扩展

This is a multi-purpose modal operator to intuitively create and edit masks/face sets. When executed, it uniformly expand outwards a pattern from the vertex under the cursor.

Note

These operators are meant to be used interactively through the shortcut.

There is also a full showcase of the Expand features and use cases.

A preview of Expand Mask by Topology

按拓扑展开遮罩

参考

模式:

雕刻模式

菜单:

掩码 ‣ 按拓扑扩展掩码

快捷键:

Shift-A

Expands a mask from the active vertex.

用法

Mask from A to B

Start the operator and expand a mask from an origin to your mouse cursor distance. Then confirm with LMB or Return

By default the expansion will use a Geodesic falloff 1 to create perfectly accurate distances along the surfaces. Use other falloff types via 2, 3 & 4 to expand via triangles, whole faces or scene distances instead.

The typical result when using the Diagonals falloff to expand along the quads of the face.

Start Expand while pointing at an open boundary to expand from the entire boundary loop. This will always use the Topology falloff mode.

Fill Connected Meshes

Move your cursor outside of the boundaries of the mesh to mask the entire connected mesh. This can be done repeatedly to quickly mask separate meshes.

Fill Face Sets

Hold Ctrl to snap to face sets under your cursor and fill them. Any face set that was already covered in the expansion will be filled as well.

Automatically Set Transform Pivot

While using any Transform tool, the pivot point will automatically snap the the border of an Expand result. This way areas (Like limbs) can be masked and then immediately rotated or otherwise transformed.

Pattern Creation

The different falloff types can be used for circular, triangular and square patterns. More loops can also be added/removed via W & Q to repeat the pattern across the mesh.

An example of using expand with mirror options, loops and a recursion to create wood carving patterns.

Tip

Mirror options can also be combined with the expansion.

Linear gradients G or brush falloff gradients B will help to add slanted surfaces to the patterns.

A “Recursions” with R or Alt-R will start a new expansion along the border of the current expansion. Doing this multiple times, can help for for increasingly random patterns or advanced pattern creation.

An example of using loops and gradients with multiple expanded masks.

Tip

Remember that Expand only affects visible geometry. So if a pattern should only be created on a part of the mesh, hide the other geometry first.

Use the Mesh Filter to deform the geometry and the Color Filter to add colors, to apply the patterns on the sculpt.

Expanding Textures

Textures can be used to affect the shape and gradients of the expanded mask. This feature can be combined with loops and recursion to create unique results.

To use a texture, you need to assign it to your currently active brush in the Texture Brush Settings. The texture can be edited/created in the Texture Properties.

Note

This texture only works when the Mapping is set to 3D.

Use Y and T to increase or decrease the affect the texture has on the edge of the mask.

装配器

反转:

F Flips between expanding a positive mask (value of one) or a negative mask (value of zero). In the case of face sets, this option flips between including areas inside the masked area or areas outside the masked area. .. needs visual technical examples for both

切换保留状态:

E Accumulate the new mask on top of the previous one or replace it. For Face Sets, this will toggle between creating Face Sets boundaries or replacing the existing Face Sets.

移动原点:

Spacebar Moves the initial vertex used for calculating the falloff. .. needs visual technical example

测地线衰减:

1 使用基于 测地线 距离的衰减，从边缘边界到活动顶点。

拓扑衰减:

2 使用基于泛滥填充的渐变，使用边缘。

对角线偏移:

3 利用多边形的对角线和边缘，在泛滥填充的基础上使用淡化。

球形:

4 Uses a falloff based on the Euclidean distances from the edge boundary to the active vertex. .. needs visual technical examples

切换渐变:

G Enables linear gradient of values from the origin to the current active vertex.

切换画笔渐变:

B Similar to linear gradient but uses the current brush Falloff to define the shape of the falloff. .. needs visual technical examples

测地法递归步骤:

R Start a new expansion with a Geodesic falloff from the boundary of the current falloff.

拓扑递归步骤:

Alt-R Start a new expansion with a topology falloff from the boundary of the current falloff. .. needs visual technical examples

对齐扩展到面组:

Ctrl 将扩展的区域隔离到游标下设置的面的边界。

循环计数增加:

W 增加运行运算符的循环或迭代次数;使用四个循环会将掩码分成四个部分。

循环计数减少:

Q Decrease the number of loops or iterations the operator is run; using four loops will split the mask into four parts. .. needs visual technical examples

纹理失真增加:

Y 在使用纹理扭曲遮罩形状时增加衰减距离。

纹理失真减少:

T Decreases the falloff distance when using a texture to distort the mask shape. ..needs visual technical examples

按法向展开遮罩

参考

模式:

雕刻模式

菜单:

遮罩 ‣ 按法线扩展遮罩

快捷键:

Shift-Alt-A

Expand a mask, following the curvature of the surface. This operator uses the same internal operator as 扩展 meaning all the shortcuts and functionality works the same as that tool.

This operator is especially useful for hard surface sculpting.

Tip

If one expansion does not properly fill the entire desired surface, use the operator repeatedly with a different starting point.

Note

Using any of the Falloff shortcuts 1-4 will replace the curvature falloff of this operator.

按拓扑展开面组

参考

模式:

雕刻模式

菜单:

面组 ‣ 按拓扑展开面组

快捷键:

Shift-W

Expands a face set from the active vertex. This operator uses the same internal operator as 扩展 meaning all the hotkeys and functionality works the same as that tool, with the gradient features as the exception.

用法

Saving Masks

Expanding Face Sets has all the same use cases as expanding masks. The advantage for this one is that they will be saved for repeated usage. Face sets can be filled any time with a mask, so assigning areas face sets will save you time. (And of course face sets can be used to hide face sets)

Pivot Points for Pose Brush

When using the Pose Brush it is most predictable when using it with Face Sets to define the face set boundaries as pivot point locations. Face Sets can be expanded from a point or from a boundary between hidden face sets to create them quickly. Alternatively Grow/Shrink Face Sets or use the Expand Active Face Set to dynamically grow/shrink them.

Cloth Sculpting

Tools like the Cloth Filter and Cloth Brush work especially well when only simulating small areas at a time. Face Sets can very easily be created with Expand to assign areas of action.

展开活动面组

参考

模式:

雕刻模式

菜单:

面组 ‣ 按拓扑展开面组

快捷键:

Shift-Alt-W

Expands an existing face set with a geodesic falloff. This operator uses the same internal operator as 扩展 meaning all the hotkeys and functionality works the same as that tool.

Note

Using any of the Falloff shortcuts 1-4 the operator to switch to Expand Face Set by Topology.

用法

Resizing Face Sets

Resize a Face Set along the surface distances. It is an alternative to Grow/Shrink Face Sets which follows the topology instead of geodesic distances.

Joining Face Sets

When holding Ctrl the expansion will instead snap to other Face Sets. This is a fast way of joining multiple face sets into one.