Subject:
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LDGLite 1.0.0 video matrix
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Newsgroups:
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lugnet.cad.dev.mac
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Date:
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Sat, 9 Aug 2003 19:35:13 GMT
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Viewed:
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1933 times
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Don,
I added a table of observations for the various video modes and LD modes
to the end of the message. I put in carriage returns to manually wrap
lines before 80 characters, and everything lines up nicely if you use a
monospaced font.
One last observation to really through things out the window....
The largest screen I could get to work flawlessly in -le mode at 32 bit
colors was 800x537 (429600 pixels). When I tried 798x538 (429324 pixels)
I got problem E. It is strange that a smaller resolution would result in
the problem that seems to be associated with setting the resolution too
high for the ATi driver to handle, but not high enough to invoke the
Apple driver and thus the fix that you made (that is how your fix works,
see Apple driver and disable stencil buffer, right?)
Observations collected on a PowerBook G3(FireWire/Pismo) running OS X
10.2.6
with the standard Apple supplied GLUT.framework installed.
Video Card = ATi 128 Pro (Mobility) with 8 MB VRAM
mode 640x480 (-v3) 800x600 (-v4) 1024x768 (-v5)
16bit 32bit 16bit 32bit 16bit 32bit
-LE ATiGL* ATiGL ATiGl ATiGL AppleGLÝ AppleGL
A,B B A,C,D E,B B,F B,F
-le ATiGL ATiGL ATiGL ATiGL AppleGL AppleGL
A fine A,C E,F F F
-l3 ATiGL ATiGL ATiGL ATiGL AppleGL AppleGL
fine fine C E,fine fine fine
-ld** ATiGL ATiGL ATiGL ATiGL AppleGL AppleGL
fine fine G G fine fine
A = Original view flickers in front of rotating (box) model
B = clear elements render differently after edit
C = Color of window starts of odd. (This happens with some other
programs too.)
Green where gray should be, and fuchsia where white should be.
Rotating model restores proper colors.
D = Trail lines during Rotation
E = Window starts with gooble-dee-goo (mixture of terminal window and
last
ldglite window). View changes don't work, moving window empties it.
After moving window, a redraw calls up the AppleGL driver.
F = A bit difficult to see selection in views 1, 2, 3, and 7.
Selection cannot be seen in views 4 and 5.
G = Window starts with gooble-dee-goo (mixture of terminal window and
last
ldglite window). View changes don't work, moving window empties it
and
calls up the AppleGL driver, but window remains empty. Rotate or
change
view draws model.
*ATiGL = GL version, Vendor ATi Technologies v 1.2.22,
Renderer = ATi Rage 128 Pro Open GL Engine
ÝAppleGL = GL version 1.1, Vendor Apple v1.1, Renderer = Generic
**Rotation is brutally slow, use -l3 mode.
-v800,537 at 32bit colors is the largest window that works without
problems in
-le mode.
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