This is one in a series of "primitive" 3-dimensional shapes that I've created as reference points for traditional methods of coloring. Each object in the series is depicted in both Isometric and Dimetric view, with the same environment, background, perspective ratio and lighting. I tried to show the rendered variance in the same object with different material properties.
This is a Conical Spiral. Top Row: Polished American Beechwood Second row: Brushed Steel Third Row: Blue Glass Fourth Row: Transparent Polycarbonate Plastic Fifth Row: Cream-White Low Gloss Plastic
If there are any specific materials that you would like to see this, or any other shape rendered in, or rendered in an alternate type of environment or lighting scheme, feel free to ask.