3. Template for a Typical NuGraf Program

In most cases a C program written for use with the NuGraf library will look as follows. Sections contained within square brackets are optional for simple uses of the library but in general must be specified for typical programs:

main() {
	Initialize the library
	Define user interrupt handler
	Define confirmation handler
	Define error handler

	[ Define textures ]
	[ Define surfaces ]

	Define objects using built-in geometric primitives
	Create instances of the objects
	Attach the instances together into a hierarchy
	[ Link the surface definitions to the instances ]

	[ Set runtime rendering options ]
	Define one or more light sources
	[ Define one or more cameras ]
	Select the output driver
	Render the scene
	[ Cleanup the library ]
}