A three dimensional parallax drawing system for use in three dimensional
graphics or virtual reality is disclosed. The parallax drawing system
includes a three dimensional address generator which generates the
original X-axis, Y-axis and Z-axis addresses of an image, and an address
correction circuit for producing a corrected X-axis address in response
to the original X-axis and Z-axis address outputs from the address
generator. Also included is an address selection circuit for selecting
either the original X-axis address supplied from the three dimensional
address generator or the corrected X-axis address from the address
correction circuit as a resultant X-axis address in response to a stereo
graphic mode request signal. A frame buffer address generator is provided
for converting the resultant X-axis address received from the address
selection means and the Y-axis address received from the three
dimensional address generator into the frame buffer linear address. The
X-axis parallax of human eyes relative to all points of an object can be
converted into the X-axis addresses. Thus, once the 3-D image of the
object is projected by separating the left and right eyes' views and
reflecting the corrected X-axis addresses, a more vivid image having a
better perspective of distance can be seen though the LCD shutters.