static function DrawTextureAlpha (position : Rect, image : Texture, scaleMode : ScaleMode = ScaleMode.StretchToFill, imageAspect : float = 0) : void
Parameters
Name | Description |
position |
Rectangle on the screen to draw the texture within.
|
image |
Texture to display.
|
scaleMode |
How to scale the image when the aspect ratio of it doesn't fit the aspect ratio to be drawn within.
|
imageAspect |
Aspect ratio to use for the source image. If 0 (the default), the aspect ratio from the image is used.
|
Description
Draws the alpha channel of a texture within a rectangle.
See Also: GUI.color, GUI.contentColor
Alpha texture in an Editor Window.
class EditorGUITextures
extends EditorWindow {
var texture :
Texture2D;
var invertedTexture :
Texture2D;
var showInverted =
false;
@
MenuItem(
"Examples/Texture Previewer")
static function Init() {
var window = GetWindow(EditorGUITextures);
window.position =
Rect(0,0,400, 200);
window.Show();
}
function OnGUI() {
texture =
EditorGUI.ObjectField(
Rect(3,3,200,20),
"Add a Texture:",
texture,
Texture);
if(
GUI.Button(
Rect(208,3, position.width - 210, 20),
"Process Inverted")) {
if(invertedTexture)
DestroyImmediate(invertedTexture);
invertedTexture =
new Texture2D(texture.width,
texture.height,
texture.format,
(texture.mipmapCount != 0));
for (
var m :
int = 0; m < texture.mipmapCount; m++)
invertedTexture.SetPixels(texture.GetPixels(m), m);
InvertColors();
showInverted = true;
}
if(texture) {
EditorGUI.PrefixLabel(
Rect(25,45,100,15),0,
GUIContent(
"Preview:"));
EditorGUI.DrawPreviewTexture(
Rect(25,60,100,100),texture);
EditorGUI.PrefixLabel(
Rect(150,45,100,15),0,
GUIContent(
"Alpha:"));
EditorGUI.DrawTextureAlpha(
Rect(150,60,100,100),texture);
EditorGUI.PrefixLabel(
Rect(275,45,100,15),0,
GUIContent(
"Inverted:"));
if(showInverted)
EditorGUI.DrawPreviewTexture(
Rect(275,60,100,100),invertedTexture);
if(
GUI.Button(
Rect(3,position.height - 25, position.width-6,20),
"Clear texture")) {
texture =
EditorGUIUtility.whiteTexture;
showInverted =
false;
}
}
else {
EditorGUI.PrefixLabel(
Rect(3,position.height - 25,position.width - 6, 20),
0,
GUIContent(
"No texture found"));
}
}
function InvertColors() {
for (
var m :
int = 0; m < invertedTexture.mipmapCount; m++) {
var c :
Color[] = invertedTexture.GetPixels(m);
for (
var i :
int = 0 ;i < c.Length; i++) {
c[i].r = 1 - c[i].r;
c[i].g = 1 - c[i].g;
c[i].b = 1 - c[i].b;
}
invertedTexture.SetPixels(c, m);
}
invertedTexture.Apply();
}
function OnInspectorUpdate() {
Repaint();
}
}