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Linking opacity values with expressions

COW Forums : Adobe After Effects Expressions

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Brian Parchim
Linking opacity values with expressions
on Nov 7, 2019 at 10:43:15 pm

I have a graphic that has "Step 1", "Step 2".... along the bottom to show the steps of an installation. The opacity of the text will be 50% until it is on that step. When it's time for STEP 1, there is a red box behind the text with 100% opacity. When the video goes to STEP 2, I want STEP 1 opacity to drop to 50% and the red box to 0%, and at the same time, STEP 2 opacity to go from 50% to 100% and the red box below that text to go from 0 to 100%.

Is there a way to do this with expressions so I can easily do multiple steps with few keyframes? I currently don't know how many steps I will have in the final product. I wanted to use this across multiple videos so the amount of steps would change.

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