This seems like a problem to me.  A moment ago I was breaking thru clouds north of KLAS and noticed out of nowhere frames dropped to 25 from GPU being pegged at 99%.  I dialed RS back from my default 130 (always fine on the ground almost always fine in the air) to 110 and voila, GPU use down to 70% and back to steady 30 where it belongs for my vsync to 30 config.

If there is general agreement I can do a zendesk ticket in case someone hasn't addressed this yet which is possible I think for something like this.

Is this possible?  I thought RS can only be applied to the whole screen.  I didn't think you could just pluck certain types of objects out.

I get a lot better results -- in terms of FPS and graphics quality -- by using a higher resolution screen setting and dialing the Render Scaling DOWN than by using a lower resolution screen setting and dialing the Render Scaling UP.

7 minutes ago, David Mills said:

I get a lot better results -- in terms of FPS and graphics quality -- by using a higher resolution screen setting and dialing the Render Scaling DOWN than by using a lower resolution screen setting and dialing the Render Scaling UP.

This is true. I am running at 4k native (100% scaling) and getting excellent performance..  I don't know, but I am guessing we make the gpu work to display the screen all over again with an increased render scaling.

Render Scaling is fine as it is..  there are a few clouds that will drain framerate but those are few and far in between. I also think it would create more issues (if it was even possible) to split up render scaling like that.

46 minutes ago, Noel said:

This seems like a problem to me. 

Nope.  Working as expected.  Render scale affects the whole scene. Reducing from 130 to 110 takes a massive load off the GPU.

 

I've noticed SU6 has increased GPU load and vram use from SU5, and clouds have more of an FPS hit. (specifically overcast conditions)

Edited November 2, 20214 yr by The Moose

1 hour ago, The Moose said:

Render scale affects the whole scene

That makes perfect sense! 

I think I borrowed this idea from reading Rob Ainscough's comments about antialiasing in clouds in P3D.  Perhaps that is something that can 'tag' certain kinds of textures as off limits, whereas RS seems like as you say it won't work for selecting scaling.

Edited November 2, 20214 yr by Noel

2 hours ago, David Mills said:

I get a lot better results -- in terms of FPS and graphics quality -- by using a higher resolution screen setting and dialing the Render Scaling DOWN than by using a lower resolution screen setting and dialing the Render Scaling UP.

I'm not sure I understand what you mean. I'm using a 3440x1440 monitor, and the setting in sim is the same resolution, but I've set the RS to 130 because it gives me a much crisper image. Are you suggesting to increase the in sim resolution to above native, and dial down the RS to 100?

Talking about render scaling, this is an interesting thread https://forums.flightsimulator.com/t/poor-anti-aliasing-with-taa/467397

with 1440p screen resolution of mine, I am doing post processing (secondary scaling with 1.3 aka 1.3x1440p) and render resolution (primary scaling) of 0.75 aka 1440p/1872p. This gives me better results without much of performance hit. Of course, you will to experiment in order to find the sweet spot for your system.

@Rob_Ainscough  Thanks Rob.  The description in the box isn't quite clear to me. 

So it's temporal (TAA) below 100%, and SSAA above 100%.   You may not know this, but what is it at exactly 100%?  Does it do both or neither do you think?

Edit:  Probably figured it out below!

Edited November 3, 20214 yr by bobcat999

5 minutes ago, bobcat999 said:

@Rob_Ainscough  Thanks Rob.  The description in the box isn't quite clear to me. 

So it's temporal (TAA) below 100%, and SSAA above 100%.   You may not know this, but what is it at exactly 100%?  Does it do both or neither do you think?
 

I'm not sure the wording is quite right. Logically, to me, it's TAA at 100% as well.

20 minutes ago, March Hare said:

I'm not sure the wording is quite right. Logically, to me, it's TAA at 100% as well.

Yes, that is what you would expect.  I have experimented with the scaling a lot when on TAA (above, below, and on 100%) and I don't seem to see any significant differences. 

After re-reading the bit outside the red box, I notice it is on about 'recommended' settings, so it would be logical that if you have TAA set, it is on at all settings, including 100% as you say.  It appears it just brings in SSAA above 100% - either instead of, or on top of TAA.

As for scaling effects, below 90% things like the G1000NXi start to loose a bit of readability on mine (smudgy text). 
At 4k on a 4k native display, 120-130 scaling didn't seem to offer any significant improvement, especially for the performance hit - 130% of 4k really works the GPU hard!  

Edited November 3, 20214 yr by bobcat999

30 minutes ago, bobcat999 said:

so it would be logical that if you have TAA set, it is on at all settings, including 100% as you say.  It appears it just brings in SSAA above 100% - either instead of, or on top of TAA.

Definitely. I might have more of a play with different settings. I don't usually change render scaling, leaving it at 100%. I did notice on one of the Q&A streams that Seb (I think it was) seems to tweak scaling down to about 80%... At least, he did at the time I noticed that.

17 minutes ago, March Hare said:

Definitely. I might have more of a play with different settings. I don't usually change render scaling, leaving it at 100%. I did notice on one of the Q&A streams that Seb (I think it was) seems to tweak scaling down to about 80%... At least, he did at the time I noticed that.

There are diminishing returns in using render scaling settings higher than 100%. I keep it on 100% even if I have an RTX 3090 at 1440p because honestly I can't say that the AA or the readability of the instruments improve with higher values. I am very happy with the graphics quality since I disabled AA gamma correction, sharpening, fringe and film grain. 

Anyway the scaling applies to everything on the screen of course. If it didn't apply to clouds, using values higher than 100% would make the clouds appear smaller.

1 hour ago, MrFuzzy said:

There are diminishing returns in using render scaling settings higher than 100%. I keep it on 100% even if I have an RTX 3090 at 1440p because honestly I can't say that the AA or the readability of the instruments improve with higher values. I am very happy with the graphics quality since I disabled AA gamma correction, sharpening, fringe and film grain. 

I totally agree Fuzzy.  This is exactly the same experience for me with the 3080Ti. 
100% scaling seems to be the best, and I have also adjusted exactly the same as you in the user config.