Set the modifier's Output Type to NURBS, and then collapse when you're done adjusting the parameters. Another way to create a NURBS surface object is to apply a Lathe or Extrude modifier to a NURBS curve.This removes the modifiers from the stack without changing the position of the modified points or CVs, making for a simpler and quicker model. After applying the modifiers, collapse the modifier stack. The modifiers act on the points or CVs of the surface, and not on the surface itself. You can also change the NURBS surface by applying modifiers.
#Autodesk 123d design orbit keyboard Patch#
Other objects you can convert to NURBS are prisms, torus knots, lofts, and patch grids. After collapsing the primitive, you can select various CVs and transform them. Collapsing a primitive into a NURBS object is one of the quickest ways to start building a NURBS model.These always convert to a junction between two different NURBS curves. If you want a single NURBS curve, don't change vertices to Bezier Corner vertices.Then when you collapse the spline to a NURBS curve, you obtain a single curve. Modify the editable spline so that all its vertices are Bezier or Smooth vertices. You can control this before NURBS conversion by first converting the Shape to an editable spline. Shapes with sharp angles collapse to multiple NURBS curves.A spline Shape or a NURBS curve can be a good starter object for a NURBS model. Remember that you can collapse splines to NURBS objects.Otherwise, Surface Select can select only the Surface and Surface CV sub-object levels. However, before you do so make sure that Relational Stack is on Relational Stack is on the General rollout for NURBS models. You can use Surface Select to apply modifiers to a sub-object selection.If a dependent sub-object doesn't change during animation, you can improve performance by making the sub-object independent after you finish creating it.Trims are the slowest kind of dependency, and texture surfaces are the slowest kind of dependent sub-object. In general, point curves and surfaces are slower than CV curves and surfaces.However, understand that the more dependencies a model has, the slower interactive performance becomes. Dependent sub-objects use relational modeling to build NURBS geometry that is related to other geometry. Sub-objects are either independent or dependent.Get in the habit of creating a single object at the top level, then going immediately to the Modify panel and adding sub-objects by using rollouts or the NURBS Creation Toolbox. In 3ds Max, a NURBS model is a single, top-level NURBS object that can contain a variety of sub-objects.
0 kommentar(er)
