Subtractive Meshes: Enable Tool: Display Options: Double to see backfaces or Insert the Mesh as an additive, move it into place, and then use Tool: Polygroup: Group as Dynamesh Sub to turn it into a subtractive volume. As for why they are displayed inverted, this is intended behavior to make it easy to tell if it's going…
Shorten Curves: In the Zbrush online manual I read that you can extend and shorten curves. I know how to extend curves but I haven't found a way to shorten drawn curves. This seams like an import feature to have. Subtractive Meshes have inverted vertices when drawin out in Dynamesh. This makes it difficult to see how the…