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Operators and Keywords

Function List:

C++ API

: lighting (type)

: lighting (hax, type)

Set the lighting of patch or surface graphic objects.

Valid arguments for type are

"flat": Draw objects with faceted lighting effects.
"gouraud": Draw objects with linear interpolation of the lighting effects between the vertices.
"none": Draw objects without light and shadow effects.

If the first argument hax is an axes handle, then change the lighting effects of objects in this axis, rather than the current axes returned by gca.

The lighting effects are only visible if at least one light object is present and visible in the same axes.

See also: light, fill, mesh, patch, pcolor, surf, surface, shading.

Demonstration 1

The following code

 clf;
 colormap ("default");
 sombrero ();
 shading flat
 lighting flat
 light ();
 title ("shading flat - lighting flat");

Produces the following figure

Figure 1

Demonstration 2

The following code

 clf;
 colormap ("default");
 sombrero ();
 shading interp
 lighting gouraud
 light ();
 title ("shading interp - lighting gouraud");

Produces the following figure

Figure 1

Demonstration 3

The following code

 clf;
 colormap ("default");
 pcolor (peaks ());
 shading flat
 lighting flat
 light ();
 view (3)
 title ("shading flat - lighting flat");

Produces the following figure

Figure 1

Demonstration 4

The following code

 clf;
 colormap ("default");
 pcolor (peaks ());
 shading interp
 lighting gouraud
 light ();
 view (3)
 title ("shading interp - lighting gouraud");

Produces the following figure

Figure 1

Demonstration 5

The following code

 clf;
 colormap ("default");
 mesh (sombrero ());
 shading flat
 lighting flat
 light ();
 title ("shading flat - lighting flat");

Produces the following figure

Figure 1

Demonstration 6

The following code

 clf;
 colormap ("default");
 mesh (sombrero ());
 shading interp
 lighting gouraud
 light ();
 title ("shading interp - lighting gouraud");

Produces the following figure

Figure 1

Package: octave

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