diff --git a/demos/tutorial/12_voronoi.cpp b/demos/tutorial/12_voronoi.cpp
index 7f3a39ce..768e28ae 100644
--- a/demos/tutorial/12_voronoi.cpp
+++ b/demos/tutorial/12_voronoi.cpp
@@ -187,7 +187,7 @@ public:
                     while (i-- > 0)
                         voronoi_points.Push(vec3(rand<float>(512.f), rand<float>(512.f), .0f),
                                             vec2(64.f + rand<float>(64.f), 64.f + rand<float>(64.f))
-                                            //vec2(0.f)
+                                            //vec2::zero
                                             );
                     mode = 1;
                 }
@@ -316,7 +316,7 @@ public:
                 Framebuffer *src_buf;
                 Shader *shader;
 
-                if (curres == ivec2(0))
+                if (curres == ivec2::zero)
                     shader = m_screen_shader;
                 else
                     shader = m_fbos[m_cur_fbo].m2;
@@ -352,7 +352,7 @@ public:
     #endif
 
                 int i = 0;
-                if (curres == ivec2(0))
+                if (curres == ivec2::zero)
                     m_screen_shader->SetUniform(m_screen_texture, src_buf->GetTexture(), 0);
                 else if (m_cur_fbo == VoronoiFbo)
                 {
@@ -368,12 +368,12 @@ public:
                 m_fbos[m_cur_fbo].m2->Unbind();
                 dst_buf->Unbind();
 
-                if (curres == ivec2(0))
+                if (curres == ivec2::zero)
                     break;
                 if (curres == ivec2(1))
                 {
                     if (buf == 1)
-                        curres = ivec2(0);
+                        curres = ivec2::zero;
                     else
                         break;
                 }
diff --git a/src/Makefile.am b/src/Makefile.am
index fd3e866d..2b17b630 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -76,7 +76,7 @@ liblolcore_sources = \
     base/assert.cpp base/hash.cpp base/log.cpp base/string.cpp \
     \
     math/vector.cpp math/real.cpp math/half.cpp math/trig.cpp \
-    math/geometry.cpp \
+    math/constants.cpp math/geometry.cpp \
     \
     gpu/shader.cpp gpu/indexbuffer.cpp gpu/vertexbuffer.cpp \
     gpu/framebuffer.cpp gpu/texture.cpp gpu/renderer.cpp \
diff --git a/src/camera.cpp b/src/camera.cpp
index b6d14c1d..b7eb7c3c 100644
--- a/src/camera.cpp
+++ b/src/camera.cpp
@@ -46,7 +46,7 @@ Camera::Camera()
 
     /* Create a default perspective */
     SetProjection(m_fov, m_near, m_far, m_screen_size, m_screen_ratio);
-    SetView(mat4::lookat(vec3(0.f, 50.f, 50.f), vec3(0.f), vec3(0.f, 1.f, 0.f)));
+    SetView(mat4::lookat(vec3(0.f, 50.f, 50.f), vec3::zero, vec3::axis_y));
 }
 
 Camera::~Camera()
diff --git a/src/core.h b/src/core.h
index 81543d52..91e7bc44 100644
--- a/src/core.h
+++ b/src/core.h
@@ -55,16 +55,8 @@
 
 #if LOL_FEATURE_CXX11_CONSTEXPR
 #   define LOL_CONSTEXPR constexpr
-#   define LOL_CONSTEXPR_DECLARATION(type, name, value) \
-        static type constexpr name = value;
-#   define LOL_CONSTEXPR_DEFINITION(type, name, value) \
-        /* Nothing */
 #else
 #   define LOL_CONSTEXPR /* Nothing */
-#   define LOL_CONSTEXPR_DECLARATION(type, name, value) \
-        static type const name;
-#   define LOL_CONSTEXPR_DEFINITION(type, name, value) \
-        type const name = value;
 #endif
 
 
diff --git a/src/debug/record.cpp b/src/debug/record.cpp
index 6a965f66..99a0e27f 100644
--- a/src/debug/record.cpp
+++ b/src/debug/record.cpp
@@ -53,7 +53,7 @@ DebugRecord::DebugRecord(char const *path, float fps)
     Ticker::StartRecording();
 
     data->path = strdup(path);
-    data->size = ivec2(0);
+    data->size = ivec2::zero;
     data->fps = (int)(fps + 0.5f);
 #if defined USE_PIPI
     data->sequence = nullptr;
diff --git a/src/easymesh/easymesh.cpp b/src/easymesh/easymesh.cpp
index deeddc6d..4ac61aca 100644
--- a/src/easymesh/easymesh.cpp
+++ b/src/easymesh/easymesh.cpp
@@ -146,7 +146,7 @@ void DefaultShaderData::SetupShaderDatas(mat4 const &model)
     for (int i = 0; i < lights.Count(); ++i)
         light_data << lights[i]->GetPosition() << lights[i]->GetColor();
     while (light_data.Count() < 8)
-        light_data << vec4(0.f) << vec4(0.f);
+        light_data << vec4::zero << vec4::zero;
     m_shader->SetUniform(*GetUniform("u_Lights"), light_data);
 
     m_shader->SetUniform(*GetUniform("in_ModelView"), modelview);
diff --git a/src/font.cpp b/src/font.cpp
index e5178b2e..a30c9c0b 100644
--- a/src/font.cpp
+++ b/src/font.cpp
@@ -45,7 +45,7 @@ Font::Font(char const *path)
 {
     data->m_name = String("<font> ") + path;
 
-    data->tileset = Tiler::Register(path, ivec2(0), ivec2(16));
+    data->tileset = Tiler::Register(path, ivec2::zero, ivec2(16));
     data->size = data->tileset->GetTileSize(0);
 
     m_drawgroup = DRAWGROUP_BEFORE;
diff --git a/src/gpu/framebuffer.cpp b/src/gpu/framebuffer.cpp
index e66a9d95..8ce9ad71 100644
--- a/src/gpu/framebuffer.cpp
+++ b/src/gpu/framebuffer.cpp
@@ -471,7 +471,7 @@ void Framebuffer::Bind()
      * instead, maybe by getting rid of Framebuffer::Bind() and
      * creating RenderContext::SetFramebuffer() instead. */
     m_data->m_saved_viewport = g_renderer->GetViewport();
-    g_renderer->SetViewport(ibox2(ivec2(0), m_data->m_size));
+    g_renderer->SetViewport(ibox2(ivec2::zero, m_data->m_size));
     m_data->m_bound = true;
 }
 
diff --git a/src/gpu/renderer.cpp b/src/gpu/renderer.cpp
index a1cc7ec1..da2a85e7 100644
--- a/src/gpu/renderer.cpp
+++ b/src/gpu/renderer.cpp
@@ -138,7 +138,7 @@ Renderer::Renderer(ivec2 size)
 
     /* Initialise rendering states */
     m_data->m_viewport = ibox2(0, 0, 0, 0);
-    SetViewport(ibox2(vec2(0), size));
+    SetViewport(ibox2(vec2::zero, size));
 
     m_data->m_clear_color = vec4(-1.f);
     SetClearColor(vec4(0.1f, 0.2f, 0.3f, 1.0f));
diff --git a/src/image/color/cie1931.cpp b/src/image/color/cie1931.cpp
index bc0660b3..93ed4e63 100644
--- a/src/image/color/cie1931.cpp
+++ b/src/image/color/cie1931.cpp
@@ -582,7 +582,7 @@ vec3 Color::WavelengthToCIExyY(float nm)
 
     int i = (int)nm;
     if (i < 0 || i > 830 - 360)
-        return vec3(0.0f);
+        return vec3::zero;
 
     float t = nm - i, s = 1.0 - t;
     float x = s * cie_1931_xyz[i * 3 + 0] + t * cie_1931_xyz[i * 3 + 3];
diff --git a/src/input/input.cpp b/src/input/input.cpp
index a06a4264..d492882c 100644
--- a/src/input/input.cpp
+++ b/src/input/input.cpp
@@ -47,7 +47,7 @@ void InputDeviceInternal::AddAxis(const char* name, float sensitivity)
 void InputDeviceInternal::AddCursor(const char* name)
 {
     m_cursornames.Push(name);
-    m_cursors.Push(vec2(0.0), ivec2(0));
+    m_cursors.Push(vec2::zero, ivec2::zero);
 }
 
 InputDeviceInternal* InputDeviceInternal::CreateStandardKeyboard()
diff --git a/src/light.cpp b/src/light.cpp
index fccf94f1..732f46ca 100644
--- a/src/light.cpp
+++ b/src/light.cpp
@@ -27,7 +27,7 @@ Light::Light()
     m_gamegroup = GAMEGROUP_BEFORE;
     m_drawgroup = DRAWGROUP_CAMERA;
 
-    SetPosition(vec4(0.f));
+    SetPosition(vec4::zero);
 }
 
 Light::~Light()
diff --git a/src/lol/math/vector.h b/src/lol/math/vector.h
index f09236e1..a7c68b6f 100644
--- a/src/lol/math/vector.h
+++ b/src/lol/math/vector.h
@@ -168,8 +168,8 @@ template<typename T, int N> struct XVec4
 
 template <typename T> struct BVec2
 {
-    explicit inline BVec2() {}
-    explicit inline BVec2(T X, T Y) : x(X), y(Y) {}
+    explicit inline LOL_CONSTEXPR BVec2() {}
+    explicit inline LOL_CONSTEXPR BVec2(T X, T Y) : x(X), y(Y) {}
 
     union
     {
@@ -236,21 +236,25 @@ template <> struct BVec2<real>
 
 template <typename T> struct Vec2 : BVec2<T>
 {
-    inline Vec2() {}
-    inline Vec2(T X, T Y) : BVec2<T>(X, Y) {}
+    inline LOL_CONSTEXPR Vec2() {}
+    inline LOL_CONSTEXPR Vec2(T X, T Y) : BVec2<T>(X, Y) {}
 
-    explicit inline Vec2(T X) : BVec2<T>(X, X) {}
+    explicit LOL_CONSTEXPR inline Vec2(T X) : BVec2<T>(X, X) {}
 
     template<int N>
-    inline Vec2(XVec2<T, N> const &v)
+    inline LOL_CONSTEXPR Vec2(XVec2<T, N> const &v)
       : BVec2<T>(v[0], v[1]) {}
 
     template<typename U, int N>
-    explicit inline Vec2(XVec2<U, N> const &v)
+    explicit inline LOL_CONSTEXPR Vec2(XVec2<U, N> const &v)
       : BVec2<T>(v[0], v[1]) {}
 
     LOL_MEMBER_OPS(Vec2, x)
 
+    static const Vec2<T> zero;
+    static const Vec2<T> axis_x;
+    static const Vec2<T> axis_y;
+
     template<typename U>
     friend std::ostream &operator<<(std::ostream &stream, Vec2<U> const &v);
 };
@@ -261,9 +265,9 @@ template <typename T> struct Vec2 : BVec2<T>
 
 template <typename T> struct Cmplx
 {
-    inline Cmplx() {}
-    inline Cmplx(T X) : x(X), y(0) {}
-    inline Cmplx(T X, T Y) : x(X), y(Y) {}
+    inline LOL_CONSTEXPR Cmplx() {}
+    inline LOL_CONSTEXPR Cmplx(T X) : x(X), y(0) {}
+    inline LOL_CONSTEXPR Cmplx(T X, T Y) : x(X), y(Y) {}
 
     LOL_MEMBER_OPS(Cmplx, x)
 
@@ -331,8 +335,8 @@ static inline bool operator !=(T a, Cmplx<T> const &b) { return b != a; }
 
 template <typename T> struct BVec3
 {
-    explicit inline BVec3() {}
-    explicit inline BVec3(T X, T Y, T Z) : x(X), y(Y), z(Z) {}
+    explicit inline LOL_CONSTEXPR BVec3() {}
+    explicit inline LOL_CONSTEXPR BVec3(T X, T Y, T Z) : x(X), y(Y), z(Z) {}
 
     union
     {
@@ -473,7 +477,8 @@ template <typename T> struct BVec3
 template <> struct BVec3<half>
 {
     explicit inline BVec3() {}
-    explicit inline BVec3(half X, half Y, half Z) : x(X), y(Y), z(Z) {}
+    explicit inline BVec3(half X, half Y, half Z)
+      : x(X), y(Y), z(Z) {}
 
     half x, y, z;
 };
@@ -488,19 +493,19 @@ template <> struct BVec3<real>
 
 template <typename T> struct Vec3 : BVec3<T>
 {
-    inline Vec3() {}
-    inline Vec3(T X, T Y, T Z) : BVec3<T>(X, Y, Z) {}
-    inline Vec3(Vec2<T> XY, T Z) : BVec3<T>(XY.x, XY.y, Z) {}
-    inline Vec3(T X, Vec2<T> YZ) : BVec3<T>(X, YZ.x, YZ.y) {}
+    inline LOL_CONSTEXPR Vec3() {}
+    inline LOL_CONSTEXPR Vec3(T X, T Y, T Z) : BVec3<T>(X, Y, Z) {}
+    inline LOL_CONSTEXPR Vec3(Vec2<T> XY, T Z) : BVec3<T>(XY.x, XY.y, Z) {}
+    inline LOL_CONSTEXPR Vec3(T X, Vec2<T> YZ) : BVec3<T>(X, YZ.x, YZ.y) {}
 
-    explicit inline Vec3(T X) : BVec3<T>(X, X, X) {}
+    explicit inline LOL_CONSTEXPR Vec3(T X) : BVec3<T>(X, X, X) {}
 
     template<int N>
-    inline Vec3(XVec3<T, N> const &v)
+    inline LOL_CONSTEXPR Vec3(XVec3<T, N> const &v)
       : BVec3<T>(v[0], v[1], v[2]) {}
 
     template<typename U, int N>
-    explicit inline Vec3(XVec3<U, N> const &v)
+    explicit inline LOL_CONSTEXPR Vec3(XVec3<U, N> const &v)
       : BVec3<T>(v[0], v[1], v[2]) {}
 
     static Vec3<T> toeuler_xyx(Quat<T> const &q);
@@ -519,6 +524,11 @@ template <typename T> struct Vec3 : BVec3<T>
 
     LOL_MEMBER_OPS(Vec3, x)
 
+    static const Vec3<T> zero;
+    static const Vec3<T> axis_x;
+    static const Vec3<T> axis_y;
+    static const Vec3<T> axis_z;
+
     template<typename U>
     friend std::ostream &operator<<(std::ostream &stream, Vec3<U> const &v);
 };
@@ -529,8 +539,9 @@ template <typename T> struct Vec3 : BVec3<T>
 
 template <typename T> struct BVec4
 {
-    explicit inline BVec4() {}
-    explicit inline BVec4(T X, T Y, T Z, T W) : x(X), y(Y), z(Z), w(W) {}
+    explicit inline LOL_CONSTEXPR BVec4() {}
+    explicit inline LOL_CONSTEXPR BVec4(T X, T Y, T Z, T W)
+      : x(X), y(Y), z(Z), w(W) {}
 
     union
     {
@@ -907,27 +918,40 @@ template <> struct BVec4<real>
 
 template <typename T> struct Vec4 : BVec4<T>
 {
-    inline Vec4() {}
-    inline Vec4(T X, T Y, T Z, T W) : BVec4<T>(X, Y, Z, W) {}
-    inline Vec4(Vec2<T> XY, T Z, T W) : BVec4<T>(XY.x, XY.y, Z, W) {}
-    inline Vec4(T X, Vec2<T> YZ, T W) : BVec4<T>(X, YZ.x, YZ.y, W) {}
-    inline Vec4(T X, T Y, Vec2<T> ZW) : BVec4<T>(X, Y, ZW.x, ZW.y) {}
-    inline Vec4(Vec2<T> XY, Vec2<T> ZW) : BVec4<T>(XY.x, XY.y, ZW.x, ZW.y) {}
-    inline Vec4(Vec3<T> XYZ, T W) : BVec4<T>(XYZ.x, XYZ.y, XYZ.z, W) {}
-    inline Vec4(T X, Vec3<T> YZW) : BVec4<T>(X, YZW.x, YZW.y, YZW.z) {}
-
-    explicit inline Vec4(T X) : BVec4<T>(X, X, X, X) {}
+    inline LOL_CONSTEXPR Vec4() {}
+    inline LOL_CONSTEXPR Vec4(T X, T Y, T Z, T W)
+      : BVec4<T>(X, Y, Z, W) {}
+    inline LOL_CONSTEXPR Vec4(Vec2<T> XY, T Z, T W)
+      : BVec4<T>(XY.x, XY.y, Z, W) {}
+    inline LOL_CONSTEXPR Vec4(T X, Vec2<T> YZ, T W)
+      : BVec4<T>(X, YZ.x, YZ.y, W) {}
+    inline LOL_CONSTEXPR Vec4(T X, T Y, Vec2<T> ZW)
+      : BVec4<T>(X, Y, ZW.x, ZW.y) {}
+    inline LOL_CONSTEXPR Vec4(Vec2<T> XY, Vec2<T> ZW)
+      : BVec4<T>(XY.x, XY.y, ZW.x, ZW.y) {}
+    inline LOL_CONSTEXPR Vec4(Vec3<T> XYZ, T W)
+      : BVec4<T>(XYZ.x, XYZ.y, XYZ.z, W) {}
+    inline LOL_CONSTEXPR Vec4(T X, Vec3<T> YZW)
+      : BVec4<T>(X, YZW.x, YZW.y, YZW.z) {}
+
+    explicit inline LOL_CONSTEXPR Vec4(T X) : BVec4<T>(X, X, X, X) {}
 
     template<int N>
-    inline Vec4(XVec4<T, N> const &v)
+    inline LOL_CONSTEXPR Vec4(XVec4<T, N> const &v)
       : BVec4<T>(v[0], v[1], v[2], v[3]) {}
 
     template<typename U, int N>
-    explicit inline Vec4(XVec4<U, N> const &v)
+    explicit inline LOL_CONSTEXPR Vec4(XVec4<U, N> const &v)
       : BVec4<T>(v[0], v[1], v[2], v[3]) {}
 
     LOL_MEMBER_OPS(Vec4, x)
 
+    static const Vec4<T> zero;
+    static const Vec4<T> axis_x;
+    static const Vec4<T> axis_y;
+    static const Vec4<T> axis_z;
+    static const Vec4<T> axis_w;
+
     template<typename U>
     friend std::ostream &operator<<(std::ostream &stream, Vec4<U> const &v);
 };
@@ -938,9 +962,9 @@ template <typename T> struct Vec4 : BVec4<T>
 
 template <typename T> struct Quat
 {
-    inline Quat() {}
-    inline Quat(T W) : w(W),  x(0), y(0), z(0) {}
-    inline Quat(T W, T X, T Y, T Z) : w(W), x(X), y(Y), z(Z) {}
+    inline LOL_CONSTEXPR Quat() {}
+    inline LOL_CONSTEXPR Quat(T W) : w(W),  x(0), y(0), z(0) {}
+    inline LOL_CONSTEXPR Quat(T W, T X, T Y, T Z) : w(W), x(X), y(Y), z(Z) {}
 
     Quat(Mat3<T> const &m);
     Quat(Mat4<T> const &m);
diff --git a/src/lolcore.vcxproj b/src/lolcore.vcxproj
index 7e3e1443..5f78bc01 100644
--- a/src/lolcore.vcxproj
+++ b/src/lolcore.vcxproj
@@ -149,6 +149,7 @@
     <ClCompile Include="layer.cpp" />
     <ClCompile Include="light.cpp" />
     <ClCompile Include="map.cpp" />
+    <ClCompile Include="math\constants.cpp" />
     <ClCompile Include="math\geometry.cpp" />
     <ClCompile Include="math\half.cpp" />
     <ClCompile Include="math\real.cpp" />
@@ -314,4 +315,4 @@
   <ImportGroup Label="ExtensionTargets">
     <Import Project="$(SolutionDir)\Lol.Fx.targets" />
   </ImportGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/map.cpp b/src/map.cpp
index 370df916..2357b834 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -131,7 +131,7 @@ LevelMap::LevelMap(char const *path)
         {
             /* This is a tileset image file. Associate it with firstgid. */
             data->tilesets[data->ntilers] = Tiler::Register(str, ivec2(32),
-                                                            ivec2(0));
+                                                            ivec2::zero);
             data->ntilers++;
             //Log::Debug("new tiler %s\n", str);
         }
diff --git a/src/math/constants.cpp b/src/math/constants.cpp
new file mode 100644
index 00000000..cc146b58
--- /dev/null
+++ b/src/math/constants.cpp
@@ -0,0 +1,63 @@
+//
+// Lol Engine
+//
+// Copyright: (c) 2010-2013 Sam Hocevar <sam@hocevar.net>
+//   This program is free software; you can redistribute it and/or
+//   modify it under the terms of the Do What The Fuck You Want To
+//   Public License, Version 2, as published by Sam Hocevar. See
+//   http://www.wtfpl.net/ for more details.
+//
+
+#if defined HAVE_CONFIG_H
+#   include "config.h"
+#endif
+
+#include "core.h"
+
+namespace lol {
+
+#define LOL_VEC_2_CONST(type, name, a, b) \
+    template<> \
+    Vec2<type> const Vec2<type>::name = Vec2<type>((type)a, (type)b);
+
+#define LOL_VEC_3_CONST(type, name, a, b, c) \
+    template<> \
+    Vec3<type> const Vec3<type>::name = Vec3<type>((type)a, (type)b, (type)c);
+
+#define LOL_VEC_4_CONST(type, name, a, b, c, d) \
+    template<> \
+    Vec4<type> const Vec4<type>::name = Vec4<type>((type)a, (type)b, (type)c, (type)d);
+
+#define LOL_ALL_VECTOR_CONST_INNER(type) \
+    LOL_VEC_2_CONST(type, zero, 0, 0) \
+    LOL_VEC_2_CONST(type, axis_x, 1, 0) \
+    LOL_VEC_2_CONST(type, axis_y, 0, 1) \
+    \
+    LOL_VEC_3_CONST(type, zero, 0, 0, 0) \
+    LOL_VEC_3_CONST(type, axis_x, 1, 0, 0) \
+    LOL_VEC_3_CONST(type, axis_y, 0, 1, 0) \
+    LOL_VEC_3_CONST(type, axis_z, 0, 0, 1) \
+    \
+    LOL_VEC_4_CONST(type, zero, 0, 0, 0, 0) \
+    LOL_VEC_4_CONST(type, axis_x, 1, 0, 0, 0) \
+    LOL_VEC_4_CONST(type, axis_y, 0, 1, 0, 0) \
+    LOL_VEC_4_CONST(type, axis_z, 0, 0, 1, 0) \
+    LOL_VEC_4_CONST(type, axis_w, 0, 0, 0, 1)
+
+LOL_ALL_VECTOR_CONST_INNER(half)
+LOL_ALL_VECTOR_CONST_INNER(float)
+LOL_ALL_VECTOR_CONST_INNER(double)
+LOL_ALL_VECTOR_CONST_INNER(ldouble)
+LOL_ALL_VECTOR_CONST_INNER(real)
+
+LOL_ALL_VECTOR_CONST_INNER(int8_t)
+LOL_ALL_VECTOR_CONST_INNER(uint8_t)
+LOL_ALL_VECTOR_CONST_INNER(int16_t)
+LOL_ALL_VECTOR_CONST_INNER(uint16_t)
+LOL_ALL_VECTOR_CONST_INNER(int32_t)
+LOL_ALL_VECTOR_CONST_INNER(uint32_t)
+LOL_ALL_VECTOR_CONST_INNER(int64_t)
+LOL_ALL_VECTOR_CONST_INNER(uint64_t)
+
+}; /* namespace lol */
+
diff --git a/src/math/vector.cpp b/src/math/vector.cpp
index 3981ee8f..4634c8e1 100644
--- a/src/math/vector.cpp
+++ b/src/math/vector.cpp
@@ -535,7 +535,7 @@ static inline vec3 quat_toeuler_generic(quat const &q, int i, int j, int k)
     float n = norm(q);
 
     if (!n)
-        return vec3(0.f);
+        return vec3::zero;
 
     /* (2 + i - j) % 3 means x-y-z direct order; otherwise indirect */
     float const sign = ((2 + i - j) % 3) ? 1.f : -1.f;
diff --git a/src/platform/sdl/sdlinput.cpp b/src/platform/sdl/sdlinput.cpp
index 63bdc881..c2009fc3 100644
--- a/src/platform/sdl/sdlinput.cpp
+++ b/src/platform/sdl/sdlinput.cpp
@@ -48,7 +48,7 @@ private:
 
 #if USE_SDL
     SdlInputData(int app_w, int app_h, int screen_w, int screen_h) :
-        m_prevmouse(ivec2(0)),
+        m_prevmouse(ivec2::zero),
         m_app_w((float)app_w),
         m_app_h((float)app_h),
         m_screen_w((float)screen_w),
diff --git a/src/worldentity.cpp b/src/worldentity.cpp
index b6401f95..3b2a6b64 100644
--- a/src/worldentity.cpp
+++ b/src/worldentity.cpp
@@ -25,11 +25,11 @@ namespace lol
 
 WorldEntity::WorldEntity()
 {
-    m_position = vec3(0);
+    m_position = vec3::zero;
     m_rotation = quat(1);
-    m_velocity = vec3(0);
-    m_rotation_velocity = vec3(0);
-    m_bbox[0] = m_bbox[1] = vec3(0);
+    m_velocity = vec3::zero;
+    m_rotation_velocity = vec3::zero;
+    m_bbox[0] = m_bbox[1] = vec3::zero;
 }
 
 WorldEntity::~WorldEntity()
diff --git a/test/btphystest.cpp b/test/btphystest.cpp
index fa5dd227..c6325006 100644
--- a/test/btphystest.cpp
+++ b/test/btphystest.cpp
@@ -66,7 +66,7 @@ void BtPhysTest::InitApp()
 
 #if CAT_MODE
     /* cat datas setup */
-    m_cat_texture = Tiler::Register("data/CatsSheet.png", ivec2(0), ivec2(0,1));
+    m_cat_texture = Tiler::Register("data/CatsSheet.png", ivec2::zero, ivec2(0,1));
     m_fov_dp = .0f;
     m_loc_dp = .0f;
 #endif //CAT_MODE
diff --git a/test/meshviewer.cpp b/test/meshviewer.cpp
index 985f1da0..8dacaf75 100644
--- a/test/meshviewer.cpp
+++ b/test/meshviewer.cpp
@@ -136,12 +136,12 @@ public:
         m_zoom_mesh = 0.f;
         m_zoom_speed = 0.f;
         m_rot = vec2(45.f);
-        m_rot_mesh = vec2(0.f);
-        m_rot_speed = vec2(0.f);
-        m_pos = vec2(0.f);
-        m_pos_mesh = vec2(0.f);
-        m_pos_speed = vec2(0.f);
-        m_screen_offset = vec2(0.f);
+        m_rot_mesh = vec2::zero;
+        m_rot_speed = vec2::zero;
+        m_pos = vec2::zero;
+        m_pos_mesh = vec2::zero;
+        m_pos_speed = vec2::zero;
+        m_screen_offset = vec2::zero;
 
         m_camera = new Camera();
         m_camera->SetView(vec3(0.f, 0.f, 10.f), vec3(0.f, 0.f, 0.f), vec3(0.f, 1.f, 0.f));
@@ -206,7 +206,7 @@ public:
         //Camera update
         bool is_pos = false;
         bool is_fov = false;
-        vec2 tmp = vec2(0.f);
+        vec2 tmp = vec2::zero;
 
 #if !__native_client__
         is_pos = m_controller->GetKey(KEY_CAM_POS).IsDown();
@@ -252,7 +252,7 @@ public:
 #if !__native_client__
         if (m_controller->GetKey(KEY_CAM_RESET).IsDown())
         {
-            pos_mesh = vec2(0.f);
+            pos_mesh = vec2::zero;
             zoom_mesh = 0.f;
         }
 #endif //!__native_client__
@@ -426,7 +426,7 @@ public:
         {
             m_texture_shader = Shader::Create(LOLFX_RESOURCE_NAME(shinymvtexture));
             m_texture_uni = m_texture_shader->GetUniformLocation("u_Texture");
-            m_default_texture = Tiler::Register("data/test-texture.png", ivec2(0), ivec2(0,1));
+            m_default_texture = Tiler::Register("data/test-texture.png", ivec2::zero, ivec2(0,1));
         }
         else if (m_texture && m_default_texture)
             m_texture_shader->SetUniform(m_texture_uni, m_default_texture->GetTexture(), 0);
diff --git a/test/unit/camera.cpp b/test/unit/camera.cpp
index aba8ab9c..858a1e15 100644
--- a/test/unit/camera.cpp
+++ b/test/unit/camera.cpp
@@ -38,8 +38,8 @@ LOLUNIT_FIXTURE(CameraTest)
     void SetUp()
     {
         eye = vec3(0.f, 0.f, 50.f);
-        target = vec3(0.f);
-        up = vec3(0.f, 1.f, 0.f);
+        target = vec3::zero;
+        up = vec3::axis_y;
         m_lookat = mat4::lookat(eye, target, up);
         q_lookat = quat(m_lookat);
         v_lookat = vec3::toeuler_zyx(q_lookat);