zielon / parallelqslim Goto Github PK
View Code? Open in Web Editor NEWShape Aware Parallel Mesh Simplification Algorithm
License: BSD 2-Clause "Simplified" License
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deepandy dongshenglin yinlinhu ichild1994 grideyes-2010 peterzs dylanooo jackzhousz alexwitt23 knut0815 herculesyuan qianqian121parallelqslim's Issues
Algorithms do not perform well for large model
Hi @Zielon thanks for you share this amazing code for mesh simplification. For my test it works well on small model, but for large model the result seem not very well. Can you help me see where is the problem?
cmd line: ./main --in ~/data/qslim/test.ply --out ~/data/qslim/simply.ply -f -a 7.5 -c 2 -t 4 -r 8
test_data
[WARN] Forced to overwrite existing mesh '/home/ubuntu/data/qslim/simply.ply'.
[INFO] INPUT MESH
Faces: 1629384
Vertices: 1979108
[START] Simplification has begun...
[INFO] ---> Iteration = 1 | step = 24.742% | original = 75.258% | error level = 0.0000327680 | time = 162.63s
[INFO] ---> Iteration = 2 | step = 18.321% | original = 61.470% | error level = 0.0000327680 | time = 113.76s
[INFO] ---> Iteration = 3 | step = 9.769% | original = 55.465% | error level = 0.0001746928 | time = 91.54s
[INFO] ---> Iteration = 4 | step = 3.523% | original = 53.511% | error level = 0.0006857004 | time = 82.57s
[INFO] ---> Iteration = 5 | step = 1.567% | original = 52.672% | error level = 0.0021788900 | time = 79.64s
[INFO] ---> Iteration = 6 | step = 1.132% | original = 52.076% | error level = 0.0059316416 | time = 77.94s
[INFO] ---> Iteration = 7 | step = 1.254% | original = 51.423% | error level = 0.0143489070 | time = 76.57s
[INFO] ---> Iteration = 8 | step = 1.571% | original = 50.616% | error level = 0.0316227766 | time = 76.50s
[INFO] ---> Iteration = 9 | step = 1.992% | original = 49.607% | error level = 0.0646316344 | time = 74.25s
[INFO] ---> Iteration = 10 | step = 2.351% | original = 48.441% | error level = 0.1241250240 | time = 70.37s
[INFO] ---> Iteration = 11 | step = 2.706% | original = 47.130% | error level = 0.2262429955 | time = 67.37s
[INFO] ---> Iteration = 12 | step = 2.935% | original = 45.747% | error level = 0.3944212159 | time = 62.12s
[INFO] ---> Iteration = 13 | step = 3.145% | original = 44.308% | error level = 0.6617355139 | time = 57.60s
[INFO] ---> Iteration = 14 | step = 3.322% | original = 42.837% | error level = 1.0737418240 | time = 53.19s
[INFO] ---> Iteration = 15 | step = 3.469% | original = 41.351% | error level = 1.6918696911 | time = 49.12s
[INFO] ---> Iteration = 16 | step = 3.527% | original = 39.892% | error level = 2.5974296172 | time = 44.51s
[INFO] ---> Iteration = 17 | step = 3.504% | original = 38.494% | error level = 3.8962965788 | time = 40.46s
[INFO] ---> Iteration = 18 | step = 3.421% | original = 37.178% | error level = 5.7243340224 | time = 36.61s
[INFO] ---> Iteration = 19 | step = 3.197% | original = 35.989% | error level = 8.2536245725 | time = 32.49s
[INFO] ---> Iteration = 20 | step = 2.895% | original = 34.947% | error level = 11.6995755485 | time = 28.99s
[END] Simplification of vertices = 65.05%
[INFO] OUTPUT MESH
Faces: 251707
Vertices: 691645
[INFO] Mesh has been saved in [/home/ubuntu/data/qslim/simply.ply]
input_mesh
output_mesh
Segmentation Fault when parsing a .ply with property list uchar uint vertex_indices
Hi, great repo! I was trying to simplify a .ply mesh which is causing a seg fault when executing the script. It seems to crash when it's executing this loop
I checked an example ply that I found online (https://www.artec3d.com/3d-models/bearded-guy-hd) vs my .ply and and I noticed that my .ply header is slightly different, in particular the header that doesn't work is like this (notice the uint in line 18)
vs the header that works
Any ideas as to where the problem might be coming from? thanks!
Mesh Smoothing support
The Readme suggest, that the code implements mesh smoothing. Nevertheless, the current implementation just tries to read a different mesh with the _smoothed suffix and throws an error if that does not exist. Is this intentional?
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