# Vector fields count

**URL:** <https://forums.unrealengine.com/t/vector-fields-count/453771>\
**Category:** C++\
**Tags:** source-code, vector-fields, unreal-engine, question, CPP\
**Created:** [August 12, 2019, 9:49pm UTC](https://forums.unrealengine.com/t/vector-fields-count/453771 "2019-08-12T21:49:22Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![E\_luna\_Awiarera](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@E\_luna\_Awiarera](https://forums.unrealengine.com/u/E_luna_Awiarera)\
**Post date:** [August 12, 2019, 9:49pm UTC](https://forums.unrealengine.com/t/vector-fields-count/453771/1 "2019-08-12T21:49:22Z")

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Yao…  
Does anyone tried to increase vector field count per emitter? I just need about 20+ of them, and it is totally fine when i increase that limit from 4 to 8 and even 9 of them, but something going wrong (engine just won’t launch with usual shader compiler code syntax error) if ts **more then 9** of them… Just like engine does not like numbers of more than 1 digits X) Maybe i must change that limit somewhere else, but can not find any… Can anyone try it? \>.\>

ParticleGpuSimulation.cpp

![284878-c1.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/3/2/f/32fc320415665be378b98ca31b1eaec5f9c16dc1.png)

ParticleSimulationShader.usf

 ![284879-c2.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/e/5/2/e52a3efb8a789505f60fe5bda4f85fb603a44f5d.png)

Please halp \>.\>