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Roto Brush and Matte Blending: Can do VisionLab do this?

Posted: Wed, 7th Jul 2010, 7:52am

Post 1 of 7

Haymaker

Force: 1000 | Joined: 11th May 2010 | Posts: 5

VisionLab User

Gold Member

Hi there

I have bought VisionLab a few weeks ago and I am quite happy with what I can achieve with it. However, going more and more into depth and want to do some advanced effects and wonder if VisionLab can do this somehow:

1. Roto Brush:

From the latest After Effects adds I am quite impressed with the new "roto brush" feature. Its basically a mask that automatically outlines and tracks a moving foreground element in your footage. For example, you can just click on an actor in your footage once. Then After Effects not only auto-generates the mask around this actor, but does this for all frames of the footage.

Official Adobe clip on You Tube

This is obviously quite cool. Doing the free hand mask is not as efficient for complex shapes against complex backgrounds where using a green screen was not possible or done for whatever reason. And even worse, manually animating the VisionLab freehand masks frame by frame is as time consuming as it is prone to "jumps" from frame to frame.

So the question is: Is there any way in VisionLab to auto generate a free-shape mask by edge detection in the video footage? Or does anybody know if FX Home plans to add such a feature in future version. I feel this is a key feature one cannot live without today smile


Smoothin blending footage against mattes

I am thinking of having some footage in a nature environment. In this footage I would like to blend the original footage on the left and right side into a digital matte. The following image goes some steps ahead of this but I found no better sample of what I mean. Its from "Pirates of the Caribbean 2" where they blended the original footage of a bridge into a digital matte with more exciting background.

Pirates of the Caribbean 2 Shot

I know how to blend in a matte onto a footage using a VisionLab mask and transparency. However, what I'm looking for is a changing transparency value not over time but across the mask itself. Say on the left hand side of a mask I have full transparency and on the right hand side of the mask I have full opacity. Even better would be a circular (or arbitrary shape) on a rectangular mask that defines the fully transparent area from who's edges the transparency is then interpolated down to 0 at the rectangles edges.

Anyway, is there a way in VisionLab to achieve this smooth blending into a background image across a mask?

Thanks for reading (and hopefully answering) this post smile

regards,
Stefan
Posted: Wed, 7th Jul 2010, 8:23am

Post 2 of 7

Simon K Jones

Force: 27955 | Joined: 1st Jan 2002 | Posts: 11683

VisionLab User VideoWrap User PhotoKey 5 Pro User MuzzlePlug User PowerPlug User PhotoKey 3 Plug-in User FXhome Movie Maker FXpreset Maker Windows User

FXhome Team Member

Those features (particularly roto brush) are pretty advanced and not things that are possible in VisionLab. Sorry!
Posted: Wed, 7th Jul 2010, 9:14am

Post 3 of 7

Haymaker

Force: 1000 | Joined: 11th May 2010 | Posts: 5

VisionLab User

Gold Member

Thanks for your comments. That was what I am afraid of, that the current VisionLab can't do this sad

But the question remains if this would make it into the next version of the software. I can imagine that this would be a unique sales point for VisionLab in this price segment. Being a graphics software developer myself I know that the "roto brush" feature is pretty much advanced but it's, obviously, possible to implement. Now I value VisionLab especially for its competitive pricing tag so I can understand if the official answer is "it won't make it into VisionLab" smile

But as far as the changing alpha value across a simple mask is concerned I think that won't be too complicated to add as a future feature.

Is there a place where a "roadmap" for the FXHome products can be found, containing information such as upcoming version or versions in development and features set for those versions?

regards,
Stefan

By the way, is there the option to develop custom plugins for VisionLab? smile
Posted: Wed, 7th Jul 2010, 9:59am

Post 4 of 7

Simon K Jones

Force: 27955 | Joined: 1st Jan 2002 | Posts: 11683

VisionLab User VideoWrap User PhotoKey 5 Pro User MuzzlePlug User PowerPlug User PhotoKey 3 Plug-in User FXhome Movie Maker FXpreset Maker Windows User

FXhome Team Member

We're always keeping an eye on the latest cool techniques and features, so we're certainly aware of all these things.

There's no public roadmap currently, no. Although if you've been reading the FXhome news page over the last year it should be pretty obvious that we're not sitting around twiddling our thumbs. wink

Custom plugins aren't supported in VisionLab, although you can of course create your own presets for the library: http://fxhome.com/presets/
Posted: Wed, 7th Jul 2010, 11:04am

Post 5 of 7

Haymaker

Force: 1000 | Joined: 11th May 2010 | Posts: 5

VisionLab User

Gold Member

Tarn wrote:

it should be pretty obvious that we're not sitting around twiddling our thumbs.
I would never blame the FXHome team doing so smile

Its just that I only recently got back into filming and even a shorter time since I started using special effects. So this as excuse why I have not been reading the news page over the last year. And I hope you forgive me not digging through all of it now.

Plus, I thought it would be a nice idea to push those features a bit to bump their priority *hehe*

Well, with respect to the plugins I was not referring to something such as the (really cool) presets. I was more thinking in terms of having a software interface to get access to the track data in VisionLab to do a custom processing step on image data, mask objects, and things like that. But I admit that adding such a pluginability requires a lifetime effort if the software is not already designed to make those things available for modification by plugins via well defined interfaces.

Anyway, no rant meant. VisionLab is quite a powerful tool I enjoy using over and over again with a price tag very well acceptable for hobbist (and even semi professional) work.

Of course there is always more to ask. For example, including a 3D object importer (collada, obj, ...), animation paths for those objects and a raytracer (Nvidia SceniX, Mental Ray iray, ...) *cough*

Guess I'd better be off now before I get slayed smile
Posted: Wed, 7th Jul 2010, 11:43am

Post 6 of 7

Simon K Jones

Force: 27955 | Joined: 1st Jan 2002 | Posts: 11683

VisionLab User VideoWrap User PhotoKey 5 Pro User MuzzlePlug User PowerPlug User PhotoKey 3 Plug-in User FXhome Movie Maker FXpreset Maker Windows User

FXhome Team Member

Heh, we always welcome feedback and ideas! Whether we'll be able to implement them all is another matter. smile

Definitely interesting thoughts, though, thank you!
Posted: Wed, 7th Jul 2010, 12:03pm

Post 7 of 7

Haymaker

Force: 1000 | Joined: 11th May 2010 | Posts: 5

VisionLab User

Gold Member

I'm already satisfied if my suggestions get an entry on a list of nice to have features pinned above the software developer's desk's smile