Corruption of UV mapping for individual points

A problem that occurs frequently, which is very annoying, is that often, one point in a UV mapped surface, where one of the coordinates is 0.0 or 1.0 will jump to the opposite side (0.0 will jump to 1.0, or 1.0 will jump to 0.0). It can happen at any time, even when working on a completely unrelated part of the model. I have to be very vigilant and check every part of the model every day, to see if any of the textured surfaces look corrupted. It’s fairly easy to correct it once the affected surface has been noticed – just go into the UV remapping, select the point that has obviously flown over to the opposite side, and move it back to the correct side. However, there are some surfaces that, a few days later, jump back to the wrong position. A more laborious solution was to change the texture map itself so that no point would have a coordinate of 0.0 or 1.0, but that’s quite a nuisance.

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