X3D import issues #45203

New Issue

Bastien Montagne · 2015-06-26T16:16:07+02:00

Bastien Montagne commented

2015-06-26 16:16:07 +02:00

System Information
OS X 10.9 on MacBook Pro 13 (Intel Iris graphics)

Blender Version
Broken: 2.74 (2015-Mar-31)

Problems importing X3D files generated by the popular chemistry tool JMol

Exact steps for others to reproduce the error

1.) Start with the default empty project
2.) Try to import Abraham1994_ICSD_75387.x3d. It seems to work, but is extremely slow (~1 h for 1 MByte file with 44k objects). I have added some debug output to import_x3d.py, which demonstrates that the import rate (number of imported objects per second) decreases significantly during the import. It feels like there is some O(n^2) scaling somewhere in the code.

**System Information** OS X 10.9 on MacBook Pro 13 (Intel Iris graphics) **Blender Version** Broken: 2.74 (2015-Mar-31) Problems importing X3D files generated by the popular chemistry tool JMol **Exact steps for others to reproduce the error** 1.) Start with the default empty project 2.) Try to import [Abraham1994_ICSD_75387.x3d](https://archive.blender.org/developer/F197349/Abraham1994_ICSD_75387.x3d). It seems to work, but is _extremely_ slow (~1 h for 1 MByte file with 44k objects). I have added some debug output to import_x3d.py, which demonstrates that the import rate (number of imported objects per second) decreases significantly during the import. It feels like there is some O(n^2) scaling somewhere in the code.

Bastien Montagne commented

2015-06-26 16:16:07 +02:00

Changed status to: 'Open'