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Expression “works” but not as intended.
So I’m working on a rig for work and I’d like a layer to only appear (via opacity) when certain conditions are met and not appear when other conditions are met.
Basically, if a layer moves past a certain point, it turns on. If a certain switch is checked, it turns on, and if another different switch is checked, it turns off.
I’ve done similar things with other layers and it works just fine, but I think here I have too many conditions and AE is getting confused.
Any suggestions? Thanks =D
x = thisComp.layer("OPTIONS").effect("Skelotor Mode")("Checkbox");
b = thisComp.layer("Body Turn").transform.xPosition;
f = thisComp.layer("C_L hand").effect("Force in Back L")("Checkbox");
v = value;if (b < -10) v =100;
else if (x == 0) v = 100;
else if (f ==1) v = 100;else v = 0;
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7 Replies
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Sorry, basically the problem is that the opacity for the layer remains fixed at 100, or if I reverse the values and end with “else if v = 100” it remains fixed at 0.
Also the first if is supposed to be “if (b < -10) v = 100;”
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Figured it out. Removed the multiple “else if’s” and moved the position conditional to the bottom. It looks like this…
x = thisComp.layer(“OPTIONS”).effect(“Skelotor Mode”)(“Checkbox”);
b = thisComp.layer(“Body Turn”).transform.xPosition;
f = thisComp.layer(“C_L hand”).effect(“Force in Back L”)(“Checkbox”);
v = value;if (x == 0) v = 100;
if (f ==1) v = 100;
if (b < -10) v =100;
else v = 0;Better question: I’ve tried arrays before, but I can’t wrap my head around all the time. Would an array be better for expressions like this one?
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Nope! Nevermind, doesn’t work. God damn, sorry for premature replies…
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You could restructure it like this:
x = thisComp.layer("OPTIONS").effect("Skelotor Mode")("Checkbox");
b = thisComp.layer("Body Turn").transform.xPosition;
f = thisComp.layer("C_L hand").effect("Force in Back L")("Checkbox");if ((b < -10) || (x == 0) || (f ==1))
v =100
else
v = 0;
But you might need to revise it based on the priority of your controls. For example, what should happen if both checkboxes are on?
Dan
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Skelotor Mode just brings in a wire frame model and turns off all the assets. I really need to keep this in so the other animators can work with this character rig at a steady pace.
Any condition where “x” == 1 should set opacity to o%
This expression is working better then what I had. Thanks man. I’ll keep tinkering!
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This might be closer then:
x = thisComp.layer("OPTIONS").effect("Skelotor Mode")("Checkbox");
b = thisComp.layer("Body Turn").transform.xPosition;
f = thisComp.layer("C_L hand").effect("Force in Back L")("Checkbox");if (x == 1)
v = 0
else if ((b < -10) || (f ==1))
v =100
else
v = 0;
Dan
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Dan, you are a god among animators. That worked perfectly.
Many thanks!
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