I want to get the world coordinates of this point by mouse click in my 3dtiles to add billboards, what should I do?
You are probably looking for the Scene#pickPosition function.
Here is a small example that adds billboards at the positions of mouse clicks:
Thank you for your answer, this is exactly what I need, can I ask you another question, what should I do if I want to click on this billboard to pop up a window?
You could use scene#pick() to get a pickedOjbect and make sure it is a instance of Entity and has billboard property.
Thank you for your reply, but what I hope is that clicking on the billboard will pop up this small window at the relative position of the billboard, instead of showing it on the entire screen
See this:
I clicked, but didn’t give me any feedback, this is the solution I hope to achieve, the point below is the billboard, and the top is the window that appears after clicking, what should I do?

Open devtools of your browser when seeing that example. The positions are object so that Cesium SandCastle won’t log them.
I didn’t know, thanks
