why I have Black stains on geometry ? I tried high setting but its there anyway

[anonymous_user_5127d773]

Hello !
you can see on the image , I can’t get rid of those (
take a look at UVs maybe problem is UVs
in other words I need an advice

thanks

[Stephen_Ellis]

I’m not sure of the specific reason, but I suggest reviewing this guide and trying the various suggestions: A new, community-hosted Unreal Engine Wiki - Announcements and Releases - Unreal Engine Forums

Cheers

[darthviper107]

Some issues are due to low resolution lightmaps, but in other cases it would be caused by surfaces on top of other surface which create shadows that will bleed around the object.

[anonymous_user_5127d773]

@Stephen Ellis;675361

I’m not sure of the specific reason, but I suggest reviewing this guide and trying the various suggestions: A new, community-hosted Unreal Engine Wiki - Announcements - Epic Developer Community Forums

Cheers

thank you for help very interesting topic link there

[anonymous_user_5127d773]

@darthviper107;675483

Some issues are due to low resolution lightmaps, but in other cases it would be caused by surfaces on top of other surface which create shadows that will bleed around the object.

Hello !

regarding low lightmap res

well I have minimum 256 in some objects its 512 and 1024
it eats up 15 gb of my memory , are you sure its all about resolution of lightmaps ?

very interesting is that you didn’t say anything about UVs , so you think they look correct ?

P.S

by the way I tried to increase everything to 2048 , and scene colour turned to red (super high res)
and UE crashed due to memory lack , so you think 32gig machine can’t handle that building to compute it without light/shadow stains?

[darthviper107]

Don’t turn up the UV’s to 2048, that won’t be necessary

Lightmap resolution is definitely an issue though, some of the boxes are only a few pixels on a side which is not enough. As for the UV’s, the pillars are OK but you’ve split it up more than is really necessary, it’s best to have as few seams as possible and have a low amount of stretching.

[anonymous_user_5127d773]

@darthviper107;675526

Don’t turn up the UV’s to 2048, that won’t be necessary

Lightmap resolution is definitely an issue though, some of the boxes are only a few pixels on a side which is not enough. As for the UV’s, the pillars are OK but you’ve split it up more than is really necessary, it’s best to have as few seams as possible and have a low amount of stretching.

you think one UV shell for collumn will be better solution than 2 shels like in my case . right ?
again when I’m increasing resolution to (red) amount it crashes says no memory (

by the way I’m pushing only “build lighting only” button , might it be issue ?
is "build light only " enough to bake maps ?

thanks again for your time

[anonymous_user_5127d773]

@darthviper107;675526

Don’t turn up the UV’s to 2048, that won’t be necessary

Lightmap resolution is definitely an issue though, some of the boxes are only a few pixels on a side which is not enough. As for the UV’s, the pillars are OK but you’ve split it up more than is really necessary, it’s best to have as few seams as possible and have a low amount of stretching.

you think one UV shell for collumn will be better solution than 2 shels like in my case . right ?
again when I’m increasing resolution to (red) amount it crashes says no memory (

by the way I’m pushing only “build lighting only” button , might it be issue ?
is "build light only " enough to bake maps ?

thanks again for your time

take a look at this example - (according to what you said about pixelization) he also have few of them but have no stains