Game Lags like Hell when looking down Kerbin Ground.

[tempsgk]

Does not occur on other planets (Though I only tested on the Moon and Eeloo, only kerbin seems to have this problem. Also did not occur before the 1.0 update.

Looking up in sky = 60 fps, looking down to ground = 22-34 fps. And it drops instantly.

It does not matter if you are near the KSP launch pad, you can be on opposite of the planet and still have this ridiculous drop.

Also I am flying a low part count stock ship. So its not the part count that cause the FPS drop and neither is the Launch pad or buildings.

My system:

i5-4670k

AMD 7950 Boost

2560x1080 Resolution

Latest AMD beta Drivers

Does not matter which settings, low or high still have this problem.

Edited May 9, 2015 by tempsgk

[Sonny_Jim]

I've always had this, in fact in space I have to orientate my view to a particular bit of sky so my framerate doesn't drop through the floor.

Another trick I've found is to switch to map view and zoom all the way out, which makes my framerate suddenly increase for some bizarre reason.

[tempsgk]

OK so this is clearly a bug. Just now created a new career save and I had no fps drop. I am playing normally. After this I exit the career game, create a sandbox game and no bug! No fps drop. So I exit the game to desktop and restarted and went back to my career save and the bug came back. Tried doing the first step but still have that bug.

So again clearly a bug, but trying to repeat is random.

[RocketPilot573]

It's due to the way water is rendered (poorly), all AMD GPUs (such as the one you have) are effected by this, regardless of how powerful the GPU is. Thus when you look at the water (which is also below the ground) a massive lag spike will occur.

[Candlelight]

This happens to me too!

And i have 2 GPU-s: Intel HD Graphics 4600 and Nvidia GeForce 710M

4 GB RAM

1600x900 resolution

Latest drivers

Edited May 10, 2015 by Candlelight

[tempsgk]

It's due to the way water is rendered (poorly), all AMD GPUs (such as the one you have) are effected by this, regardless of how powerful the GPU is. Thus when you look at the water (which is also below the ground) a massive lag spike will occur.

If that's the case, any quick fixes to the problem?

[sal_vager]

I read the other day that AMD was lagging behind Nvidia on speed at high resolutions, but AMD was consistently faster at a lower res, might be worth a try.

[tempsgk]

Well people are forgetting that I did not have this problem before the 1.0 update.

So surely 1.0 had changed something.

[sal_vager]

Please post your logs after the lag occurs tempsgk, also your dxdiag.

[tempsgk]

@Sal_vager for the logs is it after I exit the game?

Also I might have figured out the cause, the cause is the sm3 shaders being turned on. But I remembered that I had that setting turned on before 1.0 and no problems. So wierd. Also it looks terrible with it off

Edited May 10, 2015 by tempsgk

[sal_vager]

Textures are .dds instead of .tga/.mbm now, I wonder if that is having an effect on some hardware.

[tempsgk]

Well if that is the cause, squad needs to look into it.

[komodo]

I get this on OS X (Yea, I know...)... Turning the rendering quality to 'fast' seems to fix it up though, for me.

[sal_vager]

It shouldn't be, which is weird, as .dds doesn't need to be converted before use by the graphics hardware and takes less memory.

We'll need to see your logs and dxdiag to determine anything further.

Please see here. [Link]

Edited May 11, 2015 by sal_vager

[tempsgk]

@komodo just tried that setting, holy .... it works! Normal FPS. Tested an assortment of settings. sm3 shaders with fast rendering = Works! Sm3 Shaders with Simple and above rendering = Fps cut in half when looking at horizon, Turning Off Sm3 shaders with any rendering setting = Works.

@Sal_Vager

Here are the logs and Dxdiag

http://mega.co.nz/#F!ztVwFYCa!2isy1XixJ3WgMQOsGzLXUg

[sal_vager]

How does your terrain look without the SM3 shaders?

And thanks for the logs!

[tempsgk]

The first Link Here is http://i.imgur.com/djprFG5.jpg is with Sm3 Shaders turned off

Here is with Sm3 shaders turned on

http://i.imgur.com/IOhofrQ.jpg

I'm running on fast rendering quality with both so I got 60 fps, also installed some mods. But you can see the difference.