CG Cookie on Instagram: "Do you know the difference between DirectX and OpenGL normal maps? 🤔 💡 Normal maps simulate small surface details without adding geometry. But DirectX and OpenGL handle the Y-axis differently: 👉 DirectX Normal Maps: Y-axis (Green channel) points down Typically use left-handed coordinate system Green areas on the normal map might look darker. 👉 OpenGL Normal Maps: Y-axis (Green channel) points up Uses a right-handed coordinate system Green areas usually appear lighter