Smooth Laplacian Modifier

The Smooth Laplacian modifier allows you to reduce noise on a mesh's surface with minimal changes to its shape.

它也可以使用一个负 系数 夸大形状。

The Smooth Laplacian is useful for objects that have been reconstructed from the real world and contain undesirable noise. It removes noise while still preserving desirable geometry as well as the shape of the original model.

拉普拉斯平滑修改器基于微分方程中的曲率流量拉普拉斯-贝尔特拉米算子。

选项

../../../_images/modeling_modifiers_deform_laplacian-smooth_panel.png

The Smooth Laplacian modifier.

重复

Repetitions allow you to run the smoothing operation multiple times. Each repetition causes the flow curvature of the mesh to be recalculated again, and as a result it removes more noise with every new iteration using a small Factor < 1.0.

当值为 0 时,什么都不做.

Note

重复的次数越多,计算的时间越长,因此处理有很多顶点的网格时要注意。

系数为0.5时。
../../../_images/modeling_modifiers_deform_laplacian-smooth_repeat0.jpg

重复: 0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_repeat1.jpg

重复: 1.

../../../_images/modeling_modifiers_deform_laplacian-smooth_repeat5.jpg

重复: 5.

../../../_images/modeling_modifiers_deform_laplacian-smooth_repeat10.jpg

重复: 10.

系数为2.0时。
../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-axis.png

重复: 0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-repeat1.png

重复: 1.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-repeat5.png

重复: 5.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-repeat10.png

重复: 10.

系数为-0.5时。
../../../_images/modeling_modifiers_deform_laplacian-smooth_camel-repeat0.jpg

重复: 0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_camel-repeat1.jpg

重复: 1.

../../../_images/modeling_modifiers_deform_laplacian-smooth_camel-repeat5.jpg

重复: 5.

../../../_images/modeling_modifiers_deform_laplacian-smooth_camel-repeat10.jpg

重复: 10.

系数

控制沿着曲率流的每个顶点的位移量。

  • 使用小的 系数 , 可以从形状中去除起伏噪波且并不影响想要的几何体。

  • 大的 系数 可以得到更光滑的形状,代价是损失了几何的细节。

  • 系数 可以增强形状,保留满意的几何形体。

  • 系数 取负值时,多次迭代可以放大起伏噪波。

../../../_images/modeling_modifiers_deform_laplacian-smooth_repeat0.jpg

系数: 0.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_lambda0-5.jpg

系数: 0.5.

../../../_images/modeling_modifiers_deform_laplacian-smooth_lambda.jpg

系数: 2.5.

../../../_images/modeling_modifiers_deform_laplacian-smooth_lambda5-0.jpg

系数: 5.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-lambda0-0.png

系数: 0.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-lambda1-0.jpg

系数: 1.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-lambda10-0.jpg

系数: 10.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-lambda50-0.jpg

系数: 50.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_camel-repeat0.jpg

系数: 0.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_camel-lambda20-0.jpg

系数: -20.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_camel-lambda50-0.jpg

系数: -50.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_camel-lambda300-0.jpg

系数: -300.0.

边界范围

由于边缘无法计算曲率流,所以它们必须单独控制。边缘采用相比而言更简单的方法平滑,用此属性可以控制影响程度。

正值会平滑顶点位置,负值会通过反方向的变换达到 增强 效果。

系数为2.5时.
../../../_images/modeling_modifiers_deform_laplacian-smooth_border0-0.jpg

边界范围: 0.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_border1-0.jpg

边界范围: 1.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_border.jpg

边界范围: 2.5.

../../../_images/modeling_modifiers_deform_laplacian-smooth_border10-0.jpg

边界范围: 10.0.

系数为 20.0 时.
../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-border0-0.jpg

边界范围: 0.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-border1-0.jpg

边界范围: 1.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-border5-0.jpg

边界范围: 5.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-border20-0.jpg

边界范围: 20.0.

系数为-30.0时.
../../../_images/modeling_modifiers_deform_laplacian-smooth_cup-0-0.jpg

边界范围: 0.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cup-20-0.jpg

边界范围: -20.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cup-50-0.jpg

边界范围: -50.0.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cup-200-0.jpg

边界范围: -200.0.

X/Y/Z轴

切换按钮以启用/禁用X、Y和/或Z轴方向上的顶点变形。

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-axis.png

X,Y,Z: 未选中.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-axis-xyz.jpg

X,Y,Z: 选中.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-axis-xy.jpg

X,Z: 选中.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-axis-x.png

X: 选中.

../../../_images/modeling_modifiers_deform_laplacian-smooth_t-axis.png

X,Y,Z: 未选中.

../../../_images/modeling_modifiers_deform_laplacian-smooth_t-axis-xyz.jpg

X,Y,Z: 选中.

../../../_images/modeling_modifiers_deform_laplacian-smooth_t-axis-xy.jpg

X,Z: 选中.

../../../_images/modeling_modifiers_deform_laplacian-smooth_t-axis-x.png

X: 选中.

维持体积

平滑操作可能产生收缩效果。这就是大的 系数 或者大的 重复 值的效果,你可以使用该选项来降低收缩程度。

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-volume-false.png

关.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-volume-true.jpg

开.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-volume2-false.jpg

关.

../../../_images/modeling_modifiers_deform_laplacian-smooth_cube-volume2-true.jpg

开.

顶点组

顶点组名,用来限制仅对一组定点起效。通过绘制顶点权重达到精确,实时的平滑或增强效果。

Original Geometry

No Group Chosen

Vertex Weights

Result

../../../_images/modeling_modifiers_deform_laplacian-smooth_repeat0.jpg
../../../_images/modeling_modifiers_deform_laplacian-smooth_lambda.jpg
../../../_images/modeling_modifiers_deform_laplacian-smooth_femme-paint.jpg
../../../_images/modeling_modifiers_deform_laplacian-smooth_femme-wgroup.jpg
../../../_images/modeling_modifiers_deform_laplacian-smooth_t-axis.png
../../../_images/modeling_modifiers_deform_laplacian-smooth_t-axis-xyz.jpg
../../../_images/modeling_modifiers_deform_laplacian-smooth_t-paint.jpg
../../../_images/modeling_modifiers_deform_laplacian-smooth_t-wgroup.png
../../../_images/modeling_modifiers_deform_laplacian-smooth_camel-repeat0.jpg
../../../_images/modeling_modifiers_deform_laplacian-smooth_camel-vertex1.jpg
../../../_images/modeling_modifiers_deform_laplacian-smooth_camel-vertex2.jpg
../../../_images/modeling_modifiers_deform_laplacian-smooth_camel-vertex3.jpg
Invert <->

Inverts the influence of the selected vertex group, meaning that the group now represents vertices that will not be deformed by the modifier.

The setting reverses the weight values of the group.

规格化

开启该选项时,结果与面的大小有关;关闭该选项后,可能出现几何长钉形状。

../../../_images/modeling_modifiers_deform_laplacian-smooth_monkey-normalized0.jpg

原始几何体.

../../../_images/modeling_modifiers_deform_laplacian-smooth_monkey-normalized1.jpg

开.

../../../_images/modeling_modifiers_deform_laplacian-smooth_monkey-normalized2.jpg

关.

../../../_images/modeling_modifiers_deform_laplacian-smooth_monkey-normalized3.jpg

关闭规格化,高系数。

Hint

对于具有大量顶点的网格,超过一万(10,000)个时,可能需要几分钟来处理。所以在对整个模型执行修改器之前,可以使用网格的一小部分进行测试。

例子

../../../_images/modeling_modifiers_deform_laplacian-smooth_repeat0.jpg

女性正面图 blend 文件

../../../_images/modeling_modifiers_deform_laplacian-smooth_border0-0.jpg

女性侧面视图 blend 文件

../../../_images/modeling_modifiers_deform_laplacian-smooth_t-wgroup.png

立方体平滑 blend 文件

../../../_images/modeling_modifiers_deform_laplacian-smooth_camel-repeat0.jpg

增强的形状 blend 文件

See also

平滑修改器