Inconsistent Normal Vector Scaling

[chaeyoon-lee-rae]

🐛 Bug Report

Describe

Modifying the normal scale factor only affects the normal vectors of the top vertices.
The normal vectors of other vertices remain unchanged, leading to inconsistent visualization.

To Reproduce

1. Launch the DX11 renderer project
2. Enable the "Draw Normals" option
3. Adjust the "Normal Scale" parameter to any value

Expected behavior

All vertex normal vectors should uniformly scale to the specified length when the normal scale factor is modified.

Screenshots