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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