Fix: rename object::material() to object::get_material. Make it compile on Debian 11 GCC.

1 files changed, 1 insertions, 1 deletions

diff --git a/sphere.h b/sphere.h
index a5a935e..8cc1caf 100644
--- a/sphere.h
+++ b/sphere.h
@@ -39,7 +39,7 @@ public:
         return (where - center) / radius;
     }
 
-    class material &material() const override {
+    class material &get_material() const override {
         return materi;
     }