Description

When importing Rhino 'Extrusions' with Datasmith results in extremely dense meshes. A simple box can end up having thousands of vertices.

This issue was reported and tested in 4.21 (4.21E0). This was reproduced in 4.20 (4.20E4).

Steps to Reproduce
  1. Download the attached file
  2. Open the UE4 Editor and create a blank Unreal Studio project
  3. Navigate to the Import DataSmith button, click the dropdown arrow, and select Import CAD
  4. Use modify the import settings with these values: Chord Tolerance = 0.4 cm, Max Edge Length = 10 cm, and Normal Tolerance = 20 deg
  5. Import the .3dm file

Results: Vertices and Triangles are really high, which result in extremely dense meshes

Exported: Rhino extrusions import with precise tessellation values.

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Cannot Reproduce
CreatedNov 28, 2018
ResolvedJun 19, 2019
UpdatedOct 6, 2020
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