Are you using Forward Shading Renderer? Rect light does not work with forward shading (you can check if you are using forward shading by searching it in the Project Settings)
It’s impossible to replicate the issue with the info you provided. Provide some steps to replicate the issue, some images, etc. Right now it’s only possible to guess: are you using Lumen? Are you using movable or static/stationary lights?
hey there, I can definitely confirm having the same issue with 5.1
I made a post about it too, as far as I know there’s no fix yet… very annoying, in automotive lighting I’m relying on RectLights a lot, this is basically breaking a lot of my scenes.
I’m glad I’m not the only one experiencing this. I’ve recently submitted a bug report about it to Epic Games after having gone back and forth between 5.0 and 5.1 to double-check all the settings. Let’s hope they fix it in the next update.
Same problem here. If I apply a source texture, the rectlight emmits a kind of average of the texture as light. you can not see the texture. i have 5.1.1 installed.
everything is working as expected in 5.0.3 … Has someone a suggestion how to fix this?
I have now gotten a reply from Epic stating that they could replicate the error. But also, I shouldn’t expect it to be prioritized (which I think they write to everyone). So fingers crossed it will be fixed in the next update. It should be a simple fix since it already worked in 5.0.
Great. In fact, the bug report link I posted, is now marked as Fixed, so maybe it’s already ready to come in the next 5.2 release (even if it says to be expected for 5.3)
also Just confirming that from my end, 5.1.1 doesnt do rec light source textures for me at all.
similarly, I work in automotive field, and this one break actually makes Unreal 5.1 completly unusable for any of our design work.
(you basically use rec lights with textures exclusivly when studio lighting cars) .
this one is a major ball drop on Epics acount.
further more, to make it worse,
it was working in 5.1 ( did a whole project in it)
then Unreal auto updated to 5.1.1 and it stopped working,
Actually , Id like to update my last response,
for 5.1, I found that as long as the texture is 8bit and jpg,
it seemed to start working again for me. though i understand this doesnt fix things for people wanting the 32 bit tiffs or exrs to get the detain in the light texture, it is a bandaid until a proper fix comes around