diff --git a/features/Skylighting/Shaders/Skylighting/Skylighting.hlsli b/features/Skylighting/Shaders/Skylighting/Skylighting.hlsli
index 9e4520121..405452096 100644
--- a/features/Skylighting/Shaders/Skylighting/Skylighting.hlsli
+++ b/features/Skylighting/Shaders/Skylighting/Skylighting.hlsli
@@ -9,8 +9,8 @@ Texture3D<sh2> SkylightingProbeArray : register(t29);
 
 namespace Skylighting
 {
-	const static uint3 ARRAY_DIM = uint3(128, 128, 64);
-	const static float3 ARRAY_SIZE = float3(10000, 10000, 10000 * 0.5);
+	const static uint3 ARRAY_DIM = uint3(256, 256, 128);
+	const static float3 ARRAY_SIZE = 4096.f * 3.f * float3(1, 1, 0.5);
 	const static float3 CELL_SIZE = ARRAY_SIZE / ARRAY_DIM;
 
 	float getFadeOutFactor(float3 positionMS)
diff --git a/features/Skylighting/Shaders/Skylighting/UpdateProbesCS.hlsl b/features/Skylighting/Shaders/Skylighting/UpdateProbesCS.hlsl
index 4531f9fca..39d010418 100644
--- a/features/Skylighting/Shaders/Skylighting/UpdateProbesCS.hlsl
+++ b/features/Skylighting/Shaders/Skylighting/UpdateProbesCS.hlsl
@@ -8,20 +8,17 @@ RWTexture3D<uint> outAccumFramesArray : register(u1);
 
 SamplerState samplerPointClamp : register(s0);
 
-#define ARRAY_DIM uint3(128, 128, 64)
-#define ARRAY_SIZE float3(10000, 10000, 10000 * 0.5)
-
 [numthreads(8, 8, 1)] void main(uint3 dtid
 								: SV_DispatchThreadID) {
 	const float fadeInThreshold = 255;
 	const static sh2 unitSH = float4(sqrt(4.0 * Math::PI), 0, 0, 0);
 	const SkylightingSettings settings = skylightingSettings;
 
-	uint3 cellID = (int3(dtid) - settings.ArrayOrigin.xyz) % ARRAY_DIM;
-	bool isValid = all(cellID >= max(0, settings.ValidMargin.xyz)) && all(cellID <= ARRAY_DIM - 1 + min(0, settings.ValidMargin.xyz));  // check if the cell is newly added
+	uint3 cellID = (int3(dtid) - settings.ArrayOrigin.xyz) % Skylighting::ARRAY_DIM;
+	bool isValid = all(cellID >= max(0, settings.ValidMargin.xyz)) && all(cellID <= Skylighting::ARRAY_DIM - 1 + min(0, settings.ValidMargin.xyz));  // check if the cell is newly added
 
-	float3 cellCentreMS = cellID + 0.5 - ARRAY_DIM / 2;
-	cellCentreMS = cellCentreMS / ARRAY_DIM * ARRAY_SIZE + settings.PosOffset.xyz;
+	float3 cellCentreMS = cellID + 0.5 - Skylighting::ARRAY_DIM / 2;
+	cellCentreMS = cellCentreMS / Skylighting::ARRAY_DIM * Skylighting::ARRAY_SIZE + settings.PosOffset.xyz;
 
 	float3 cellCentreOS = mul(settings.OcclusionViewProj, float4(cellCentreMS, 1)).xyz;
 	cellCentreOS.y = -cellCentreOS.y;
diff --git a/src/Features/Skylighting.h b/src/Features/Skylighting.h
index 3830dd1b9..64d257b4e 100644
--- a/src/Features/Skylighting.h
+++ b/src/Features/Skylighting.h
@@ -78,8 +78,8 @@ struct Skylighting : Feature
 
 	// misc parameters
 	bool doOcclusion = true;
-	uint probeArrayDims[3] = { 128, 128, 64 };
-	float occlusionDistance = 10000.f;
+	uint probeArrayDims[3] = { 256, 256, 128 };
+	float occlusionDistance = 4096.f * 3.f;  // 3 cells
 
 	// cached variables
 	bool inOcclusion = false;