How to automate FX bypass on the video master track?

Mindmatter wrote on 3/8/2019, 11:28 AM

Hi all,

I've been scratching my head for over an hour on this one and just can't seem to figure it out...there's no way to add a keyframe for the FX bypass. I can set points for the faders that are present by default ( fade and motion blur) but I just can't make the FX bypass show up as an automatable parameter. I can "add a point" in the FX keyframe lane but nothing happens, no point is generated. I open the "insert / remove envelope menu but again, there's just those parameters that are a.lready there. What am I missing??

Thanks!

Comments

Marco. wrote on 3/8/2019, 11:38 AM

You cannot keyframe or automate the global FX bypass but single FX parameters only.

Mindmatter wrote on 3/8/2019, 12:44 PM

OK thanks Marco! I Wonder why not though. If I have several compositing tracks and I need an FX over all of the global composite output, how do apply a global FX without prerendering that section and applying the FX onto that clip then...?

Marco. wrote on 3/8/2019, 1:13 PM

In this case you'd apply another parent track and apply the FX onto this primary parent.

Or why not apply the FX onto the output?

Mindmatter wrote on 3/8/2019, 1:15 PM

I see, thanks! I never use parent tracks, I just add layers and treat them diffrently as needed. Time to check that out I guess.

Marco. wrote on 3/8/2019, 1:35 PM

This is a demo project which shows how the fx of parent track # 1 will affect the two child tracks # 2 and # 3 but will not affect track # 4.

Mindmatter wrote on 3/8/2019, 1:59 PM

Cool, thanks Marco. Looks like a big timesaver depending on the intended outcome and workflow.

Mindmatter wrote on 3/12/2019, 12:57 PM

I found a kind of workaround. I create a transparent HD template .png in photoshop, which I then import on to the first upper track in Vegas. That way, I can use FX on that track that then superimpose onto all the lower tracks.

Works well with most FX , also the old film FX then affecting all the composited tracks below, but some require actual image information, like the rain on glass FX, which does not work ibn this scenario.

RedRob-CandlelightProdctns wrote on 6/28/2019, 2:27 PM

I have the same need, and can explain why Parent Track compositing isn't an option.

I want to put BCC Rays (or other rays) on a graphic. The graphic is on a 3D track so I can have it "swing" on the z-axis towards and away from the viewer using Track Motion. No problem there. Problem is, the rays go out to the edge of the frame. If you rotate that track, you see the frame-edges (rectangle around the whole thing).

This does not happen if the Rays FX are applied to the master output.

Problem is -- without being able to insert a BYPASS for this effect on the master output, rendering becomes a nightmare. :(

Guess I'll need to pre-render the animated graphic out... again. *sigh*

RedRob-CandlelightProdctns wrote on 6/28/2019, 2:50 PM

example of problem.... note how the rays get clipped on the bottom edge.

example of timeline... tried effect layed on track 2 (the one which rotates) as well as an event FX on the graphic which is on track 2. Applying the effect to the parent composite track (Track 1) causes it to not show the effect at all.

IF I apply the effect to the MASTER Video output, it looks proper. But there is no way to turn it off since we can't keyframe any Effect Bypass on the Master Video output "bus". Also unfortunate, applying to the Master Output means I had to change the effect params to apply in *front* of the graphic instead of *behind* -- since at the master composite level there is no more front or back of the graphic.

ryclark wrote on 6/29/2019, 7:43 AM

Can't you prerender that bit of the video and drop the rendered video clip back into your Vegas timeline perhaps?

RedRob-CandlelightProdctns wrote on 6/30/2019, 7:36 PM

@ryclark That's exactly what I did, then dropped it onto the project(s) with the track "lighten" composite mode.

The problem as stated above, is when applied to the MASTER output the effect must be put in front of the object instead of behind it, since once at the master output level the only "object" is the full screen and putting the effect behind it would show nothing. See the difference in how it looks in the 1st image above and the last... the first is actually what I would have preferred.