Documentation for GUI

[Zumbalamambo]

Please add the documentation for GUI. I have tried to follow along with vis_gui.py but it's hard to follow it. I would like to find a way to use set_look_at, set_front, set_zoom options but I'm not able to find a way to do that :(

[1939938853]

Yes.

It is very good to provide some documentation and tutorial for both rendering and gui. For me, I'm especially looking forward to the tutorials for rendering and gui in C++.

Now there are lots of new things in rendering, only studying the API and source code, like the one open3d\visualization\visualizer\GuiVisualizer.cpp, is a little bit difficult.

Is it possible to realize PBR rendering without imgui?

Thank you!

[germanros1987]

We are working on it.

[hduonggithub]

@germanros1987 Do you know how to get the ViewControl in this new GUI to set the following? set_look_at, set_front, set_zoom

With non-gui visualizer, I can get it by vis.get_view_control(). I am looking for a method in the new GUI. Thanks!

[ssheorey]

Documentation for the new filament based visualization: open3d.visualization.gui and open3d.visualization.rendering is available. We are still working on adding more functionality.

This may be useful: open3d.visualization.rendering.Camera.look_at()

[hduonggithub]

@ssheorey

I tried to set 3 values for look_at(), but I got this incompatible error? I am using open3d 0.13.0. Any idea? Thanks

rendering.Camera.look_at((-2.25072473, -0.40637109, 1.09599469), (0, 0, 1), (0, 1, 0)) Traceback (most recent call last): File "", line 1, in TypeError: look_at(): incompatible function arguments. The following argument types are supported: 1. (self: open3d.cpu.pybind.visualization.rendering.Camera, arg0: numpy.ndarray[float32[3, 1]], arg1: numpy.ndarray[float32[3, 1]], arg2: numpy.ndarray[float32[3, 1]]) -> None

Invoked with: (-2.25072473, -0.40637109, 1.09599469), (0, 0, 1), (0, 1, 0)

[ssheorey]

You need to setup the camera for the specific 3D scene that you have created. See here for examples:

https://github.com/intel-isl/Open3D/blob/2674180540c1fb9437e726c487e69097371e53d9/examples/python/gui/online-processing.py#L420