Niklas Schneider

Hey!

Im not sure if you solved it already but in any case I just bumped into the same issue.

What I found out is that when you enable Checkpointing in the SOP Flip Solver, it for some reason doesn't pass the $SF simulation frame value, that is required in the filename, on to the dopnetwork inside the SOP Flip Solver node.

What happens then is that the .sim files get written without a frame value.
(FILENAME..sim instead of FILENAME.1.sim for the first frame)
The solver doesn't know what to do with that and the rest of the sim is blank.

To fix it you can dive inside the SOP Flip Solver and break the Checkpoint File Name Connection on the DOP Net in there and set it yourself to FILELOCATION/FILENAME.$SF.sim

My guess is that $SF doesnt even exist on SOP Level where the SOP FLIP Solver node tries to evaluate it, since it is the Simulation Frame. Therefore it returns a blank value.

Hope this helps

Cheers

Then I turned up the stiffness of your glue constraints... they were so floppy they looked like they were not working.

Having a similar issue I just spent a lot of time searching my attributes for a mistake. Your answer just fixed my problem immediately. I never would have thought that the constraints were actually working but were too floppy to do anything.

Thanks a lot!