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Trying to use FColor for UProceduralMeshComponent Sections!

Goal:
I am trying to make an alternative to Debug lines and shapes, by making Procedural Mesh on runtime, it is very low cost when used to draw a small set of squares(two triangles) and it is very appealing to use.

Problem:
Only problem I faced is trying to assign a color or linear color to MeshSections.
Both functions CreateMeshSection, and CreateMeshSection_LinearColor take my FVerticesColor(FColor,FLinearColor, respectively), yet colors never appeared.

Relevant details:

  • I tried to assigned proper UVs, and then to deleted all UVs.
  • I did the same to Normals.
  • I did the same to Tangents.

Any clue, or total alternative?