The Parametric method of surface approximation defines the U and V steps of the selected object as seen by the geometry. This type of approximation uses non–adaptive sampling between parametric intervals.
Changing these values changes the number of steps in the object’s surface. These parameters remain the same throughout the animation, and if the camera gets very close to the object the steps might be seen.
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The Displacement tab uses a Refinement Settings > Step parameter instead of defining both the U and V steps of a surface’s geometry. The Step parameter controls the U step only (which, in the case of displacement, affects the U and V at the same time). |
Autodesk Softimage v.7.5