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1. Re: Best PBR texture compression and channel layout

   

   Reply by rexo12 · May 2019 · Home› Technical Talk

   My understanding is that this is what's usually done. At the very least that's the default packing for Substance, and most example shaders i've seen use this scheme (although I mostly use UE4). 

2. Re: Best PBR texture compression and channel layout

   

   Reply by almighty_gir · May 2019 · Home› Technical Talk

   Typically i would try to put any kind of binary information, or information that doesn't require a lot of precision (metallic is a good example) in the blue channel, as that is the most heavily compressed.

3. Re: Best PBR texture compression and channel layout

   

   Reply by RacePeaceDay · May 2019 · Home› Technical Talk

   When I tried to pack normal map with other texture, it looked really bad. Default normal map compression looks better. If there are no metallic details, I would pack height instead of metal. Theres no reason to have full-black metal texture for brick wall, for example.

4. Re: Best PBR texture compression and channel layout

   

   Reply by Crimz8n · May 2019 · Home› Technical Talk

   Well, actually I want to keep some flexibility when adjusting metallic factor and that's why I want to keep it there. Also height map should NOT be compressed using DXT1, as I think about that... Isn't height just as important as normal map? For example look how similar they are when using bump instead of normal mapping.…