CyberVision PPC 3D GRAPHICS ACCELERATOR BOARD, User Manual, Page: 30 / 40

User's Guide
Environment Variables
CVisionPPCMonitor This environment variable communicates the monitor definition to be
used to the intuition emulation.
Monitor-xxKhz
This environment variable contains all monitor specific settings. These
are resolution, colour depth, line frequency.
HIRESCRSR 1
The Lores-Sprites on non-AA-machines become Hires-sprites (they
are no longer doubled by the Cybergraphics-Software).
0
Lores-Sprites are doubled by the CyberGraphics-Software.
HIDE15BIT 1 Switch off 15bit modes to reduce screenmode list length. The Modes
are still available but hidden.
0 Display all available modes.
SAVEMEM 1
If this option is on, CyberGraphX will reduce memory consumption in
less or equal 16 colour modes, CyberGraphX keeps a planar
representation of the screen bitmap in fastmem and a chunky
representation in video memory.
0 CybergraphX needs more memory but it will be faster.
ALERTEMU 1
DisplayAlert(), the screens you get when the machine crashes, will be
placed on an CyberGraphics screen.
0
DisplayAlert() is displayed on normal Amiga default screen.
CPUP2C 1 The planar-to-chunky conversion will be done by the CPU (in contrast
to the blitter-conversion). Therefore the ugly-looking "planar" blitting-
effects are gone, but the software-conversion is slower.
0 Planar-to-chunky conversion is done by use of the CyberVision PPC.
PLANES2FAST 1 Non displayable planar bitmaps are allocated in fast memory. This
options speeds up handling of planar bitmaps but could lead to
problems with amiga graphics which insist on planar graphics placed
in chip memory. Take care when using this option.
0 Planar bitmaps are left where they meant to be.
KEEPAMIGAVIDEO 1
Amiga display DMA is active even if an CyberGraphX screen is the
front-screen. This is neccessary for multi monitor systems.
0
Everytime a CyberGraphX display becomes frontscreen, Amiga
display DMA is deactivated in order to increase chipmem access
speed.
Other setting could be changed directly in the Tooltypes of the monitor driver found in:
devs:Monitors/CVISIONPPC
Information on how to edit the Tooltypes may be found in your manuals that come with your
Amiga. The following Tooltypes are available:
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