Render Target glitch

Hi everyone,

I’m encountering a problem while drawing on a RenderTarget at runtime in Unreal Engine. Specifically, I’m seeing some strange line glitches that propagate across the RenderTarget, as shown in the attached image.

Here’s what I’m doing:

  • Setup: I created a RenderTarget and a corresponding Material to display the RenderTarget on a mesh.
  • Drawing: At runtime, I am using Blueprints to draw on the RenderTarget. The drawing logic is supposed to continuously update the RenderTarget based on certain inputs.
  • Problem: While drawing, these unwanted lines and artifacts appear and propagate across the RenderTarget, creating a glitchy effect that ruins the visual output.

Unreal 5.4

I am also trying to deal with a similar problem.
I find posts about similar problems more than 5 years ago.
I have not found a solution yet.