… did you get from making the bounding boxes dynamic?
i7 4790k, gtx 970, 16 gb ram, 200 shots dynamic bounding box, no noticeable drop in fps from 120ish.
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I7 4790k, 32GB ram, Radeon RX 480
I made a Horrormaterial based on the Explosion with 30 emitters covering a huge area with smoke and switched the AutoMortar to a gattling gun with 500 shots at 0.02 relaod.
WIth this setup i can bring the FPS from 120 down to about 60 in close up, beeing at some distance to the emitter it is stable at 115+ fps.
Close Up Pic attached:
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Negliable, Even on my system 680 GTX, 16Gb ram and an AMD Athalon Phenom II X4 3.4ghz
No impact at all (when I am alone) …
I guess it’s because my PC is new and I spend a lot of money on it.
i76850 OC
GTX 1080 OC
32GB DDR4
I killed it with 3 AI Tanks spamming with a reload time of 0.01 and a rapid fire makro
Thanks for sharing all these 
I am testing on two different computers and on Mac mini which doesn’t meet minimum requirements(because it used integrated video chip) for unreal engine 4 there are interesting results.
I have used Low quality rendering settings and dynamic boxes have no impact even for 100 shots( 30fps in avg) unless I don’t delete Sparks. it’s just crashing after a few shots. The i have tweaked some settings on Sparks and then i could launch 10 shots without crash with 4-5 fps in average =)
No performance hit from me either, I also had to spam these emitters like crazy to get a visible impact. But now that we are at this point, I would like to understand a bit more of the performance tools and I have a question for you guys (or Ben), should be cap the FPS of the game? I usually cap my games at 30 or 60 FPS, reasons well because it has less impact on the target platform and because 30 or 60 are the recommended FPS for visual stuff (like we humans are ok with those framerates and won’t complain about it). I once did a game with 120 FPS and my computer never complained, then I tried playing the same game on a computer with lower specs and the framerates were horrible, the thing is since I always played my game at full FPS when I ported it to another pc with lower specs it looked awful.
i7 4790k, 2 x (gtx 970), 32gb ram, 200 shots dynamic bounding box, no noticeable drop in fps.
No noticeable impact whatsoever on a laptop with i7-6700HQ and GTX 1060.
I had 1 FPS drop when I shot 100 as fast as I could. No difference if I have dynamic bounding box active or not. 120 fps constant to 119 fps constant.
fx 8300 (OC 4.4 GHz all cores)
1050 ti
4 GB ram
I have an intel core i5 processor, 16GB system ram and a Radion RX480 with 8GB video ram. With clicking very fast I managed to get about 150 of these going at once, and saw no difference. I was solidly on 120fps with no noticeable change.
119 to 120 FPS using Intel Core i5-4590 3.3GHz Quad-Core Processor and Radeon R9 390 8GB Video Card.
Tested with 100 projectiles.
GTX1060, tested with 100 projectiles and didn’t see any noticeable impact to FPS (stayed at 120fps).
Very little impact for me, with a capped rate of 120 fps, range of 119-120 fps.
Well, My performence was from over 150 FPS to 50-11 after 600 projectiles depends on how close I’m near the projectiles (GTX 1060, I7)
(btw you can disabled the fps limit in the consol with: t.MaxFPS 999)
I use a laptop - asus rog.
Display - 17.3 inch (FHD, 120 Hz)
CPU - i7 8750H
GPU - gtx 1060 6 gb
RAM - 8 GB (2666mhz)
HDD: SSD nvme.
I used 100 projectiles.
--------------------------- Plugged in ------------------------------
a) 1 tank + No Bounding Box - 120 fps
b) 1 tank + Bound Box - 120 fps
c) 4 tanks + No Bounding Box - 120 fps
d) 4 tanks + Bounding Box - 120 fps
Conclusion - neglijable overhead.
--------------------------- Batery saving mode ----------------
a) 1 tank +No Bounding Box - around 60 fps
b) 1 tank + Bound Box - around 60-70 fps
c) 4 tanks + No Bounding Box - 30-35 fps when all the tanks shoot at the same time
afterwards it rises back to 60
d) 4 tanks + Bounding Box - 30 - 40 fps when all the tanks shoot at the same time
afterwards it rises back to 60
Conclusion - real difference if I am using the battery, which is expected as the performance profile didn’t kick in.