Smoothing shadows and artifacts in HDRI render
I recently applied a tip from "Maya 5: Killer Tips" to create the attached HDRI rendering. With just a few actions I came up with this render. But I notice that I need to smooth out the shadows and get rid of slight artifacting showing in the image.
Can someone tell me what settings I should adjust to do this?
BTW, the only lighting comes from the HDR image placed in both the Color and Ambient channels, a light was added but the Intensity was turned down to 0.