John Dekron

I have a problem when I try to use jit.gl.slab on a Mac with multiple

graphic cards where monitors are attached. The Computer I use is a Mac

Quad (4*2.5 GHz, 4.5 GB Ram) with three PCI express graphic cards. this

is one Nvidia gforce 7800Gt and two nvidia gforce 6600. as long as

monitors (2) are attached to only one graphic card jit.gl.slab works

just like expected. if I attach a monitor to a second graphic card

jit.gl.slab doesn't operate any more and the following error messages

• error: jit.gl.pbuffer: error binding invalid pbuffer!

• error: jit.gl.texture: error binding readback mechanism for capture!

this happens with the jit.gl.slab.help patch. a shader used with jit.gl.shader still works.

I tested this on a PC with two PCI express cards and everything worked fine.

I also tested this on the Quad computer with Max 4.5.7 and jitter 1.5.2 and it works wit no problem.

hello list,
I have a problem when I try to use jit.gl.slab on a Mac with multiple
graphic cards where monitors are attached. The Computer I use is a Mac
Quad (4*2.5 GHz, 4.5 GB Ram) with three PCI express graphic cards. this
is one Nvidia gforce 7800Gt and two nvidia gforce 6600. as long as
monitors (2) are attached to only one graphic card jit.gl.slab works
just like expected. if I attach a monitor to a second graphic card
jit.gl.slab doesn't operate any more and the following error messages
appear in the max window:

• error: jit.gl.pbuffer: error binding invalid pbuffer!
• error: jit.gl.texture: error binding readback mechanism for capture!

I also tested this on the Quad computer with Max 4.5.7 and jitter 1.5.2 and it works wit no problem. 

jit-gl-slab-not-working-on-mac-with-multiple-graphic-cards

okay. to use those two shaders from 1.6.2 in 1.5.2 I have to copy the 

file sh.passthrudim.vp.glsl as well. now everything works fine for now- 

-I don't receive any mails from the list right now- including my own. so 

please excuse any crossover communication

okay. to use those two shaders from 1.6.2 in 1.5.2 I have to copy the 
file sh.passthrudim.vp.glsl as well. now everything works fine for now- 
except the initial problem still exists.

-I don't receive any mails from the list right now- including my own. so 
please excuse any crossover communication


Please try the 1.6.3 beta posted previously on the list. This fix 

among others is present. I've added the message below for your 

Beta versions of Jitter 1.6.3 for OS X Universal Binary and Windows 

XP are now available for download at the following links. Release 

notes at bottom, but this release will be especially useful for 

anyone using spigot~, Macintosh users with multiple graphics cards, 

and people with stereo 3D graphics cards. Unfortunately we were not 

able to reproduce the reported NVidia 7950 GX2 (multi-core) issues 

using multiple NVidia 7300 cards (which seem to work well, btw), so 

for the time being, we can't claim to fully support this card. There 

may be driver updates which solve these problems, however, and we'd 

be interested to hear of any changes in behavior from users with 7950 

As always please let us know of any problems you encounter and 

include example patches, steps to reproduce, and system information 

with your report. While these versions seem to be pretty stable, as 

always with beta software, it is not recommended for installation/ 

performance work, and recommended that you back up your work before 

installing and more often while working with the software.

https://cycling74.com/download/jitter163b1.dmg

https://cycling74.com/download/jitter163b1a.zip

- jit.gl.render new draw_buffer attribute for use with stereo contexts

- jit.window new stereo attribute for active stereo

- jit.op/jit.expr fix for wrap and fold operators on Intel

- jit.gl.slab fix for glreadback fbo unsupported format errors

- jit.gl.slab fix for multi-GPU, multi-monitor Macintosh systems

- jit.gl.texture fix for issues capturing and sharing between contexts

- jit.qt.movie fix for double loop notifications on first play of 

- jit.qt.movie fix for various stability issues with spigot~

- jitter audio objects fix for crashes when closing patchers with 

- spigot~ fix for XML entity encoding bug

Please try the 1.6.3 beta posted previously on the list. This fix  
among others is present. I've added the message below for your  
convenience.

Beta versions of Jitter 1.6.3 for OS X Universal Binary and Windows  
XP are now available for download at the following links. Release  
notes at bottom, but this release will be especially useful for  
anyone using spigot~, Macintosh users with multiple graphics cards,  
and people with stereo 3D graphics cards. Unfortunately we were not  
able to reproduce the reported NVidia 7950 GX2 (multi-core) issues  
using multiple NVidia 7300 cards (which seem to work well, btw), so  
for the time being, we can't claim to fully support this card. There  
may be driver updates which solve these problems, however, and we'd  
be interested to hear of any changes in behavior from users with 7950  
GX2 graphics cards.

As always please let us know of any problems you encounter and  
include example patches, steps to reproduce, and system information  
with your report. While these versions seem to be pretty stable, as  
always with beta software, it is not recommended for installation/ 
performance work, and recommended that you back up your work before  
installing and more often while working with the software.

OS X Universal Binary:
https://cycling74.com/download/jitter163b1.dmg

Windows XP:
https://cycling74.com/download/jitter163b1a.zip

new features:
- jit.gl.render new draw_buffer attribute for use with stereo contexts
- jit.window new stereo attribute for active stereo

bug fixes:
- jit.matrix fix for memory leak
- jit.op/jit.expr fix for wrap and fold operators on Intel
- jit.gl.slab fix for glreadback fbo unsupported format errors
- jit.gl.slab fix for multi-GPU, multi-monitor Macintosh systems
- jit.gl.texture fix for issues capturing and sharing between contexts
- jit.qt.movie fix for double loop notifications on first play of  
newly-read movie in soc mode
- jit.qt.movie fix for various stability issues with spigot~
- jit.qt.movie fix for memory leak
- jitter audio objects fix for crashes when closing patchers with  
audio on
- spigot~ fix for XML entity encoding bug


jit.gl.slab not working on Mac with multiple graphic cards