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OpenDroneMap / Obj2Tiles

Converts OBJ files to OGC 3D tiles by performing splitting, decimation and conversion
GNU Affero General Public License v3.0
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All the LODs have the same blocks #25

Closed zuixiaosanlang closed 1 year ago

zuixiaosanlang commented 1 year ago

i find all the LODs have the same blocks。

pierotofy commented 1 year ago

It does have HLOD capabilities. Perhaps something is unique about your input that's causing the program to not be able to decimate it.

zuixiaosanlang commented 1 year ago

@pierotofy thank you for reply. i mean different HOD, have different divisions. for example, divisions of LOD-0 is 3, and LOD-1 is 2, LOD-2 is 1. now i found all the divisions of LOD-3,2,1 are 3. image

HeDo88TH commented 1 year ago

Yes, this is by design: every LOD has the same number of divisions. Can you provide your test data?

zuixiaosanlang commented 1 year ago

@HeDo88TH i am sorry. i donot express clearly before.

about the converted result, i found all the folders(LOD-0,1,2) are very close in size.

for example,in my test, LOD-0 is 27.3M, and LOD-1 is 24.2M, and LOD-2 is 20.7M

But i want to get the result like this: LOD-0 is 28M, and LOD-1 is 14M, and LOD-2 is 7M

Top level has smaller size obviously。

i donot know to change the code.

i noticed in the decimate stage, the size of objs are different obviously.(mesh.obj is 62M, mesh_0.obj is 42M, mesh_1.obj is 25M).

any suggest ??

thanks

HeDo88TH commented 1 year ago

The size is mostly correlated to the textures. The OBJ is basically a text file with a bunch of vertices and faces. We could reduce the quality of the textures or their size in the LOD process but it's currently not implemented.