Animated WebGL visualization of 10,000 line segments that continuously morph between different geometric patterns—a circle, then two distinct random point distributions. The code uses the regl framework with custom GLSL vertex and fragment shaders to interpolate between precomputed buffer states, cycling through three datasets in a loop. Line color shifts from blue to red based on each segment's position index, while d3 generates the underlying point data and easing functions control the smooth transitions.