Improve Vector implementations: - Remove unecessary assignment operators - Add normalize() method - Use properties for certain swizzle masks - Add constexpr where appropriate

2025-10-04 10:54:24 -04:00 · 2015-12-31 17:10:34 +01:00 · 2015-12-31 17:10:34 +01:00 · a9e18f9d24
commit a9e18f9d24
parent 83ed206551
20 changed files with 284 additions and 494 deletions
--- a/dtool/src/dtoolbase/dtoolbase_cc.h
+++ b/dtool/src/dtoolbase/dtoolbase_cc.h
@ -39,6 +39,7 @@ using namespace std;
 #define FINAL
 #define OVERRIDE
 #define MOVE(x) x
+#define DEFAULT_CTOR = default

 #define EXPORT_TEMPLATE_CLASS(expcl, exptp, classname)

@ -136,59 +137,83 @@ typedef ios::seekdir ios_seekdir;
 #if defined(__has_extension) // Clang magic.
 #  if __has_extension(cxx_constexpr)
 #    define CONSTEXPR constexpr
-#  else
-#    define CONSTEXPR INLINE
 #  endif
 #  if __has_extension(cxx_noexcept)
 #    define NOEXCEPT noexcept
-#  else
-#    define NOEXCEPT
 #  endif
 #  if __has_extension(cxx_rvalue_references) && (__cplusplus >= 201103L)
 #    define USE_MOVE_SEMANTICS
 #    define MOVE(x) move(x)
-#  else
-#    define MOVE(x) x
 #  endif
 #  if __has_extension(cxx_override_control) && (__cplusplus >= 201103L)
 #    define FINAL final
 #    define OVERRIDE override
-#  else
-#    define FINAL
-#    define OVERRIDE
 #  endif
-#elif defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)) && (__cplusplus >= 201103L)
-// noexcept was introduced in GCC 4.6, constexpr in GCC 4.7, rvalue refs in
-// GCC 4.3.  However, GCC only started defining __cplusplus properly in 4.7.
+#  if __has_extension(cxx_defaulted_functions)
+#     define DEFAULT_CTOR = default
+#  endif
+#elif defined(__GNUC__) && (__cplusplus >= 201103L) // GCC
+
+// GCC defines several macros which we can query.
+// List of all supported builtin macros: https://gcc.gnu.org/projects/cxx0x.html
+#  if __cpp_constexpr >= 200704
+#    define CONSTEXPR constexpr
+#  endif
+
+// Starting at GCC 4.4
+#  if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
+#  define DEFAULT_CTOR = default
+#  endif
+
+// Starting at GCC 4.6
+#  if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
+#    define NOEXCEPT noexcept
+#    define USE_MOVE_SEMANTICS
+#    define FINAL final
+#    define MOVE(x) move(x)
+#  endif
+
+// Starting at GCC 4.7
+#  if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)
+#    define OVERRIDE override
+#  endif
+
+#elif defined(_MSC_VER) && _MSC_VER >= 1900 // Visual Studio 2015
 #  define CONSTEXPR constexpr
 #  define NOEXCEPT noexcept
 #  define USE_MOVE_SEMANTICS
 #  define FINAL final
 #  define OVERRIDE override
 #  define MOVE(x) move(x)
-#elif defined(_MSC_VER) && _MSC_VER >= 1900
-// MSVC 2015 supports all of this goodness.
-#  define CONSTEXPR constexpr
-#  define NOEXCEPT noexcept
-#  define USE_MOVE_SEMANTICS
-#  define FINAL final
-#  define OVERRIDE override
-#  define MOVE(x) move(x)
-#elif defined(_MSC_VER) && _MSC_VER >= 1600
-// MSVC 2010 has move semantics.  Not much else.
-#  define CONSTEXPR INLINE
+#  define DEFAULT_CTOR = default
+#elif defined(_MSC_VER) && _MSC_VER >= 1600 // Visual Studio 2010
 #  define NOEXCEPT throw()
+#  define OVERRIDE override
 #  define USE_MOVE_SEMANTICS
-#  define FINAL
-#  define OVERRIDE
+#  define FINAL sealed
 #  define MOVE(x) move(x)
-#else
+#endif
+
+// Fallbacks if features are not supported
+#ifndef CONSTEXPR
 #  define CONSTEXPR INLINE
+#endif
+#ifndef NOEXCEPT
 #  define NOEXCEPT
-#  define FINAL
-#  define OVERRIDE
+#endif
+#ifndef MOVE
 #  define MOVE(x) x
 #endif
+#ifndef FINAL
+#  define FINAL
+#endif
+#ifndef OVERRIDE
+#  define OVERRIDE
+#endif
+#ifndef DEFAULT_CTOR
+#  define DEFAULT_CTOR {}
+#endif
+

 #if !defined(LINK_ALL_STATIC) && defined(EXPORT_TEMPLATES)
 // This macro must be used to export an instantiated template class
--- a/dtool/src/parser-inc/Eigen/Dense
+++ b/dtool/src/parser-inc/Eigen/Dense
@ -1,4 +1,5 @@
 namespace Eigen {
-   template<typename _Scalar, int _Rows, int _Cols, int _Options, int _MaxRows, int _MaxCols>
-   class Matrix;
+ template<typename _Scalar, int _Rows, int _Cols, int _Options, int _MaxRows, int _MaxCols>
+ class Matrix {
+ };
 };
--- a/panda/src/linmath/lpoint2_src.I
+++ b/panda/src/linmath/lpoint2_src.I
@ -14,49 +14,21 @@


 ////////////////////////////////////////////////////////////////////
-//     Function: LPoint2::Default Constructor
+//     Function: LPoint2::Constructor
 //       Access: Public
-//  Description:
+//  Description: Constructs a new LPoint2 from a LVecBase2
 ////////////////////////////////////////////////////////////////////
 INLINE_LINMATH FLOATNAME(LPoint2)::
-FLOATNAME(LPoint2)() {
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LPoint2::Copy Constructor
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LPoint2)::
-FLOATNAME(LPoint2)(const FLOATNAME(LVecBase2) &copy) : FLOATNAME(LVecBase2)(copy) {
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LPoint2::Copy Assignment Operator
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LPoint2) &FLOATNAME(LPoint2)::
-operator = (const FLOATNAME(LVecBase2) &copy) {
-  FLOATNAME(LVecBase2)::operator = (copy);
-  return *this;
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LPoint2::Copy Fill Operator
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LPoint2) &FLOATNAME(LPoint2)::
-operator = (FLOATTYPE fill_value) {
-  FLOATNAME(LVecBase2)::operator = (fill_value);
-  return *this;
+FLOATNAME(LPoint2)(const FLOATNAME(LVecBase2)& copy) :
+  FLOATNAME(LVecBase2)(copy)
+{
 }

 ////////////////////////////////////////////////////////////////////
 //     Function: LPoint2::Constructor
 //       Access: Public
-//  Description:
+//  Description: Constructs a new LPoint2 all components set to the
+//               fill value.
 ////////////////////////////////////////////////////////////////////
 INLINE_LINMATH FLOATNAME(LPoint2)::
 FLOATNAME(LPoint2)(FLOATTYPE fill_value) :
@ -67,7 +39,7 @@ FLOATNAME(LPoint2)(FLOATTYPE fill_value) :
 ////////////////////////////////////////////////////////////////////
 //     Function: LPoint2::Constructor
 //       Access: Public
-//  Description:
+//  Description: Constructs a new LPoint2 with the given components
 ////////////////////////////////////////////////////////////////////
 INLINE_LINMATH FLOATNAME(LPoint2)::
 FLOATNAME(LPoint2)(FLOATTYPE x, FLOATTYPE y) :
@ -186,6 +158,18 @@ operator / (FLOATTYPE scalar) const {
 }

 #ifndef FLOATTYPE_IS_INT
+////////////////////////////////////////////////////////////////////
+//     Function: LPoint2::normalized
+//       Access: Published
+//  Description: Normalizes the vector and returns the normalized
+//               vector as a copy. If the vector was a zero-length
+//               vector, a zero length vector will be returned.
+////////////////////////////////////////////////////////////////////
+INLINE_LINMATH FLOATNAME(LPoint2) FLOATNAME(LPoint2)::
+normalized() const {
+  return FLOATNAME(LVecBase2)::normalized();
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: LPoint2::project
 //       Access: Published
--- a/panda/src/linmath/lpoint2_src.h
+++ b/panda/src/linmath/lpoint2_src.h
@ -19,10 +19,9 @@
 ////////////////////////////////////////////////////////////////////
 class EXPCL_PANDA_LINMATH FLOATNAME(LPoint2) : public FLOATNAME(LVecBase2) {
 PUBLISHED:
-  INLINE_LINMATH FLOATNAME(LPoint2)();
-  INLINE_LINMATH FLOATNAME(LPoint2)(const FLOATNAME(LVecBase2) &copy);
-  INLINE_LINMATH FLOATNAME(LPoint2) &operator = (const FLOATNAME(LVecBase2) &copy);
-  INLINE_LINMATH FLOATNAME(LPoint2) &operator = (FLOATTYPE fill_value);
+
+  INLINE_LINMATH FLOATNAME(LPoint2)() DEFAULT_CTOR;
+  INLINE_LINMATH FLOATNAME(LPoint2)(const FLOATNAME(LVecBase2)& copy);
  INLINE_LINMATH FLOATNAME(LPoint2)(FLOATTYPE fill_value);
  INLINE_LINMATH FLOATNAME(LPoint2)(FLOATTYPE x, FLOATTYPE y);

@ -51,6 +50,7 @@ PUBLISHED:
  INLINE_LINMATH FLOATNAME(LPoint2) operator / (FLOATTYPE scalar) const;

 #ifndef FLOATTYPE_IS_INT
+  INLINE_LINMATH FLOATNAME(LPoint2) normalized() const;
  INLINE_LINMATH FLOATNAME(LPoint2) project(const FLOATNAME(LVecBase2) &onto) const;
 #endif

--- a/panda/src/linmath/lpoint3_src.I
+++ b/panda/src/linmath/lpoint3_src.I
@ -13,15 +13,6 @@
 ////////////////////////////////////////////////////////////////////


-////////////////////////////////////////////////////////////////////
-//     Function: LPoint3::Default Constructor
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LPoint3)::
-FLOATNAME(LPoint3)() {
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: LPoint3::Copy Constructor
 //       Access: Public
@ -31,28 +22,6 @@ INLINE_LINMATH FLOATNAME(LPoint3)::
 FLOATNAME(LPoint3)(const FLOATNAME(LVecBase3) &copy) : FLOATNAME(LVecBase3)(copy) {
 }

-////////////////////////////////////////////////////////////////////
-//     Function: LPoint3::Copy Assignment Operator
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LPoint3) &FLOATNAME(LPoint3)::
-operator = (const FLOATNAME(LVecBase3) &copy) {
-  FLOATNAME(LVecBase3)::operator = (copy);
-  return *this;
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LPoint3::Copy Fill Operator
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LPoint3) &FLOATNAME(LPoint3)::
-operator = (FLOATTYPE fill_value) {
-  FLOATNAME(LVecBase3)::operator = (fill_value);
-  return *this;
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: LPoint3::Constructor
 //       Access: Public
@ -230,6 +199,18 @@ cross(const FLOATNAME(LVecBase3) &other) const {
 }

 #ifndef FLOATTYPE_IS_INT
+////////////////////////////////////////////////////////////////////
+//     Function: LPoint3::normalized
+//       Access: Published
+//  Description: Normalizes the vector and returns the normalized
+//               vector as a copy. If the vector was a zero-length
+//               vector, a zero length vector will be returned.
+////////////////////////////////////////////////////////////////////
+INLINE_LINMATH FLOATNAME(LPoint3) FLOATNAME(LPoint3)::
+normalized() const {
+  return FLOATNAME(LVecBase3)::normalized();
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: LPoint3::project
 //       Access: Published
--- a/panda/src/linmath/lpoint3_src.h
+++ b/panda/src/linmath/lpoint3_src.h
@ -24,10 +24,8 @@
 ////////////////////////////////////////////////////////////////////
 class EXPCL_PANDA_LINMATH FLOATNAME(LPoint3) : public FLOATNAME(LVecBase3) {
 PUBLISHED:
-  INLINE_LINMATH FLOATNAME(LPoint3)();
+  INLINE_LINMATH FLOATNAME(LPoint3)() DEFAULT_CTOR;
  INLINE_LINMATH FLOATNAME(LPoint3)(const FLOATNAME(LVecBase3) &copy);
-  INLINE_LINMATH FLOATNAME(LPoint3) &operator = (const FLOATNAME(LVecBase3) &copy);
-  INLINE_LINMATH FLOATNAME(LPoint3) &operator = (FLOATTYPE fill_value);
  INLINE_LINMATH FLOATNAME(LPoint3)(FLOATTYPE fill_value);
  INLINE_LINMATH FLOATNAME(LPoint3)(FLOATTYPE x, FLOATTYPE y, FLOATTYPE z);
  INLINE_LINMATH FLOATNAME(LPoint3)(const FLOATNAME(LVecBase2) &copy, FLOATTYPE z);
@ -61,6 +59,7 @@ PUBLISHED:
  INLINE_LINMATH FLOATNAME(LPoint3) cross(const FLOATNAME(LVecBase3) &other) const;

 #ifndef FLOATTYPE_IS_INT
+  INLINE_LINMATH FLOATNAME(LPoint3) normalized() const;
  INLINE_LINMATH FLOATNAME(LPoint3) project(const FLOATNAME(LVecBase3) &onto) const;
 #endif

--- a/panda/src/linmath/lpoint4_src.I
+++ b/panda/src/linmath/lpoint4_src.I
@ -13,15 +13,6 @@
 ////////////////////////////////////////////////////////////////////


-////////////////////////////////////////////////////////////////////
-//     Function: LPoint4::Default Constructor
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LPoint4)::
-FLOATNAME(LPoint4)() {
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: LPoint4::Copy Constructor
 //       Access: Public
@ -31,28 +22,6 @@ INLINE_LINMATH FLOATNAME(LPoint4)::
 FLOATNAME(LPoint4)(const FLOATNAME(LVecBase4) &copy) : FLOATNAME(LVecBase4)(copy) {
 }

-////////////////////////////////////////////////////////////////////
-//     Function: LPoint4::Copy Assignment Operator
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LPoint4) &FLOATNAME(LPoint4)::
-operator = (const FLOATNAME(LVecBase4) &copy) {
-  FLOATNAME(LVecBase4)::operator = (copy);
-  return *this;
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LPoint4::Copy Fill Operator
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LPoint4) &FLOATNAME(LPoint4)::
-operator = (FLOATTYPE fill_value) {
-  FLOATNAME(LVecBase4)::operator = (fill_value);
-  return *this;
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: LPoint4::Constructor
 //       Access: Public
@ -217,6 +186,19 @@ operator / (FLOATTYPE scalar) const {
 }

 #ifndef FLOATTYPE_IS_INT
+
+////////////////////////////////////////////////////////////////////
+//     Function: LPoint4::normalized
+//       Access: Published
+//  Description: Normalizes the vector and returns the normalized
+//               vector as a copy. If the vector was a zero-length
+//               vector, a zero length vector will be returned.
+////////////////////////////////////////////////////////////////////
+INLINE_LINMATH FLOATNAME(LPoint4) FLOATNAME(LPoint4)::
+normalized() const {
+  return FLOATNAME(LVecBase4)::normalized();
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: LPoint4::project
 //       Access: Published
--- a/panda/src/linmath/lpoint4_src.h
+++ b/panda/src/linmath/lpoint4_src.h
@ -18,10 +18,8 @@
 ////////////////////////////////////////////////////////////////////
 class EXPCL_PANDA_LINMATH FLOATNAME(LPoint4) : public FLOATNAME(LVecBase4) {
 PUBLISHED:
-  INLINE_LINMATH FLOATNAME(LPoint4)();
+  INLINE_LINMATH FLOATNAME(LPoint4)() DEFAULT_CTOR;
  INLINE_LINMATH FLOATNAME(LPoint4)(const FLOATNAME(LVecBase4) &copy);
-  INLINE_LINMATH FLOATNAME(LPoint4) &operator = (const FLOATNAME(LVecBase4) &copy);
-  INLINE_LINMATH FLOATNAME(LPoint4) &operator = (FLOATTYPE fill_value);
  INLINE_LINMATH FLOATNAME(LPoint4)(FLOATTYPE fill_value);
  INLINE_LINMATH FLOATNAME(LPoint4)(FLOATTYPE x, FLOATTYPE y, FLOATTYPE z, FLOATTYPE w);
  INLINE_LINMATH FLOATNAME(LPoint4)(const FLOATNAME(LVecBase3) &copy, FLOATTYPE w);
@ -53,6 +51,7 @@ PUBLISHED:
  INLINE_LINMATH FLOATNAME(LPoint4) operator / (FLOATTYPE scalar) const;

 #ifndef FLOATTYPE_IS_INT
+  INLINE_LINMATH FLOATNAME(LPoint4) normalized() const;
  INLINE_LINMATH FLOATNAME(LPoint4) project(const FLOATNAME(LVecBase4) &onto) const;
 #endif

--- a/panda/src/linmath/lvecBase2_src.I
+++ b/panda/src/linmath/lvecBase2_src.I
@ -12,48 +12,6 @@
 //
 ////////////////////////////////////////////////////////////////////

-
-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase2::Default Constructor
-//       Access: Published
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase2)::
-FLOATNAME(LVecBase2)() {
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase2::Copy Constructor
-//       Access: Published
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase2)::
-FLOATNAME(LVecBase2)(const FLOATNAME(LVecBase2) &copy) : _v(copy._v) {
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase2::Copy Assignment Operator
-//       Access: Published
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase2) &FLOATNAME(LVecBase2)::
-operator = (const FLOATNAME(LVecBase2) &copy) {
-  TAU_PROFILE("void LVecBase2::operator = (LVecBase2 &)", " ", TAU_USER);
-  _v = copy._v;
-  return *this;
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase2::Fill Assignment Operator
-//       Access: Published
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase2) &FLOATNAME(LVecBase2)::
-operator = (FLOATTYPE fill_value) {
-  fill(fill_value);
-  return *this;
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: LVecBase2::Constructor
 //       Access: Published
@ -107,15 +65,6 @@ unit_y() {
  return _unit_y;
 }

-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase2::Destructor
-//       Access: Published
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase2)::
-~FLOATNAME(LVecBase2)() {
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: LVecBase2::Indexing Operator
 //       Access: Published
@ -143,7 +92,7 @@ operator [](int i) {
 //       Access: Published, Static
 //  Description: Returns 2: the number of components of a LVecBase2.
 ////////////////////////////////////////////////////////////////////
-INLINE_LINMATH int FLOATNAME(LVecBase2)::
+CONSTEXPR int FLOATNAME(LVecBase2)::
 size() {
  return 2;
 }
@ -274,8 +223,8 @@ get_data() const {
 //       Access: Published
 //  Description: Returns the number of elements in the vector, two.
 ////////////////////////////////////////////////////////////////////
-INLINE_LINMATH int FLOATNAME(LVecBase2)::
-get_num_components() const {
+CONSTEXPR int FLOATNAME(LVecBase2)::
+get_num_components() {
  return 2;
 }

@ -418,6 +367,22 @@ normalize() {
  return true;
 }

+////////////////////////////////////////////////////////////////////
+//     Function: LVecBase2::normalized
+//       Access: Published
+//  Description: Normalizes the vector and returns the normalized
+//               vector as a copy. If the vector was a zero-length
+//               vector, a zero length vector will be returned.
+////////////////////////////////////////////////////////////////////
+INLINE_LINMATH FLOATNAME(LVecBase2) FLOATNAME(LVecBase2)::
+normalized() const {
+  FLOATTYPE l2 = length_squared();
+  if (l2 == (FLOATTYPE)0.0f) {
+    return FLOATNAME(LVecBase2)(0.0f);
+  }
+  return (*this) / csqrt(l2);
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: LVecBase2::project
 //       Access: Published
--- a/panda/src/linmath/lvecBase2_src.h
+++ b/panda/src/linmath/lvecBase2_src.h
@ -34,38 +34,38 @@ PUBLISHED:
 #endif
  };

-  INLINE_LINMATH FLOATNAME(LVecBase2)();
-  INLINE_LINMATH FLOATNAME(LVecBase2)(const FLOATNAME(LVecBase2) &copy);
-  INLINE_LINMATH FLOATNAME(LVecBase2) &operator = (const FLOATNAME(LVecBase2) &copy);
-  INLINE_LINMATH FLOATNAME(LVecBase2) &operator = (FLOATTYPE fill_value);
+  INLINE_LINMATH FLOATNAME(LVecBase2)() DEFAULT_CTOR;
  INLINE_LINMATH FLOATNAME(LVecBase2)(FLOATTYPE fill_value);
  INLINE_LINMATH FLOATNAME(LVecBase2)(FLOATTYPE x, FLOATTYPE y);
+
  ALLOC_DELETED_CHAIN(FLOATNAME(LVecBase2));

  INLINE_LINMATH static const FLOATNAME(LVecBase2) &zero();
  INLINE_LINMATH static const FLOATNAME(LVecBase2) &unit_x();
  INLINE_LINMATH static const FLOATNAME(LVecBase2) &unit_y();

-  INLINE_LINMATH ~FLOATNAME(LVecBase2)();
-
  EXTENSION(INLINE_LINMATH PyObject *__reduce__(PyObject *self) const);
  EXTENSION(INLINE_LINMATH PyObject *__getattr__(PyObject *self, const string &attr_name) const);
  EXTENSION(INLINE_LINMATH int __setattr__(PyObject *self, const string &attr_name, PyObject *assign));

  INLINE_LINMATH FLOATTYPE operator [](int i) const;
  INLINE_LINMATH FLOATTYPE &operator [](int i);
-  INLINE_LINMATH static int size();
+  CONSTEXPR static int size();

  INLINE_LINMATH bool is_nan() const;

  INLINE_LINMATH FLOATTYPE get_cell(int i) const;
+  INLINE_LINMATH void set_cell(int i, FLOATTYPE value);
+
  INLINE_LINMATH FLOATTYPE get_x() const;
  INLINE_LINMATH FLOATTYPE get_y() const;
-
-  INLINE_LINMATH void set_cell(int i, FLOATTYPE value);
  INLINE_LINMATH void set_x(FLOATTYPE value);
  INLINE_LINMATH void set_y(FLOATTYPE value);

+PUBLISHED:
+  MAKE_PROPERTY(x, get_x, set_x);
+  MAKE_PROPERTY(y, get_y, set_y);
+
  // These next functions add to an existing value.
  // i.e. foo.set_x(foo.get_x() + value)
  // These are useful to reduce overhead in scripting
@ -75,7 +75,7 @@ PUBLISHED:
  INLINE_LINMATH void add_y(FLOATTYPE value);

  INLINE_LINMATH const FLOATTYPE *get_data() const;
-  INLINE_LINMATH int get_num_components() const;
+  CONSTEXPR static int get_num_components();

 public:
  INLINE_LINMATH iterator begin();
@ -94,6 +94,7 @@ PUBLISHED:
 #ifndef FLOATTYPE_IS_INT
  INLINE_LINMATH FLOATTYPE length() const;
  INLINE_LINMATH bool normalize();
+  INLINE_LINMATH FLOATNAME(LVecBase2) normalized() const;
  INLINE_LINMATH FLOATNAME(LVecBase2) project(const FLOATNAME(LVecBase2) &onto) const;
 #endif

--- a/panda/src/linmath/lvecBase3_src.I
+++ b/panda/src/linmath/lvecBase3_src.I
@ -13,47 +13,6 @@
 ////////////////////////////////////////////////////////////////////


-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase3::Default Constructor
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase3)::
-FLOATNAME(LVecBase3)() {
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase3::Copy Constructor
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase3)::
-FLOATNAME(LVecBase3)(const FLOATNAME(LVecBase3) &copy) : _v(copy._v) {
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase3::Copy Assignment Operator
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase3) &FLOATNAME(LVecBase3)::
-operator = (const FLOATNAME(LVecBase3) &copy) {
-  TAU_PROFILE("void LVecBase3::operator =(LVecBase3 &)", " ", TAU_USER);
-  _v = copy._v;
-  return *this;
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase3::Fill Assignment Operator
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase3) &FLOATNAME(LVecBase3)::
-operator = (FLOATTYPE fill_value) {
-  fill(fill_value);
-  return *this;
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: LVecBase3::Constructor
 //       Access: Public
@ -128,15 +87,6 @@ unit_z() {
  return _unit_z;
 }

-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase3::Destructor
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase3)::
-~FLOATNAME(LVecBase3)() {
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: LVecBase3::Indexing Operator
 //       Access: Public
@ -164,7 +114,7 @@ operator [](int i) {
 //       Access: Public, Static
 //  Description: Returns 3: the number of components of a LVecBase3.
 ////////////////////////////////////////////////////////////////////
-INLINE_LINMATH int FLOATNAME(LVecBase3)::
+CONSTEXPR int FLOATNAME(LVecBase3)::
 size() {
  return 3;
 }
@ -358,8 +308,8 @@ get_data() const {
 //       Access: Public
 //  Description: Returns the number of elements in the vector, three.
 ////////////////////////////////////////////////////////////////////
-INLINE_LINMATH int FLOATNAME(LVecBase3)::
-get_num_components() const {
+CONSTEXPR int FLOATNAME(LVecBase3)::
+get_num_components() {
  return 3;
 }

@ -509,6 +459,22 @@ normalize() {
  return true;
 }

+////////////////////////////////////////////////////////////////////
+//     Function: LVecBase3::normalized
+//       Access: Published
+//  Description: Normalizes the vector and returns the normalized
+//               vector as a copy. If the vector was a zero-length
+//               vector, a zero length vector will be returned.
+////////////////////////////////////////////////////////////////////
+INLINE_LINMATH FLOATNAME(LVecBase3) FLOATNAME(LVecBase3)::
+normalized() const {
+  FLOATTYPE l2 = length_squared();
+  if (l2 == (FLOATTYPE)0.0f) {
+    return FLOATNAME(LVecBase3)(0.0f);
+  }
+  return (*this) / csqrt(l2);
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: LVecBase3::project
 //       Access: Published
--- a/panda/src/linmath/lvecBase3_src.h
+++ b/panda/src/linmath/lvecBase3_src.h
@ -34,10 +34,7 @@ PUBLISHED:
 #endif
  };

-  INLINE_LINMATH FLOATNAME(LVecBase3)();
-  INLINE_LINMATH FLOATNAME(LVecBase3)(const FLOATNAME(LVecBase3) &copy);
-  INLINE_LINMATH FLOATNAME(LVecBase3) &operator = (const FLOATNAME(LVecBase3) &copy);
-  INLINE_LINMATH FLOATNAME(LVecBase3) &operator = (FLOATTYPE fill_value);
+  INLINE_LINMATH FLOATNAME(LVecBase3)() DEFAULT_CTOR;
  INLINE_LINMATH FLOATNAME(LVecBase3)(FLOATTYPE fill_value);
  INLINE_LINMATH FLOATNAME(LVecBase3)(FLOATTYPE x, FLOATTYPE y, FLOATTYPE z);
  INLINE_LINMATH FLOATNAME(LVecBase3)(const FLOATNAME(LVecBase2) &copy, FLOATTYPE z);
@ -48,15 +45,13 @@ PUBLISHED:
  INLINE_LINMATH static const FLOATNAME(LVecBase3) &unit_y();
  INLINE_LINMATH static const FLOATNAME(LVecBase3) &unit_z();

-  INLINE_LINMATH ~FLOATNAME(LVecBase3)();
-
  EXTENSION(INLINE_LINMATH PyObject *__reduce__(PyObject *self) const);
  EXTENSION(INLINE_LINMATH PyObject *__getattr__(PyObject *self, const string &attr_name) const);
  EXTENSION(INLINE_LINMATH int __setattr__(PyObject *self, const string &attr_name, PyObject *assign));

  INLINE_LINMATH FLOATTYPE operator [](int i) const;
  INLINE_LINMATH FLOATTYPE &operator [](int i);
-  INLINE_LINMATH static int size();
+  CONSTEXPR static int size();

  INLINE_LINMATH bool is_nan() const;

@ -74,6 +69,12 @@ PUBLISHED:
  INLINE_LINMATH FLOATNAME(LVecBase2) get_xz() const;
  INLINE_LINMATH FLOATNAME(LVecBase2) get_yz() const;

+PUBLISHED:
+  MAKE_PROPERTY(x, get_x, set_x);
+  MAKE_PROPERTY(y, get_y, set_y);
+  MAKE_PROPERTY(z, get_z, set_z);
+  MAKE_PROPERTY(xy, get_xy);
+
  // These next functions add to an existing value.
  // i.e. foo.set_x(foo.get_x() + value)
  // These are useful to reduce overhead in scripting
@ -84,7 +85,7 @@ PUBLISHED:
  INLINE_LINMATH void add_z(FLOATTYPE value);

  INLINE_LINMATH const FLOATTYPE *get_data() const;
-  INLINE_LINMATH int get_num_components() const;
+  CONSTEXPR static int get_num_components();

 public:
  INLINE_LINMATH iterator begin();
@ -103,6 +104,7 @@ PUBLISHED:
 #ifndef FLOATTYPE_IS_INT
  INLINE_LINMATH FLOATTYPE length() const;
  INLINE_LINMATH bool normalize();
+  INLINE_LINMATH FLOATNAME(LVecBase3) normalized() const;
  INLINE_LINMATH FLOATNAME(LVecBase3) project(const FLOATNAME(LVecBase3) &onto) const;
 #endif

--- a/panda/src/linmath/lvecBase4_src.I
+++ b/panda/src/linmath/lvecBase4_src.I
@ -13,24 +13,6 @@
 ////////////////////////////////////////////////////////////////////


-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase4::Default Constructor
-//       Access: Published
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase4)::
-FLOATNAME(LVecBase4)() {
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase4::Copy Constructor
-//       Access: Published
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase4)::
-FLOATNAME(LVecBase4)(const FLOATNAME(LVecBase4) &copy) : _v(copy._v) {
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: LVecBase4::Copy Constructor
 //       Access: Public
@ -41,40 +23,6 @@ FLOATNAME(LVecBase4)(const FLOATNAME(UnalignedLVecBase4) &copy) {
  set(copy[0], copy[1], copy[2], copy[3]);
 }

-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase4::Copy Assignment Operator
-//       Access: Published
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase4) &FLOATNAME(LVecBase4)::
-operator = (const FLOATNAME(LVecBase4) &copy) {
-  TAU_PROFILE("void LVecBase4::operator = (LVecBase4 &)", " ", TAU_USER);
-  _v = copy._v;
-  return *this;
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase4::Copy Assignment Operator
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase4) &FLOATNAME(LVecBase4)::
-operator = (const FLOATNAME(UnalignedLVecBase4) &copy) {
-  set(copy[0], copy[1], copy[2], copy[3]);
-  return *this;
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase4::Fill Assignment Operator
-//       Access: Published
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase4) &FLOATNAME(LVecBase4)::
-operator = (FLOATTYPE fill_value) {
-  fill(fill_value);
-  return *this;
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: LVecBase4::Constructor
 //       Access: Published
@ -128,15 +76,6 @@ FLOATNAME(LVecBase4)(const FLOATNAME(LVector3) &vector) {
  set(vector[0], vector[1], vector[2], 0);
 }

-////////////////////////////////////////////////////////////////////
-//     Function: LVecBase4::Destructor
-//       Access: Published
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVecBase4)::
-~FLOATNAME(LVecBase4)() {
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: LVecBase4::zero Named Constructor
 //       Access: Published
@ -214,7 +153,7 @@ operator [](int i) {
 //       Access: Published, Static
 //  Description: Returns 4: the number of components of a LVecBase4.
 ////////////////////////////////////////////////////////////////////
-INLINE_LINMATH int FLOATNAME(LVecBase4)::
+CONSTEXPR int FLOATNAME(LVecBase4)::
 size() {
  return 4;
 }
@ -286,6 +225,26 @@ get_w() const {
  return _v(3);
 }

+////////////////////////////////////////////////////////////////////
+//     Function: LVecBase4::get_xyz
+//       Access: Published
+//  Description: Returns the x, y and z component of this vector
+////////////////////////////////////////////////////////////////////
+INLINE_LINMATH FLOATNAME(LVecBase3) FLOATNAME(LVecBase4)::
+get_xyz() const {
+  return FLOATNAME(LVecBase3)(_v(0), _v(1), _v(2));
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: LVecBase4::get_xy
+//       Access: Published
+//  Description: Returns the x and y component of this vector
+////////////////////////////////////////////////////////////////////
+INLINE_LINMATH FLOATNAME(LVecBase2) FLOATNAME(LVecBase4)::
+get_xy() const {
+  return FLOATNAME(LVecBase2)(_v(0), _v(1));
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: LVecBase4::set_cell
 //       Access: Published
@ -405,8 +364,8 @@ get_data() const {
 //       Access: Published
 //  Description: Returns the number of elements in the vector, four.
 ////////////////////////////////////////////////////////////////////
-INLINE_LINMATH int FLOATNAME(LVecBase4)::
-get_num_components() const {
+CONSTEXPR int FLOATNAME(LVecBase4)::
+get_num_components() {
  return 4;
 }

@ -559,6 +518,22 @@ normalize() {
  return true;
 }

+////////////////////////////////////////////////////////////////////
+//     Function: LVecBase4::normalized
+//       Access: Published
+//  Description: Normalizes the vector and returns the normalized
+//               vector as a copy. If the vector was a zero-length
+//               vector, a zero length vector will be returned.
+////////////////////////////////////////////////////////////////////
+INLINE_LINMATH FLOATNAME(LVecBase4) FLOATNAME(LVecBase4)::
+normalized() const {
+  FLOATTYPE l2 = length_squared();
+  if (l2 == (FLOATTYPE)0.0f) {
+    return FLOATNAME(LVecBase4)(0.0f);
+  }
+  return (*this) / csqrt(l2);
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: LVecBase4::project
 //       Access: Published
@ -1107,15 +1082,6 @@ read_datagram(DatagramIterator &source) {
 #endif
 }

-////////////////////////////////////////////////////////////////////
-//     Function: UnalignedLVecBase4::Default Constructor
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(UnalignedLVecBase4)::
-FLOATNAME(UnalignedLVecBase4)() {
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: UnalignedLVecBase4::Copy Constructor
 //       Access: Public
@ -1126,38 +1092,6 @@ FLOATNAME(UnalignedLVecBase4)(const FLOATNAME(LVecBase4) &copy) {
  set(copy[0], copy[1], copy[2], copy[3]);
 }

-////////////////////////////////////////////////////////////////////
-//     Function: UnalignedLVecBase4::Copy Constructor
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(UnalignedLVecBase4)::
-FLOATNAME(UnalignedLVecBase4)(const FLOATNAME(UnalignedLVecBase4) &copy) : _v(copy._v) {
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: UnalignedLVecBase4::Copy Assignment Operator
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(UnalignedLVecBase4) &FLOATNAME(UnalignedLVecBase4)::
-operator = (const FLOATNAME(LVecBase4) &copy) {
-  set(copy[0], copy[1], copy[2], copy[3]);
-  return *this;
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: UnalignedLVecBase4::Copy Assignment Operator
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(UnalignedLVecBase4) &FLOATNAME(UnalignedLVecBase4)::
-operator = (const FLOATNAME(UnalignedLVecBase4) &copy) {
-  TAU_PROFILE("void UnalignedLVecBase4::operator =(UnalignedLVecBase4 &)", " ", TAU_USER);
-  _v = copy._v;
-  return *this;
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: UnalignedLVecBase4::Constructor
 //       Access: Public
@ -1210,7 +1144,7 @@ operator [](int i) {
 //       Access: Public, Static
 //  Description: Returns 4: the number of components of a LVecBase4.
 ////////////////////////////////////////////////////////////////////
-INLINE_LINMATH int FLOATNAME(UnalignedLVecBase4)::
+CONSTEXPR int FLOATNAME(UnalignedLVecBase4)::
 size() {
  return 4;
 }
@ -1232,7 +1166,7 @@ get_data() const {
 //       Access: Public
 //  Description: Returns the number of elements in the vector, 4.
 ////////////////////////////////////////////////////////////////////
-INLINE_LINMATH int FLOATNAME(UnalignedLVecBase4)::
-get_num_components() const {
+CONSTEXPR int FLOATNAME(UnalignedLVecBase4)::
+get_num_components() {
  return 4;
 }
--- a/panda/src/linmath/lvecBase4_src.h
+++ b/panda/src/linmath/lvecBase4_src.h
@ -39,14 +39,10 @@ PUBLISHED:
 #endif
  };

-  INLINE_LINMATH FLOATNAME(LVecBase4)();
-  INLINE_LINMATH FLOATNAME(LVecBase4)(const FLOATNAME(LVecBase4) &copy);
-  INLINE_LINMATH FLOATNAME(LVecBase4)(const FLOATNAME(UnalignedLVecBase4) &copy);
-  INLINE_LINMATH FLOATNAME(LVecBase4) &operator = (const FLOATNAME(LVecBase4) &copy);
-  INLINE_LINMATH FLOATNAME(LVecBase4) &operator = (const FLOATNAME(UnalignedLVecBase4) &copy);
-  INLINE_LINMATH FLOATNAME(LVecBase4) &operator = (FLOATTYPE fill_value);
+  INLINE_LINMATH FLOATNAME(LVecBase4)() DEFAULT_CTOR;
  INLINE_LINMATH FLOATNAME(LVecBase4)(FLOATTYPE fill_value);
  INLINE_LINMATH FLOATNAME(LVecBase4)(FLOATTYPE x, FLOATTYPE y, FLOATTYPE z, FLOATTYPE w);
+  INLINE_LINMATH FLOATNAME(LVecBase4)(const FLOATNAME(UnalignedLVecBase4) &copy);
  INLINE_LINMATH FLOATNAME(LVecBase4)(const FLOATNAME(LVecBase3) &copy, FLOATTYPE w);
  INLINE_LINMATH FLOATNAME(LVecBase4)(const FLOATNAME(LPoint3) &point);
  INLINE_LINMATH FLOATNAME(LVecBase4)(const FLOATNAME(LVector3) &vector);
@ -58,30 +54,39 @@ PUBLISHED:
  INLINE_LINMATH static const FLOATNAME(LVecBase4) &unit_z();
  INLINE_LINMATH static const FLOATNAME(LVecBase4) &unit_w();

-  INLINE_LINMATH ~FLOATNAME(LVecBase4)();
-
  EXTENSION(INLINE_LINMATH PyObject *__reduce__(PyObject *self) const);
  EXTENSION(INLINE_LINMATH PyObject *__getattr__(PyObject *self, const string &attr_name) const);
  EXTENSION(INLINE_LINMATH int __setattr__(PyObject *self, const string &attr_name, PyObject *assign));

  INLINE_LINMATH FLOATTYPE operator [](int i) const;
  INLINE_LINMATH FLOATTYPE &operator [](int i);
-  INLINE_LINMATH static int size();
+  CONSTEXPR static int size();

  INLINE_LINMATH bool is_nan() const;

  INLINE_LINMATH FLOATTYPE get_cell(int i) const;
+  INLINE_LINMATH void set_cell(int i, FLOATTYPE value);
+
  INLINE_LINMATH FLOATTYPE get_x() const;
  INLINE_LINMATH FLOATTYPE get_y() const;
  INLINE_LINMATH FLOATTYPE get_z() const;
  INLINE_LINMATH FLOATTYPE get_w() const;

-  INLINE_LINMATH void set_cell(int i, FLOATTYPE value);
+  INLINE_LINMATH FLOATNAME(LVecBase3) get_xyz() const;
+  INLINE_LINMATH FLOATNAME(LVecBase2) get_xy() const;
+
  INLINE_LINMATH void set_x(FLOATTYPE value);
  INLINE_LINMATH void set_y(FLOATTYPE value);
  INLINE_LINMATH void set_z(FLOATTYPE value);
  INLINE_LINMATH void set_w(FLOATTYPE value);

+PUBLISHED:
+  MAKE_PROPERTY(x, get_x, set_x);
+  MAKE_PROPERTY(y, get_y, set_y);
+  MAKE_PROPERTY(z, get_z, set_z);
+  MAKE_PROPERTY(xy, get_xy);
+  MAKE_PROPERTY(xyz, get_xyz);
+
  // These next functions add to an existing value.
  // i.e. foo.set_x(foo.get_x() + value)
  // These are useful to reduce overhead in scripting
@ -93,7 +98,7 @@ PUBLISHED:
  INLINE_LINMATH void add_w(FLOATTYPE value);

  INLINE_LINMATH const FLOATTYPE *get_data() const;
-  INLINE_LINMATH int get_num_components() const;
+  CONSTEXPR static int get_num_components();
  INLINE_LINMATH void extract_data(float*){};

 public:
@ -113,6 +118,7 @@ PUBLISHED:
 #ifndef FLOATTYPE_IS_INT
  INLINE_LINMATH FLOATTYPE length() const;
  INLINE_LINMATH bool normalize();
+  INLINE_LINMATH FLOATNAME(LVecBase4) normalized() const;
  INLINE_LINMATH FLOATNAME(LVecBase4) project(const FLOATNAME(LVecBase4) &onto) const;
 #endif

@ -223,21 +229,18 @@ PUBLISHED:
 #endif
  };

-  INLINE_LINMATH FLOATNAME(UnalignedLVecBase4)();
+  INLINE_LINMATH FLOATNAME(UnalignedLVecBase4)() DEFAULT_CTOR;
  INLINE_LINMATH FLOATNAME(UnalignedLVecBase4)(const FLOATNAME(LVecBase4) &copy);
-  INLINE_LINMATH FLOATNAME(UnalignedLVecBase4)(const FLOATNAME(UnalignedLVecBase4) &copy);
-  INLINE_LINMATH FLOATNAME(UnalignedLVecBase4) &operator = (const FLOATNAME(LVecBase4) &copy);
-  INLINE_LINMATH FLOATNAME(UnalignedLVecBase4) &operator = (const FLOATNAME(UnalignedLVecBase4) &copy);
  INLINE_LINMATH FLOATNAME(UnalignedLVecBase4)(FLOATTYPE x, FLOATTYPE y, FLOATTYPE z, FLOATTYPE w);

  INLINE_LINMATH void set(FLOATTYPE x, FLOATTYPE y, FLOATTYPE z, FLOATTYPE w);

  INLINE_LINMATH FLOATTYPE operator [](int i) const;
  INLINE_LINMATH FLOATTYPE &operator [](int i);
-  INLINE_LINMATH static int size();
+  CONSTEXPR static int size();

  INLINE_LINMATH const FLOATTYPE *get_data() const;
-  INLINE_LINMATH int get_num_components() const;
+  CONSTEXPR static int get_num_components();

 public:
  typedef FLOATTYPE numeric_type;
--- a/panda/src/linmath/lvector2_src.I
+++ b/panda/src/linmath/lvector2_src.I
@ -12,50 +12,23 @@
 //
 ////////////////////////////////////////////////////////////////////

+
 ////////////////////////////////////////////////////////////////////
-//     Function: LVector2::Default Constructor
+//     Function: LVector2::Constructor
 //       Access: Public
-//  Description:
+//  Description: Constructs a new LVector2 from a LVecBase2
 ////////////////////////////////////////////////////////////////////
 INLINE_LINMATH FLOATNAME(LVector2)::
-FLOATNAME(LVector2)() {
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LVector2::Copy Constructor
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVector2)::
-FLOATNAME(LVector2)(const FLOATNAME(LVecBase2) &copy) : FLOATNAME(LVecBase2)(copy) {
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LVector2::Copy Assignment Operator
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVector2) &FLOATNAME(LVector2)::
-operator = (const FLOATNAME(LVecBase2) &copy) {
-  FLOATNAME(LVecBase2)::operator = (copy);
-  return *this;
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LVector2::Copy Fill Operator
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVector2) &FLOATNAME(LVector2)::
-operator = (FLOATTYPE fill_value) {
-  FLOATNAME(LVecBase2)::operator = (fill_value);
-  return *this;
+FLOATNAME(LVector2)(const FLOATNAME(LVecBase2)& copy) :
+  FLOATNAME(LVecBase2)(copy)
+{
 }

 ////////////////////////////////////////////////////////////////////
 //     Function: LVector2::Constructor
 //       Access: Public
-//  Description:
+//  Description: Constructs a new LVector2 with all components set
+//               to the fill value.
 ////////////////////////////////////////////////////////////////////
 INLINE_LINMATH FLOATNAME(LVector2)::
 FLOATNAME(LVector2)(FLOATTYPE fill_value) :
@ -175,6 +148,18 @@ operator / (FLOATTYPE scalar) const {
 }

 #ifndef FLOATTYPE_IS_INT
+////////////////////////////////////////////////////////////////////
+//     Function: LVector2::normalized
+//       Access: Published
+//  Description: Normalizes the vector and returns the normalized
+//               vector as a copy. If the vector was a zero-length
+//               vector, a zero length vector will be returned.
+////////////////////////////////////////////////////////////////////
+INLINE_LINMATH FLOATNAME(LVector2) FLOATNAME(LVector2)::
+normalized() const {
+  return FLOATNAME(LVecBase2)::normalized();
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: LVector2::project
 //       Access: Published
--- a/panda/src/linmath/lvector2_src.h
+++ b/panda/src/linmath/lvector2_src.h
@ -18,10 +18,9 @@
 ////////////////////////////////////////////////////////////////////
 class EXPCL_PANDA_LINMATH FLOATNAME(LVector2) : public FLOATNAME(LVecBase2) {
 PUBLISHED:
-  INLINE_LINMATH FLOATNAME(LVector2)();
-  INLINE_LINMATH FLOATNAME(LVector2)(const FLOATNAME(LVecBase2) &copy);
-  INLINE_LINMATH FLOATNAME(LVector2) &operator = (const FLOATNAME(LVecBase2) &copy);
-  INLINE_LINMATH FLOATNAME(LVector2) &operator = (FLOATTYPE fill_value);
+
+  INLINE_LINMATH FLOATNAME(LVector2)() DEFAULT_CTOR;
+  INLINE_LINMATH FLOATNAME(LVector2)(const FLOATNAME(LVecBase2)& copy);
  INLINE_LINMATH FLOATNAME(LVector2)(FLOATTYPE fill_value);
  INLINE_LINMATH FLOATNAME(LVector2)(FLOATTYPE x, FLOATTYPE y);

@ -44,6 +43,7 @@ PUBLISHED:
  INLINE_LINMATH FLOATNAME(LVector2) operator / (FLOATTYPE scalar) const;

 #ifndef FLOATTYPE_IS_INT
+  INLINE_LINMATH FLOATNAME(LVector2) normalized() const;
  INLINE_LINMATH FLOATNAME(LVector2) project(const FLOATNAME(LVecBase2) &onto) const;
  INLINE_LINMATH FLOATTYPE signed_angle_rad(const FLOATNAME(LVector2) &other) const;
  INLINE_LINMATH FLOATTYPE signed_angle_deg(const FLOATNAME(LVector2) &other) const;
--- a/panda/src/linmath/lvector3_src.I
+++ b/panda/src/linmath/lvector3_src.I
@ -13,15 +13,6 @@
 ////////////////////////////////////////////////////////////////////


-////////////////////////////////////////////////////////////////////
-//     Function: LVector3::Default Constructor
-//       Access: Published
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVector3)::
-FLOATNAME(LVector3)() {
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: LVector3::Copy Constructor
 //       Access: Published
@ -31,27 +22,6 @@ INLINE_LINMATH FLOATNAME(LVector3)::
 FLOATNAME(LVector3)(const FLOATNAME(LVecBase3) &copy) : FLOATNAME(LVecBase3)(copy) {
 }

-////////////////////////////////////////////////////////////////////
-//     Function: LVector3::Copy Assignment Operator
-//       Access: Published
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVector3) &FLOATNAME(LVector3)::
-operator = (const FLOATNAME(LVecBase3) &copy) {
-  FLOATNAME(LVecBase3)::operator = (copy);
-  return *this;
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LVector3::Copy Fill Operator
-//       Access: Published
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVector3) &FLOATNAME(LVector3)::
-operator = (FLOATTYPE fill_value) {
-  FLOATNAME(LVecBase3)::operator = (fill_value);
-  return *this;
-}

 ////////////////////////////////////////////////////////////////////
 //     Function: LVector3::Constructor
@ -220,6 +190,19 @@ cross(const FLOATNAME(LVecBase3) &other) const {
 }

 #ifndef FLOATTYPE_IS_INT
+
+////////////////////////////////////////////////////////////////////
+//     Function: LVector3::normalized
+//       Access: Published
+//  Description: Normalizes the vector and returns the normalized
+//               vector as a copy. If the vector was a zero-length
+//               vector, a zero length vector will be returned.
+////////////////////////////////////////////////////////////////////
+INLINE_LINMATH FLOATNAME(LVector3) FLOATNAME(LVector3)::
+normalized() const {
+  return FLOATNAME(LVecBase3)::normalized();
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: LVector3::project
 //       Access: Published
--- a/panda/src/linmath/lvector3_src.h
+++ b/panda/src/linmath/lvector3_src.h
@ -24,10 +24,8 @@
 ////////////////////////////////////////////////////////////////////
 class EXPCL_PANDA_LINMATH FLOATNAME(LVector3) : public FLOATNAME(LVecBase3) {
 PUBLISHED:
-  INLINE_LINMATH FLOATNAME(LVector3)();
+  INLINE_LINMATH FLOATNAME(LVector3)() DEFAULT_CTOR;
  INLINE_LINMATH FLOATNAME(LVector3)(const FLOATNAME(LVecBase3) &copy);
-  INLINE_LINMATH FLOATNAME(LVector3) &operator = (const FLOATNAME(LVecBase3) &copy);
-  INLINE_LINMATH FLOATNAME(LVector3) &operator = (FLOATTYPE fill_value);
  INLINE_LINMATH FLOATNAME(LVector3)(FLOATTYPE fill_value);
  INLINE_LINMATH FLOATNAME(LVector3)(FLOATTYPE x, FLOATTYPE y, FLOATTYPE z);
  INLINE_LINMATH FLOATNAME(LVector3)(const FLOATNAME(LVecBase2) &copy, FLOATTYPE z);
@ -55,6 +53,7 @@ PUBLISHED:
  INLINE_LINMATH FLOATNAME(LVector3) cross(const FLOATNAME(LVecBase3) &other) const;

 #ifndef FLOATTYPE_IS_INT
+  INLINE_LINMATH FLOATNAME(LVector3) normalized() const;
  INLINE_LINMATH FLOATNAME(LVector3) project(const FLOATNAME(LVecBase3) &onto) const;
  INLINE_LINMATH FLOATTYPE angle_rad(const FLOATNAME(LVector3) &other) const;
  INLINE_LINMATH FLOATTYPE angle_deg(const FLOATNAME(LVector3) &other) const;
--- a/panda/src/linmath/lvector4_src.I
+++ b/panda/src/linmath/lvector4_src.I
@ -13,15 +13,6 @@
 ////////////////////////////////////////////////////////////////////


-////////////////////////////////////////////////////////////////////
-//     Function: LVector4::Default Constructor
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVector4)::
-FLOATNAME(LVector4)() {
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: LVector4::Copy Constructor
 //       Access: Public
@ -31,28 +22,6 @@ INLINE_LINMATH FLOATNAME(LVector4)::
 FLOATNAME(LVector4)(const FLOATNAME(LVecBase4) &copy) : FLOATNAME(LVecBase4)(copy) {
 }

-////////////////////////////////////////////////////////////////////
-//     Function: LVector4::Copy Assignment Operator
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVector4) &FLOATNAME(LVector4)::
-operator = (const FLOATNAME(LVecBase4) &copy) {
-  FLOATNAME(LVecBase4)::operator = (copy);
-  return *this;
-}
-
-////////////////////////////////////////////////////////////////////
-//     Function: LVector4::Copy Fill Operator
-//       Access: Public
-//  Description:
-////////////////////////////////////////////////////////////////////
-INLINE_LINMATH FLOATNAME(LVector4) &FLOATNAME(LVector4)::
-operator = (FLOATTYPE fill_value) {
-  FLOATNAME(LVecBase4)::operator = (fill_value);
-  return *this;
-}
-
 ////////////////////////////////////////////////////////////////////
 //     Function: LVector4::Constructor
 //       Access: Public
@ -207,6 +176,19 @@ operator / (FLOATTYPE scalar) const {
 }

 #ifndef FLOATTYPE_IS_INT
+
+////////////////////////////////////////////////////////////////////
+//     Function: LVector4::normalized
+//       Access: Published
+//  Description: Normalizes the vector and returns the normalized
+//               vector as a copy. If the vector was a zero-length
+//               vector, a zero length vector will be returned.
+////////////////////////////////////////////////////////////////////
+INLINE_LINMATH FLOATNAME(LVector4) FLOATNAME(LVector4)::
+normalized() const {
+  return FLOATNAME(LVecBase4)::normalized();
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: LVector4::project
 //       Access: Published
--- a/panda/src/linmath/lvector4_src.h
+++ b/panda/src/linmath/lvector4_src.h
@ -18,10 +18,8 @@
 ////////////////////////////////////////////////////////////////////
 class EXPCL_PANDA_LINMATH FLOATNAME(LVector4) : public FLOATNAME(LVecBase4) {
 PUBLISHED:
-  INLINE_LINMATH FLOATNAME(LVector4)();
+  INLINE_LINMATH FLOATNAME(LVector4)() DEFAULT_CTOR;
  INLINE_LINMATH FLOATNAME(LVector4)(const FLOATNAME(LVecBase4) &copy);
-  INLINE_LINMATH FLOATNAME(LVector4) &operator = (const FLOATNAME(LVecBase4) &copy);
-  INLINE_LINMATH FLOATNAME(LVector4) &operator = (FLOATTYPE fill_value);
  INLINE_LINMATH FLOATNAME(LVector4)(FLOATTYPE fill_value);
  INLINE_LINMATH FLOATNAME(LVector4)(FLOATTYPE x, FLOATTYPE y, FLOATTYPE z, FLOATTYPE w);
  INLINE_LINMATH FLOATNAME(LVector4)(const FLOATNAME(LVecBase3) &copy, FLOATTYPE w);
@ -47,6 +45,7 @@ PUBLISHED:
  INLINE_LINMATH FLOATNAME(LVector4) operator / (FLOATTYPE scalar) const;

 #ifndef FLOATTYPE_IS_INT
+  INLINE_LINMATH FLOATNAME(LVector4) normalized() const;
  INLINE_LINMATH FLOATNAME(LVector4) project(const FLOATNAME(LVecBase4) &onto) const;
 #endif