SWAP(6T) SWAP(6T)
NAME
swap - demonstrates swapping buffers to display smooth
animation.
SYNOPSIS
/usr/people/tutorial/c.graphics/online/swap
DESCRIPTION
swap simulates drawing an object to both front and back
buffers, and also swapping those buffers. You can experi-
ment with the frontbuffer, backbuffer and swapbuffers Graph-
ics Library routines. There are four main sections of the
window: a help area, an onscreen menu, a representation of
the front buffer, and the contents of both front and back
buffers.
Display Windows
swap has four different windows. The information window
displays instructions for using this program. The console
window contains three menus. Use the top menu to clear or
draw to all enabled buffers, to swap the contents of the
front and back buffers, and to exit from the program. Use
the middle menu to enable and disable the front buffer for
drawing (by default, the front buffer is disabled). Use the
third menu to enable and disable the back buffer (by de-
fault, drawing takes place in the back buffer). Always use
the left mouse button to select items from these menus. The
screen view window is actually an enlargement of the con-
tents of the front buffer, that is, the buffer that contains
the image that you see. The buffers window shows the con-
tents of both front and back buffers. When you enable a
buffer, it is highlighted with a contrasting color.
WINDOW MANAGER
swap runs only in the window manager.
HARDWARE REQUIREMENTS
Your IRIS needs 12 bitplanes of image memory to run this
program.
AUTHOR
Mason Woo
ORIGIN
Silicon Graphics, Inc.
Page 1 (last mod. 8/20/87)