Criteria Color if Adaptive Subdivision is set in Windows Render stats, the subdivision is increased if the three corners of a given rendered triangle have different colors. Value the numeric highlight angle is used to determine whether or not the subdivision should be increased. If toggled ON , this determines that the minimum and maximum values will be calculated and shown on the information line when the QuickRender has finished. If toggled ON , this keeps track of the highest and lowest highlight angle values used in the rendering, and sets the range found in Highlight params to the minimum and maximum. This range applies to the next rendering, and is displayed on the information line.
Tolerance Tries to adapt the subdivision to follow the highlight line of the surface.
It uses the Criteria that is selected in addition to a numeric value to determine whether or not to increase the subdivision level. To adjust the Tolerance value, click in the field, type a new value, then press Enter, or drag the slider bar. While Evaluate Continuity Surf continuity can also do this, Highlight provides a broader view of surfaces and can show multiple relationships at once. To select the colors and texture, and set other parameters to use with Highlight . In addition, a color ramp editor is built into the window, along with a Show Mapping feature that identifies the values associated with each color.