How can a mesh always appear the same size no matter where the camera is

Questions
1

how can a mesh always appear the same size no matter how camera move

2

like the gizmo, it always appear the same size

3

It’s scaled with a factor corresponding to the distance to the camera.
In other words, the further away, the bigger.

6

thanks for reply! I tried this in my code , but it didnot work and mesh become very big…

微信截图_20230328170937
微信截图_20230328170937874×526 30.5 KB

is there something wrong with my code?

7

Plase, create a playground so we can take a look.

8

Another trick is to use an orthographic camera instead of a perspective one.

9

thanks for your patient to look at this playground !

10

Here is a quick example :slight_smile:

11

thanks ! you really helped my work !