How do I visualize bounding boxes in different colors?

[brian-h-wang]

Checklist

• [X] I have searched for similar issues.
• [X] I have tested with the latest development wheel.
• [X] I have checked the release documentation and the latest documentation (for master branch).

My Question

Hello,

I'm trying to visualize point clouds and 3D object detection bounding boxes, on a KITTI-format dataset. I'd like to show bounding boxes in different colors, e.g. green for ground truth and red for predictions.

Following the readme and the visualizer example in scripts/demo_obj_det.py, I'm able to run PointPillars inference and show the point cloud + bounding boxes in the visualizer, but I'm not sure how to specify different colors for bounding boxes. Based on #392 it seems like this should be possible?

I am using Open3D 0.14.1, installed with conda in Python 3.8, and the Open3D-ML installation bundled with this.

Thank you for your help with this!

[nek11]

Hello,

Not sure if you still need help with this, but they have a color property [R,G,B]. So with your bounding box you can just set: my_bounding_box.color = [1,0,0] And this would give you a red bounding box, for example.