for example I use the fexternal to transfere the pressure force to the clothsolver. the cloth solver has internal maximal substeps of 1024, but the sopsolver just gives one update per timestep. i attached a time attribute to check, and it just updates at every global timestep, so my guess is that the cloth solver works with the same external force for each timestep on all substeps. I tried to increase the dops "max feedback loops", but it seems to have no influence on the fexternal update to the cloth solver.
I attached a file, first I tried to use the normal of the object, but a volume gradient worked better for the forcedirection
if you increase the internal pressure, it does not result in the shape you would expect , instead it is not round
increasing the global substeps helps, but at the cost of time. would be cool to have something like a cosolver for the clothsolver so it can get updated data
Edited by sanostol, 19 April 2012 - 03:05 AM.