Dep/g3d: Remove unused data members from G3D::Ray

dep/g3dlite/Readme.txt

@@ -31,3 +31,4 @@ G3D-v9.0 hotfix18.diff - 2024-02-17 - ARM64 support on MSVC
 G3D-v9.0 hotfix19.diff - 2024-06-09 - clang build fix on windows
 G3D-v9.0 hotfix20.diff - 2026-05-07 - gcc build fix on windows
 G3D-v9.0 hotfix21.diff - 2026-05-07 - gcc 16 warning fix
+G3D-v9.0 hotfix22.diff - 2026-09-06 - Remove unused data members from G3D::Ray

dep/g3dlite/include/G3D/Ray.h

@@ -34,6 +34,7 @@ private:
     Vector3 m_invDirection;
 
     
+    #if 0
     /** The following are for the "ray slope" optimization from
       "Fast Ray / Axis-Aligned Bounding Box Overlap Tests using Ray Slopes" 
       by Martin Eisemann, Thorsten Grosch, Stefan Müller and Marcus Magnor
@@ -48,6 +49,7 @@ private:
 
     /** Precomputed components */
     float c_xy, c_xz, c_yx, c_yz, c_zx, c_zy;
+#endif
 
 public:
     /** \param direction Assumed to have unit length */

dep/g3dlite/source/Ray.cpp

@@ -22,6 +22,7 @@ void Ray::set(const Vector3& origin, const Vector3& direction) {
     
     m_invDirection = Vector3::one() / direction;
     
+#if 0
     // ray slope
     ibyj = m_direction.x * m_invDirection.y;
     jbyi = m_direction.y * m_invDirection.x;
@@ -120,6 +121,7 @@ void Ray::set(const Vector3& origin, const Vector3& direction) {
             }            
         }
     }
+#endif
 }