Hey :wave: Is there a reason the aoMap uses the second UV channel? In other PBR applications, like in Unreal Engine, the AO Map uses UV channel 1, like normal maps, albedo maps etc. I understand why lightMap uses the second UV channel, as this is usually used to show how the mesh is lit within an…

Why does the AOMap use the second UV channel?

Mugen87 April 22, 2021, 11:14am 2

This is explained in this thread:

Topic		Replies	Views
Why do AO and LightMap need a second set of UVs? Questions uv-mapping , lightmap	9	5410	October 13, 2020
Is it possible to use the second uv channel for the normal map? Questions textures	2	776	November 19, 2019
Change Mesh map except of AO map which has two uv map Questions textures , materials , uv-mapping , ambient-occlusion	2	509	May 17, 2023
How to use AOMap Questions textures , materials	7	5151	October 18, 2023
How do I apply a light map texture? Questions textures , materials , loaders	4	4409	July 13, 2022