diff --git a/Res/Shader/volume.hlsl b/Res/Shader/volume.hlsl
index 30ef62ea..1bd1e975 100644
--- a/Res/Shader/volume.hlsl
+++ b/Res/Shader/volume.hlsl
@@ -112,7 +112,7 @@ float4 MainPS(PSInput input) : SV_TARGET
 {
     float3 rayDir = normalize(input.worldPos - _CameraPos);
     
-    float tmin = 0.1;
+    float tmin = 0.01;
     float tmax = 1000.0;
     
     NanoVolume volume;
diff --git a/main.cpp b/main.cpp
index 102a634c..31aab440 100644
--- a/main.cpp
+++ b/main.cpp
@@ -176,7 +176,7 @@ 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, -600.0f, 1.0f),
+		DirectX::XMVectorSet(-10.0f, 73.0f, -800.0f, 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);
@@ -294,8 +294,8 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLi
 			memcpy(volumeCBData, &invViewProjMat, sizeof(float) * 16);
 			volumeCBData[16] = -10.0f;
 			volumeCBData[17] = 73.0f;
-			volumeCBData[18] = -600.0f;
-			volumeCBData[19] = 0.01f;  // DensityScale
+			volumeCBData[18] = -800.0f;
+			volumeCBData[19] = 0.05f;  // DensityScale
 			volumeCBData[20] = (float)nanoVDBData.worldBBox[0];
 			volumeCBData[21] = (float)nanoVDBData.worldBBox[1];
 			volumeCBData[22] = (float)nanoVDBData.worldBBox[2];
@@ -303,7 +303,7 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLi
 			volumeCBData[24] = (float)nanoVDBData.worldBBox[3];
 			volumeCBData[25] = (float)nanoVDBData.worldBBox[4];
 			volumeCBData[26] = (float)nanoVDBData.worldBBox[5];
-			volumeCBData[27] = 128;
+			volumeCBData[27] = 500;
 			UpdateConstantBuffer(volumeCB, volumeCBData, sizeof(float) * 28);
 			if (frameCount == 1) {
 				printf("Volume BBox: [%.2f, %.2f, %.2f] - [%.2f, %.2f, %.2f]\n",