| SHORT FORM | LONG FORM | DESCRIPTION |
| OFF | OFF |
Switch fading off:
colors should become distance independent |
| PLA | PLANE | Use planes as color surfaces |
| SPH | SPHERE | Use spheres as color surfaces |
| CYL | CYLINDER | Use cylinders as color surfaces |
| HALF-SPH | HALF-SPHERE |
Use spheres as color surfaces, but apply
only to the front half of the structure. |
| HALF-CYL | HALF-CYLINDER |
Use cylinders as color surfaces, but apply
only to the front half of the structure. |
| COMMAND | DESCRIPTION |
| fading off | Switch color fading off |
| fading front 4.5 |
Move the front color surface 4.5 angstroms
away from the observer |
| fading back -2.8 |
Move the back color surface 2.8 angstroms
closer to the observer |
| fading half-sph | Change fading to semi-spherical |