|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.|
|mipLevel||What mip-level to sample. If negative, texture will be sampled normally. It sets material _Mip property.|
Draws the alpha channel of a texture within a rectangle.