Can I enable MSAA in open3d Visualizer?

^{Originally posted by **yaronaddar** May 21, 2023}
hey, I want to change the step of each jump in size from 1.0 to 0.1, so I did it in renderOption.h:

```cpp
...
const double POINT_SIZE_MIN = 1.0;
const double POINT_SIZE_STEP = 0.1; // here was 1.0 so i change it to 0.1
const double POINT_SIZE_DEFAULT = 5.0;
...
```

and afterwords i printed the point size and it changes by 0.1, but the cloud itself wont increase/decrease the pointsize only when it reach to 1.5, 2.6, 3.5, 4.6....

so i think its because I dont have msaa enable? maybe im wrong. can anyone help me with that issue?