The option to Preserve Transparency limits sculpting changes to only be on the 3D model surface and not 'bleed out' onto the surrounding flat plane.
The custom brush allows you to easily add texture and detail to your composite model. You can also use the dynamic rotation option that intelligently rotates the brush in the direction that you are sculpting. The component brush option can be used as part of the deposit and remove tools, where the brush will leave an impression in the composite model that simulates the pushing of the component brush through the surface when dragging, and a stamping effect when clicking! The Sculpting Tool allows for the option of using any model as a brush for sculpting, giving you an unlimited selection of brush styles that suit your needs. The Sculpting tool lets you interactively modify 3D designs using the sculpting tools with control over brush size and strength, plus options to, This function sets Aspire apart from typical computer modelers as this type of dynamic editing cannot be replicated using standard surface or solid CAD/CAM modeling programs. Models can be manipulated like a piece of virtual clay to smooth out edges and discontinuities, as well as to add extra detail, all helping to create that authentic ‘hand carved’ look for your models. Aspire's powerful 3D Sculpting tools provide total flexibility when modifying designs.