diff --git a/CPU-Software-Renderer/RenderData/Color.h b/CPU-Software-Renderer/RenderData/Color.h
index 1aa5ba6..e95739b 100644
--- a/CPU-Software-Renderer/RenderData/Color.h
+++ b/CPU-Software-Renderer/RenderData/Color.h
@@ -30,5 +30,11 @@ namespace RenderData
 			if (value > 255) return 255;
 			return static_cast<uint8_t>(value);
 		}
+
+		static Color Red() { return Color(255, 0, 0, 255); }
+		static Color Green() { return Color(0, 255, 0, 255); }
+		static Color Blue() { return Color(0, 0, 255, 255); }
+		static Color White() { return Color(255, 255, 255, 255); }
+		static Color Black() { return Color(0, 0, 0, 255); }
 	};
 }
\ No newline at end of file
diff --git a/CPU-Software-Renderer/main.cpp b/CPU-Software-Renderer/main.cpp
index 119a337..7e423d5 100644
--- a/CPU-Software-Renderer/main.cpp
+++ b/CPU-Software-Renderer/main.cpp
@@ -171,7 +171,7 @@ static bool IsFaceVisible(const CubeFace& face, const std::array<Math::Vector3,
 			viewSpaceVertices[face.vertices[2]] +
 			viewSpaceVertices[face.vertices[3]]) / 4.0f;
 
-	return faceNormal.dot(faceCenter) < 0.0f;
+	return faceNormal.dot(faceCenter) > 0.0f;
 }
 
 int main(int argc, char* argv[])