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SKNB
SKNB
  • 121
  • 3

How do I cut an outline/silhouette out of a mesh?
I.e.

  1. remove all interior vertices inside the outlining shape
  2. create new vertices/edges around border of outlining shape

Example:

Here is Lake VictoriaNyanza (outlined in orange) enter image description here

I would like all the vertices inside the shape removed, and the last edge of the borders ending at the point of intersection... enter image description here

...and the new border to be the lake shore enter image description here

Tried:

  1. Boolean modifier:
  • This results in some very unusual faces (see below).
  1. Edit --> Select All --> Knife --> Ctrl+Click on outline --> Knife Project
  • This seems to do nothing.

Boolean difference (despite removing doubles/recalculating normals) enter image description here

How do I cut an outline/silhouette out of a mesh?
I.e.

  1. remove all interior vertices inside the outlining shape
  2. create new vertices/edges around border of outlining shape

Example:

Here is Lake Victoria (outlined in orange) enter image description here

I would like all the vertices inside the shape removed, and the last edge of the borders ending at the point of intersection... enter image description here

...and the new border to be the lake shore enter image description here

Tried:

  1. Boolean modifier:
  • This results in some very unusual faces (see below).
  1. Edit --> Select All --> Knife --> Ctrl+Click on outline --> Knife Project
  • This seems to do nothing.

Boolean difference (despite removing doubles/recalculating normals) enter image description here

How do I cut an outline/silhouette out of a mesh?
I.e.

  1. remove all interior vertices inside the outlining shape
  2. create new vertices/edges around border of outlining shape

Example:

Here is Lake Nyanza (outlined in orange) enter image description here

I would like all the vertices inside the shape removed, and the last edge of the borders ending at the point of intersection... enter image description here

...and the new border to be the lake shore enter image description here

Tried:

  1. Boolean modifier:
  • This results in some very unusual faces (see below).
  1. Edit --> Select All --> Knife --> Ctrl+Click on outline --> Knife Project
  • This seems to do nothing.

Boolean difference (despite removing doubles/recalculating normals) enter image description here

Source Link
SKNB
SKNB
  • 121
  • 3

Easiest way to cut out outline from mesh

How do I cut an outline/silhouette out of a mesh?
I.e.

  1. remove all interior vertices inside the outlining shape
  2. create new vertices/edges around border of outlining shape

Example:

Here is Lake Victoria (outlined in orange) enter image description here

I would like all the vertices inside the shape removed, and the last edge of the borders ending at the point of intersection... enter image description here

...and the new border to be the lake shore enter image description here

Tried:

  1. Boolean modifier:
  • This results in some very unusual faces (see below).
  1. Edit --> Select All --> Knife --> Ctrl+Click on outline --> Knife Project
  • This seems to do nothing.

Boolean difference (despite removing doubles/recalculating normals) enter image description here