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If else loop not working in Text Source
Trying to create an error dialogue for a template using a text layer that appears if a critical layer is missing.
Currently I have this:
BG = "Background_Layer missing";
PoV = "PoV_Mover missing";if(thisComp.layer("Background_Layer") == null){
BG;
}else if(thisComp.layer("PoV_Mover") == null){
PoV;
}else{
"ERROR";
}When I delete one of the critical layers, the text source only displays whats input into the text source not dynamically based on the condition like I want. Any ideas?
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4 Replies
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There are probably better ways, but I’d try something like this:
BG = "Background_Layer missing";
PoV = "PoV_Mover missing";
msg = "";try{
temp = thisComp.layer("Background_Layer");
}catch (e1){
msg = BG;
}try{
temp = thisComp.layer("PoV_Mover");
}catch (e2){
msg = PoV;
}
msg
Dan
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Interesting. So that does work, but I want to know why. Is it an order of operations thing between if/else and try{catch}, where try is processed before a typical if/else loop would?
Thanks for the help Dan. Glad to see a familiar face still here.
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Referencing a layer that doesn’t exist generates an expression error, try/catch traps such an error. That’s about it.
Dan
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Ah, makes sense. Thanks for the explanation.
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