ildraw man page on IRIX

ildraw man page on IRIX

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ildraw(3G)							    ildraw(3G)

NAME
     ildraw - selects a previously allocted ilbuffer as the drawing
     destination

C SPECIFICATION
     void ildraw(long buffer)

PARAMETERS
     buffer   expects a value from 1 to the number of buffers returned by
	      ilbuffer(buffers);

DESCRIPTION
     ildraw selects one of the buffers previously allocated by ilbuffer as the
     destination for drawing. Passing a value of 0 deselects the buffer. The
     ilbuffers are screen-sized, and the coordinate system reflects this.
     Viewport should be called after this routine to set the area of the
     screen sized buffer that is being used. Beware of programming errors in
     coordinate systems when copying to or from a windows front and back
     buffers and the ilbuffer.

SEE ALSO
     ilbuffer

NOTES
     This subroutine is available only in immediate mode and on RealityEngine
     systems running 5.0.1 or later.

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