Shadows on CSG surfaces

[Fudsine]

Hello, im having a bit of a problem here I couldnt find the problem I was having on the forums so I decided to make a new topic. Im trying to cast a shadow through a static mesh grate to add an atomespheric feel to the level.

But i end up with this


However the shadows are casting on to static meshs i get a much more desirable result


Is there anyway I can make shadows cast like this onto a CSG surface?


Thanks for your time!
Fudsine

[Grom]

You can, with a bit of experimentation. Select the CSG surface (by left clicking on it so it's highlighted in blue) and then bring up the Surface Properties window. (View > Surface Properties, or press F5)

You'll want to be changing the Lightmap Resolution value. Default is 32x32 so try increasing to 128 or 256 until you have a result you are happy with. Obviously you will get some reduced performance and higher memory usage but no more than if you'd used a static mesh.

[Fudsine]

Thanks a bunch mate

[Xendance]

No, if you want sharper, more detailed shadows, on CSG you have to lower the number. It means lightmap texels per certain area, not the amount of texels on the surface.

[FrozenDozer]

Yeah, its a little bit confusing.

Short:

CSG -> The lower the number the better the shadows (represents texels)
Static Meshes -> The higher the number, the better the shadows (represents texture size)

[Grom]

Whoops, sorry - my mistake.