Blackmagic Forum

If I paste a PNG graphics file, I know how to make it rotate -- go to the Inspector, in the Transform window, click to make the diamond red, and change the angle etc. etc.

However, if the clip is, say, 10 minutes long, the result of the above method is to cause the entire rotation to occur spanning the duration of 10 minutes.

Instead, what I want to achieve is to get the graphic image to continuously rotate for the entire duration of the clip, e.g. 10 minutes.

How can that be done?

By expression.

Code: Select all

time * speed

(time * 1.5 at example)

Thanks, but that field that appears below the angle dial, I cannot locate that either in the Edit tab or the Fusion tab. I thought it would be in the Edit tab since I am manipulating a PNG file?

Not sure how to use code, since I'm a newbie. I tried copying and pasting it in, but did not seem to produce an effect.

To set up a control to use an expression, right-click the label and choose "Expression." The expression field will appear. You can also type and equals sign ( = ) into the numeric field, and that will also activate the expression.

If you want to connect a control to another control, you can drag the '+' button to the other control, and its name will appear in the field, much like the pick whip in After Effects, if you've ever done expressions there.

Note that you will no longer be able to scrub the control to set its value—it will be controlled only be the math formula in the expression.

Hi, I'm really new at video editing, so when you say "right-click the label", it's not clear to me what is the "label".

I had a go right-clicking everything I could think of as being a label, but didn't come up with the menu item you said. I even searched the Davinci Resolve Manual for the word "label", but didn't figure it out.

The label is the visible text name of the control. In this case, just right-click "Angle", and you'll get a context menu. "Expression" is the last item in the menu.

Bryan Ray wrote:The label is the visible text name of the control. In this case, just right-click "Angle", and you'll get a context menu. "Expression" is the last item in the menu.

I tried that. In the Edit tab, my attempt at right-clicking the words ROTATIONAL ANGLE in the Inspector/Transfor panel does not cause a menu or anything to change.

Right. You're posting this in the Fusion forum, not the Resolve-Fusion page forum, so most people assumed you were asking a Fusion or Fusion page related question. The inspector you're referring to is on the Edit-page, so it won't perform any Fusion-functionality. So I guess you were in the wrong (sub)forum all along.
If you want to do it in the Edit-page I can't help you, since I don't know too much about Resolve.

I can’t think of a good way to do what you are asking in the edit inspector menu.

If you’d asked that on the resolve sub forum I would probably point you to fusion for a solution.

So maybe you ought to think of doing it in the fusion page using a transform.
You already have the answers right here.