Luoshuang's GPULightmass

[Miguel1900]

@kouropalatisk

Good morning man.
I just tried it with the latest version of UE4 and Luoshs’ GPULM but still no luck.
Can you please upload your modified to have a close look?!

Hi @kouropalatisk ,

I think it’s working for you too. Try putting some boxes and columns inside your room and you will see some shadows.
In the video and in the scene shown by Prizmlzm, probably they are viewing that “edge shadow” because of a less quality configuration of GPULM. If you set a high preset for it, you won’t see that “hard” shadow.

@PrizmIzm

Ha, actually, I was wrong. I just redownloaded your project file and ran a light bake without making any changes and it worked - including the sun light.

You should update to the latest version of UE, there may be a bug with the version you have.

You should definitely use the ‘NoMipmaps’ trick in the future though - you probably noticed that your backdrop got A LOT sharper. UE just won’t render 4k textures at full rez otherwise.

Another tip would be to use this cubemap projection method (below) on your ‘EditorSkySphere’. It will mimic your skylight projection accurately (infinitely distant). The one in the original video you referenced fails because it remains fixed to the inside of the sphere it’s on, so it falls out of alignment with the light bake.

let me know if you’re still stuck.

Hi @PrizmIzm ,

Do you mean that, with that material, your SkySphere is auto-updated with the rotation of the cubemap set inside the Sky? But how?

Regards!