == GITextureAvailability.GITextureNotAvailable || m_CachedTexture.textureAvailability == GITextureAvailability.GITextureUnknown)
{
if (LightmapVisualizationUtility.IsBakedTextureType(textureType))
{
if (textureType == GITextureType.BakedShadowMask)
{
GUI.Label(drawableArea, Styles.TextureNotAvailableBakedShadowmask);
}
else
{
GUI.Label(drawableArea, Styles.TextureNotAvailableBaked);
}
}
else
{
GUI.Label(drawableArea, Styles.TextureNotAvailableRealtime);
}
return;
}
if (m_CachedTexture.textureAvailability == GITextureAvailability.GITextureLoading && m_CachedTexture.texture == null)
{
GUI.Label(drawableArea, Styles.TextureLoading);
return;
}
LightmapType lightmapType = LightmapVisualizationUtility.GetLightmapType(textureType);
// Framing and drawing
var evt = Event.current;
switch (evt.type)
{
// 'F' will zoom to uv bounds
case EventType.ValidateCommand:
case EventType.ExecuteCommand:
if (Event.current.commandName == EventCommandNames.FrameSelected)
{
Vector4 lightmapTilingOffset = LightmapVisualizationUtility.GetLightmapTilingOffset(lightmapType);
Vector2 min = new Vector2(lightmapTilingOffset.z, lightmapTilingOffset.w);
Vector2 max = min + new Vector2(lightmapTilingOffset.x, lightmapTilingOffset.y);
min = Vector2.Max(min, Vector2.zero);
max = Vector2.Min(max, Vector2.one);
float swap = 1f - min.y;
min.y = 1f - max.y;
max.y = swap;
// Make sure that the focus rectangle is a even square
Rect rect = new Rect(min.x, min.y, max.x - min.x, max.y - min.y);
rect.x -= Mathf.Clamp(rect.height - rect.width, 0, float.MaxValue) / 2;
rect.y -= Mathf.Clamp(rect.width - rect.height, 0, float.MaxValue) / 2;
rect.width = rect.height = Mathf.Max(rect.width, rect.height);
m_ZoomablePreview.shownArea = rect;
Event.current.Use();
}
break;
// Scale and draw texture and uv's
case EventType.Repaint:
Texture2D texture = m_CachedTexture.texture;
if (texture && Event.current.type == EventType.Repaint)
{
Rect textureRect = new Rect(0, 0, texture.width, texture.height);
textureRect = ResizeRectToFit(textureRect, drawableArea);
//textureRect.x = -textureRect.width / 2;
//textureRect.y = -textureRect.height / 2;
textureRect = CenterToRect(textureRect, drawableArea);
textureRect = ScaleRectByZoomableArea(textureRect, m_ZoomablePreview);
// Draw texture and UV
Rect uvRect = new Rect(textureRect);
uvRect.x += 3;
uvRect.y += drawableArea.y + 20;
Rect clipRect = new Rect(drawableArea);
clipRect.y += dropRect.height + 3;
// fix 635838 - We need to offset the rects for rendering.
{
float offset = clipRect.y - 14;
uvRect.y -= offset;
clipRect.y -= offset;
}
// Texture shouldn't be filtered since it will make previewing really blurry
FilterMode prevMode = texture.filterMode;
texture.filterMode = FilterMode.Point;
LightmapVisualizationUtility.DrawTextureWithUVOverlay(texture, Selection.activeGameObject, clipRect, uvRect, textureType);
texture.filterMode = prevMode;
}
break;
}
// Reset zoom if selection is changed
if (m_PreviousSelection != Selection.activeInstanceID)
{
m_PreviousSelection = Selection.activeInstanceID;
m_ZoomablePreview.SetShownHRange(0, 1);
m_ZoomablePreview.SetShownVRange(0, 1);
}
// Handle zoomable area
Rect zoomRect = new Rect(r);
zoomRect.yMin += dropRect.height;
m_ZoomablePreview.rect = zoomRect;
m_ZoomablePreview.BeginViewGUI();
m_ZoomablePreview.EndViewGUI();
GUILayoutUtility.GetRect(r.width, r.height);
}
internal static extern bool IsTextureTypeEnabled(GITextureType textureType);