diff --git a/Res/Shader/volume.hlsl b/Res/Shader/volume.hlsl
index 69529529..9f324565 100644
--- a/Res/Shader/volume.hlsl
+++ b/Res/Shader/volume.hlsl
@@ -127,7 +127,7 @@ float volumetric_shadow(float3 pos, float densityScale, inout pnanovdb_readacces
         sigmaE *= 0.3;
         shadow *= exp(-sigmaE * step_size);
         
-        step_size *= (2.0 + random_float(sample_pos));
+        step_size *= 2.0;
     }
     
     return shadow;
diff --git a/main.cpp b/main.cpp
index 335f87e9..d7b0e66e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -141,7 +141,7 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLi
 	DirectX::XMMATRIX projectionMatrix=DirectX::XMMatrixPerspectiveFovLH(
 		(45.0f*3.141592f)/180.0f,1280.0f/720.0f,0.1f,1000.0f);
 	DirectX::XMMATRIX viewMatrix = DirectX::XMMatrixLookAtLH(
-		DirectX::XMVectorSet(-10.0f, 73.0f, -1200.0f, 1.0f),
+		DirectX::XMVectorSet(-10.0f, 300.0f, -1200.0f, 1.0f),
 		DirectX::XMVectorSet(-10.0f, 73.0f, 0.0f, 1.0f),
 		DirectX::XMVectorSet(0.0f, 1.0f, 0.0f, 1.0f));
 	DirectX::XMMATRIX modelMatrix = DirectX::XMMatrixTranslation(0.0f,0.0f,5.0f);
@@ -258,7 +258,7 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLi
 			float volumeCBData[36];
 			memcpy(volumeCBData, &invViewProjMat, sizeof(float) * 16);
 			volumeCBData[16] = -10.0f;
-			volumeCBData[17] = 73.0f;
+			volumeCBData[17] = 300.0f;
 			volumeCBData[18] = -1200.0f;
 			volumeCBData[19] = 0.2f;  // DensityScale
 			volumeCBData[20] = (float)nanoVDBData.worldBBox[0];