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Largish 2d array for data fails with infinite loop warning but smaller array is ok

Development Discussion Blueprint Visual Scripting
#1

Hi, I am trying to make a large 2d array in Blueprints, but making a struct that has an array of floats, and another struct that has an array of the first struct. This is essentially a 2d array. I am trying to put 1000 floats in the first structs array of floats, and then 1000 of these structs in the second giving a 1000x1000 grid.

The problem I am facing is the editor spits the dummy and says I have an infinite loop, but if I drop the size to 300x300 it is ok, at 500x500 it gives the infinite loop warning again.

I am using UE 4.5.1 (the ark dev kit version). Sorry the image is a bit blurry, I snapped it at home and I am at work now so can’t alter it.

Am I going about this the wrong way. Is there a better way to store a 2d array of data? Ideally I would like to use a bitmap image, and read and set the individual pixels but I am only able to use BP’s in the ark kit.

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#2

4.5.1?

There’s 4.14.2 out there! Soon to be 4.14.3!

#3

You should be able to change the maximum blueprint loop count in the project settings.

#4

Hello,

As Bohrium said you can go to edit - project settings : engine - general settings and set the value of “maximum loop iteration count” to a higher value.

#5

Yeah, but for modding ark we have to use their custom version of ue4 which is based on 4.5.1 which is why I mentioned it, I can’t use solutions for the current versions.

#6

Will that work moving forward with the mod for Ark? Also, am I not sure it is hitting the limit, it says it has detected 1,000,000 iterations but 500x500 is only 250,000 iterations. Any way I will give it a go.

#7

Ok, that setting is not available in the ark dev kit version. Can you suggest any other ways of manipulating an array of data when BP’s are the only option.

#8

Sorry it didn’t help. Not sure for a solution but i would try to do it partially then, you know doing a loop for only half of the array and then a second one for last part. Not sure it would work in all situations.

#9

That’s a good plan, split the creation of the row data into a new function. Cheers