GraphicsTexture that represents the texture resource uploaded to the graphics device (Read Only).
This returns the current GraphicsTexture object corresponding to the Texture.
Note: When you use the Unity APIs to reinitialize the properties of a Texture object, or when a different mipmap level is streamed in, it changes the underlying GraphicsTexture object. Rather than caching the value, get Texture.graphicsTexture again to retrieve the new GraphicsTexture.