Cineform AspectHD colorshift in Preview window

[Mike Velte]

I can see a shift in brightness to the darker while playing the timeline, but corrects itself as soon as playback stops. Exports dont show any shift. Colors dont shift.
I have an older P4 HT system with a Nvidia dual head card.

[Blast1]

What video card are you using and what OS

[Mark Weaver]

Kent,
I have been involved with the previous discussions
about AspectHD and know intimately the problem with
the color shift in the preview window. I to filed
a ticket, but have gotten NO response from the support
personal. That said David Newman(Cineform CTO) has been
helpful on this forum. He actually got one bug fixed and released in the latest patch.
Oh yeah, the color shift… This is a pain. I agree
that it occurs and I too didn’t want to believe that it
was a graphics card issue. To some extent it is and it
isn’t. I’ve been using Adobe on this same system editing
DV video for 3 years and NEVER saw the issue with either
Nvidia or ATI cards. As soon as I put AspectHD in I see
the color shift using cineform projects.
I have spent 3 hours trying to adjust the color settings
of the Nvidia cards with no luck. So I put my 3 year old
ATI card back into my system and loaded the latest driver
spent 5 minutes and got much of the color shift to go away.
In fact, I really only see the shift in brightness/contrast.
Very usuable for editing. From my experience this morning
I can definitely say that it is much easier to setup the
ATI card so it might be good to try a new card.

All that being said, I still have an issue with the
actual export being tinted towards the green. Hopefully
I can get this fixed.

Hope this helps!

MBW

[Mark Weaver]

Kent,
Here is the link to my website showing my issues.
I just updated with the settings I used for the ATI
card.

https://www.caribeblueproductions.com/AspectHDIssues.html

MBW

[Tim Kolb]

[Mark Weaver] “Oh yeah, the color shift… This is a pain. I agree
that it occurs and I too didn’t want to believe that it
was a graphics card issue. To some extent it is and it
isn’t. I’ve been using Adobe on this same system editing
DV video for 3 years and NEVER saw the issue with either
Nvidia or ATI cards. As soon as I put AspectHD in I see
the color shift using cineform projects.”

It is a graphics card issue. it happens most evidently on NVIDIA cards. I like NVIDIA cards, but this is definitely one area that drives me nuts.

The issue comes from the preview playback vs full res still image. The card has to switch modes to accomodate the change. Over HDSDI, there is absolutely no shift whatsoever.

You wouldn’t see the issue editing DV as there is no change in decode for paused vs playback,

TimK,
Director, Consultant
Kolb Productions,

Creative Cow Host,
Author/Trainer
http://www.focalpress.com
http://www.classondemand.net

[Mark Weaver]

Tim,
This needs to be documented better by all involved,
Adobe/Cineform/NVidia and ATI. What a complete waste
of a week trying to figure this out when a simple
change to a 3 year old card and a 5 minute calibration
would have made it go away. Wish I had the HD-SDI
monitoring though. That would make this MUCH nicer.
Do you use a AJA Xena for HD-SDI output? What monitor
do you use?
The bummer thing is that I installed the NVidia card
so Magic Bullet for Editors works in near real time.
They apparently write the code to take advantage of the
NVidia card. This ATI card that I have is more like
4X slower than real time. 🙁 Hopefully the version3
of Magic Bullet Looks will play nice with ATI too.

Thanks for the feedback.

MBW

[Kent Smith]

yeah, it’s a pain. I still haven’t been able to get rid of it, and I tried to calibrate the overlay, but I have a different card. I hae the nvidia 8800 GTS (system is dual xeon on a supermicro motherboard), which is a great card. And the issue is ONLY with AspectHD. I do not get a red shift when I edit something in an Adobe HDV project. So I don’t think it’s soley a card issue. When I open 2 windows media windows, and use the same footage, I do see a shift in the first window I open. So there is something going on. But when I try to calibrate the video card, it only allows me to adjust for each monitor…and there is no overlay setting, and no overlay comes up in Nvidia’s search in their help program. So as of yet, I still have never cut a project in an aspecthd program. And I’m not chaning the video card because Aspecthd can’t get it’s act together. The option is still use PPro CS3 and 2.0 in HDV projects.