I have a couple of questions regarding the 2:1 unwrap technique showed in the kukri knife tutorial that I hope someone can answer.
I understand that the knife is a rectangular shaped mesh, and unwrapping it inside a single 0-1 UV space is a waste of resolution, and that Substance Painter doesn't support non-square texture, hence the idea of squashing horizontally the uv mapping and baking the mesh maps with that configuration.
My doubts are:
1. Having a squashed map can it cause distortion on baking the normal maps?
2. all of this squash (for baking) -> un-squash (for export) -> squash (when applied by a render engine) could lead to image degradation (like when you apply transformations on an image in photoshop)?
Sorry in advance if my questions are silly, I'm just trying to understand :P
and btw sorry for my English, I'm not a native speaker
Thank you for your time.
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- Nikolay Sych
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Actually I dont really know, but i think it does not, because it kinda stretches our baked maps in 2:1 and then renders all our texture layers on it, so in general you have twice more detail in one texture dimension
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