Lidar

[WanpengShao]

The problem A clear and concise description of what the bug is.

How to reproduce Explain in detail how to reproduce the bug. You can structure the individual steps as a numbered list, like below.

Hello, I have a question: I added a lidar and a piece of glass to the platform, and a tree. I set the reflectivity parameter of the glass to 1. When I use the lidar to scan the glass, normally, when the lidar hits the glass, there should be a reflection phenomenon. The reflected laser pulse should also hit the tree, and subsequently, the return point from the tree should appear behind the glass. However, I do not see the reflection phenomenon in the Helios platform. Is there something wrong with my settings or my operations?