sampleImage bug (or user error?)

Forum|Forum|10 months ago
June 9, 2025
1 reply
228 views

Hello.

I am trying to dyamically return the color value of a text layer based on the color value of the layer underneath its position (which is a video). This is my expression. It is applied to the Source Text of the text layer. All I get is [0,0,0,0] no matter where the text layer is location within the composition.

sampleImage(transform.position, radius = [8, 8], postEffect = true, t = time)

It is this a bug or ... user error?

Evan

Correct answer Dan Ebberts

If you're trying to sample the layer below the text layer in the layer stack, I'd try it this way

thisComp.layer(index+1).sampleImage(transform.position, radius = [8, 8], postEffect = true, t = time)

:

Dan Ebberts

Correct answer

Community Expert

If you're trying to sample the layer below the text layer in the layer stack, I'd try it this way

thisComp.layer(index+1).sampleImage(transform.position, radius = [8, 8], postEffect = true, t = time)

:

E

Evan_MatherAuthor

Participant

Thanks Dan. That did the trick.

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