When I’m working on small sized arrays, there is no problem with the same function. However, since sizes get bigger than tens of thousands, I get this result. Is this a bug or am I missing something?
Hi,
- Does this occur in a clean, blank project with no additional content or is it limited to one project?
- What steps can I take to reproduce this error on my end?
- Have you tried this in 4.11 or have you only tried in 4.10?
Hi ,
Yes this occurs in every project.
To reproduce this, make ForEachLoop with an array length of 300k or more, and add hundreds of instructions to the loop body.
I haven’t tried this in 4.11.
New: I was able to get output from this big array by increasing maximum loop iteration count, however, maximum value of it is 2147483647 and it is not enough. With a ForEachLoop that work with an array larger than ~3 milllion elements, it still doesn’t work. I must be able to break the limits only for this function.
Have you increased the loop iteration limit within the project settings>General Settings?
Yes, it is at maximum now: 2147483647
But I am still not able get output if size of Triangles array is larger than ~3 millions.
If I manually decrease last index of ‘Triangles>For Each Loop’ by using a ‘For Loop’, it works.
Complexity of ‘Triangles>For Each Loop’ is larger than O(n). n is size of Triangles array.
What is the end goal you are trying to accomplish? It seems as though you may simply have reached the limits of what this system can/is designed to do. It was intended for much smaller use cases and not as a substitute for 3D model creation.
I am trying to create normal maps in the editor dynamically. But I think I have to use C++. I didn’t know that blueprint system is designed for smaller use cases. Thanks for your help 
I believe for this it may be best to try in c++ and see if you can get past this limitation. For now I will mark this as answered for tracking purposes. If you receive the same errors in c++, please post here and we can continue looking to see what is occurring.