[Stewart Bourke]

Oron,

Particle Illusion from Genarts has some emitters which do exactly this.

[Stewart Bourke]

Phil,

Interesting feedback.

Do you by any chance use Boris BCC with Vegas? I do, and found that BCC’s performance in Vegas was way poorer in 10d. Going back to 10c gave me back my performance. I know my machine is a bit old, but there was definitely a difference between 10c and 10d in terms of performance with BCC..

I have not done proper tests yet, so I am not saying yet where I believe the issue is – this is just an observation, and when I have an opportunity I will make some proper tests…

Thanks

[Stewart Bourke]

John,

Believe me – I have watched (and rewatched) all your BCC tutorials…

My concern is around what happens when I go back into motion track.

For example, I motion-tracked an event. I then decided to render it so I could see the full event running in real-time (still on an older 32 bit machine, so it has a bit of an issue previewing in real-time, and ram-based preview on a 32bit machine has only so much ram available…).

In the render I noticed there were a few spots where I wanted to adjust the key frame, so I open up the event again, go into match-move then scrub to the place where the problem keyframe is.

If I adjust a few frames in the middle of the track, should I still clear render-cache every time I move the scrubber?

Is there any danger that going back into a motion-tracked event and changing a few frames somewhere in the middle of the event will cause problems for tracked frames further down the timeline in the event?

Thanks

[Stewart Bourke]

That was it – thanks – I had it unset as I move between a number of apps on the PC.. I may leave this as it is – but at least I know why this was happening

Thank you.

[Stewart Bourke]

Scrubbing the timeline with any of BCC effects I use enabled causes occasional drop-outs – the event being match-motioned just disappears.

Same thing happens with chroma-key – scrubbing through the event – and the video just disappears from the preview window – disable bcc and it never happens.

I am sure it is something on my machine – I just don’t have time to hunt it down at the moment.. Just wanted to see if rendering in my config had been improved at all…

[Stewart Bourke]

Thank you Mike – duly bookmarked (in stone…)

[Stewart Bourke]

Mike,

Unfortunately this is not how it works for me. I have to delete the nested project from the timeline, then re-add it and the changes are visible. very annoying when tracks are lined up…

I have tried this on several different examples and it always happens.

My machine is XP Pro, SP3, and I am using the 23 bit version. I also tried it with 10d…

[Stewart Bourke]

Wow – I cannot believe I did that… You are of course correct:

Sony Vegas Pro 10c
BCC 7

To summarise – I have a track with an event on it. The event contains footage which has two talents on it – each of which is holding an item that needs to be motion tracked. I would then like to match-move a separate track against each of two motion-tracked items.

Thanks,

[Stewart Bourke]

Ok, after much searching and leaving things until fresh this morning I found out what it is.

if ‘quantize to frames’ is not set, rotation produced weird angles. I guess this is due to the fact that the rotation angle is calculated on the basis of frame boundaries, and so i am seeing things ‘in-between’ frames… I only hope that is the case…

[Stewart Bourke]

Peter,

Thanks for the reply.

I had already tried this, but for some reason I can only get the motion tracker to work when it starts from the beginning of the timeline.

I put a cut about at about 90 seconds into the clip, and then highlighted the cut segment, did my dynamic render, but the motion tracker keeps asking me to move back to put the cursor over a previously tracked piece of footage.