More than just a new dialog, the Image Texture dialog gives you a host of new controls that take the realism of your scenes to a whole new level.

For example, in the Reflectivity fly-out drawer you'll find controls for Blurred Reflection; Fresnel, Cosine and Linear interpolation methods; and second incidence value.

You'll find similar fly-out drawers and controls for each channel. And now previews are totally under your control.