Hi,
I am Wenkang, a master student from Chalmers,Sweden.
Yseterday I got the results from blender and trying to run NumCalc.
But here are some bugs in left-ear project and can not finish. It's a bt tricky that I got the left-ear project and right-ear project at same time but the right ear project works well.
3D analysis
Job title: Head-Related Transfer Functions
Step 98, Frequency = 14700 Hz
Direct multilevel fast multipole BEM
Number of equations = 39163
Informations about clusters:
Level Num. of clusters Maximum radius Minimum radius
0 202 0.0305961 0.0087152
1 771 0.0180323 0.00279964
2 3113 0.0108375 0.00175689
resu. nets 3400 0 0
Informations about the FMM expansion:
Level N. expa. terms N. p. theta N. p. phi N. p. sphere
0 19 19 38 722
1 12 12 24 288
2 8 8 16 128
coordinates of the source point: 0.090219 0.00959 0.101964
nsbe must be < MSBE(= 110)
number of the element = 39161
It was a duplicate face in the mesh after hrtf_mesh_grading. Perhaps there is a rare bug in hrtf_mesh_grading, but for now a manual fix is not too difficult if the problem occurs.
/Sergejs
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hi and thanks for looking into this. I assume checking for duplicate faces and vertices would be quite easy to do upon export in blender. If anyone of you has the interest and time to do this let me know and we can look for the best way to implement this. It would also be possible to select the problematic faces or vertices to give the user a good starting point for fixing the problem.
Hi,
I am Wenkang, a master student from Chalmers,Sweden.
Yseterday I got the results from blender and trying to run NumCalc.
But here are some bugs in left-ear project and can not finish. It's a bt tricky that I got the left-ear project and right-ear project at same time but the right ear project works well.
The following is one of the log.text.
istart= 98 iend = 98
---------- NumCalc started: 26/4/2022 19:44:57 ----------
3D analysis
Job title: Head-Related Transfer Functions
Step 98, Frequency = 14700 Hz
Direct multilevel fast multipole BEM
Number of equations = 39163
Informations about clusters:
Level Num. of clusters Maximum radius Minimum radius
0 202 0.0305961 0.0087152
1 771 0.0180323 0.00279964
2 3113 0.0108375 0.00175689
resu. nets 3400 0 0
Informations about the FMM expansion:
Level N. expa. terms N. p. theta N. p. phi N. p. sphere
0 19 19 38 722
1 12 12 24 288
2 8 8 16 128
coordinates of the source point: 0.090219 0.00959 0.101964
nsbe must be < MSBE(= 110)
number of the element = 39161
Looking forward to hearing from you!
All the best,
Wenkang
Hi, we now resolved this issue with "MSBE" https://sourceforge.net/p/mesh2hrtf/wiki/Basic_HRTF_NumCalc_Simulation/#msbe-issue
It was a duplicate face in the mesh after hrtf_mesh_grading. Perhaps there is a rare bug in hrtf_mesh_grading, but for now a manual fix is not too difficult if the problem occurs.
/Sergejs
Hi and thanks for looking into this. I assume checking for duplicate faces and vertices would be quite easy to do upon export in blender. If anyone of you has the interest and time to do this let me know and we can look for the best way to implement this. It would also be possible to select the problematic faces or vertices to give the user a good starting point for fixing the problem.
ps. since we moved the code to GitHub, lets open new issues here in the future https://github.com/Any2HRTF/Mesh2HRTF/issues