Generally you want a relatively new computer to run Shoe Last Maker smoothly. But to make it run smoothly on an older machine, it helps to run in shaded mode rather than rendered.
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These would be isocurves. You can turn them off in the display settings of Rhino by setting them to zero width: Tools/Options/View/Display […]
Your relevent FAQ answer.
Not currently, and probably not for quite some time.
Sometimes this can happen and I’m not sure why. The fix is use the rotateView command (or button) to get it back […]