Pixologic has released TextureMaster ZScript for ZBrush. – available as a free download to current ZBrush users.
Based on a proprietary "Pixol" rendering technology, ZBrush allows an artist to paint an image with depth and push/pull sections, create and move lights, change the materials and apply both 2D and 3D effects in one integrated, real-time workspace.
The TextureMaster ZScript simplifies the texturing process and lets users gain
the full benefit of the 3DCopy feature, which enables users to incorporate all ZBrush tools (2D and 3D) in the texturing process.
With 3DCopy, users can apply high-quality textures to any 3D object. You can texture a 3D object created entirely in ZBrush or import a 3D object into ZBrush for further modelling and texturing. The texture mapping method allows a high degree of colour details to be applied to a lower-resolution 3D mesh.