拉普拉斯变形修改器

The Laplacian Deform Modifier allows you to pose a mesh while preserving geometric details of the surface.

用户定义一组“锚”顶点,然后其中一些四处移动。该修改器保持其他锚顶点的位置不变并计算所有剩余顶点的最好的可能位置,以保持原始几何体的细节。

This modifier captures the geometric details with the use of differential coordinates. The differential coordinates captures the local geometric information how curvature and direction of a vertex based on its neighbors.

Note

You must define an Anchors Vertex Group. Without a Vertex Group Modifier does nothing.

选项

../../../_images/modeling_modifiers_deform_laplacian-deform_panel.png

Laplacian Deform Modifier.

重复

Repetitions iteratively improve the solution found. The objective is to find the rotation of the differential coordinates preserving the best possible geometric detail. Details are retained better if more repetitions are used, however, it will take longer to calculate.

../../../_images/modeling_modifiers_deform_laplacian-deform_cactus09.png

Original Model.

../../../_images/modeling_modifiers_deform_laplacian-deform_cactus-repeat1.png

Repeat: 1.

../../../_images/modeling_modifiers_deform_laplacian-deform_cactus-repeat2.png

Repeat: 2.

../../../_images/modeling_modifiers_deform_laplacian-deform_cactus-repeat5.png

Repeat: 5.

../../../_images/modeling_modifiers_deform_laplacian-deform_horse-repeat0.jpg

Original Model.

../../../_images/modeling_modifiers_deform_laplacian-deform_horse-repeat1.jpg

Repeat: 1.

../../../_images/modeling_modifiers_deform_laplacian-deform_horse-repeat2.jpg

Repeat: 2.

../../../_images/modeling_modifiers_deform_laplacian-deform_horse-repeat10.jpg

Repeat: 10.

锚定点组
A vertex group name, to define the group of vertices that the user will use to transform the model. The weight of each vertex does not affect the behavior of the modifier; the method only takes into account vertices with weight greater than 0.
绑定
The Bind button is what tells the Laplacian Deform Modifier to actually capture the geometry details of the object, so that altering the anchors vertices actually alters the shape of the deformed object.
解除绑定
绑定修改器后, 你可能以后决定更改锚顶点组,这时,你需要先 * 解除绑定 * 修改器后再次绑定修改器。

错误信息

顶点组 * 组名 * 无效
当用户删除顶点组或当用户更改顶点组的名称,将显示此消息。
Vertices changed from X to Y
This message is displayed when a user adds or deletes vertices to the mesh.
Edges changed from X to Y
This message is displayed when a user adds or deletes edges to the mesh.
系统没有找到解决方案
This message is displayed if the solver could not find a solution for the linear system.

Note

If the mesh is dense, with a number of vertices greater than 100,000, then it is possible that the non-linear optimization system will fail.

历史

Laplacian Surface Editing is a method developed by Olga Sorkine and others in 2004. This method preserves geometric details as much as possible while the user makes editing operations. This method uses differential coordinates corresponding to the difference between a vector and the weighted average of its neighbors to represent the local geometric detail of the mesh.

../../../_images/modeling_modifiers_deform_laplacian-deform_diagram-differential-coordinate.png

Differential Coordinate.