New graphics engine in NCL

http://www.cadfamily.com/downinfo/292254.html
New graphics engine.
• Graphics are now always displayed in the back buffer only with the front buffer being updated directly from the back buffer.
-- This method does not display graphics as they are loaded or drawn thereby eliminating the flashing effect caused by frequent erasing and displaying of different areas of the screen.
-- All graphics will now appear at once on the screen when a unibase is loaded. This method results in a much cleaner display.
• The Display Buffer Modals form has been updated to match the current methods of displaying graphics.
To access this form choose Defaults -> Graphics Settings -> Display Buffers
• The “Buffer Copy” field determines the style to use when refreshing the graphics.
-- This field has two possible settings (Swap Buffer) and (Pixel Copy):
-- “Swap Buffer” swaps the back buffer with the front buffer. In order to use this mode, the graphics in the back buffer must remain unchanged when swapping the buffers. Most graphics cards on Windows systems support this feature (it may be a setting such as "Force Copy Swap"). Most Unix systems do not support this feature.
-- “Pixel Copy” copies pixels between graphics buffers.
• The “Erase Entity” field determines how a geometric entity is to be erased.