diff --git a/features/Subsurface Scattering/Shaders/SubsurfaceScattering/SeparableSSS.hlsli b/features/Subsurface Scattering/Shaders/SubsurfaceScattering/SeparableSSS.hlsli
index 699032efc9..af6d873b6e 100644
--- a/features/Subsurface Scattering/Shaders/SubsurfaceScattering/SeparableSSS.hlsli	
+++ b/features/Subsurface Scattering/Shaders/SubsurfaceScattering/SeparableSSS.hlsli	
@@ -102,7 +102,7 @@ float4 SSSSBlurCS(
 	float4 colorM = ColorTexture[DTid.xy];
 
 #if defined(HORIZONTAL)
-	colorM.rgb = Color::GammaToLinear(colorM.rgb);
+	colorM.rgb = Color::GammaToTrueLinear(colorM.rgb);
 #endif
 
 	if (sssAmount == 0)
diff --git a/features/Subsurface Scattering/Shaders/SubsurfaceScattering/SeparableSSSCS.hlsl b/features/Subsurface Scattering/Shaders/SubsurfaceScattering/SeparableSSSCS.hlsl
index b594c22410..77eb88dd5b 100644
--- a/features/Subsurface Scattering/Shaders/SubsurfaceScattering/SeparableSSSCS.hlsl	
+++ b/features/Subsurface Scattering/Shaders/SubsurfaceScattering/SeparableSSSCS.hlsl	
@@ -38,7 +38,7 @@ cbuffer PerFrameSSS : register(b1)
 	bool humanProfile = MaskTexture[DTid.xy].y == sssAmount;
 
 	float4 color = SSSSBlurCS(DTid.xy, texCoord, float2(0.0, 1.0), sssAmount, humanProfile);
-	color.rgb = Color::LinearToGamma(color.rgb);
+	color.rgb = Color::TrueLinearToGamma(color.rgb);
 	SSSRW[DTid.xy] = float4(color.rgb, 1.0);
 
 #endif
diff --git a/package/Shaders/Common/Color.hlsli b/package/Shaders/Common/Color.hlsli
index 12d2c7de21..723eb457be 100644
--- a/package/Shaders/Common/Color.hlsli
+++ b/package/Shaders/Common/Color.hlsli
@@ -46,12 +46,22 @@ namespace Color
 
 	float3 GammaToLinear(float3 color)
 	{
-		return pow(color, 1.6);
+		return pow(color, 1.8);
 	}
 
 	float3 LinearToGamma(float3 color)
 	{
-		return pow(color, 1.0 / 1.6);
+		return pow(color, 1.0 / 1.8);
+	}
+
+	float3 GammaToTrueLinear(float3 color)
+	{
+		return pow(color, 2.2);
+	}
+
+	float3 TrueLinearToGamma(float3 color)
+	{
+		return pow(color, 1.0 / 2.2);
 	}
 
 	float3 Diffuse(float3 color)
diff --git a/src/Features/ScreenSpaceGI.cpp b/src/Features/ScreenSpaceGI.cpp
index 52ca76e388..2a8fa808a7 100644
--- a/src/Features/ScreenSpaceGI.cpp
+++ b/src/Features/ScreenSpaceGI.cpp
@@ -171,14 +171,14 @@ void ScreenSpaceGI::DrawSettings()
 
 	ImGui::Separator();
 
-	ImGui::SliderFloat("AO radius", &settings.AORadius, 10.f, 800.0f, "%.1f game units");
+	ImGui::SliderFloat("AO radius", &settings.AORadius, 10.f, 1024.0f, "%.1f game units");
 	if (auto _tt = Util::HoverTooltipWrapper())
 		ImGui::Text("A smaller radius produces tighter AO.");
 
 	{
 		auto _ = Util::DisableGuard(!settings.EnableGI);
 
-		ImGui::SliderFloat("IL radius", &settings.GIRadius, 10.f, 800.0f, "%.1f game units");
+		ImGui::SliderFloat("IL radius", &settings.GIRadius, 10.f, 1024.0f, "%.1f game units");
 		if (auto _tt = Util::HoverTooltipWrapper())
 			ImGui::Text("A larger radius produces wider IL.");
 	}
@@ -194,7 +194,7 @@ void ScreenSpaceGI::DrawSettings()
 	if (showAdvanced) {
 		ImGui::Separator();
 
-		ImGui::SliderFloat("Thickness", &settings.Thickness, 0.f, 500.0f, "%.1f game units");
+		ImGui::SliderFloat("Thickness", &settings.Thickness, 0.f, 128.0f, "%.1f game units");
 		if (auto _tt = Util::HoverTooltipWrapper())
 			ImGui::Text("How thick the occluders are. Only affects AO.");
 	}
diff --git a/src/Features/ScreenSpaceGI.h b/src/Features/ScreenSpaceGI.h
index dc0a7cf7a0..e16fa546b9 100644
--- a/src/Features/ScreenSpaceGI.h
+++ b/src/Features/ScreenSpaceGI.h
@@ -51,25 +51,25 @@ struct ScreenSpaceGI : Feature
 		int ResolutionMode = 1;  // 0-full, 1-half, 2-quarter
 		// visual
 		float MinScreenRadius = 0.01f;
-		float AORadius = 256.f;
-		float GIRadius = 256.f;
-		float Thickness = 16.f;
+		float AORadius = 512.f;
+		float GIRadius = 512.f;
+		float Thickness = 32.f;
 		float2 DepthFadeRange = { 4e4, 5e4 };
 		// gi
-		float GISaturation = 0.9f;
+		float GISaturation = 1.0f;
 		bool EnableGIBounce = true;
 		float GIBounceFade = 1.0f;
 		float GIDistanceCompensation = 0.f;
 		// mix
-		float AOPower = 1.0f;
-		float GIStrength = 1.5f;
+		float AOPower = 2.0f;
+		float GIStrength = 2.0f;
 		// denoise
 		bool EnableTemporalDenoiser = true;
 		bool EnableBlur = true;
 		float DepthDisocclusion = .1f;
 		float NormalDisocclusion = .1f;
-		uint MaxAccumFrames = 16;
-		float BlurRadius = 2.f;
+		uint MaxAccumFrames = 30;
+		float BlurRadius = 5.f;
 		float DistanceNormalisation = 2.f;
 	} settings;
 
diff --git a/src/Features/Skylighting.h b/src/Features/Skylighting.h
index e30ec884c8..4ea09003c5 100644
--- a/src/Features/Skylighting.h
+++ b/src/Features/Skylighting.h
@@ -36,7 +36,7 @@ struct Skylighting : Feature
 		float MaxZenith = 3.1415926f / 2.f;  // 90 deg
 		float MinDiffuseVisibility = 0.1f;
 		float MinSpecularVisibility = 0.1f;
-		float SSGIAmbientDimmer = 1.0f;
+		float SSGIAmbientDimmer = 0.5f;
 	} settings;
 
 	struct SkylightingCB