Scalable Fusion Clip with Video Node

I have a Fusion composition that I originally created at 1920 x 1080. The animation includes a small box with a video clip that is 1920x1080 resolution. I now want to use that Fusion composition in a 3840 x 2160 timeline but can't figure out how to get the video clip to appear in the same proportions in both resolution timelines.

The Image settings of all of my background nodes are set to Auto Resolution. What is the best way to make this Fusion comp adaptable to the resolution of whatever timeline it is used in?

In fusion studio, where originally these features were used, its very simple. It only requires changing resolution of composition and all the "auto resolution" nodes or as they are called in fusion studio "frame format" will update accordingly. There is a little handy script as well, which can be used to make any node of any dimensions in the composition the reference for "auto resolution". This makes it very easy to work.

Fusion page in resolve, is a bit more tricky since that and few other functions are taken over by resolve edit page, and its not implemented in a way that would replace original functionality in fusion studio.

One method involves using fusion clip. Which will conform all clips to timeline resolution but you lose access to source resolution of the media clips. Depending on what kind of work you are doing this may or may not be ideal.

If you are working with self generated graphics, than its pretty good solution. If you are dealing with media clips that you want to keep in original resolution, and also conform to timeline. than its less ideal.

Another method is to use fusion page normally with no fusion clips or anything and set up reference yourself so you link your nodes to one reference node and than update that reference. This requires some extra set up but its workable solution.

I worked out a method to pull timeline resolution using background for media source in MediaIn node, but that requires some set up as well, and I was going to post it here, but I run into some strange problem, possibly related to Resolve 20 beta that I'm using. Height is working but not width. Something is not correct. Its late here so I'll probably look more into it tomorrow.

But yeah, fusion clips are easiest method as you are preparing a comp. If you are already done the comp than that is a bit tricky. I'll have to look into it tomorrow. To see whats up. They introduced layers for nodes in resolve 20 beta, so I'm getting some errors in that regard but I'm not yet sure what is causing it.

P.S.
My favorite node for resizing and fitting differnt aspect ratios letterbox which can resize and fit one aspect ratio to another. I use if often to scale weird aspect ratio graphics in a quick fashion. If you have to do that, that is the tool to look into. As for auto resolution and differnt dimensions, its usually not an issues if you prepare comp in advance and there are differnt ways to do that. But if you have done everything and now you want to change, you can also try to a script for batch changing of parameters.

So you could select all your background nodes for example, and change dimensions in batch.

sshot-1150.jpg (224.5 KiB) Viewed 448 times

Its called Change Batch Parameter. You can find it on reactor or on this page.

https://www.steakunderwater.com/wesuckl ... 401#p13147

PSS.

I think super scale applied to clips in edit page or in clip attributes carries over to fusion. So if you need to double up resolution of clips originally in 1080p, that might give better results than traditional scaling methods. If you don't have to scale up just transform the clip than its not important as long as you didn't change original resolution of the clip.

I'm not sure what you mean by "Fusion clips." Do you mean rendering the Fusion composition and placing the video clip in the timeline?

I'm not sure what you mean by "Fusion clips." Do you mean rendering the Fusion composition and placing the video clip in the timeline?

No. A Fusion clip, as it is officially called, is a special type of nested timeline that changes how clips usually work in Resolve.

The Fusion page doesn't directly use clips from the Edit page. When you open a clip in Fusion, it only carries over Super Scale and lens correction. Other attributes like the timeline resolution, color grading, speed changes, and transform controls are not carried over.

Instead, the Fusion page references a clip from the timeline but sources it directly from the Media Pool. This means Fusion uses the source clip, including its original resolution. This is generally beneficial because you have access to all the original clip's information. You can create effects in Fusion that will later be applied in the Edit page, enabling effects you normally couldn't achieve.

However, some users prefer the same clip they see in the timeline to be opened in fusion. To achieve this, you can first place a clip in either a Compound Clip or a Fusion Clip. You can do this through the right-click menu.

This process creates a new copy of either the Compound Clip or Fusion Clip in the Media Pool. This new clip contains all the original clips at their source resolution, as nested timeline, but the container protects them from outside changes. This allows Fusion to access the clips in a conformed state, meaning they are conformed to what was in the timeline when the clip was created, and they are responsive to resolution changes in the timeline to some extent.

When you make a new compound or fusion clip, automatically a copy of it is added to the media pool so fusion can access it, because despite how it may look fusion need media pool to open the file.

Compound Clips and Fusion Clips differ in how they interact with Fusion and how they package the clips inside them. A Compound Clip is generally better when you want multiple clips in a row on the same track to open as a single clip in Fusion at the timeline resolution.

A Fusion Clip is more suitable for compositing multiple clips stacked on different tracks. Converting these clips to a Fusion Clip and opening it in Fusion will display the same track order as nodes, at the timeline resolution.

Media In nodes in fusion correspond to tracks inside the fusion clip. You can change the order of these tracks by opening fusion clip as its own timeline and doing it there, or even adding new clips as well as reordering them. Or you can change layer number in the MediaIn node to access a differnt tack from same node.


Personally, I prefer to have complete control in Fusion and avoid using Fusion Clips. However, Fusion Clips can be a good option for users who plan to make many aspect ratio changes for different deliverables (e.g., horizontal to vertical timelines), or who want to composite but have limited experience with Fusion's native tools or are uncomfortable using them.

Ah, I see. In my case I created an elaborate animation on the Fusion page that would not have been possible in a timeline. It’s just that I created it at a default resolution of 1080, and when I plugged it into a 4K timeline some nodes didn’t scale the same as others. The most problematic one is a 1080 video clip that I cropped and scaled to fit into one of the animation elements. Think of drawing a TV set then superimposing a video on top of it.

Thanks.

I see. Not sure how the media clip was croped or what the original resolution was, but to keep in mind is that there are some tools in fusion that change resolution of the clip, and others that only scale and not actually change original resolution, simply scale it to fit new dimensions of the background input.

Crop, Scale, Letterbox and Resize tools will actually change resolution, while transform tool and merge tool which also has controls for transformation will not. Plus they concatenate, meaning they pass on the adjustments but don't destroy the original.

Generally if you plan on going back to previous resolution, its best to use transform tool and if you don't have those plans its often easier if not better to use the other tools I mentioned.

There are combinations of both and of course you can always borrow original media from previous place in the flow. Wireless nodes are good for that since they can be used to place original assets when you need them down the line and insert in the flow, but no messy wires and lines.

Usually its a good idea to bring in assets into the flow, and use wireless nodes to use them as you work, once twice or more times. So even if you use something like resize node in one area, you can still easily bring original media , wireless to another part of the comp.