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Here is an example of using a gradient to control the threshold on transparency on Z-axis as explained in this video.

enter image description here

I can animate the location of the colors in the gradient:

enter image description here

But I want to use a grayscale bitmap as a pattern to follow for the transition. This image could work as a "clock" transition.

enter image description here

Here is a primitive attempt with curves:

enter image description here

I can not animate the RGB curves node. Here is a manual animation moving the curves for each frame:

enter image description here

And here is another manual animation using this other texture:

enter image description here

enter image description here

How can I combine a bitmap with a gradient to control the threshold?

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  • $\begingroup$ i am really not sure what effect you wanna have. Can u show a yt video or gif how your wished effect should look like? $\endgroup$
    – Chris
    Dec 2 '21 at 9:25
  • $\begingroup$ I added some animations :) $\endgroup$
    – Rafael
    Dec 2 '21 at 10:18
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You can add a ColorRamp and animate the slider.

enter image description here

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    $\begingroup$ Oh. It was simpler than I thought. Thanks. $\endgroup$
    – Rafael
    Dec 2 '21 at 10:21
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    $\begingroup$ Happy to help, good luck with your project ;) $\endgroup$ Dec 2 '21 at 10:28
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    $\begingroup$ +1 nice with that clock image…and even 3D‼️👍🏻 $\endgroup$
    – Chris
    Dec 2 '21 at 10:37
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    $\begingroup$ @Chris Thanks, gotta make it fun for myself :) $\endgroup$ Dec 2 '21 at 12:32
  • $\begingroup$ That’s why it looks so good!!! $\endgroup$
    – Chris
    Dec 2 '21 at 12:32

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