Track motion weird behaviour in 32-bit floati mode

Lou van Wijhe wrote on 5/25/2009, 1:29 AM

I edit HDV from a Canon HV20 camcorder. When in Track Motion I set the image size to an even number -say 720x540- and try to render in 32-bit floating point mode, I get a white screen. This doesn't happen in 8-bit mode.

When I change it to an odd number -say 719 or 721 wide- I get a normal rendering result. Has anyone noticed this? Is it a bug?

Lou

Comments

farss wrote on 5/25/2009, 3:15 AM

Could you elaborate more please?
Which version of Vegas, which 32bit mode?
Cannot promise how soon I can try to repo this but someone should check this out. I don't have any HV20 footage but I'd be amazed if it was a problem unique to the HV20's footage.

Bob.

Lou van Wijhe wrote on 5/25/2009, 3:21 AM

It noticed it in Vegas 9 and it happens in both 32-bit modes. I just checked it in Vegas 8 and there it is the same.

I also doubt that it is something from the HV20 footage. I suppose it has something to do with the floating point calculations as it doesn't happen in 8-bit normal mode.

Lou

farss wrote on 5/25/2009, 4:32 AM

You've found one heck of an obscure bug!
In V8.0b:
I dropped some 50i HDV footage onto a 720x576 50i T/L.
Changed size in track motion to 720x540, no problem.
Switched to 32bit 2.22 and white screen.
Increased track motion to 720x541, normal vision. At 541, white screen again.
Went back to 720x576. At 577, 578 etc and above no problem.

Changed project to 1440x576 and track motion to 720x576, white screen again.

Submit bug report, give very precise details as, it's very easy to miss unless you hit the right numbers. This bug must have been with us for a long time and it's never been found before.

Bob.

TheHappyFriar wrote on 5/25/2009, 7:22 AM

I submitted something similar to this & it was fixed for me in 8c. At least it works for me (what you described, but with generated media) in 8c. could be 9 code was started off of 8 or 8a & this it still has the bug.

Again, in 8c I can't get the same results you have. It works fine for me. Here's an older thread about it, but much less info.

Lou van Wijhe wrote on 5/25/2009, 7:40 AM

Bug report submitted, will report back.

Lou

Lou van Wijhe wrote on 6/5/2009, 3:22 PM

SCS has been testing this thoroughly but they can't reproduce the error. I suppose this is because of some subtle difference between their system and mine. Luckily, with the editing I do 32-bit floating point is not essential.

Lou

farss wrote on 6/5/2009, 3:46 PM

That's troubling given that at least two of us can repo the problem on our systems.

Bob.

TheHappyFriar wrote on 6/5/2009, 6:49 PM

Ok, I did what Lou said in his post (as best I could):
I made a 1440x1080 project, put some 1440x1080 29.97fps (NTSC land) footage on TL. Changed track motion to 720x540. Played. Worked as expected. Changed to 32-bit mode. Played back as expected. Change to 2.22 levels, played back as expected.

Did what farss said:
Took same 1440x1080 footage, put on SD PAL project. Changed track motion to 720x540. Played fine. Changed to 32-bit, 2.22. Played fine.

My HDV is from a Sony HD1000-U. Could be the footage. Could be PAL footage + PAL TL gives this glitch. I even rendered out some generated media as a PAL HDV 50i clip & used that, no glitch.

EDIT: to see if it's the footage, render out some generated media like I did & see if it still does it.

farss wrote on 6/5/2009, 7:27 PM

OK, more testing.
I rendered some 60i HDV from 50i HDV, repeated tests.

You only see the problem at Best/Full in Preview, the problem only appears in the rendered output if rendering at Best. Change to Good, no problem. Use adaptive preview with Preview set to Best / Full and it's really confusing. Duing playback it looks fine. Once plyaback stops, white frame.

Lou,
you might need to very carefully update the information that SCS have. Unless they are looking at this EXACTLY the right way they will not see the problem.

Bob.

TheHappyFriar wrote on 6/5/2009, 8:03 PM

Yup, doing it @ best/full gives me it now.

I need to use a PAL project though, NTSC doesn't seem to have the issue with the track motion. And it doesn't happen @ PAL DV res, just any even number besides DV res.

I don't have vegas 9, but I'd assume the adaptive preview works because the computer can't keep up with best/full, so it's downresing slightly.

Lou van Wijhe wrote on 6/6/2009, 1:54 AM

Bob,

I sent them a sample project and files. They started by setting up their own project with all parameters differently. I asked them to use my .VEG file but in the end I'm not sure they actually did. After a lengthy discussion and retries I gave up. I just can't go over there and do it myself.

Lou

farss wrote on 6/6/2009, 2:49 AM

"After a lengthy discussion and retries I gave up."

I've had similar experiences with them.

Bob.

megabit wrote on 6/6/2009, 3:06 AM

Out of curiosity, I tried to re-create the problem here in V9-64, and here is what I got:

1. mxf HQ clip in 1920x1080 , 32 bit video levels project; Track Motion size set to 720x540 - all OK

2. changed project to Widescreen PAL: track motion size changes by itself to 270x288, white preview screen!

TheHappyFriar wrote on 6/6/2009, 5:27 AM

I'll submit a bug report & see what happens. Could be they didn't want to use your veg because it could be an issue with your veg in their minds.

TheHappyFriar wrote on 6/8/2009, 6:26 PM

reply I got today:

Lou van Wijhe wrote on 6/9/2009, 10:31 AM

Well, at least they have been able to reproduce the error. Your bug description might have been clearer than mine...

Lou

TheHappyFriar wrote on 6/9/2009, 6:22 PM

just for reference, here's what I told them:
Steps to recreate (you need PAL HDV 50i footage, I just rendered out 10 seconds of generated media for this):

They confirmed the bug & said it will be fixed:
Thank you for contacting Sony Creative Software. Our development team has been able to identify this functionality as a bug. This will be addressed in a future release of the Vegas Pro software. I do not have any release details at this time, however you can stay up to date on updates by enabling Net Notify. Go to Options > Preferences and check the box that says "Use Net Notify to stay informed about Sony Media Software products". Thank you for submitting your information. If you have a completely different question, please create a new incident.