Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!voder!pyramid!ncc!alberta!idacom!danny
From: danny@idacom.UUCP (Danny Wilson)
Newsgroups: comp.sys.apollo
Subject: Color Graphics
Keywords: planes?
Message-ID: <677@idacom.UUCP>
Date: 3 Jun 89 20:14:51 GMT
Organization: IDACOM Electronics Ltd., Edmonton, Alta.
Lines: 39

I am trying to display a file generated from a ray tracing program
on a DN3000c.

Using SR9.7 and our somewhat outdated documentation (9.0)
we do a gpr_$init with gpr_$borrow and use gpr_$write_pixels
to generate the image.

However, I am confused about the color capabilities of this system.
The manual states that you can use gpr_$set_imaging_format
to select between different number of planes for colors.

But all calls to this routine fail with a bad status code.

Question: How many planes of graphics do I have on this machine
(and how do I tell, if it is configurable) Is is possible to 
display the high-quality images without any special HW etc??

Notes:	SR9.7, DN3000 color node purchased as a 'BoardStation' from
	Mentor Graphics

/com/netstat -config reports:

  NODE CONFIGURATION
    Node Type:  DN3000
    Display type:  1024 x 800 color display
    68881 Floating Point Unit present.
    Peripheral configuration:
        Disks:  winchester
        Networks: Ring
        Peripheral bus:  AT-bus
        Tapes:  none
    Disk types:  MSD-170M  

Thanks,
-- 
Danny Wilson
IDACOM Electronics		danny@idacom.uucp
Edmonton, Alberta		alberta!idacom!danny
C A N A D A