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3DLayers not working anymore

ZBrush Usage Questions
#1

Hi there.

I´ve started a model with a lowpoly basemesh. Saved a 3DLayer at Subdiv Level 1 and after playing around with different levels of subdiv, the 3D layerfunction isn´t selectable after I´ve accidentally deleted the Level 1 basemesh with the stored 3layer. No matter what I do, I´m not able to use the 3D-Layer-System on this model any longer. I think it has something to do because I´ve deleted the lowest subdiv level which had a stored 3dLayer and that it´s only possible to have Layers stored in one Subdiv Level at a time. Any suggestions how to fix this problem and make the 3D Layers work again? EDIT: It seems to be the nature of the layer system that since you´ve deleted the Subdiv Level with the 3d layer, you cannot use it anymore. Tried it on an easier model but I´m just too dumb to fix that :cry:
#2

We had once success with the following workaround: simply subdivide again to the level in question. We had the level there. The critical information about layer is missing in the docs (afaik) that you have to exit the layer before you want to do any layer operation. If you created a layer, you’d working on that layer even if you switched levels, unless you quit the layer on the level you created it.

The other solution is to export each level you have, and rebuild the ZTool level by level, importing the exported levels. That’s cumbersome but 100% efficient.