This animation visualizes Bridson’s Poisson-disc sampling algorithm by showing the branching process as new samples are added. Each time a sample is placed, a line animates outward from the neighboring sample that spawned it, revealing the algorithm’s growth tree. The code uses d3.v3 to append SVG line elements and applies staggered transitions with a delay based on each sample’s depth, making the generation order visible. The sampling itself follows Jason Davies’s implementation, generating random points with a minimum radius while rejecting candidates that are too close or outside the canvas.