Lightmap object lose texture

ayrin · August 13, 2020, 11:56am

Hello, i have enabled the lightmap on some object and it loose the texture, if i uncheck lightmap texture is back

Leonidas · August 13, 2020, 12:02pm

Hi @ayrin,

Can you post your light and model component settings?

mvaligursky · August 13, 2020, 12:55pm

possibly related to this, try the workaround mentioned please

ayrin · August 13, 2020, 5:16pm

Tried the suggested solution, it doesn’t work, here is the screenshots @Leonidas

Leonidas · August 13, 2020, 5:25pm

Hi @ayrin,

Just to make sure, does your castle.json model contains a second set of UV coords (UV1)? Those are the coordinates used to map the lightmaps on a model.

If not, select that model asset in the inspector and press auto-unwrap:

ayrin · August 13, 2020, 5:34pm

Pressed it multiple times, pressed it again, but still no textures, if i disable lightmap textures get back

Leonidas · August 13, 2020, 5:35pm

Can you prepare a simple sample scene with your lighting and 1-2 of your models that lose their textures?

This will help with debugging it.

ayrin · August 14, 2020, 10:28am

https://playcanvas.com/editor/scene/971526

Leonidas · August 14, 2020, 11:00am

Indeed I can reproduce the issue, enabling Use Metalness in your material seems to fix the problem.

Need to research a bit on this, why lightmaps don’t work with a plain diffuse-only material. @mvaligursky any idea?

ayrin · August 14, 2020, 12:03pm

Yes @Leonidas with metalness at 0 it works unluckly the lightmap doesn’t affect my frame rate