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Develop module Linear Gradient - Purpose of moving the vertical line?

Leigh G

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Greetings,

I'm curious....having watched numerous tutorials and experimented myself I am at loss to understand why I might change the position of the vertical line when using a new Linear Gradient mask? Can anyone shed light?

Many thanks,

Leigh
 
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Greetings,

I'm curious....having watched numerous tutorials and experimented myself I am at loss to understand why I might change the position of the vertical line when using a new Linear Gradient mask? Can anyone shed light?

Many thanks,

Leigh
You mean the small vertical line in the middle? That is a handle that you can use to rotate the gradient.
 

Leigh G

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You mean the small vertical line in the middle? That is a handle that you can use to rotate the gradient.
Yep that's the one. But as well as using to rotate, I can move it left and right (which I don't think I could prior to the revamped masking)?
 
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Moving the line sideways moves the centre of rotation. I think it has always worked that way.
 

Leigh G

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Moving the line sideways moves the centre of rotation. I think it has always worked that way.
Thanks. Hmmmm....maybe it has always worked that way.

But I'm still curious! Why would I want to change the centre of rotation....it appears to have little or no affect to the mask unless I am mistaken?
Perhaps there is a use case I am missing.
 
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Of course it has an effect. Imagine changing the centre all the way to the right or left edge of the image… It is not unique however. Changing the centre of rotation is like moving the mask and rotating it at the same time.
 

Leigh G

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Of course it has an effect. Imagine changing the centre all the way to the right or left edge of the image… It is not unique however. Changing the centre of rotation is like moving the mask and rotating it at the same time.
Well...logically it sounds like "changing the centre of rotation" should have an effect....but applying a masks and viewing the overlay then changing the centre of rotation or applying a new mask with a different centre of rotation doesn't appear to let me achieve anything...
But thanks to the previous answers I at least know what the line is for.
 
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Well...logically it sounds like "changing the centre of rotation" should have an effect....but applying a masks and viewing the overlay then changing the centre of rotation or applying a new mask with a different centre of rotation doesn't appear to let me achieve anything...
But thanks to the previous answers I at least know what the line is for.
If you change the centre of rotation, then of course you have to rotate the mask again before you see a difference. I’m typing this on my iPad, so I use Lightroom mobile to illustrate it. First, the normal mask with the centre of rotation in the centre of the mask line:
6316FFBE-90D4-4172-B6B1-98B1D9F95066.jpeg

I rotate the mask:
00B85CE2-75DD-4F18-ADFE-76B356665A12.jpeg

Now I start again, but this time I first move the centre of rotation to the left side of the image:
0098A220-609A-48BC-9E8A-339C2ECD2729.jpeg

And now I rotate the mask again:
C7E7B39B-F1A2-4C03-AE03-4B2E242BF322.jpeg

Do you notice a difference?…
 

Leigh G

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Many thanks Johan, appreciate the time you have taken to demonstrate this.

I now see what you meant by "it is not unique however" as it doesn't allow me to achieve anything I couldn't just by dragging a new mask out from the top left corner (in your last example). I think that's where my blindspot was coming from.....I was looking for it to achieve something I couldn't by other means.

Thanks again.
 
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