投影切割

参考

模式:

编辑模式

菜单:

网格 ‣ 投影切割

Knife Project is a non-interactive tool where you can use objects to cookie-cut into one or more meshes rather than hand drawing the line. The outline of the selected objects that are not in Edit Mode is projected along the view axis onto the meshes that are in Edit Mode, and then cuts into the faces there. Afterwards, the resulting geometry inside the cut gets selected.

Note

The cutting objects must be curves or non-manifold meshes (e.g. flat shapes, loose edges). Select Non-Manifold will highlight the cutting edges of mesh objects.

Keep in mind that Knife Project works from the current view's perspective. For best results, make sure to rotate your view to exactly the position you require before using this tool. Orthographic views such as Right, Front, and Top are commonly used for this.

Hint

使用 3D视图对齐 调整投影轴向。

To use Knife Project, select the objects to be cut, switch to Edit Mode, select the cutting objects in the Outliner (Ctrl-LMB), and choose Mesh ‣ Knife Project.

If Blender switches back to Object Mode when selecting the cutting objects, make sure that Edit ‣ Lock Object Modes is checked in the topbar. Alternatively, if you have only one cutting object, you can select it in the viewport with Ctrl-LMB.

选项

透切

在整个网状结构中进行切割，包括目前看不到的背面。

示例

使用文本物体投影前。	投影切割后。
投影前。	投影切割结果（挤出切割范围后）。
使用3D曲线投影前。	投影切割结果（挤出切割范围后）。

已知局限

当在编辑模式下一次切割多个网格时，这些网格的几何体不会遮挡它们后面的独立网格物体。