Rajdeep Singh abcfdb1035 Fix copy-paste errors in compile_shaders() error messages and comments ...

Fix 6 copy-paste errors in Basic_viewer.h compile_shaders() that were
carried over from the clipping plane shader section:

- Fix 4 incorrect error messages that say 'clipping plane' instead of
  the actual shader name (sphere, cylinder, normal, triangle)
- Remove stale '// clipping plane shader' comment in the cylinder block
- Fix wrong '// Normal shader' section comment on the triangle block

Fixes #9392

2026-03-21 18:38:35 +05:30

..

CGAL

Fix copy-paste errors in compile_shaders() error messages and comments

2026-03-21 18:38:35 +05:30