Hello all, 
 

I am using latest P3D v5 version. I have noticed strange issue. I experience huge fps drop while switching from legacy clouds (using REX SkyForce for cloud textures in line with Active Sky as weather engine). EA in P3D on, volumetric clouds on. I have 60 Hz monitor, so I locked frames to 30 FPS. While using this settings I have 30 fps (1 picture) 

However, when I enable volumetric clouds (on Ultra) with other settings unchanged, suddenly the fps drops from 30 to ~13-15 FPS. What can cause this issue? (2 picture)

Legacy Clouds

Volumetric clouds

Using Ultra for VC is the cause of your fps drop. Drop the slider back to Low or Medium. Chances are you will hardly notice any visual differences, but you will get better fps. BTW, I also suggest you go into NVIDIA CONTROL PANEL and set 
VSync to adaptive ( 1/2 the refresh rate of your monitor. )

That will all but gaurantee smooth performance, barring any other settings which might be involved.

 

Sherm

Edited August 30, 20214 yr by shermank

9 minutes ago, shermank said:

Using Ultra for VC is the cause of your fps drop. Drop the slider back to Low or Medium. Chances are you will hardly notice any visual differences, but you will get better fps. BTW, I also suggest you go into NVIDIA CONTROL PANEL and set 
VSync to adaptive ( 1/2 the refresh rate of your monitor. )

That will all but gaurantee smooth performance, barring any other settings which might be involved.

 

Sherm

The important difference between using high, medium or low, is the draw distance between them (on low you will see that you are surrounded by clouds in a very small range, very un-realistic). I run high but with Amortize Clouds ticked. If I approach a fps heavy airport, I switch it to low and un-tick AC. (If you are in clouds and low you won't need too much draw distance). This gives me great fps always.

Just now, SergioN said:

The important difference between using high, medium or low, is the draw distance between them (on low you will see that you are surrounded by clouds in a very small range, very un-realistic). I run high but with Amortize Clouds ticked. If I approach a fps heavy airport, I switch it to low and un-tick AC. (If you are in clouds and low you won't need too much draw distance). This gives me great fps always.

Not disputing you Sergio, but when I use VC, the lower or medium setting does give me better fps and I really do not notice significant visual difference. 

I should add that I have stopped using VC except for ocassional experimentation. With AS and ASCA, plus Envshade,  the sim looks much more realistic to me without VC.

To each his own...one size does not fit all.

 

Sherm

15 minutes ago, shermank said:

Not disputing you Sergio, but when I use VC, the lower or medium setting does give me better fps and I really do not notice significant visual difference. 

I should add that I have stopped using VC except for ocassional experimentation. With AS and ASCA, plus Envshade,  the sim looks much more realistic to me without VC.

To each his own...one size does not fit all.

 

Sherm

Very true 👍

Running volumetric clouds on high instead of ultra gives double the performance on my sim with no visual difference that I can see.  Try high settings and see if it gives you acceptable FPS.