@pbleopold

No problem. About four years ago I spent three days going absolutely mad trying to figure this exact issue out. The forum pointed me in the right direction and now I include this step in all the shows I make.

@administrators usx @Unseen to add to this, any real time application will generally suffer a big performance hit with SLI or crossfire, unless they allow for some very specific rendering settings, currently I have seen this on unreal engine only. 

These systems were designed with a very narrow render pipeline in mind, one that real time media servers cannot conform to, but some game engines can, even then many games suffer performance loss with crossfire or SLI

Multiple graphics cards in general will also give you a lot of limitations, basically textures generated on one card will have to stay there, this makes things very difficult, the only way that these things really work well is to quarantine things per card, so running a different application (could be a copy of the same one) (or openGL contexts if you have control over that), per card. To this end high end media servers use single cards, just expensive ones and tricks to get around limited number of outputs. There are many options to get large numbers of outputs, and these days a lot of very powerful GPUs available, so in general, stick to a single card unless you have a very specific plan and can deal with the workflow limitations.

Dear bonemap,

Thanks a lot, I will try this.

Best,

mrtz

@lukinem

Unfortunately the guys at Gemalto changed the download link again. Here is the one for:

Windows: https://supportportal.gemalto....
Mac: https://supportportal.gemalto....

Best Michel

@mark could you change the links to gemalto on the Get It page? Thanks.

@woland said:

I'll log this (if I haven't already) and bring it to Mark's attention.

 It is easy enough to 'spin' the Projector actor output 90° but the bezel compensation feature will be good addition.

best wishes

bonemap

@fred Going prores didn't quite resolve the issue. Coming back to the issue of odd bitrates. Do you mean odd as opposed to even numbers or odd in the not coherent sense. Attached is media-info screen capture indicating data for one of the videos. By the way I forgot to precise the After-effects work is done on a windows machine hence the use of Lavf57.83.100

media-info data

@dillthekraut I get it. Thanks for the educating

Just to make sure, check in your energy settings (in system preferences) that  "put hard disks to sleep" and "app nap"  is disabled

Cant say if that is the problem, but they should definitely be disabled just to be safe

@dritter

The spout error is related to internal video card settings, and is something that should be dealt with. 
Although Spout is included with Isadora, the official package will provide 2 executables, a sender and reciever. It might be useful to run these and see if you get the same error.
This error is often related to video card switching, so it may be required to into the nVidia control panel, to the 3D section, and define that isadora.exe only use the dedicated graphics card.
A step further is what Fred recommended, and disabling the onboard video card in the bios. This is not always required, so first test after setting isadora.exe to use only the high performance/dedicated card.

Hello Everyone,

I wasn't able to find the gpu history window in activity monitor (cf screencap)...

I'm surprised that the cpu is only 50% charge.

In isadora, not all processes use gpu.

All my screens are connected to the nvidia geforce 750m.

I have around 80 cycles in isadora with 2 captures and 1 movie only.

Tried h.264 but no increase of fps.. 

Any ideas to help me?

Thank you 😉

Hi Sebastian,

As far as I know you appear to have approached working with displays in an awkward way that might give you grief. There is a simple way of getting four stages to combine on a single display, but not the other way around. It should not be difficult to program 4 Projector actor outputs on 1 stage display to a single device. You might try assigning 1 x display as ‘full’ and then manipulating 4 x Projector actors to configure each video output on the single stage display etc. The designation of ‘left third’, ‘mid-third’, ‘right-third’ is intended for the use with the multi-display device Matrox TrippleHead2Go.

There is a knowledge base article here

There is also a 'grid-chopper' user actor developed by Mark Coniglio here that handles all the math associated with using different resolution media .

Following is an example of a 2 x 2 stage layout on a single external display monitor with a resolution of 1920 x 1200. The video from the shapes actor is a single rectangle with a red line border. Using 4 x Projector actors, 4 lines of video from the Shapes actor output has been composited using the parameters of each Projector actor to modify the scale ('zoom') and horizontal and vertical position in turn ('horz pos' & 'vert pos'). The final result is a 2 x 2 configuration of 4 x video outputs on a single stage and assigned to a single video device through Isadora preferences.

Here is another example that uses 4 x video source files all with different resolutions using the 'chopper' actor to program the cropping of each video stream. Each Projector actor is then positioning the cropped video source along the horizontal position axis. This is using the same Preferences for Stage Set-up as the previous example.

Best wishes 

Bonemap 

@mark_m

@jhoepffner

thanks Mark, the problem is that Nahimic is not listed under the startup Tab in the Task Manager, only under processes. 

thanks

Don

thanks. 

because there is no time I went back to a previous version of my patch, that solved it. 

I actually use a very large .png file (because it's the only way i know to show fotos in rapid random sequences, I pan around the big file, real smooth and 60fps).

the error is much more likely to happen when the scene jumps have a fade time > 0. I assume that means running both scenes and obviously may be problematic.

awaiting version 3 i do not think it's worth the while to check this all out. it may be ok in version 3.

cheers 

h

@craigw, hmm...it might be a sample rate issue, but I don't really want to investigate further, now that we've bypassed the HDMI completely and are just using a DI.  Thanks!

@primaldivine 

Try going Isadora > Preferences > Video > Background Movie Players and unchecking the little box. Does that make a difference?

Jacques, hi!

Thank you!

The issue was that matrox had not give me any 3x(something) option at the beginning.

First I found out that my only HDMI port is connected to my motherboard, not my graphics card (it's a laptop). After that, I managed to create a new custom resolution, 2400x480, the only one that worked, which was a partial solution due to very low resolution. So I ended up with three projectors with 800x480 each.

What I learned so far is that my laptop is not suitable for matrox.

Best regards

@woland for it to run in isadora on my imac i donwloaded this : https://github.com/Vidvox/hap-...

Thanks it's working pretty good!

@ppp586

Happy to help :)

@JamesMajor 

Could you try this: https://support.troikatronix.c...

@michel said:

You don't have to register. The annoying thing with Gemalto is that they change their URL's every few months:Download for Windows: https://supportportal.gemalto.... for Mac: https://supportportal.gemalto.... @Marc can you please make sure that the URLs get updated on the website.

 @mark is away. I'd suggest contacting Xenia or Romain by email