diff --git a/D3D11Engine/GothicAPI.cpp b/D3D11Engine/GothicAPI.cpp
index 33bcfab1..5c734280 100644
--- a/D3D11Engine/GothicAPI.cpp
+++ b/D3D11Engine/GothicAPI.cpp
@@ -634,7 +634,7 @@ void GothicAPI::DrawWorldMeshNaive() {
 	static float setfovH = RendererState.RendererSettings.FOVHoriz;
 	static float setfovV = RendererState.RendererSettings.FOVVert;
 
-	float fovH, fovV;
+	float fovH = 90.0f, fovV = 90.0f;
 	if (zCCamera::GetCamera())
 		zCCamera::GetCamera()->GetFOV(fovH, fovV);
 
diff --git a/D3D11Engine/zCParticleFX.h b/D3D11Engine/zCParticleFX.h
index 2f28988a..c65c6b8e 100644
--- a/D3D11Engine/zCParticleFX.h
+++ b/D3D11Engine/zCParticleFX.h
@@ -7,9 +7,6 @@
 #include "zCTimer.h"
 #include "zCPolyStrip.h"
 
-using namespace DirectX;
-using namespace DirectX::SimpleMath;
-
 enum EZParticleAlignment
 {
 	zPARTICLE_ALIGNMENT_VELOCITY = 1,
@@ -146,7 +143,7 @@ class zCParticleFX
 
 	static float SinEase(float value)
 	{
-		return (float)((sin(value * XM_PI - XM_PI / 2.0) + 1.0) / 2.0);
+		return (float)((sin(value * DirectX::XM_PI - DirectX::XM_PI / 2.0) + 1.0) / 2.0);
 	}
 
 	static float SinSmooth(float value)
diff --git a/D3D11Engine/zCSkyController_Outdoor.h b/D3D11Engine/zCSkyController_Outdoor.h
index e72e981c..4863167a 100644
--- a/D3D11Engine/zCSkyController_Outdoor.h
+++ b/D3D11Engine/zCSkyController_Outdoor.h
@@ -153,7 +153,7 @@ class zCSkyController_Outdoor : public zCSkyController
 #ifndef BUILD_GOTHIC_1_08k
 		return *(DirectX::SimpleMath::Vector3 *)THISPTR_OFFSET(GothicMemoryLocations::zCSkyController_Outdoor::Offset_OverrideColor);
 #else
-		return D3DXVECTOR3(0, 0, 0);
+		return DirectX::SimpleMath::Vector3(0, 0, 0);
 #endif
 	}