Texture Render Target Cube too dark in UE5

Development Asset Creation
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Hi there,
I am using a render texture target cube to generate several HDR images to use with my interior mapping setup for an architectural night time scene. The scene is using lumen and a directional light for the sun, with a post processing volume, sky atmosphere, skylight , volumetric clouds and exponential fog. The scene renders perfectly well, however when I want to make HDR’s i use a Texture Render Target Cube but the scene appears dark in the texture. Placing a light source in the model brightens the Texture Render Target Cube, making the scene more visible, but why can I not get the render quality from the viewport in the target cube texture?

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11072×496 57.9 KB
(viewport render)
2
21115×705 17.8 KB
(Texture render target cube too dark,unless light is placed in scene)

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I have same problem. This won’t to use post process volume settings. Also cant be adjusted in cube render target settings.

Does anyone know how this can be fixed?

Thank you.

3

Bumping this. I’m having the same issue. Almost seems like the issue is that the render target isn’t factoring in any indirect light. Could this be a problem with Lumen?

4

I actually just finally found the solution to this!

If you have “Capture Every Frame” disabled on the SceneCaptureComponent2D, you need to then enable “Always Persist Rendering State” (in the same details panel). Once you do, the darkness should be fixed. This also allows you to make adjustment to the post processing options on the SceneCaptureCompnent2D.

3 Likes
5

Awesome, thank you so much! Been looking around for over an hour for a solution and this was it in my case.