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One dimensional property to 3-dimensional
Hi!
I’ve really been trying at this, but can’t figure it out even though I’ve looked at sites like Dan Ebberts’ expressions lab, Creativecow and AE enhancers.
I have a text logo containing 7 letters in separate 3D layers, where I want all of them to follow the above layers’ scale, rotation and position, based on valueAtTime. To achieve this was easy, I used this example from AE help:
thisComp.layer(thisLayer, -1).position.valueAtTime(time – .5)But I want an increase in certain values, so that each layer moves 50px closer to the camera in Z-space than the one above, but no increase in X and Y values. I want to do this with null object slider controls so that I later on easily can change the increase. My problem is that the slider controls’ value is one-dimensional while the layers’ position values are 3D. So how can I translate the value from the slider to increase only the Z-position of the layers?
The same problem occurs if I need to control the scale with a slider control, because I dont understand how to use a one-dimensional value to control 3D values. The slider only scales the xScale of the layer, when I want it to scale in all 3 dimensions.
Thanks,
Espen -
4 Replies
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Like this for z position:
z = thisComp.layer(“Null 1”).effect(“Slider Control”)(“Slider”);
[value[0], value[1], z]Like this for scale:
s= thisComp.layer(“Null 1”).effect(“Slider Control”)(“Slider”);
[s,s,s]Dan
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Hi Dan,
I have a similar issue. I’m trying to create a delay of movement in z space with the following expression:
z = thisComp.layer(“cntrl”).effect(“start layer”)(1);
myOffset = effect(“myOffset”)(1).value * thisComp.frameDuration;
masterDelay = thisComp.layer(“cntrl”).effect(“Delay”)(1).value * thisComp.frameDuration;
sampleP = time – myOffset – masterDelay;
z.position.valueAtTime(sampleP)
how can i prevent the layers that are being delayed from reading the x+y position of the main layer? I tried using your expression above but had no luck.
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Change the last line to this maybe?
[value[0],value[1],z.position.valueAtTime(sampleP)[2]]
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That worked a treat, thanks very much Dan!
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