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multi-GPU memory problems when HashSet initialization

1

### Checklist - [X] I have searched for [similar issues](https://github.com/isl-org/Open3D/issues). - [X] For Python issues, I have tested with the [latest development wheel](http://www.open3d.org/docs/latest/getting_started.html#development-version-pip). - [X] I have checked the [release...

MingChaoSun

Incorrect Open3D PyTorch and CUDA version installed

1

### Checklist - [X] I have searched for [similar issues](https://github.com/isl-org/Open3D/issues). - [X] For Python issues, I have tested with the [latest development wheel](http://www.open3d.org/docs/latest/getting_started.html#development-version-pip). - [X] I have checked the [release...

RichardSnijder

### Checklist - [X] I have searched for [similar issues](https://github.com/isl-org/Open3D/issues). - [X] For Python issues, I have tested with the [latest development wheel](http://www.open3d.org/docs/latest/getting_started.html#development-version-pip). - [X] I have checked the [release...

hzhshok

How do i remove hidden points based on an xyz and roll pitch value in pcd.hidden_point_removal(<viewpoint>, <radius>)?

2

### Checklist - [X] I have searched for [similar issues](https://github.com/isl-org/Open3D/issues). - [X] For Python issues, I have tested with the [latest development wheel](http://www.open3d.org/docs/latest/getting_started.html#development-version-pip). - [X] I have checked the [release...

Hamza-Robotics

### Checklist - [X] I have searched for [similar issues](https://github.com/isl-org/Open3D/issues). - [X] For Python issues, I have tested with the [latest development wheel](http://www.open3d.org/docs/latest/getting_started.html#development-version-pip). - [X] I have checked the [release...

wangmiaowei

### Checklist - [X] I have searched for [similar issues](https://github.com/isl-org/Open3D/issues). - [X] For Python issues, I have tested with the [latest development wheel](http://www.open3d.org/docs/latest/getting_started.html#development-version-pip). - [X] I have checked the [release...

LHRaceIng

### Checklist - [X] I have searched for [similar issues](https://github.com/isl-org/Open3D/issues). - [X] For Python issues, I have tested with the [latest development wheel](http://www.open3d.org/docs/latest/getting_started.html#development-version-pip). - [X] I have checked the [release...

liuzd2017

remesh triangle mesh to improve the quality of original mesh

2

**Is your feature request related to a problem? Please describe.** Yes, lots of input triangle mesh in bad quality **Describe the solution you'd like** some APIs like pygalmesh.remesh_surface do **Describe...

JianqiangDing

[python] o3d.io.read_triangle_mesh changes order of faces and vertices

4

Hello, loading an *.obj file what does not start with face[0] = [0,1,2] gets changed on loading. The mesh is still ok. But the vertex numbers and faces gonna change....

mganglb

using KeyModifier with KeyEvent

2

Hello, I'm building a 3D annotation tool using Open3D gui. I'm using keyEvent class to implement key callbacks (set_on_key of SceneWidget class). I want to use KeyModifier class with KeyEvent,...

AnasIbrahim