In Version 4 of the Pearl Sandbox, the simulation feels much more responsive and satisfying to play with. The biggest visual change is that pearls no longer just drop from the ceiling in random spots. Instead, wherever you click on the glass box—whether it’s the top, the side walls, or near the bottom—the pearls now spawn right at your cursor position and burst inward into the box.

The main hurdle in this update was getting the box boundaries and click detection right. In earlier tests, fast-moving pearls would glitch out and fall right through the glass walls, or spawn halfway outside the box. To fix this, all six sides of the glass box are now completely solid, keeping every single pearl trapped inside even when dozens are bouncing around at once. Another challenge was making sure the pearls shoot inward away from the wall you click on rather than just dropping straight down. Once that was dialed in, adding a small collapsible menu overlay and the 3D orientation gizmo in the corner really helped tie everything together, making camera navigation feel smooth while keeping the focus on the bouncing pearls.