Unreal Engine Issues

UE-40133

Alembic Importer does not import the correct amount of curves when using the Minimum Number Of Vertex Influence Percentage setting

Alembic Importer does not import the correct amount of curves when using the Minimum Number Of Vertex Influence Percentage setting

Developer Notes

In 4.15 the number of vertices in the resulting Skeletal mesh should be lower than in 4.14. This means that the % of influencing has to be higher than before, and that is what's causing the issue your seeing.

Description

This is a regression from 4.14.2

Steps to Reproduce
  1. Open QAGame in the editor
  2. Click on Import in the Content Browser
  3. Select ScentTest.abc from Engine\Content\NotForLicensees\QA\Import_Test_Assets\AlembicAssets
  4. Change the following settings:
    • Import Type = Skeletal
    • Min Number of Vertex Influence Percentage = 50.0
    • Flip V = Unchecked
    • Scale = 5.0, 5.0, 5.0
    • Rotation = 0.0, 0.0, -90.0
  5. Click Import
  6. Open SceneTest_Animation

Result: Only the cube animates in Persona and 4 morph curves are displayed
Expected: Both the Cube and Torus animate and 5 morph curves are displayed

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By Design
ComponentUE - Gameplay
Affects Versions4.15
Target Fix4.15
CreatedJan 3, 2017
ResolvedJan 5, 2017
UpdatedApr 27, 2018