diff --git a/.gitignore b/.gitignore
index 1b5c31b..e44ccc3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,3 +17,4 @@ ui_*.h
 /debian/files
 /debian/*.substvars
 /debian/paysages3d
+/*.trace
diff --git a/src/controlling/controlling.pro b/src/controlling/controlling.pro
index 266dba0..67c1b6a 100644
--- a/src/controlling/controlling.pro
+++ b/src/controlling/controlling.pro
@@ -1,7 +1,6 @@
 TEMPLATE = app
 CONFIG += console
 CONFIG -= app_bundle
-CONFIG -= qt
 
 TARGET = paysages-cli
 
@@ -15,3 +14,9 @@ win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../rendering/release/
 else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../rendering/debug/ -lpaysages_rendering
 else:unix: LIBS += -L$$OUT_PWD/../rendering/ -lpaysages_rendering
 DEPENDPATH += $$PWD/../rendering
+
+win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../system/release/ -lpaysages_system
+else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../system/debug/ -lpaysages_system
+else:unix: LIBS += -L$$OUT_PWD/../system/ -lpaysages_system
+INCLUDEPATH += $$PWD/../system
+DEPENDPATH += $$PWD/../system
diff --git a/src/editing/editing.pro b/src/editing/editing.pro
index 7af6734..b2eaef1 100644
--- a/src/editing/editing.pro
+++ b/src/editing/editing.pro
@@ -6,7 +6,7 @@ QT += core gui opengl
 TARGET = paysages-gui
 
 unix:LIBS += -lGLU
-win32:LIBS += ../../libpaysages.a -lDevIL -lILU -lILUT -lglib-2.0 -lgthread-2.0
+win32:LIBS += ../../libpaysages.a -lglib-2.0 -lgthread-2.0
 
 CONFIG(release, debug|release): DEFINES += NDEBUG
 
@@ -154,3 +154,9 @@ RESOURCES += \
     ../../data/ui_pictures.qrc
 
 TRANSLATIONS = ../../data/i18n/paysages_fr.ts
+
+win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../system/release/ -lpaysages_system
+else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../system/debug/ -lpaysages_system
+else:unix: LIBS += -L$$OUT_PWD/../system/ -lpaysages_system
+INCLUDEPATH += $$PWD/../system
+DEPENDPATH += $$PWD/../system
diff --git a/src/paysages.pro b/src/paysages.pro
index 24f99f1..c83080b 100644
--- a/src/paysages.pro
+++ b/src/paysages.pro
@@ -1,3 +1,16 @@
 TEMPLATE = subdirs
+CONFIG += ordered
 
-SUBDIRS = rendering exploring editing controlling testing
+SUBDIRS = \
+    system \
+    rendering \
+    exploring \
+    editing \
+    controlling \
+    testing
+
+rendering.depends = system
+exploring.depends = rendering
+editing.depends = exploring rendering
+controlling.depends = rendering
+testing.depends = rendering
diff --git a/src/rendering/render.c b/src/rendering/render.c
index 54113b1..5dcdaf6 100644
--- a/src/rendering/render.c
+++ b/src/rendering/render.c
@@ -7,6 +7,7 @@
 #include "renderer.h"
 #include "camera.h"
 #include "system.h"
+#include "PictureFile.h"
 
 typedef struct
 {
diff --git a/src/rendering/rendering.pro b/src/rendering/rendering.pro
index 3448657..437cd97 100644
--- a/src/rendering/rendering.pro
+++ b/src/rendering/rendering.pro
@@ -9,7 +9,7 @@ INCLUDEPATH += $$PWD/..
 
 unix {
     CONFIG += link_pkgconfig
-    PKGCONFIG += glib-2.0 gthread-2.0 IL ILU
+    PKGCONFIG += glib-2.0 gthread-2.0
 }
 DEFINES += HAVE_GLIB=1
 CONFIG(release, debug|release): DEFINES += NDEBUG
@@ -117,3 +117,8 @@ HEADERS += \
     water/public.h \
     water/private.h
 
+win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../system/release/ -lpaysages_system
+else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../system/debug/ -lpaysages_system
+else:unix: LIBS += -L$$OUT_PWD/../system/ -lpaysages_system
+INCLUDEPATH += $$PWD/../system
+DEPENDPATH += $$PWD/../system
diff --git a/src/rendering/system.c b/src/rendering/system.c
index 1f87c1e..f13b341 100644
--- a/src/rendering/system.c
+++ b/src/rendering/system.c
@@ -4,9 +4,6 @@
 #include <stdlib.h>
 #include <sys/stat.h>
 
-#include "IL/il.h"
-#include "IL/ilu.h"
-
 #ifndef NDEBUG
 #define DEBUG_ONETHREAD 1
 #endif
@@ -54,10 +51,6 @@ void systemInit()
     g_thread_init(NULL);
 #endif
     _core_count = _getCoreCount();
-    ilInit();
-    iluInit();
-    ilOriginFunc(IL_ORIGIN_LOWER_LEFT);
-    ilEnable(IL_ORIGIN_SET);
 }
 
 int systemGetCoreCount()
@@ -65,89 +58,6 @@ int systemGetCoreCount()
     return _core_count;
 }
 
-int systemSavePictureFile(const char* filepath, PictureCallbackSavePixel callback_pixel, void* data, int width, int height)
-{
-    ILuint image_id;
-    Color result;
-    ILuint x, y;
-    ILuint rgba;
-    ILuint pixels[width * height];
-    ILenum error;
-    int error_count;
-
-    ilGenImages(1, &image_id);
-    ilBindImage(image_id);
-
-    for (y = 0; y < height; y++)
-    {
-        for (x = 0; x < width; x++)
-        {
-            result = callback_pixel(data, x, y);
-            colorNormalize(&result);
-            rgba = colorTo32BitRGBA(&result);
-            pixels[y * width + x] = rgba;
-        }
-    }
-
-    ilTexImage((ILuint)width, (ILuint)height, 1, 4, IL_RGBA, IL_UNSIGNED_BYTE, pixels);
-    remove(filepath);
-    ilSaveImage(filepath);
-
-    ilDeleteImages(1, &image_id);
-
-    error_count = 0;
-    while ((error=ilGetError()) != IL_NO_ERROR)
-    {
-        fprintf(stderr, "IL ERROR : %s\n", iluErrorString(error));
-        error_count++;
-    }
-    return !error_count;
-}
-
-int systemLoadPictureFile(const char* filepath, PictureCallbackLoadStarted callback_start, PictureCallbackLoadPixel callback_pixel, void* data)
-{
-    ILuint image_id;
-    ILenum error;
-    int error_count;
-    int width, height;
-    ILuint* pixels;
-    int x, y;
-
-    ilGenImages(1, &image_id);
-    ilBindImage(image_id);
-
-    if (ilLoadImage(filepath))
-    {
-        width = ilGetInteger(IL_IMAGE_WIDTH);
-        height = ilGetInteger(IL_IMAGE_HEIGHT);
-        if (callback_start)
-        {
-            callback_start(data, width, height);
-        }
-
-        pixels = malloc(sizeof(ILuint) * width * height);
-        ilCopyPixels(0, 0, 0, width, height, 1, IL_RGBA, IL_UNSIGNED_BYTE, pixels);
-
-        for (y = 0; y < height; y++)
-        {
-            for (x = 0; x < width; x++)
-            {
-                callback_pixel(data, x, y, colorFrom32BitRGBA(pixels[y * width + x]));
-            }
-        }
-
-        free(pixels);
-    }
-
-    error_count = 0;
-    while ((error=ilGetError()) != IL_NO_ERROR)
-    {
-        fprintf(stderr, "IL ERROR : %s\n", iluErrorString(error));
-        error_count++;
-    }
-    return !error_count;
-}
-
 int systemGetFileSize(const char* path)
 {
     struct stat st;
diff --git a/src/rendering/system.h b/src/rendering/system.h
index 012997d..5bda037 100644
--- a/src/rendering/system.h
+++ b/src/rendering/system.h
@@ -3,7 +3,6 @@
 
 /* Library dependent features */
 
-#include "tools/color.h"
 #include <stdlib.h>
 
 #ifdef __cplusplus
@@ -11,16 +10,10 @@ extern "C" {
 #endif
 
 typedef void* (*ThreadFunction)(void* data);
-typedef Color (*PictureCallbackSavePixel)(void* data, int x, int y);
-typedef void (*PictureCallbackLoadStarted)(void* data, int width, int height);
-typedef void (*PictureCallbackLoadPixel)(void* data, int x, int y, Color col);
 
 void systemInit();
 int systemGetCoreCount();
 
-int systemSavePictureFile(const char* filepath, PictureCallbackSavePixel callback_pixel, void* data, int width, int height);
-int systemLoadPictureFile(const char* filepath, PictureCallbackLoadStarted callback_start, PictureCallbackLoadPixel callback_pixel, void* data);
-
 int systemGetFileSize(const char* path);
 
 #ifdef HAVE_GLIB
diff --git a/src/rendering/tools/color.h b/src/rendering/tools/color.h
index fb10505..7541601 100644
--- a/src/rendering/tools/color.h
+++ b/src/rendering/tools/color.h
@@ -8,6 +8,7 @@
 extern "C" {
 #endif
 
+#define TYPEDEF_COLOR
 typedef struct
 {
     double r;
diff --git a/src/rendering/tools/texture.c b/src/rendering/tools/texture.c
index d36ea80..d6dee11 100644
--- a/src/rendering/tools/texture.c
+++ b/src/rendering/tools/texture.c
@@ -3,6 +3,7 @@
 #include <assert.h>
 #include <math.h>
 #include "../system.h"
+#include "PictureFile.h"
 
 struct Texture2D
 {
@@ -196,19 +197,6 @@ void texture2DSaveToFile(Texture2D* tex, const char* filepath)
     systemSavePictureFile(filepath, (PictureCallbackSavePixel)texture2DGetPixel, tex, tex->xsize, tex->ysize);
 }
 
-static void _callbackTex2dLoad(Texture2D* tex, int x, int y, Color col)
-{
-    if (x >= 0 && x < tex->xsize && y >= 0 && y < tex->ysize)
-    {
-        tex->data[y * tex->xsize + x] = col;
-    }
-}
-
-void texture2DLoadFromFile(Texture2D* tex, const char* filepath)
-{
-    systemLoadPictureFile(filepath, NULL, (PictureCallbackLoadPixel)_callbackTex2dLoad, tex);
-}
-
 
 
 
@@ -403,22 +391,6 @@ void texture3DSaveToFile(Texture3D* tex, const char* filepath)
     systemSavePictureFile(filepath, (PictureCallbackSavePixel)_callbackTex3dSave, tex, tex->xsize, tex->ysize * tex->zsize);
 }
 
-static void _callbackTex3dLoad(Texture3D* tex, int x, int y, Color col)
-{
-    int z = y / tex->ysize;
-    y = y % tex->ysize;
-
-    if (x >= 0 && x < tex->xsize && y >= 0 && y < tex->ysize && z >= 0 && z < tex->zsize)
-    {
-        tex->data[z * tex->xsize * tex->ysize + y * tex->xsize + x] = col;
-    }
-}
-
-void texture3DLoadFromFile(Texture3D* tex, const char* filepath)
-{
-    systemLoadPictureFile(filepath, NULL, (PictureCallbackLoadPixel)_callbackTex3dLoad, tex);
-}
-
 
 
 Texture4D* texture4DCreate(int xsize, int ysize, int zsize, int wsize)
@@ -649,22 +621,3 @@ void texture4DSaveToFile(Texture4D* tex, const char* filepath)
 {
     systemSavePictureFile(filepath, (PictureCallbackSavePixel)_callbackTex4dSave, tex, tex->xsize * tex->wsize, tex->ysize * tex->zsize);
 }
-
-static void _callbackTex4dLoad(Texture4D* tex, int x, int y, Color col)
-{
-    int w = x / tex->xsize;
-    x = x % tex->xsize;
-
-    int z = y / tex->ysize;
-    y = y % tex->ysize;
-
-    if (x >= 0 && x < tex->xsize && y >= 0 && y < tex->ysize && z >= 0 && z < tex->zsize && w >= 0 && w < tex->wsize)
-    {
-        tex->data[w * tex->xsize * tex->ysize * tex->zsize + z * tex->xsize * tex->ysize + y * tex->xsize + x] = col;
-    }
-}
-
-void texture4DLoadFromFile(Texture4D* tex, const char* filepath)
-{
-    systemLoadPictureFile(filepath, NULL, (PictureCallbackLoadPixel)_callbackTex4dLoad, tex);
-}
diff --git a/src/rendering/tools/texture.h b/src/rendering/tools/texture.h
index ced5908..a9159ff 100644
--- a/src/rendering/tools/texture.h
+++ b/src/rendering/tools/texture.h
@@ -29,7 +29,6 @@ void texture2DAdd(Texture2D* source, Texture2D* destination);
 void texture2DSave(PackStream* stream, Texture2D* tex);
 void texture2DLoad(PackStream* stream, Texture2D* tex);
 void texture2DSaveToFile(Texture2D* tex, const char* filepath);
-void texture2DLoadFromFile(Texture2D* tex, const char* filepath);
 
 Texture3D* texture3DCreate(int xsize, int ysize, int zsize);
 void texture3DDelete(Texture3D* tex);
@@ -44,7 +43,6 @@ void texture3DAdd(Texture3D* source, Texture3D* destination);
 void texture3DSave(PackStream* stream, Texture3D* tex);
 void texture3DLoad(PackStream* stream, Texture3D* tex);
 void texture3DSaveToFile(Texture3D* tex, const char* filepath);
-void texture3DLoadFromFile(Texture3D* tex, const char* filepath);
 
 Texture4D* texture4DCreate(int xsize, int ysize, int zsize, int wsize);
 void texture4DDelete(Texture4D* tex);
@@ -59,7 +57,6 @@ void texture4DAdd(Texture4D* source, Texture4D* destination);
 void texture4DSave(PackStream* stream, Texture4D* tex);
 void texture4DLoad(PackStream* stream, Texture4D* tex);
 void texture4DSaveToFile(Texture4D* tex, const char* filepath);
-void texture4DLoadFromFile(Texture4D* tex, const char* filepath);
 
 #ifdef __cplusplus
 }
diff --git a/src/system/PictureFile.cpp b/src/system/PictureFile.cpp
new file mode 100644
index 0000000..afcdb07
--- /dev/null
+++ b/src/system/PictureFile.cpp
@@ -0,0 +1,25 @@
+#include "PictureFile.h"
+
+#include <QImage>
+#include <QColor>
+
+PictureFile::PictureFile()
+{
+}
+
+int systemSavePictureFile(const char* filepath, PictureCallbackSavePixel callback_pixel, void* data, int width, int height)
+{
+    QImage result(width, height, QImage::Format_ARGB32);
+
+    for (int y = 0; y < height; y++)
+    {
+        for (int x = 0; x < width; x++)
+        {
+            Color pixel = callback_pixel(data, x, y);
+            QColor pixelconv = QColor::fromRgbF(pixel.r, pixel.g, pixel.b, pixel.a);
+            result.setPixel(x, height - 1 - y, pixelconv.rgba());
+        }
+    }
+
+    return result.save(filepath);
+}
diff --git a/src/system/PictureFile.h b/src/system/PictureFile.h
new file mode 100644
index 0000000..727a0a4
--- /dev/null
+++ b/src/system/PictureFile.h
@@ -0,0 +1,43 @@
+#ifndef PICTUREFILE_H
+#define PICTUREFILE_H
+
+#ifdef __cplusplus
+#include "system_global.h"
+
+namespace paysages
+{
+namespace system
+{
+
+class SYSTEMSHARED_EXPORT PictureFile
+{
+public:
+    PictureFile();
+};
+
+}
+}
+
+extern "C" {
+#endif
+
+// Transitional C-API
+
+#ifndef TYPEDEF_COLOR
+typedef struct
+{
+    double r;
+    double g;
+    double b;
+    double a;
+} Color;
+#endif
+
+typedef Color (*PictureCallbackSavePixel)(void* data, int x, int y);
+int systemSavePictureFile(const char* filepath, PictureCallbackSavePixel callback_pixel, void* data, int width, int height);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // PICTUREFILE_H
diff --git a/src/system/system.pro b/src/system/system.pro
new file mode 100644
index 0000000..6fb74de
--- /dev/null
+++ b/src/system/system.pro
@@ -0,0 +1,28 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2013-10-20T11:38:08
+#
+#-------------------------------------------------
+
+#QT       -= gui
+
+TARGET = paysages_system
+TEMPLATE = lib
+
+DEFINES += SYSTEM_LIBRARY
+
+SOURCES += \
+    PictureFile.cpp
+
+HEADERS +=\
+        system_global.h \
+    PictureFile.h
+
+unix:!symbian {
+    maemo5 {
+        target.path = /opt/usr/lib
+    } else {
+        target.path = /usr/lib
+    }
+    INSTALLS += target
+}
diff --git a/src/system/system_global.h b/src/system/system_global.h
new file mode 100644
index 0000000..5b4e693
--- /dev/null
+++ b/src/system/system_global.h
@@ -0,0 +1,21 @@
+#ifndef SYSTEM_GLOBAL_H
+#define SYSTEM_GLOBAL_H
+
+#include <QtCore/qglobal.h>
+
+#if defined(SYSTEM_LIBRARY)
+#  define SYSTEMSHARED_EXPORT Q_DECL_EXPORT
+#else
+#  define SYSTEMSHARED_EXPORT Q_DECL_IMPORT
+#endif
+
+#ifdef __cplusplus
+namespace paysages
+{
+    namespace system {}
+}
+
+using namespace paysages::system;
+#endif
+
+#endif // SYSTEM_GLOBAL_H
diff --git a/src/testing/testing.pro b/src/testing/testing.pro
index abfcd72..d7820a2 100644
--- a/src/testing/testing.pro
+++ b/src/testing/testing.pro
@@ -1,7 +1,6 @@
 TEMPLATE = app
 CONFIG += console
 CONFIG -= app_bundle
-CONFIG -= qt
 
 TARGET = paysages-tests
 
@@ -32,3 +31,9 @@ SOURCES += main.c \
 
 HEADERS += \
     common.h
+
+win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../system/release/ -lpaysages_system
+else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../system/debug/ -lpaysages_system
+else:unix: LIBS += -L$$OUT_PWD/../system/ -lpaysages_system
+INCLUDEPATH += $$PWD/../system
+DEPENDPATH += $$PWD/../system