got them, thanks. 

1. the 1m/20mm and the 1m/40mm and 2m/40mm hold 625 / 2500 verts, my 32x32 does 1024 so lets see what happens. Perhaps we might need the 2m/80mm as well.

2. I suggest we agree on some common experiments as well, next to all those we'll add to them. Just dropdowns from specific heights will do. 

 - 19.6 m, impact at 2 sec, test for 3 = 90 frames

 - 78,4 m, impact at 4 sec, test for 5

 - 313,6 m, impact at 8 sec, test for 9

 - 1254,4 m, impact at 16 sec, test for 17 = 510 frames

My logic behind this:

 - I already performed tests at 2 sec impact, so that would make results comparable.

 - Effects seem to get worse over time. If its hardly there at the beginning it might get serious at the end, see my previous results on frame 14/60/100.

 - proper animation shots should not last longer than 2 - 4 sec nowadays, that's 10 shots in a 30 sec TV commercial. Longer shots usually make people distracted in story telling. Everything that holds this long is usable for all of us (us dummies that this thread originally was set up for). Silver medal.

 - 8 sec is just an intermediate. Some animation shots might last a bit longer than 4 sec and 16 sec to impact is a lengthy sim run.

 - 16 sec (half a TV commercial) is just an extreme stress test. Any solution which holds for that long gets a gold medal. And from my latest run, 512x512 in 4 hours for 100 frames, impact at 60, I infer that even the simulation on 400x400 dropped from 1254,4 mtr will finish within 24 hours on my 4-years old 32bit Q6600  machine. Not too bad.

No testing for me today BTW, customers first.

See you.

- - - - - 

Usually I'm wrong. But to be effective and efficient, I don't need to be correct or accurate.

visit www.aRtBeeWeb.nl (works) or Missing Manuals (tutorials & reviews) - both need an update though