The slide presents the concept of light falloff, illustrating how the intensity of light diminishes with distance. According to the inverse square law, the intensity at a distance 'r' is proportional to 1/r^2, indicating that light spreads out as it travels away from the source, reducing its intensity on surfaces.
The slide presents the concept of light falloff, illustrating how the intensity of light diminishes with distance. According to the inverse square law, the intensity at a distance 'r' is proportional to 1/r^2, indicating that light spreads out as it travels away from the source, reducing its intensity on surfaces.