Traditional soft-body physics in programs like Blender, MMD (MikuMikuDance), and early SFM relied on what engineers call "linear restitution." In layman's terms: things bounced back too fast. A hip or chest would collide with a surface, and the "bounce" looked like a rubber ball hitting concrete—snappy, fast, and without mass.
The phrase on everyone’s (virtual) lips is: heavy bounce 2 pmv better
This is a calibration error. If your HB2 looks "under water," you have your Damping set above 0.60 and your Friction below 0.30. You are negating the "Snap-Back Decay." Lower your Damping to 0.40 and increase your Linear Drag. The result is not underwater; it is powerful . Traditional soft-body physics in programs like Blender, MMD
If you are still using legacy physics or the original Heavy Bounce, you are living in the past. The mass has shifted. The gravity has increased. If your HB2 looks "under water," you have
Even when synced to a 120 BPM track, the HB2 engine randomizes the secondary bounce rotation by 0.5 to 1.5 degrees per hit. To the conscious mind, it looks perfectly on-beat. To the subconscious, it looks organic . The Showdown: Why "HB2" is Objectively Better than the Competition Let’s put the contenders in the ring. We are comparing Heavy Bounce 2 vs. Standard Dynamic Bones vs. Legacy HB1 .
If you have spent any time in the niche corners of the 3D animation, Source Filmmaker (SFM), or adult gaming communities over the last 18 months, you have seen the debate. You have seen the forum threads, the Patreon polls, and the Discord arguments that get surprisingly technical.
If the bounce is bad on the first loop, it is unbearable by the 50th.