AlphaJoe Posted March 17, 2016 Share Posted March 17, 2016 So, I was trying to use checkpoints on my DOP network, but as soon as I play the simulation, the resize node never expands to contain my pyro sim. The sim runs, and the checkpoint is created, but the resize will not grow with the flame as it expands, so it winds up hitting the sides of the small container surrounding the source object.. Also, if I rewind and play the sim again, it skips simulating all frames between frame 1 and the first checkpointed frame. If I go in and turn off checkpoints, the sim runs like normal. Am I missing something? I know I have done this before, but I don't remember having this problem. I am attaching a test scene I made to show what I mean. It is just a torus set of fire with the smokeless flames shelf tool. To see the sim run correctly, just turn off Checkpoints. flametest.hipnc Quote Link to comment Share on other sites More sharing options...
Atom Posted March 17, 2016 Share Posted March 17, 2016 (edited) You scene runs correctly for me with checkpoints turned on but I have experienced resize_container node failure many times. So many times that I often just unhook that node. It seems incredibly buggy. It often runs fine in a new or 'clean' scene but as you continue changing parameters it will become broken. Things I do to resize_container is to turn off Clamp To Max and I will often add the temperature field as a reference field as well. You can try turning up Padding too. Edited March 17, 2016 by Atom Quote Link to comment Share on other sites More sharing options...
AlphaJoe Posted March 18, 2016 Author Share Posted March 18, 2016 Ok, so a quick update. Apparently I just needed to do a full restart of my machine. I rebooted and now the checkpoints worked... once. I was able to play through the sim, stop it at some arbitrary frame to create a checkpoint. However, when I rewound to frame 1 and played again, the sim wouldn't do anything until it got to the checkpoint frame, then it would continue on. Strange Quote Link to comment Share on other sites More sharing options...
djiki Posted March 19, 2016 Share Posted March 19, 2016 (edited) Such behavior is expected. Suppose you setup highres sim to work several days for final results. And last day electricity power failure restart your machine before it complete task sim. So you dont have to do all sim from begining. Simulation can continue from the last checked point because it contains all necessary data for sim. Try to turn off that option while doing setup and use it on only when final sim have to be started. If you decide to resimulate, manually delete cache files on disk and then turn it on. Resize_container node have parameters called padding. Those values represents the size in voxels and tells how much it can resize it's bounds in one time step of sim. So if you have fast moving pyro effect you should increase padding so it can properly adjust bounds to follow your fluid. Edited March 19, 2016 by djiki Quote Link to comment Share on other sites More sharing options...
rayman Posted March 19, 2016 Share Posted March 19, 2016 Also make sure that cached checkpoints are deleted from your hdd, or remove them from the file path, otherwise you may still see incorrect results, even if checkpoints are off. It happened to me several times, so now I always delete them manually. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.