Dynamically changing render distance on 1-3 graphics causes lag spikes

Bug Reports Engine Bugs
#1

Huge lag spikes occur for my friend for 2 seconds when the render distance dynamically changes when they are using low graphics.

Tested on graphics 1-3. Maxed graphics would probably turn off the dynamically changing render distance, but would kill their fps anyway.

The user’s computer specs:
Windows 7
AMD E2-3200 APU with Radeon HD Graphics 2.40 GHz
4 GB RAM

Side note, the user has noticed the changing render distance while on graphics 5 on their other computer, but there wasn’t a lag spike, it just happened normally.

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#2

Please attach a microprofile dump that shows the issue. Additionally, please specify the level this happens on.

#3

Ah, right.

Apparently occurs between frame 180 and 210, (possibly because while they’re walking around, the render distance increased to a distance much farther than they should be able to see) but:

I’m trying to upload the microprofiler dump but it won’t send. The html is 47 MB and stops at 1% uploaded and the 7z is just 879 KB but the file isn’t supported to be uploaded by devforum

#4

Upload to Google drive and link that

1 Like
#5

They’re checking for another lag spike but they’re random and we’re not used to the microprofiler yet. Will upload another, hopefully more pinned down

#6

Here’s another spike

image

It happened on 176 and 214 but they say it felt like one big one.

#7

Interesting. I think the large spikes might be because there’s not enough RAM to hold all of the geometry or texture data. This does highlight problematic behavior in our render distance system - on quality level 1, in some camera directions our render distance increases to be effectively infinite because the entire view holds enough parts, but rapidly turning the camera around doesn’t immediately decrease the distance so you have a few frames where you’re rendering a lot of objects…

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