15. How To Tutorial # 3: How to change the current rendering level

The current rendering level is set with the Nt_RENDERLEVEL option of the command. See the Nt_RENDERLEVEL options in for further information. The Nt_WIREFRAME option generates wireframe output, the Nt_HIDDENRAS option generates hidden line renderings, and the Nt_ZSCANLINE option generates hidden surface and shaded renderings.

The following snippet of C code shows how to set the different rendering levels:

renderlevel_example()
{
	Ni_Option(Nt_RENDERLEVEL, Nt_WIREFRAME, Nt_CMDEND);

	Ni_Option(Nt_RENDERLEVEL, Nt_HIDDENRAS, Nt_CMDEND);

	Ni_Option(Nt_RENDERLEVEL, Nt_ZSCANLINE, Nt_CMDEND);
}