What is normal mapping in C++ graphics programming?

What is normal mapping in C++ graphics programming?

Normal mapping is a technique used in 3D graphics to simulate detailed surface textures without increasing the polygon count. It uses a normal map to alter the surface normals of a 3D model, giving the illusion of depth and detail.

How do I implement normal mapping in my C++ graphics application?

To implement normal mapping, you'll need to load a normal map texture, sample it in your fragment shader, and adjust the lighting calculations based on the modified normals.

Can you explain how normal maps differ from bump maps?

Yes! Normal maps store normal vectors in RGB format, allowing for more detailed surface variations, while bump maps only use grayscale values to simulate depth.

What libraries can I use for graphics programming in C++?

Popular libraries include OpenGL, DirectX, and Vulkan, which provide extensive support for graphics programming, including normal mapping.