Kerbal Space Program

Yeah saw this from the release of 1.9.0

Hello, I don't know what is your current progress on this issue, but I have cobbled together a fix for it in my mod scatterer.

It involves modifying the screenSpaceShadows shader:

1) When the ratio of farClipPlane/nearClipPlane is high, I found that precision suffers when reconstrucing position from depth using the ray method, instead I use the inverse projection method which usually has lower precision but in this case is actually better, you can do this by using the shadow subshader tagged "PCF_SOFT_FORCE_INV_PROJECTION_IN_PS".

2) I add a bias to the shadow receiver based on depth, I found that precision is good near the camera but degrades further away, this seems to fix all issues for me.

Here are the lines that matter:
https://github.com/LGhassen/Scatterer/blob/master/scatterer/Shaders/scattererShaders/Assets/Shaders/Shadows/FixedScreenSpaceShadows.shader#L93-L109

https://github.com/LGhassen/Scatterer/blob/master/scatterer/Shaders/scattererShaders/Assets/Shaders/Shadows/FixedScreenSpaceShadows.cginc#L197-L198

Hope this is of use.

I believe this issue is fixed in KSP v1.10. I checked Mun and Minmus where I clearly saw it before and it looks good.

Krazy1 wrote:

I believe this issue is fixed in KSP v1.10. I checked Mun and Minmus where I clearly saw it before and it looks good.

Checked this bug last week - it's still in game, nobody fixed it.

For players stumbling across this, the following has worked for some users:

Launching the game with -force-d3d11

OR

Changing the following settings.cfg lines:

SHADOWS_FLIGHT_PROJECTION = 0
SHADOWS_KSC_PROJECTION = 0
SHADOWS_TRACKING_PROJECTION = 0
SHADOWS_EDITORS_PROJECTION = 0
SHADOWS_MAIN_PROJECTION = 0
SHADOWS_DEFAULT_PROJECTION = 0

To:

SHADOWS_FLIGHT_PROJECTION = 1
SHADOWS_KSC_PROJECTION = 1
SHADOWS_TRACKING_PROJECTION = 1
SHADOWS_EDITORS_PROJECTION = 1
SHADOWS_MAIN_PROJECTION = 1
SHADOWS_DEFAULT_PROJECTION = 1

This should still be fixed. 1.11 have it.

I had terrain/shadow flickering issue pop up in 1.11.2.3077. I was originally running maxed settings in 4k and slowly lowering them to try and resolve it.

Following Guard13007's advice fixed it for me, and I'm slowly increasing settings without issue so far.

Thanks!