[Interest] Does anyone have Qt3D running on any embedded board?

[Christian Gagneraud]

On 1 August 2017 at 11:46, Thiago Macieira <thiago.macieira at intel.com> wrote:
> On segunda-feira, 31 de julho de 2017 15:54:50 PDT Christian Gagneraud wrote:
>> Texas Instrument Sitara (BBB) and Freescale imx6 are the latest
>> "stable" HW targeted at the embedded/industrial world. I don't know
>> much about the Broadcom SoC (RPI3)...
>
> The error message we saw was that the OpenGL ES driver did not support loops.
> That was an Raspberry Pi, not 3, so maybe it doesn't apply. But I can't tell
> you whether the problem is a hardware limitation or if it's a software one. If
> it's the latter, who's to say that it won't affect other boards with better
> hardware?
>
> [That's what you get for relying on closed-source drivers]
>
> As for imx6, Sean did say it worked for him.
>
>> Anyway, my point was that it should be straight forward to demo Qt3D
>> on these boards. All of them have decent CPU and GPU.
>
> Subject to verification.

RPI3 is definitely a top-of the line product despite costing $35:
http://www.cnx-software.com/2016/02/29/raspberry-pi-3-board-is-powered-by-broadcom-bcm2827-cortex-a53-processor-sells-for-35/

TL;DR: 1.2GHz Quad-core Cortex-A53 (64 bits), with VideoCore 4 GPU.

Previous generation of RPI were quite "shitty", RPI1 was armv5 w/
softfp if i'm not wrong.

iMX6 and Sitara are "old" Cortex-A8/A9, running at around 1GHz.

All of these embedded boards provides OpenGL/ES. The problem is not the
HW, the problem is software setup and packaging, mainly due to
proprietary binary blobs. eg.
https://bugreports.qt.io/browse/QTBUG-62100

>> These are not gadgets, they are cheap boards, that many people use at
>> home *and* at work to demo technologies like Qt.
>
> "Cheap" usually implies "low-end".

Sorry Thiago, but this is completely wrong. You can achieve low price
by carefully selecting your components and mass-production.
Mass-production is actually factor number one.

Expensive doesn't imply "high-end" either.

>
> And again, my point is that I don't see why we should make demos that run on
> low-end devices that can't be used for something meaningful. Make a meaningful
> demo that is a good cross-section of what you can do with Qt3D and what it can
> exercise the hardware for.
>
> If the demo won't run, stop trying to use Qt3D or get better hardware/drivers.

OK, OK. The industry have to catch-up with Qt... right...

Chris

>
> --
> Thiago Macieira - thiago.macieira (AT) intel.com
>   Software Architect - Intel Open Source Technology Center
>
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