Crease

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Edit Tools > Hard Crease

Crease 指令可以将平滑的细分物件边缘/顶点更改为锐边/锐点,或者将熔接的边缘更改为未熔接的边缘。

向一个细分物件 (左) 和一个网格 (右)添加锐边。

输入

  • 细分物件的边缘和顶点
  • 细分物件控制点连线的点和边
  • 网格边缘

RemoveCrease

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Edit Tools > Remove Crease

RemoveCrease 指令可以将细分物件的锐边/锐点变平滑,或者将未熔接边缘转变为熔接边缘。

向移除细分物件 (左) 和网格 (右)的锐边。

输入

  • 细分物件的边缘和顶点
  • 细分物件控制点连线的点和边
  • 网格边缘

SubDCrease

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New in V8

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SubD

Edit Tools > Soft Crease

The SubDCrease command lets you create and modify the weight of "soft crease" along selected SubD edges. SubD surface tangent and curvature are continuous across soft crease edges.

The soft crease weight of the SubD edges are set to 0%, 90%, and 50%.

步骤

  1. Select SubD edges to apply soft crease weight.

    The edges can be from multiple SubDs and in multiple chains.

  2. When the command prompts "Select highlighted vertex":

    • Type a number between 0 and 100 to apply a constant weight to every selected edge.

    • Click on a weight label to edit the weight at that location. 

      A highlighted dot of "P" appears and you are prompted to enter a weight.

      The weight blends from a label to another across the edge points in between.

    • Click on a highlighted edge point to add an additional weight label.

指令行选项

CreaseAll

Makes the selected edges hard creases equivalent to the Crease command.

ConstantWeight

Applies the same weight value to every selected edge.

SmallerText/LargerText

Changes the size of the weight labels so they are appropriate for your current viewing state.

附注

  • Crease weight of 100% makes sharpest soft creases. It does not make hard creases like the Crease command.

    A soft crease weight at 100% (left) and a hard crease (right).
  • The weight values applied to SubD vertices can be cleared by the RemoveCrease command.

  • The SelSubDEdges command can be used to select all soft crease edges on selected SubDs for editing.

  • The ShowEdges command highlights soft crease edges.

SelSubDEdges

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New in V8

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The SelSubDEdges command selects different types of edges on selected SubDs.

步骤

  1. Select SubD objects, press Enter.

    The command reports the numbers of different edge types.

  2. Sets what types of edges to be selected.

    The command-line only shows the edge types that the selected SubDs have.

指令行选项

Smooth (Yes/No)

Specifies whether smooth edges will be selected.

Weighted (Yes/No)

Specifies whether soft crease edges will be selected.

The SubDCrease command adds soft crease edges to SubDs.

Crease (Yes/No)

Specifies whether hard crease edges will be selected.

The Crease command adds hard crease edges to SubDs.

Boundary (Yes/No)

Specifies whether naked edges will be selected.

请参考

选取细分物件/网格物件的边缘回路和环形边缘

Rhino SubD Subdivision Rules for Developers