Chapstick

V4 dynamic lighting FPS hit

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Anyone else find that the new dynamic lighting on the Queen in V4 is a huge hit to FPS? For me it cuts my FPS in half. I'm on a i7-4770k and a GTX 970; I'm curious to know what other people are seeing. Definitely keeping it off for now.

Alex Pugh

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Same problem here with i7 6700K  and GTX1080. going from 35/40 to 20....

Infortunaly not a very good addition in term of performance...

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Yes I see the same. 4790K @ 4.5GHz / GTX1080 / 16GB RAM - Turn on landing lights and bam! 40fps becomes 20fps. This may be more of a LM issues than a PMDG one however.

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What are your ingame AA settings set to? Curious because with A2A 172, anything higher than 4xMSAA, particularly anything SSAA was a huge drag with Dynamic Lighting. MSAA was ok. 

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2 minutes ago, SolRayz said:

What are your ingame AA settings set to? Curious because with A2A 172, anything higher than 4xMSAA, particularly anything SSAA was a huge drag with Dynamic Lighting. MSAA was ok. 

I found the same thing with SSAA so I've had it set to 4x MSAA since launch.

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Im running @4k with my refresh rate locked at 30. With everything maxed out I was getting a steady 30 FPS. In the 747 I get about 15. I will try turning off the Dynamic Lighting.   7700K, 16gb DDR4 2666 and a GTX1080

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It's a bummer... I was looking forward to P3D finally getting a real lighting engine. 

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Yep dynamic lighting your fired...even during daytime turning on landing lights slaughters fps. Getting like a 30-40Fps reduction in heavy areas. From 35 down to 20 and pauses.

On the bright side having a clean install has shown me nust how much resources the Orbx packages consume. IE the Socal package cost 10Fps plus from 35 down to 18-24 plus pauses...gone.

Thanks for the Jumbo guys she is flying on V4 very nicely.

Now when are we getting the other real aeroplane..the DC-6?? Lol..thx

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How was this stuff not caught during the testing of v4 baffles me.

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Did you ever come to the conclusion, that dynamic lighting simply needs more optimization from Lockheed-Martin?! To be honest, before you start flying off, and accusing PMDG of bad testing, it's entirely possible, that the new lighting techniques in Prepar3D V4 simply needs some fine-tuning by Lockheed-Martin.

Sometimes I wish people would obtain all facts, before starting (unsubstantiated) accusations regarding problems, that they don't really know what's the root off... 

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5 hours ago, Chapstick said:

Anyone else find that the new dynamic lighting on the Queen in V4 is a huge hit to FPS? For me it cuts my FPS in half. I'm on a i7-4770k and a GTX 970; I'm curious to know what other people are seeing. Definitely keeping it off for now.

Alex Pugh

I am seeing the same, however, only with landing lights + runway turnoff +taxi lights (if fitted). 

Just landing lights = no issues

Just taxi + runway turnoff lights = no issues


P.S. If you turn off dynamic lighting, you dont see any light splash, as in no light at all. 

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3 hours ago, ahsmatt7 said:

How was this stuff not caught during the testing of v4 baffles me.

Could also be that this dynamic lighting thing is one of those forward looking next gen hardware things, kind of like FSX was in its early days; no one had a system that could run all the sliders to the right at first, remember? Then came the i7...

If FSX had been designed to fully run with then current hardware, it never would survived 10 years and would have sucked by now, or soon after.

Now with dynamic lights off and not getting any lights at all? That is something else and shouldn't be. 

My system (i7-7700K/980 GTX) as well for some who knows what reason gets hammered 50%+ with dynamic lighting on and all other sliders to the right with the 747 sitting at the gate at KLAX but I still have landing lights showing and the area is lit up with dynamic lighting off. Haven't tried a flight yet, will do that tomorrow, but if I want dynamic lights, I am going to have to turn other things down, like autogen radius, for example, a big fps killer. Nothing wrong with that it seems to me.

If this option can be better optimized by LM or PMDG in the future, great.  But I guess I don't expect to be able to run this new simulator with all sliders to the right and all boxes checked with my current hardware. Two years from now? Who knows? Do I want to wait for LM to get this right before I can use P3Dv4? No.

What I AM going to do is uncheck that box for now and enjoy a very smooth flight with detailed scenery and AG out to the horizon with AS16/ASCA clouds, detailed airports, moving cars, no OOM's at 30 fps with most of the other sliders full right in the 747. I will leave full autogen radius, 4096 textures, full dynamic reflections, full right and far shadows, and dynamic lighting for the future.

Just sayin'...

Bill

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3 hours ago, beachdog2001 said:

 

Could also be that this dynamic lighting thing is one of those forward looking next gen hardware things, kind of like FSX was in its early days; no one had a system that could run all the sliders to the right at first, remember? Then came the i7...

Bill

To be honest, dynamic lighting is not exactly next gen tech. 

I will note that I am loving everything else about the 747 in V4. It's a huge step forward. 

Alex Pugh

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5 hours ago, calzonister said:

I am seeing the same, however, only with landing lights + runway turnoff +taxi lights (if fitted). 

Just landing lights = no issues

Just taxi + runway turnoff lights = no issues


P.S. If you turn off dynamic lighting, you dont see any light splash, as in no light at all. 

Yep, looks like we don't have a back-up if dynamic lighting tanks our FPS. That's very disappointing, to say the least.

Alex Pugh

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I think the fps will be tweaked either by LM or Pmdg to improve..xp11 has no issues with it so there is no reason why this should have problems.

Just bide your time...

 

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Something happened and I'm no longer seeing a massive FPS drop with dynamic lighting on. I literally have no idea what changed, besides me messing with AA settings and some other stuff, but all my settings are back to normal and the lights are having very little impact on FPS. I can't say I'm satisfied because I don't understand what happened.

Alex Pugh

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Hi Guys

If you run MSAA instead of SSAA for your anti-aliasing, there is less of a framerate hit with dynamic lighting. I just tested this.

On a 4K monitor, you hardly notice the difference in AA values.

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There is a performance drop when landing lights are on, runway turn off and taxi lights. I don't think this is related to the 747 though. I also see a gray, instead of red beacon reflection on the inner engines during daytime.

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