ZBrushCentral

UV unwrapping with keeping the UV-layout shapes possible?

Hello,

I have often to redo my UV’s after modeling or applying surface-noise.

It is easy to redo them with “Use existing seams”, but the shape becomes lost.

I am seeking a method, how to keep the exact shape (like pin border edges) and just having undistorted UV’s for the part inside.

Is there any trick to do this?

See attached screenshots, thanks
UVzbrush before.jpgUVzbrush after.jpg