Reference for the value of "X position" in "Transformation" of "Inspector"


What is the standard for the "X position" values ​​"X" and "Y" in "Transformation" in the "Inspector"?

I want to put a still image or video on the timeline and change the display position, but I can't change the position as I want even if I enter a numerical value.


The value that can be specified with "X position" in the transform of the inspector, how far it moves on the timeline preview is determined by the following three points.
・Resolution of the timeline
・Resolution of the clip to be transformed
・How to import the clip to be transformed into the

I made a video because I think it's hard to understand in words. I would appreciate it if you could refer to it.

Also, the text.

First of all, I hope you understand that it is not simple.

It's hard to explain without an example, so I'll give you an example.

I will start my explanation on the 1920×1080 timeline.

DaVinci Resolve has a function for how to align when capturing still images and video that do not match the timeline resolution. Right-click the timeline in the media pool, select [Timeline]-[Timeline Settings], and switch on "Resolution mismatch". This time, we will use “Match Longest Side, Insert Black Strip” (Fit horizontally for longer odds).

I placed a still image with a resolution of 320 x 320 there.
The same result is obtained for video. Due to fit display, the resolution of the material and the resolution on the timeline are different.

The timeline resolution is 1080x1080.

I hope you can understand up to this point.

In DaVinci Resolve, each clip placed on the timeline has a coordinate system that has the same number of vertical and horizontal sizes as the resolution of the timeline.

Here, we will call it the clip coordinate system.
The clip coordinate system is used as the reference when moving each clip with the "X position" in the transform of the inspector.
The orange clip has a timeline resolution of 1080 x 1080, but the clip coordinate system has a resolution of 1920 x 1080.
The vertical dimension matches the timeline resolution, but the horizontal dimension should be treated as 1920 for a timeline resolution of 1080.
To move 1080 minutes in the timeline resolution in the X direction, set it to move 1920. If you have graph paper with a narrow X direction and 1080 squares vertically and 1920 squares horizontally, you can think of it as a perfect square.
Since the distance on the timeline for 1 memory and 1 unit changes vertically and horizontally, each axis direction on the timeline when moving the same amount in X and Y with "X position" in the transform of the inspector movement amount will be different.

Now let's move on to the calculation method.
The timeline resolution for the space to the right of the orange clip will be 420.

To move the right edge of the orange clip by 420 minutes of timeline resolution, calculate what to enter in X for "X Position" in the Transform in the Inspector.

Replace the timeline movement distance 420 with the distance in the clip coordinate system.

Multiply the distance moved on the timeline by the ratio of the distance moved on the timeline to the unit distance in the clip coordinate system.

In this case,
(1920/1080) x 420 = 746.666

If you actually move it, you can confirm that it is correct.

After explaining so far, what is this specification, even if you know it, it is not likely that you will calculate it and use it during actual editing work? Rather than that, I think that it is often adjusted visually by enlarging the timeline preview.

I think it's good to just understand what the specifications are.

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