Sorry, late to the thread...What I've been doing with shadows: https://forums.frontier.co.uk/threads/shadow-quality.587551/
And if you want more examples of GraphicsConfigurationOverride.xml changes, this is what I'm personally using:
XML:<?xml version="1.0" encoding="UTF-8" ?> <GraphicsConfig> <HDRNode_Reference> <GlareCompensation>1.25</GlareCompensation> </HDRNode_Reference> <SpotShadows_Ultra> <CacheShadowAtlasSize>16384</CacheShadowAtlasSize> <CacheShadowSize>2048</CacheShadowSize> <SpotFilterQuality>3</SpotFilterQuality> <EVSMSpotFullRes>false</EVSMSpotFullRes> </SpotShadows_Ultra> <Planets> <Ultra> <TextureSize>8192</TextureSize> <AtmosphereSteps>7</AtmosphereSteps> <WorkPerFrame>512</WorkPerFrame> </Ultra> </Planets> <GalaxyBackground> <High> <TextureSize>4096</TextureSize> </High> </GalaxyBackground> <Bloom> <Ultra> <GlareScale>0.0225</GlareScale> <FilterRadius>1.0</FilterRadius> <FilterRadiusWide>3.5</FilterRadiusWide> </Ultra> </Bloom> <Envmap> <High> <TextureSize>1024</TextureSize> <NumMips>10</NumMips> </High> </Envmap> <GalaxyMap> <High> <HighResNebulasCount>3</HighResNebulasCount> <LowResNebulaDimensions>256</LowResNebulaDimensions> <HighResNebulaDimensions>1024</HighResNebulaDimensions> <LowResSamplesCount>64</LowResSamplesCount> <HighResSamplesCount>112</HighResSamplesCount> <MilkyWayInstancesCount>64000</MilkyWayInstancesCount> <MilkywayInstancesBrightness>1.0</MilkywayInstancesBrightness> <MilkywayInstancesSize>0.25</MilkywayInstancesSize> <StarInstanceCount>12000</StarInstanceCount> </High> </GalaxyMap> <Debris> <High> <DebrisLimit>2000</DebrisLimit> </High> </Debris> <Terrain> <UltraPlus> <BlendTargetsResolution>2048</BlendTargetsResolution> <WindVectorFieldResolution>2048</WindVectorFieldResolution> </UltraPlus> </Terrain> <Volumetrics> <Ultra> <DownscalingFactor>1.5</DownscalingFactor> <BlurSamples>3</BlurSamples> </Ultra> </Volumetrics> </GraphicsConfig>
Probably not a good idea to just copypasta that, unless you have a rather high-end GPU. It's just a point of reference.
Most vairables from the main GraphicsConfiguration.xml can be modified in the override, but there are a few exceptions. For example, my shadow profiles add three frustums past what exists on any default preset, so the override is not a suitable place for them.
How much of an improvement could I expect from the above XML settings? Is there a performance hit? I'm running (basically) a Ryzen 7 5800x and an RTX 3080.
Ta.