search

cnr-isti-vclab / nexus

Nexus is a c++/javascript library for creation and visualization of a batched multiresolution mesh
GNU General Public License v3.0
213 stars 86 forks source link

About QEM effect！ #153

Closed zero406-CC closed 1 year ago

zero406-CC commented 1 year ago

Hi there but i got a problem about nexus，i build a big model about 2GB with 40 million triganles(.stl file extension),when i run the nxsview.exe to check the result ,i found the qem effect is not good enough when the viewer show the coarse level，because my laptop hardware is not good enough so i can not set up the parameters like Mtri or Gpu too big，Is there any suggestion to improve the QEM effect. Looking forward to receiving your reply ！Thank U.Here is a pic: 1

2

3

4

ponchio commented 1 year ago

Nexus uses a quadric simplification algorithm, and this technique does not performs well on cad models.

I never found a simplification/remeshing algorithm (with the additional requirement to be able to lock certain triangles/vertices) designed for CAD models. If one was available I could integrate it into the building software.

Some changes in building parameters might improve the situation (it can be very model dependent), so if you send me a sample, I can have a look at it. (ponchio@gmail.com).

zero406-CC commented 1 year ago

Thanks for your reply！I'll check the source code and give it a try，thank u。