Yes, for sure. We just ran a couple of tests yesterday, and we were able to run 4 x 4Kp30 displays (equivalent to 16 x 1080p30 outputs) while playing 2 x 4K movies. The system was working great.
We hope to do more tests with more displays in the future.
I'm using a new iMac Pro with 3 1080 outputs using the USB-C ports and the apple HDMI dongles. I'm finding that ProRes playback get choppy at times. Files are playing from the internal SSD, but the playback seems to jump every so often. Any thoughts?
This is a very good configuration, and you should not have issue running your 3x1080p60 project with it.
A few questions :
- What is the version of Millumin ? 3.11.k ?
- What is the version of macOS ? macOS 10.14.2 ?
- What is your codec ? ProRes-4444 ? ProRes-422 ?
- If you display the FPS in Millumin (see "Output" menubar") : how the FPS is varying ? Is it stable at 60fps, then drops to 35fps for 10 or 20 seconds, andcome back to 60fps ?
Your issue seems to be related to a bug we submitted to Apple : this affects a few configurations on macOS Mojave 10.14, and this doesn't affect only Millumin but also other softwares relying on GPU (Resolume for example).
We provided a lot of info to Apple engineers, we chatted a bit with them, and now we're waiting for their reply.
Hopefully this gonna be fixed soon.
Could you come back to macOS 10.13.6 and let us know if the problem persists ?
Just a heads up to anyone with an iMac Pro, or even just newer macs in general. There is a T2 security chip bug that hasn't been resolved yet that affects audio input. The bug cuases drop-outs and other intermittent issues that can affect timecode input and midi inputs. The result is video playback that can stutter in an otherwise fine project in a machine that can handle the processing.
I've been working constantly with a audio engineer / technician for the past few weeks and we are yet to find a work around. I will post if we figure something out.
Hey I did get it and installed two days ago. Video side it seams to work great. An occasional stutter here and there but acceptable. Millumin is running at a steady 60fps.
Regarding the timecode, there is a significant audio issue that is present on all OS's on machines with the T2 chip. I've seen with midi timecode as well, watching the midi signal blip intermittently and enough to throw the whole thing into a stuttering mess.
I will be watching it stutter multiple times per second, and then the moment I unplug timecode (timecode freewheel is set to infinite), it gos perfectly smooth. However other times, without changing a single thing, i can get through an hour without noticing a stutter.
To be honest 5 minutes is not enough time to see it. I've gone an hour without seeing it, then it pops up. Unless its some other issue in Millumin, I'm not sure what it could be. Timecode from different sources, different speeds (29.97, 30, DF/NDF), and different interfaces all seam to exhibit the issue. Playback without timecode seams to be acceptable. Muting timecode with freewheel stops stuttering during playback.
I'm running a 2018 iMac Pro, 16 core with the Vega 64 gpu. Three outputs, one 4k canvas going to a 4k projector, and two 1920x1200 projectors that are blended to one canvas. Two 3840x1492 prores 422 video files layered. Anti- aliasing settings have no affect on playback. HAP had constant stuttering. Playback FPS stays holds a steady 60fps, with the occasional drop to 58fps.
Since the bug should come from the "T2 chip" of such Mac, and it affects the audio capture : the timecode should have hiccups, right ?
Could you check in Millumin's device-panel (CMD+K) that the timecode becomes red then green again, then red, ... ? It would confirm that the audio capture has a problem with "T2 chip" computers (and explain why setting the freewheel to 1 second fixes the issue).
Comments
What adapters can I use
now this macOS is in beta but looks stable.
Hello @whataweirdguy,
Best. Philippe