Helgard, Sounds like you've got it dialed in. Where I'm going is to try and totally eiliminate the need for texture maps altogether for several reasons 1). Renders are about 10 times faster sans tex maps 2). There are no ugly seams 3). You can render very large art poster images (20,000 x 15,000 for example) with no loss of resolution and 4). It's fun to try and mimic realism using only mathematics