Demo of new Vegas features

busterkeaton wrote on 4/22/2004, 8:18 AM
This was posted at DV.com and also buried in another thread, so I thought I would spotlght it here

This is from chaboud who works for Sony.

Here's a quick throw-together that I made by setting a DSR-PDX10 on my coffee table and grabbing some footage of my cat before heading into the office. I have only one white/brown cat, but footage of her was masked/differenced against the sofa and overlayed on footage from a while later that was cropped to account for shadowing on the back wall. All of this was overlayed onto the original background and rendered (without any intermediate renders) in Vegas 5.0.

Two cat composite wmv file.



Title Swirl wmv file


Vegas masking tutorial or how to make two cats

Comments

Nat wrote on 4/22/2004, 9:04 AM
Trying to reproduce this, not easy.
chaboud wrote on 4/22/2004, 9:46 AM
Well, you should be able to download the entire project with media and just render, but it's a somewhat tweaky technique to build from the ground up.

I'll work on getting some images of what I like to work with at intermediate stages, and I'll also look around for previous examples of this trick; I've been doing this one for a while. Vegas 5.0 makes it possible to do this without intermediate renders or custom transitions.

Try shooting a subject with large color differences from a solid background to start (chromakey footage, for example).
Nat wrote on 4/22/2004, 9:48 AM
thanks chaboud

What would be helpful for me is the same example but with static stuff :

A background, same background with object a, same background with object b

I do a lot of chorma keying, but without a green screen I'm lost ;)

Grazie wrote on 4/22/2004, 10:07 AM
Excellent Chaboud! - Downloaded and getting oin with it . .. Your penultimate comments appear to be from one who is very World weary - true? . .. Ah, can't be that bad?

Well, for what it's worth, you've made my day - thanks!

Grazie
Jay Gladwell wrote on 4/22/2004, 11:05 AM
This is excellent! Thanks for the demos. I'd like to see, as I think many of us would, such examples from time to time for other "Sony Vegas" folks at the home office.

I especially liked the swirling titles!

J--
Cheno wrote on 4/22/2004, 11:41 AM
Hey Matt,

any chance of being able to look at the .veg for your text animation? Very, very impressive especially how fluid it looks. I'd love to see the breakdown if possible.

Mike
busterkeaton wrote on 4/22/2004, 11:50 AM
Cheno,

this what Matt posted about the text demo on the DV.com board.

the text demo was created entirely in the default Vegas 5.0 install using the text generator and a lot of 3D motion.
Nat wrote on 4/22/2004, 11:56 AM
"It's a terribly slow way to work, essentially doubling an already hungry project. Had I done this for anything other than the tinkering of it I would have used intermediate renders"

Chaboud, don't you think nested sequences would help this purpose very well ?
chaboud wrote on 4/22/2004, 4:52 PM
Nested sequences wouldn't necessarily cache frame data. Imagine what would happen if each project being treated as media kept a frame's worth of memory (or more) locked up at all times.

Since several of the text events in this project were rather large and blurred, pre-generation of images could have helped substantially.

I'm not saying that nested sequences are bad, but just that they would not give the same benefits as pre-rendering for this particular project. I'll get it posted (or a modified version) some time soon.
Cheesehole wrote on 4/22/2004, 4:58 PM
>Chaboud, don't you think nested sequences would help this purpose very well ?

I have to agree... while nested sequences would save you the trouble of pre-rendering, the performance would be the same as if they were done right on the time line. Anything CPU intensive you'll want rendered and stored on disk.

Unless... the nested sequence had access to its own pre-render cache. Then you get the best of both worlds!
johnmeyer wrote on 4/22/2004, 9:06 PM
Chaboud,

I noticed that you used a project resolution that is quarter res. Is this a trick to make the previews go faster? Can you then set the res back up to 720x480 at the end, just before you render?