13-12-2022, 10:09 AM
(This post was last modified: 13-12-2022, 10:10 AM by josemendez.)
(13-12-2022, 10:02 AM)natko1412 Wrote: Hi,
I have a 2700kg mass rigidbody with another rigidbody of mass 200 attached via hinge joint to the first one.
The second body is mass 2300 and I have rope attached to the 2300 one with the 200 one on the other side.
I start with very short length rope and I want the rope to extend to 200m or even more. What is the reasonable mass for rope particles for this configuration?
Hi!
Same as it is in most iterative engines: mass ratios should be kept below 1:10. So if your rigidbody is 2700kg, rope particles should be around 270 kg. Note you can always use more substeps to improve convergence at the cost of performance, and go for larger mass ratios.
(13-12-2022, 10:02 AM)natko1412 Wrote: For now, the mass is 30kg for each particle. This seems to be a problem as I add more particles, the second object (2700 +200 mass one) cannot move upwards because of the weight of the rope...
That's probably the other way around... the second object cannot move upwards because the rope does not have enough mass to withstand the object's weight. The combined weight of both objects is dragging the rope down.
kind regards,