Preview Window

Example of some preview modalities:

Flat Shading Wireframe
Gouraud Shading ZPhong

Preview modalities that Now3D uses are:

Wireframe
  This is the simpler modality. It comes used for more in order applying to an object all those transformations that demand a refreshment of the immediate image (to move, to ruotare, etc.).
Flat Shading
  Also this modality can be used, like the Wireframe, in order to apply transformations that demand much speed. But to difference of the Wireframe it offers a good vision of the object materials.
Gouraud Shading
  Similar to the Flat Shading, but different in the way to visualize the shading.
Quick Phong Shading
  Suggest to anyone wants to construct Plug-In for one immediate modification in the material of an object, this modality. The only defect is the lacked management some effects of a material (BumpMapping, Transparencies, etc...)
ZPhong
  Modality that better resemble the final result of one RayTracing.