The mesh drawn by the scene proxy disappears while dragging it.

Development Rendering
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1

The mesh drawn by the scene proxy disappears while dragging it.

Situation:

  • I customized CreateSceneProxy in MYMeshComponent (which inherits from UMeshComponent) to render a mesh from C++.
  • In the proxy class (inheriting from FPrimitiveSceneProxy and overriding GetDynamicMeshElements) I use FDynamicMeshBuilder’s GetMesh to draw the geometry.
  • I attached MYMeshComponent as a default subobject to an actor that inherits from CineCamera using SetupAttachment.

Issue:

  • When I drag the CineCamera with the attached mesh, the mesh vanishes during the drag.

I did not see this flickering when I used UProceduralMeshComponent to display the same mesh. Why does this happen?

2

Hello,

Thank you for reaching out.

I’ve been assigned this issue, and we will be looking into the flickering when your component is dragged for you.

Can you please send us a minimal test project that demonstrates this, and include screenshots or video of the issue?

The guide for test projects:

[Content removed]

3

Hello,

Thank you for your reply.

I resolved it by increasing the number of vertices passed to GetDynamicMeshElements().

If I run into any other problems I can’t solve, I’d appreciate your help again. Thanks in advance!

4

Hello,

Thank you for sharing your solution.

Can we close your case? You can always re-open it if you need additional assistance with the same issue.

5

Hello,

Of course. Please close this case! Thank you for your help.