[Request] Switch on Type node with Array input, auto output.

[ThePassenger]

Hi. So i hit a wall today and i thought it would be cool to have this kind of functionality for improving the data driven workflow.
Let’s assume i have an array of file names and i don’t like to type each output value manually, this kind of node would help a lot!
What’s your opinion on this?

AnswerHub link:
https://answers.unrealengine.com/questions/99344/request-switch-on-type-node-with-array-input-auto.html

[Marc_Audy]

Tying the number of output pins to the number of entries in the array isn’t really viable because as far as the compiler really knows you just have an array input. We’ve avoided trying to trace back through the network to figure out the “literal” value that is coming in because every change anywhere in the graph could theoretically impact it and so the cost of updating nodes when connections are made would be very high and if you connected it to a dynamic variable we need to have a desirable behaviour as well.

For this case I could see perhaps having a version of the String and Name switch nodes where the labels are provided dynamically as you’ve shown here, however, the number of output pins would need to be manually set. I’ll mention it to the team and see what others think.

[ThePassenger]

@Marc Audy;144389

Tying the number of output pins to the number of entries in the array isn’t really viable because as far as the compiler really knows you just have an array input. We’ve avoided trying to trace back through the network to figure out the “literal” value that is coming in because every change anywhere in the graph could theoretically impact it and so the cost of updating nodes when connections are made would be very high and if you connected it to a dynamic variable we need to have a desirable behaviour as well.

For this case I could see perhaps having a version of the String and Name switch nodes where the labels are provided dynamically as you’ve shown here, however, the number of output pins would need to be manually set. I’ll mention it to the team and see what others think.

Thanks for the reply.
Non modifiable array size and array values in runtime is of course a must for this type of node. I also thought about similar Get from Array node, where input pin would take an Array and output pins would return the values. Anything similar would be great!