How to train a fine model?

[jonbakerfish]

Hi, the N_importance in the train_kid-running.txt is set to zero. Is this mean the fine model is disabled at the first time training?
How can we train a fine model from a pre-trained coarse one?

[zhengqili]

Hi, for models trained on real monocular video, we don't adopt fine model since we found that it didn't help for rendering quality while significantly increasing training time overall.