What are some common lighting techniques in OpenGL?

What are some common lighting techniques in OpenGL?

In OpenGL, common lighting techniques include Phong shading, Gouraud shading, and ambient lighting. Would you like to know more about any specific technique?

Can you explain Phong shading in detail?

Sure! Phong shading calculates the color of a pixel based on the angle of the light source, the viewer's position, and the surface normal. It provides a smooth appearance by interpolating normals across the surface.

How does Gouraud shading differ from Phong shading?

Gouraud shading calculates the color at the vertices and interpolates these colors across the surface, while Phong shading interpolates normals and calculates the color per pixel, resulting in more detailed highlights.

What is ambient lighting and how is it implemented?

Ambient lighting simulates indirect light that affects all objects equally. In OpenGL, it's implemented by adding a constant color value to the final color calculation, ensuring that even in shadowed areas, there is some light.