koobas.hobune.stream
2 UVs set and need lightmap UV slot
Hi, I want to know how can I do to put a lightmap on one of my material which has a shader using already 2 UV slot ?
If someone got some tips with that ?
Thanks.
At the moment you can not have more than two UV sets in Unity. So solution is either to use first UV1 for what you're using UV1&UV2 (i.e. they have to be the same), or simply do not regenerate UV2 and use it for lightmaps (in this case UV2 has to be 0-1 bounds and has to be non-overlapping)
Unity can generate UV2 for lightmaps or you can import UV2. So I was suggesting that you can try reusing UV2 for your effect and lightmaps as long as it suitable for lightmapping.
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Edit with previous answer : Unfortunately, our 2 UV1 & UV2 don't have the same tilling/offset so your first solution is impossible. Then the second I don't really understand what you mean ?
Ok. I understood but my texture in UV2 need tilling and offset. And my lightmap got her own tilling/offset (in prefab information) so I think not I can do this solution too :/. This problem really stuck me é_è
Another solution could be packing one of your UVs into Tangent or Color channel (assu$$anonymous$$g that you're not using it for something else).
Normal$$anonymous$$ap using tangent if I don't misunderstand me. SO maybe color channel can be used. I never do something like that, did you have some example to quickly show me the idea ?
