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May 25, 2009 at 4:28 pm in reply to: Bezier darkening BG plate #217572

Isteve Lee
Participant

@theatomicwonder 28166 wrote:

What did you use to key this? Some Keyers automatically premult the output for you, and some merge operations can handle unpremulted inputs.

I believe it was the IBK Keyer. The footage comes from a CMIVFX tutorial.

April 1, 2009 at 1:59 pm in reply to: How do I shift a clip to start later in time? #217611

Isteve Lee
Participant

Thanks, The Refinery. I’ll have to try that.

March 1, 2009 at 11:53 pm in reply to: BG bleed through FG greenscreen layer #217681

Isteve Lee
Participant

I was able to solve the issue with a Clamp node, per Pete O’Connell @ creative cow.net.
You’re right, rohit, I should also check the alpha with the gain/gamma sliders.

Here are my settings:

February 28, 2009 at 8:41 pm in reply to: Limiting Keying to specific area of shot #217584

Isteve Lee
Participant

That doesn’t seem to help either.

February 23, 2009 at 5:52 pm in reply to: Rotoscoping: Creating holes inside Bezier shapes and making multiple shapes for roto. #217626

Isteve Lee
Participant

Thanks, alienox. 🙂

February 20, 2009 at 1:14 am in reply to: Rotoscoping: Creating holes inside Bezier shapes and making multiple shapes for roto. #217625

Isteve Lee
Participant

alienox,

The Bezier nodes have the same settings. So, is it the stacked order of the Beziers that make Bezier 2 cut out the others?

Thanks.

February 20, 2009 at 1:14 am in reply to: Rotoscoping: Creating holes inside Bezier shapes and making multiple shapes for roto. #217624

Isteve Lee
Participant

alienox,

The Bezier nodes have the same settings. So, is it the stacked order of the Beziers that make Bezier 2 cut out the others?

Thanks.

February 16, 2009 at 6:57 am in reply to: Rotoscoping: Creating holes inside Bezier shapes and making multiple shapes for roto. #217623

Isteve Lee
Participant

@alienox 27589 wrote:

another way would be to go to the color tab on the bezier node and swing the color to black. keeps the tree clean.

I tried that, but it didn’t work. Unless there are other settings to change besides swinging the color to black?

February 15, 2009 at 11:32 pm in reply to: Rotoscoping: Creating holes inside Bezier shapes and making multiple shapes for roto. #217622

Isteve Lee
Participant

Hey chris,
That would be fantastic. Is there a page on the Foundry’s site showing what features are planned for v6?

February 15, 2009 at 10:04 pm in reply to: Rotoscoping: Creating holes inside Bezier shapes and making multiple shapes for roto. #217621

Isteve Lee
Participant

Thanks, bradleyvance. That worked perfectly just the way I wanted it to.

Cheers.

February 13, 2009 at 10:19 pm in reply to: How do I shift a clip to start later in time? #217610

Isteve Lee
Participant

Hi dg,

After much playing around I came across a solution.

I added a TimeOffset node and set it to “10”; which basically “pushes” the beginning of the clip 10 frames later. To that I added a Switch node and keyframed it at “0” at frame 1 and frame 9; which basically turns it off for nine frames. Thus, hiding the “freeze frame”. Keyframed it at “1” on frame 10 where I wanted it to kick in.

With the Switch node I am able to hide the top layer while revealing the BG, as I wanted. I knew there had to be a way. It’s fun learning Nuke. I’m liking it more and more every day.

Thanks again for all of your help.

February 12, 2009 at 6:35 pm in reply to: How do I shift a clip to start later in time? #217609

Isteve Lee
Participant

Hi dg,

I still get frozen frames where I just want to see the BG. I’ve played with the “before” and “after” settings again as well, and still can’t get it to work.

I know Nuke isn’t an editing program, but I’ve been able to offset clips in time in Combustion without a hassle. The process seems convoluted in Nuke.

February 12, 2009 at 1:20 am in reply to: How do I shift a clip to start later in time? #217608

Isteve Lee
Participant

Thanks, doodle.

Can you grab a screen capture of your Retime settings and add it to your next reply? I can probably get a better idea of what to do with that.

February 12, 2009 at 1:13 am in reply to: How do I shift a clip to start later in time? #217607

Isteve Lee
Participant

Hi dg,

I’ve played with the settings and I can’t get it to work. The sequence I’m working with is 40 frames long. I want to trim the FG layer to 20 frames, and have it start at frame 20. But, the FG layer just freezes before frame 20 and starts moving at frame 20. I want to see just the BG layer before frame 20, when the FG kicks in.

I’ve tried different settings for the before and after menus but nothing gives me what I want to see. There’s obviously a workflow to this tool, but I don’t think its readily apparent; at least not to me.

I’m confused. :-/

February 11, 2009 at 6:54 pm in reply to: How do I shift a clip to start later in time? #217606

Isteve Lee
Participant

Nothing is working. I think I have to clarify what I need. I have two scenarios that I often come across:

Scenario #1:
I have a clip that is shorter then the comp itself. I want to have this shorter clip start and end at specific frames, maintaining the full length of the clip itself. In Combustion, I would just slide a “bar” in the timeline to do this. How do I do this in Nuke?

Scenario #2:
I have a clip that is the same length as the comp. But, I want the beginning of the clip to start at another frame and “trim” the end of the clip to match the last frame of the comp, if needed. How do I do this in Nuke?

If someone can share some screen captures of the settings, that might make it easier for me to understand.

Thanks! 🙂
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