Posted: Wed, 10th Mar 2010, 4:53pm
Post 1 of 12
Obviously I'm ignorant about Vision Lab Studio) VLS. In a nuhell, I made it my business to pay attention to the online tutorials relating to Masking and Chroma Key especially. I even printed out an online segment answering the question of placing background behind green screen footage. Then followed it step by step faithfully.
I dare say I did at least a fundamentally decent job in creating the outcomes I practiced. Good, so what's the problem? Well, when I render my practice videos (which are kept limited to a max of 2 minutes) I end up with only about 20 seconds of video. When I call upon the original file, it runs the full clip. But VLS after editing doesn't. What I overlooking?
Added note: My needs are simple. I produce video for teaching sign language. Chroma keying is used for themed scenes. I may add other effects later to enhance the learning experiences but basically my film needs are quite simple. I got VLS because it can really liven up instruction media.
Posted: Wed, 10th Mar 2010, 6:34pm
Post 2 of 12
I'm led to believe that you placed your in-out frames incorrectly. Take a look at this knowledge base article
. It should help.
Posted: Wed, 10th Mar 2010, 11:27pm
Post 3 of 12
Yep, I suspect FXhome Dude is correct. You need to set the out point to the last frame of your footage. In VisionLab, move the playhead to the last frame and press "o" on the keyboard to set the out point.
"i" sets the In point, "o" sets the Out point, and "p" automatically sets both to the first and last frames, respectively, of your clip.
Posted: Thu, 11th Mar 2010, 12:08am
Post 4 of 12
Thanks to both of you. I will go into the program and try your suggestion tomorrow. I'm currently focused on something else but will definitely try your suggestion tomorrow. Thanks again.
Posted: Thu, 11th Mar 2010, 11:33pm
Post 5 of 12
Oik, I followed your suggestions. The footage was indeed longer but still couldn't render all of it. Maybe it has to do with my using chroma key to produce an invisible subject? I ask because oddly, when I didn't chroma key the same video previously, all of it was rendered. I had rendered it to compare with the output from Vegas 9 Pro, Ulead Studio 12, and Camtasia Studio 6. So i do know VLS can render a longer film. Is it my use of chroma key that is causing missing footage? Dumb question most likely but I'm desperate.
Posted: Fri, 12th Mar 2010, 12:05am
Post 6 of 12
Using chroma key should not shorten your output video at all, as long as the in and out points are set correctly.
Is the render completing, or do you get any message during the render? The render status should complete with no messages and then just kind of disappear. If you get any messages, there may be a problem.
Posted: Fri, 12th Mar 2010, 12:34am
Post 7 of 12
After you render, does the video play back at the correct speed? Incorrect project settings could potentially cause the footage to play back much faster after render, which would result in it being shorter.
Otherwise, is all of the footage playing back on the timeline? If the footage was cropped on the timeline, that would shorten the render as well, so if you can double-check that the entire clip is playing back on the VisionLab timeline that would help narrow down the cause.
Posted: Fri, 12th Mar 2010, 10:10am
Post 8 of 12
First, let me thank you both for taking the time to try to help me out here and your patience with my obvious ignorance about VLS.
1. Error messages during rendering? No. As a matter of fact, after I followed your suggestions the rendering was no longer a quickie job but took much longer as I'd expect it to with a film of that length -- 3 minutes.
2. Playback? After following your suggestions, playback was very different than before. It played at normal speed for about 2o seconds then stopped. But if I hit the play icon, it commenced but still was much shorter than the original video.
What I will do is go back, delete all related files except the original video. Retrace my steps from start to finish, following your advice again very deliberately to be sure I'm not overlooking anything. I was deliberate the first time but you never know so I'm going to do it again. Thanks yet again.
Posted: Fri, 12th Mar 2010, 11:47am
Post 9 of 12
What render settings are you using? It's possible that the whole clip is being rendered, but your computer can't play it back in realtime, and is thus pausing before the end.
Posted: Fri, 12th Mar 2010, 12:53pm
Post 10 of 12
All's well after re-doing everything from A-Z and carefully following you guys instructions.
About playback and my computer, trust me, my computer has no deficiencies in that area. It's a 2 year old Sager Notebook, a true desktop replacement. It has three internal HDs, 512MB dedicated video card, 4GB RAM, 1680X1050 max resolution, Core 2 Quad Q6700 2.66GHz CPU, 17 inch screen, 5 cooling fans married to a massive copper fins and heat pipes, well you get the idea. No one else makes this type of machine. When Sager says desktop replacement, they actually mean it. Thing weighs about 17lbs though. Which is Ok as I don't use it for traveling, opting for a 15.6 Toshiba Techra for that.
In any case, you guys got me educated now and I'm seriously grateful. Now I can proceed to making the instruction media I envision. Otherwise, I'd be spinning my wheels getting nowhere in a hurry without your help.
Posted: Fri, 12th Mar 2010, 1:00pm
Post 11 of 12
Sagerman wrote:About playback and my computer, trust me, my computer has no deficiencies in that area. It's a 2 year old Sager Notebook, a true desktop replacement. It has three internal HDs, 512MB dedicated video card, 4GB RAM, 1680X1050 max resolution, Core 2 Quad Q6700 2.66GHz CPU, 17 inch screen, 5 cooling fans married to a massive copper fins and heat pipes, well you get the idea. No one else makes this type of machine.
Well, unless you build it yourself.
My home machine is quite similar to that, except I've got 2 video cards and a 22" screen - and it's a proper desktop, not a notebook. That kind of spec is still going to struggle to play back lengthy, uncompressed, HD video in real-time at full quality, though.
It's not a slight on your machine's spec, it's simply because HD, uncompressed video is massive.
Posted: Fri, 12th Mar 2010, 1:28pm
Post 12 of 12
Understood. Been playing and working HD video on it without incident with other software. With FX I'm a complete ignoramus as I'm only now putting it into serious use.
About Sager, they're actually gaming machines so resources for them are massive. If curious; http://www.xoticpc.com/custom-gaming-laptops-notebooks-clevo-sager-notebooks-ct-95_51_162.html
especially the NP9280
and NP8120. When these people say desktop replacement, they really do mean it. I've used them for about 3.5 years and can tell you they will handle anything a tower case can in terms of software. The only negative is to keep them cool, they pack all this copper stuff that puts on weight. but if you don't plan to move the machine around much, it's no problem. i like them because of space saving. if I find the three internal drives (mine are 500GB -7200rpm) not enough, I have 4 external Iomega, Samsung, and WD 500GB drives. Got the stuff cheap. Another negative with sager is the Bisoncam webcam has driver issues. For me no big deal as i rarely use it anyway and do have a Logitech webcam if need be.
They have all kinds of ports (USB, eSATA, modem, T1, and other stuff I'd never use but it's there including programmable game buttons. It's like having a Cadillac with Leerjet capacities with you not liking to fly.
All that aside, I'm very happy for your help which also forced me to take a closer look at the various features of VLS while re-doing this project. Thus gaining a greater appreciation for the software. I now feel like a SUCKER because I folded and bought Avid Media Composer 4 (paying only 11% of its actual cost--due to being an educator) only to find out saying the thing is complex is a serious understatement. the user manual is 714 pages long. the interface looks like a space shuttle panel. Now that I understand VLS better, I wish I hadn't installed AVID which was a bear to do as it is picky about what systems it will work with. Fortunately, mine only required me to update my sound device drivers to the latest and let Avid determine its own boot option in Windows during boot up. VLS didn't give me that grief. Oh yeah, Avid being so snotty about what it will accept system wise, it's a tribute to the Sager notebook that it meets the criteria because Avid thoroughly recommends not installing on notebooks. But mine is a true desktop replacement (thank the gods).