diff --git a/src/GUI/gui_funcs.cxx b/src/GUI/gui_funcs.cxx
index 5a05d8872..7989cd0f7 100644
--- a/src/GUI/gui_funcs.cxx
+++ b/src/GUI/gui_funcs.cxx
@@ -102,7 +102,6 @@ extern void fgLatLonFormatToggle( puObject *);
 
 #if defined( TR_HIRES_SNAP)
 #include <simgear/screen/tr.h>
-extern void trRenderFrame( void );
 extern void fgUpdateHUD( GLfloat x_start, GLfloat y_start,
                          GLfloat x_end, GLfloat y_end );
 #endif
@@ -376,8 +375,8 @@ void guiTogglePanel(puObject *cb)
   else
     fgSetBool("/sim/panel/visibility", true);
 
-  fgReshape(fgGetInt("/sim/startup/xsize"),
-	    fgGetInt("/sim/startup/ysize"));
+  globals->get_renderer()->resize(fgGetInt("/sim/startup/xsize"),
+                                  fgGetInt("/sim/startup/ysize"));
 }
 
 void goodBye(puObject *)
@@ -534,15 +533,16 @@ void fgHiResDump()
         puHideCursor();
     }
 
-    fgInitVisuals();
-    fgReshape( fgGetInt("/sim/startup/xsize"),
-               fgGetInt("/sim/startup/ysize") );
+    FGRenderer *renderer = globals->get_renderer();
+    renderer->init();
+    renderer->resize( fgGetInt("/sim/startup/xsize"),
+                      fgGetInt("/sim/startup/ysize") );
 
     // we need two render frames here to clear the menu and cursor
     // ... not sure why but doing an extra fgRenderFrame() shouldn't
     // hurt anything
-    fgRenderFrame();
-    fgRenderFrame();
+    renderer->update();
+    renderer->update();
 
     // Make sure we have SSG projection primed for current view
     glMatrixMode(GL_MODELVIEW);
@@ -633,7 +633,7 @@ void fgHiResDump()
         trBeginTile(tr);
         int curColumn = trGet(tr, TR_CURRENT_COLUMN);
         int curRow =  trGet(tr, TR_CURRENT_ROW);
-        trRenderFrame();
+        globals->get_renderer()->screendump();
         if ( do_hud )
             fgUpdateHUD( curColumn*hud_col_step,      curRow*hud_row_step,
                          (curColumn+1)*hud_col_step, (curRow+1)*hud_row_step );
@@ -670,7 +670,7 @@ void fgHiResDump()
 
     }
 
-    fgReshape( width, height );
+    globals->get_renderer()->resize( width, height );
 
     trDelete(tr);
 
@@ -714,7 +714,7 @@ GLubyte *hiResScreenCapture( int multiplier )
     float fov = oldfov / multiplier;
     FGViewer *v = globals->get_current_view();
     fgSetDouble("/sim/current-view/field-of-view", fov);
-    fgInitVisuals();
+    globals->get_renderer()->init();
     int cur_width = fgGetInt("/sim/startup/xsize");
     int cur_height = fgGetInt("/sim/startup/ysize");
     if (b1) delete( b1 );
@@ -723,10 +723,10 @@ GLubyte *hiResScreenCapture( int multiplier )
     int x,y;
     for ( y = 0; y < multiplier; y++ ) {
 	for ( x = 0; x < multiplier; x++ ) {
-	    fgReshape( cur_width, cur_height );
+	    globals->get_renderer()->resize( cur_width, cur_height );
 	    // pan to tile
 	    rotateView( 0, (y*fov)-((multiplier-1)*fov/2), (x*fov)-((multiplier-1)*fov/2) );
-	    fgRenderFrame();
+	    globals->get_renderer()->update();
 	    // restore view
 	    GlBitmap b2;
 	    b1->copyBitmap( &b2, cur_width*x, cur_height*y );
@@ -794,15 +794,15 @@ void fgDumpSnapShot () {
 	puHideCursor();
     }
 
-    fgInitVisuals();
-    fgReshape( fgGetInt("/sim/startup/xsize"),
-	       fgGetInt("/sim/startup/ysize") );
+    globals->get_renderer()->init();
+    globals->get_renderer()->resize( fgGetInt("/sim/startup/xsize"),
+                                     fgGetInt("/sim/startup/ysize") );
 
     // we need two render frames here to clear the menu and cursor
     // ... not sure why but doing an extra fgRenderFrame() shouldn't
     // hurt anything
-    fgRenderFrame();
-    fgRenderFrame();
+    globals->get_renderer()->update();
+    globals->get_renderer()->update();
 
     while (count < 1000) {
         FILE *fp;
diff --git a/src/GUI/gui_local.cxx b/src/GUI/gui_local.cxx
index e881cd2a7..adb75f656 100644
--- a/src/GUI/gui_local.cxx
+++ b/src/GUI/gui_local.cxx
@@ -81,7 +81,7 @@ void reInit(puObject *cb)
 
     globals->get_tile_mgr()->update( fgGetDouble("/environment/visibility-m") );
 
-    fgReshape( xsize, ysize );
+    globals->get_renderer()->resize( xsize, ysize );
 
     // BusyCursor(1);
     
diff --git a/src/Main/Makefile.am b/src/Main/Makefile.am
index 9a3064fda..87fc984aa 100644
--- a/src/Main/Makefile.am
+++ b/src/Main/Makefile.am
@@ -37,6 +37,7 @@ noinst_LIBRARIES = libMain.a
 
 libMain_a_SOURCES = \
 	main.cxx main.hxx \
+	renderer.cxx renderer.hxx \
 	fg_commands.cxx fg_commands.hxx \
 	fg_init.cxx fg_init.hxx \
 	fg_io.cxx fg_io.hxx \
diff --git a/src/Main/globals.cxx b/src/Main/globals.cxx
index 73adb93ea..d8b2997c8 100644
--- a/src/Main/globals.cxx
+++ b/src/Main/globals.cxx
@@ -42,6 +42,7 @@ FGGlobals *globals;
 
 // Constructor
 FGGlobals::FGGlobals() :
+    renderer( new FGRenderer ),
     subsystem_mgr( new SGSubsystemMgr ),
     event_mgr( new SGEventMgr ),
     sim_time_sec( 0.0 ),
@@ -95,6 +96,7 @@ FGGlobals::~FGGlobals()
     delete props;
     delete commands;
     delete io;
+    delete renderer;
   
     // make sure only to delete the initial waypoints list if it acually
     // still exists. 
@@ -157,6 +159,12 @@ void FGGlobals::set_fg_scenery (const string &scenery) {
 }
 
 
+FGRenderer *
+FGGlobals::get_renderer () const
+{
+   return renderer;
+}
+
 SGSubsystemMgr *
 FGGlobals::get_subsystem_mgr () const
 {
diff --git a/src/Main/globals.hxx b/src/Main/globals.hxx
index 3077e750e..13215e6ee 100644
--- a/src/Main/globals.hxx
+++ b/src/Main/globals.hxx
@@ -42,6 +42,8 @@ SG_USING_STD( string );
 typedef vector<string> string_list;
 
 
+#include "renderer.hxx"
+
 // Forward declarations
 
 // This file is included, directly or indirectly, almost everywhere in
@@ -97,6 +99,7 @@ class FGGlobals
 
 private:
 
+    FGRenderer *renderer;
     SGSubsystemMgr *subsystem_mgr;
     SGEventMgr *event_mgr;
 
@@ -217,6 +220,8 @@ public:
     FGGlobals();
     virtual ~FGGlobals();
 
+    virtual FGRenderer *get_renderer () const;
+
     virtual SGSubsystemMgr *get_subsystem_mgr () const;
 
     virtual SGSubsystem *get_subsystem (const char * name);
diff --git a/src/Main/main.cxx b/src/Main/main.cxx
index 0915f2d23..8f80effbb 100644
--- a/src/Main/main.cxx
+++ b/src/Main/main.cxx
@@ -41,31 +41,23 @@
 #  include <float.h>
 #endif
 
-#include <plib/ssg.h>
 #include <plib/netSocket.h>
 
-#include <simgear/screen/extensions.hxx>
-#include <simgear/scene/material/matlib.hxx>
 #include <simgear/props/props.hxx>
-#include <simgear/scene/sky/sky.hxx>
 #include <simgear/timing/sg_time.hxx>
-#include <simgear/scene/model/animation.hxx>
-#include <simgear/ephemeris/ephemeris.hxx>
-#include <simgear/scene/model/placement.hxx>
 #include <simgear/math/sg_random.h>
-#include <simgear/scene/model/modellib.hxx>
 
-#ifdef FG_USE_CLOUDS_3D
-#  include <simgear/scene/sky/clouds3d/SkySceneLoader.hpp>
-#  include <simgear/scene/sky/clouds3d/SkyUtil.hpp>
-#endif
+// Class refferences
+#include <simgear/ephemeris/ephemeris.hxx>
+#include <simgear/scene/model/modellib.hxx>
+#include <simgear/scene/material/matlib.hxx>
+#include <simgear/scene/model/animation.hxx>
+#include <simgear/scene/sky/sky.hxx>
+#include <Time/light.hxx>
+
+
 
 #include <Include/general.hxx>
-#include <Scenery/tileentry.hxx>
-#include <Time/light.hxx>
-#include <Time/light.hxx>
-#include <Aircraft/aircraft.hxx>
-#include <Cockpit/panel.hxx>
 #include <Cockpit/cockpit.hxx>
 #include <Cockpit/radiostack.hxx>
 #include <Cockpit/hud.hxx>
@@ -91,32 +83,18 @@
 #include <MultiPlayer/multiplayrxmgr.hxx>
 #endif
 
-#include "splash.hxx"
+
+
 #include "fg_commands.hxx"
 #include "fg_io.hxx"
+#include "renderer.hxx"
+#include "splash.hxx"
 #include "main.hxx"
 
-float default_attenuation[3] = {1.0, 0.0, 0.0};
-ssgSelector *ship_sel=NULL;
-// upto 32 instances of a same object can be loaded.
-ssgTransform *ship_pos[32];
-double obj_lat[32],obj_lon[32],obj_alt[32],obj_pitch[32],obj_roll[32];
-int objc=0;
-ssgSelector *lightpoints_brightness = new ssgSelector;
-ssgTransform *lightpoints_transform = new ssgTransform;
-FGTileEntry *dummy_tile;
-sgVec3 rway_ols;
-// ADA
-// Clip plane settings...
-float scene_nearplane = 0.5f;
-float scene_farplane = 120000.0f;
+
 
 static double real_delta_time_sec = 0.0;
-static double delta_time_sec = 0.0;
-
-glPointParameterfProc glPointParameterfPtr = 0;
-glPointParameterfvProc glPointParameterfvPtr = 0;
-bool glPointParameterIsSupported = false;
+double delta_time_sec = 0.0;
 
 
 #ifdef macintosh
@@ -129,40 +107,9 @@ FGGeneral general;
 // Specify our current idle function state.  This is used to run all
 // our initializations out of the idle callback so that we can get a
 // splash screen up and running right away.
-static int idle_state = 0;
-static long global_multi_loop;
+int idle_state = 0;
+long global_multi_loop;
 
-// fog constants.  I'm a little nervous about putting actual code out
-// here but it seems to work (?)
-static const double m_log01 = -log( 0.01 );
-static const double sqrt_m_log01 = sqrt( m_log01 );
-static GLfloat fog_exp_density;
-static GLfloat fog_exp2_density;
-static GLfloat rwy_exp2_punch_through;
-static GLfloat taxi_exp2_punch_through;
-static GLfloat ground_exp2_punch_through;
-
-// Sky structures
-SGSky *thesky;
-
-#ifdef FG_USE_CLOUDS_3D
-  SkySceneLoader *sgClouds3d;
-  bool _bcloud_orig = true;
-#endif
-
-// hack
-sgMat4 copy_of_ssgOpenGLAxisSwapMatrix =
-{
-  {  1.0f,  0.0f,  0.0f,  0.0f },
-  {  0.0f,  0.0f, -1.0f,  0.0f },
-  {  0.0f,  1.0f,  0.0f,  0.0f },
-  {  0.0f,  0.0f,  0.0f,  1.0f }
-};
-
-ssgSimpleState *cloud3d_imposter_state;
-ssgSimpleState *default_state;
-ssgSimpleState *hud_and_panel;
-ssgSimpleState *menus;
 
 SGTimeStamp last_time_stamp;
 SGTimeStamp current_time_stamp;
@@ -172,762 +119,6 @@ SGTimeStamp current_time_stamp;
 extern int _bootstrap_OSInit;
 
 
-void fgBuildRenderStates( void ) {
-    default_state = new ssgSimpleState;
-    default_state->ref();
-    default_state->disable( GL_TEXTURE_2D );
-    default_state->enable( GL_CULL_FACE );
-    default_state->enable( GL_COLOR_MATERIAL );
-    default_state->setColourMaterial( GL_AMBIENT_AND_DIFFUSE );
-    default_state->setMaterial( GL_EMISSION, 0, 0, 0, 1 );
-    default_state->setMaterial( GL_SPECULAR, 0, 0, 0, 1 );
-    default_state->disable( GL_BLEND );
-    default_state->disable( GL_ALPHA_TEST );
-    default_state->disable( GL_LIGHTING );
-
-    cloud3d_imposter_state = new ssgSimpleState;
-    cloud3d_imposter_state->ref();
-    cloud3d_imposter_state->enable( GL_TEXTURE_2D );
-    cloud3d_imposter_state->enable( GL_CULL_FACE );
-    cloud3d_imposter_state->enable( GL_COLOR_MATERIAL );
-    cloud3d_imposter_state->setColourMaterial( GL_AMBIENT_AND_DIFFUSE );
-    cloud3d_imposter_state->setMaterial( GL_DIFFUSE, 1, 1, 1, 1 );
-    cloud3d_imposter_state->setMaterial( GL_AMBIENT, 1, 1, 1, 1 );
-    cloud3d_imposter_state->setMaterial( GL_EMISSION, 0, 0, 0, 1 );
-    cloud3d_imposter_state->setMaterial( GL_SPECULAR, 0, 0, 0, 1 );
-    cloud3d_imposter_state->enable( GL_BLEND );
-    cloud3d_imposter_state->enable( GL_ALPHA_TEST );
-    cloud3d_imposter_state->disable( GL_LIGHTING );
-
-    hud_and_panel = new ssgSimpleState;
-    hud_and_panel->ref();
-    hud_and_panel->disable( GL_CULL_FACE );
-    hud_and_panel->disable( GL_TEXTURE_2D );
-    hud_and_panel->disable( GL_LIGHTING );
-    hud_and_panel->enable( GL_BLEND );
-
-    menus = new ssgSimpleState;
-    menus->ref();
-    menus->disable( GL_CULL_FACE );
-    menus->disable( GL_TEXTURE_2D );
-    menus->enable( GL_BLEND );
-}
-
-
-// fgInitVisuals() -- Initialize various GL/view parameters
-void fgInitVisuals( void ) {
-
-    FGLight *l = (FGLight *)(globals->get_subsystem("lighting"));
-
-    // Go full screen if requested ...
-    if ( fgGetBool("/sim/startup/fullscreen") ) {
-        fgOSFullScreen();
-    }
-
-    // If enabled, normal vectors specified with glNormal are scaled
-    // to unit length after transformation.  Enabling this has
-    // performance implications.  See the docs for glNormal.
-    // glEnable( GL_NORMALIZE );
-
-    glEnable( GL_LIGHTING );
-    glEnable( GL_LIGHT0 );
-    // glLightfv( GL_LIGHT0, GL_POSITION, l->sun_vec );  // done later with ssg
-
-    sgVec3 sunpos;
-    sgSetVec3( sunpos, l->sun_vec()[0], l->sun_vec()[1], l->sun_vec()[2] );
-    ssgGetLight( 0 ) -> setPosition( sunpos );
-
-    glFogi (GL_FOG_MODE, GL_EXP2);
-    if ( (!strcmp(fgGetString("/sim/rendering/fog"), "disabled")) || 
-         (!fgGetBool("/sim/rendering/shading"))) {
-        // if fastest fog requested, or if flat shading force fastest
-        glHint ( GL_FOG_HINT, GL_FASTEST );
-    } else if ( !strcmp(fgGetString("/sim/rendering/fog"), "nicest") ) {
-        glHint ( GL_FOG_HINT, GL_NICEST );
-    }
-    if ( fgGetBool("/sim/rendering/wireframe") ) {
-        // draw wire frame
-        glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
-    }
-
-    // This is the default anyways, but it can't hurt
-    glFrontFace ( GL_CCW );
-
-    // Just testing ...
-    // glEnable(GL_POINT_SMOOTH);
-    // glEnable(GL_LINE_SMOOTH);
-    // glEnable(GL_POLYGON_SMOOTH);      
-}
-
-
-// For HiRes screen Dumps using Brian Pauls TR Library
-void trRenderFrame( void ) {
-#ifdef FG_ENABLE_MULTIPASS_CLOUDS
-    bool multi_pass_clouds = fgGetBool("/sim/rendering/multi-pass-clouds") &&
-                            !SGCloudLayer::enable_bump_mapping; // ugly artefact now
-#else
-    bool multi_pass_clouds = false;
-#endif
-    bool draw_clouds = fgGetBool("/environment/clouds/status");
-
-    if ( fgPanelVisible() ) {
-        GLfloat height = fgGetInt("/sim/startup/ysize");
-        GLfloat view_h =
-            (globals->get_current_panel()->getViewHeight() - globals->get_current_panel()->getYOffset())
-            * (height / 768.0) + 1;
-        glTranslatef( 0.0, view_h, 0.0 );
-    }
-
-    static GLfloat black[4] = { 0.0, 0.0, 0.0, 1.0 };
-    static GLfloat white[4] = { 1.0, 1.0, 1.0, 1.0 };
-
-    FGLight *l = (FGLight *)(globals->get_subsystem("lighting"));
-
-    glClearColor(l->adj_fog_color()[0], l->adj_fog_color()[1], 
-                 l->adj_fog_color()[2], l->adj_fog_color()[3]);
-
-    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
-
-    // set the opengl state to known default values
-    default_state->force();
-
-    glEnable( GL_FOG );
-    glFogf  ( GL_FOG_DENSITY, fog_exp2_density);
-    glFogi  ( GL_FOG_MODE,    GL_EXP2 );
-    glFogfv ( GL_FOG_COLOR,   l->adj_fog_color() );
-
-    // GL_LIGHT_MODEL_AMBIENT has a default non-zero value so if
-    // we only update GL_AMBIENT for our lights we will never get
-    // a completely dark scene.  So, we set GL_LIGHT_MODEL_AMBIENT
-    // explicitely to black.
-    glLightModelfv( GL_LIGHT_MODEL_AMBIENT, black );
-    glLightModeli( GL_LIGHT_MODEL_LOCAL_VIEWER, GL_FALSE );
-
-    ssgGetLight( 0 ) -> setColour( GL_AMBIENT, l->scene_ambient() );
-
-    // texture parameters
-    glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ) ;
-    glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST ) ;
-
-    // we need a white diffuse light for the phase of the moon
-    ssgGetLight( 0 ) -> setColour( GL_DIFFUSE, white );
-    thesky->preDraw( cur_fdm_state->get_Altitude() * SG_FEET_TO_METER,
-                     fog_exp2_density );
-
-    // draw the ssg scene
-    // return to the desired diffuse color
-    ssgGetLight( 0 ) -> setColour( GL_DIFFUSE, l->scene_diffuse() );
-    glEnable( GL_DEPTH_TEST );
-    ssgSetNearFar( scene_nearplane, scene_farplane );
-    if ( draw_clouds ) {
-        // Draw the terrain
-        FGTileMgr::set_tile_filter( true );
-        sgSetModelFilter( false );
-        globals->get_aircraft_model()->select( false );
-        ssgCullAndDraw( globals->get_scenery()->get_scene_graph() );
-        // Disable depth buffer update, draw the clouds
-        glDepthMask( GL_FALSE );
-        thesky->drawUpperClouds();
-        if ( multi_pass_clouds ) {
-            thesky->drawLowerClouds();
-        }
-        glDepthMask( GL_TRUE );
-        if ( multi_pass_clouds ) {
-            // Draw the objects except the aircraft
-            //  and update the stencil buffer with 1
-            glEnable( GL_STENCIL_TEST );
-            glStencilFunc( GL_ALWAYS, 1, 1 );
-            glStencilOp( GL_KEEP, GL_KEEP, GL_REPLACE );
-        }
-        FGTileMgr::set_tile_filter( false );
-        sgSetModelFilter( true );
-        ssgCullAndDraw( globals->get_scenery()->get_scene_graph() );
-    } else {
-        FGTileMgr::set_tile_filter( true );
-        sgSetModelFilter( true );
-        globals->get_aircraft_model()->select( false );
-        ssgCullAndDraw( globals->get_scenery()->get_scene_graph() );
-    }
-
-    // draw the lights
-    glFogf (GL_FOG_DENSITY, rwy_exp2_punch_through);
-    ssgSetNearFar( scene_nearplane, scene_farplane );
-    ssgCullAndDraw( globals->get_scenery()->get_vasi_lights_root() );
-    ssgCullAndDraw( globals->get_scenery()->get_rwy_lights_root() );
-
-    ssgCullAndDraw( globals->get_scenery()->get_gnd_lights_root() );
-
-    if ( draw_clouds ) {
-        if ( multi_pass_clouds ) {
-            // Disable depth buffer update, draw the clouds where the
-            //  objects overwrite the already drawn clouds, by testing
-            //  the stencil buffer against 1
-            glDepthMask( GL_FALSE );
-            glStencilFunc( GL_EQUAL, 1, 1 );
-            glStencilOp( GL_KEEP, GL_KEEP, GL_KEEP );
-            thesky->drawUpperClouds();
-            thesky->drawLowerClouds();
-            glDepthMask( GL_TRUE );
-            glDisable( GL_STENCIL_TEST );
-        } else {
-            glDepthMask( GL_FALSE );
-            thesky->drawLowerClouds();
-            glDepthMask( GL_TRUE );
-        }
-    }
-
-    globals->get_aircraft_model()->select( true );
-    globals->get_model_mgr()->draw();
-    globals->get_aircraft_model()->draw();
-}
-
-
-// Update all Visuals (redraws anything graphics related)
-void fgRenderFrame() {
-    bool scenery_loaded = fgGetBool("sim/sceneryloaded") || fgGetBool("sim/sceneryloaded-override");
-    bool draw_otw = fgGetBool("/sim/rendering/draw-otw");
-    bool skyblend = fgGetBool("/sim/rendering/skyblend");
-    bool enhanced_lighting = fgGetBool("/sim/rendering/enhanced-lighting");
-    bool distance_attenuation = fgGetBool("/sim/rendering/distance-attenuation");
-#ifdef FG_ENABLE_MULTIPASS_CLOUDS
-    bool multi_pass_clouds = fgGetBool("/sim/rendering/multi-pass-clouds") && 
-                                !SGCloudLayer::enable_bump_mapping;  // ugly artefact now
-#else
-    bool multi_pass_clouds = false;
-#endif
-    bool draw_clouds = fgGetBool("/environment/clouds/status");
-
-    GLfloat black[4] = { 0.0, 0.0, 0.0, 1.0 };
-    GLfloat white[4] = { 1.0, 1.0, 1.0, 1.0 };
-
-    // static const SGPropertyNode *longitude
-    //     = fgGetNode("/position/longitude-deg");
-    // static const SGPropertyNode *latitude
-    //     = fgGetNode("/position/latitude-deg");
-    // static const SGPropertyNode *altitude
-    //     = fgGetNode("/position/altitude-ft");
-    static const SGPropertyNode *groundlevel_nearplane
-        = fgGetNode("/sim/current-view/ground-level-nearplane-m");
-
-    FGLight *l = (FGLight *)(globals->get_subsystem("lighting"));
-    static double last_visibility = -9999;
-
-    // update fog params
-    double actual_visibility;
-    if (fgGetBool("/environment/clouds/status"))
-        actual_visibility = thesky->get_visibility();
-    else
-        actual_visibility = fgGetDouble("/environment/visibility-m");
-    if ( actual_visibility != last_visibility ) {
-        last_visibility = actual_visibility;
-
-        fog_exp_density = m_log01 / actual_visibility;
-        fog_exp2_density = sqrt_m_log01 / actual_visibility;
-        ground_exp2_punch_through = sqrt_m_log01 / (actual_visibility * 1.5);
-        if ( actual_visibility < 8000 ) {
-            rwy_exp2_punch_through = sqrt_m_log01 / (actual_visibility * 2.5);
-            taxi_exp2_punch_through = sqrt_m_log01 / (actual_visibility * 1.5);
-        } else {
-            rwy_exp2_punch_through = sqrt_m_log01 / ( 8000 * 2.5 );
-            taxi_exp2_punch_through = sqrt_m_log01 / ( 8000 * 1.5 );
-        }
-    }
-
-    // double angle;
-    // GLfloat black[4] = { 0.0, 0.0, 0.0, 1.0 };
-    // GLfloat white[4] = { 1.0, 1.0, 1.0, 1.0 };
-    // GLfloat terrain_color[4] = { 0.54, 0.44, 0.29, 1.0 };
-    // GLfloat mat_shininess[] = { 10.0 };
-    GLbitfield clear_mask;
-
-    if ( idle_state != 1000 || !scenery_loaded ) {
-        // still initializing, draw the splash screen
-        if ( fgGetBool("/sim/startup/splash-screen") ) {
-            fgSplashUpdate(0.0, 1.0);
-        }
-        // Keep resetting sim time while the sim is initializing
-        globals->set_sim_time_sec( 0.0 );
-        SGAnimation::set_sim_time_sec( 0.0 );
-    } else {
-        // idle_state is now 1000 meaning we've finished all our
-        // initializations and are running the main loop, so this will
-        // now work without seg faulting the system.
-
-        FGViewer *current__view = globals->get_current_view();
-
-        // calculate our current position in cartesian space
-        globals->get_scenery()->set_center( globals->get_scenery()->get_next_center() );
-
-        // update view port
-        fgReshape( fgGetInt("/sim/startup/xsize"),
-                   fgGetInt("/sim/startup/ysize") );
-
-        if ( fgGetBool("/sim/rendering/clouds3d") ) {
-            glClear( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT );
-            cloud3d_imposter_state->force();
-            glDisable( GL_FOG );
-            glColor4f( 1.0, 1.0, 1.0, 1.0 );
-            glEnable(GL_DEPTH_TEST);
-            glEnable(GL_BLEND);
-            glBlendFunc( GL_ONE, GL_ONE_MINUS_SRC_ALPHA ) ;
-
-#ifdef FG_USE_CLOUDS_3D
-            if ( _bcloud_orig ) {
-                Point3D c = globals->get_scenery()->get_center();
-                sgClouds3d->Set_Cloud_Orig( &c );
-                _bcloud_orig = false;
-            }
-            sgClouds3d->Update( current__view->get_absolute_view_pos() );
-#endif
-            glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ) ;
-            glDisable(GL_DEPTH_TEST);
-        }
-
-        clear_mask = GL_DEPTH_BUFFER_BIT;
-        if ( fgGetBool("/sim/rendering/wireframe") ) {
-            clear_mask |= GL_COLOR_BUFFER_BIT;
-        }
-
-        if ( skyblend ) {
-            if ( fgGetBool("/sim/rendering/textures") ) {
-            // glClearColor(black[0], black[1], black[2], black[3]);
-            glClearColor(l->adj_fog_color()[0], l->adj_fog_color()[1],
-                         l->adj_fog_color()[2], l->adj_fog_color()[3]);
-            clear_mask |= GL_COLOR_BUFFER_BIT;
-            }
-        } else {
-            glClearColor(l->sky_color()[0], l->sky_color()[1],
-                         l->sky_color()[2], l->sky_color()[3]);
-            clear_mask |= GL_COLOR_BUFFER_BIT;
-        }
-        if ( multi_pass_clouds && draw_clouds ) {
-            glClearStencil( 0 );
-            clear_mask |= GL_STENCIL_BUFFER_BIT;
-        }
-        glClear( clear_mask );
-
-        // Tell GL we are switching to model view parameters
-
-        // I really should create a derived ssg node or use a call
-        // back or something so that I can draw the sky within the
-        // ssgCullAndDraw() function, but for now I just mimic what
-        // ssg does to set up the model view matrix
-        glMatrixMode(GL_MODELVIEW);
-        glLoadIdentity();
-        ssgSetCamera( (sgVec4 *)current__view->get_VIEW() );
-
-        // set the opengl state to known default values
-        default_state->force();
-
-        // update fog params if visibility has changed
-        double visibility_meters = fgGetDouble("/environment/visibility-m");
-        thesky->set_visibility(visibility_meters);
-
-        thesky->modify_vis( cur_fdm_state->get_Altitude() * SG_FEET_TO_METER,
-                            ( global_multi_loop * fgGetInt("/sim/speed-up") )
-                            / (double)fgGetInt("/sim/model-hz") );
-
-        // Set correct opengl fog density
-        glFogf (GL_FOG_DENSITY, fog_exp2_density);
-
-        // update the sky dome
-        if ( skyblend ) {
-            /*
-             SG_LOG( SG_GENERAL, SG_BULK, "thesky->repaint() sky_color = "
-             << l->sky_color()[0] << " "
-             << l->sky_color()[1] << " "
-             << l->sky_color()[2] << " "
-             << l->sky_color()[3] );
-            SG_LOG( SG_GENERAL, SG_BULK, "    fog = "
-             << l->fog_color()[0] << " "
-             << l->fog_color()[1] << " "
-             << l->fog_color()[2] << " "
-             << l->fog_color()[3] ); 
-            SG_LOG( SG_GENERAL, SG_BULK,
-                    "    sun_angle = " << l->sun_angle
-             << "    moon_angle = " << l->moon_angle );
-            */
-
-            static SGSkyColor scolor;
-            FGLight *l = (FGLight *)(globals->get_subsystem("lighting"));
-
-            scolor.sky_color   = l->sky_color();
-            scolor.fog_color   = l->adj_fog_color();
-            scolor.cloud_color = l->cloud_color();
-            scolor.sun_angle   = l->get_sun_angle();
-            scolor.moon_angle  = l->get_moon_angle();
-            scolor.nplanets    = globals->get_ephem()->getNumPlanets();
-            scolor.nstars      = globals->get_ephem()->getNumStars();
-            scolor.planet_data = globals->get_ephem()->getPlanets();
-            scolor.star_data   = globals->get_ephem()->getStars();
-
-            thesky->repaint( scolor );
-
-            /*
-            SG_LOG( SG_GENERAL, SG_BULK,
-                    "thesky->reposition( view_pos = " << view_pos[0] << " "
-             << view_pos[1] << " " << view_pos[2] );
-            SG_LOG( SG_GENERAL, SG_BULK,
-                    "    zero_elev = " << zero_elev[0] << " "
-             << zero_elev[1] << " " << zero_elev[2]
-             << " lon = " << cur_fdm_state->get_Longitude()
-             << " lat = " << cur_fdm_state->get_Latitude() );
-            SG_LOG( SG_GENERAL, SG_BULK,
-                    "    sun_rot = " << l->get_sun_rotation
-             << " gst = " << SGTime::cur_time_params->getGst() );
-            SG_LOG( SG_GENERAL, SG_BULK,
-                 "    sun ra = " << globals->get_ephem()->getSunRightAscension()
-              << " sun dec = " << globals->get_ephem()->getSunDeclination()
-              << " moon ra = " << globals->get_ephem()->getMoonRightAscension()
-              << " moon dec = " << globals->get_ephem()->getMoonDeclination() );
-            */
-
-            // The sun and moon distances are scaled down versions
-            // of the actual distance to get both the moon and the sun
-            // within the range of the far clip plane.
-            // Moon distance:    384,467 kilometers
-            // Sun distance: 150,000,000 kilometers
-            double sun_horiz_eff, moon_horiz_eff;
-            if (fgGetBool("/sim/rendering/horizon-effect")) {
-            sun_horiz_eff = 0.67+pow(0.5+cos(l->get_sun_angle())*2/2, 0.33)/3;
-            moon_horiz_eff = 0.67+pow(0.5+cos(l->get_moon_angle())*2/2, 0.33)/3;
-            } else {
-               sun_horiz_eff = moon_horiz_eff = 1.0;
-            }
-
-            static SGSkyState sstate;
-
-            sstate.view_pos  = current__view->get_view_pos();
-            sstate.zero_elev = current__view->get_zero_elev();
-            sstate.view_up   = current__view->get_world_up();
-            sstate.lon       = current__view->getLongitude_deg()
-                                * SGD_DEGREES_TO_RADIANS;
-            sstate.lat       = current__view->getLatitude_deg()
-                                * SGD_DEGREES_TO_RADIANS;
-            sstate.alt       = current__view->getAltitudeASL_ft()
-                                * SG_FEET_TO_METER;
-            sstate.spin      = l->get_sun_rotation();
-            sstate.gst       = globals->get_time_params()->getGst();
-            sstate.sun_ra    = globals->get_ephem()->getSunRightAscension();
-            sstate.sun_dec   = globals->get_ephem()->getSunDeclination();
-            sstate.sun_dist  = 50000.0 * sun_horiz_eff;
-            sstate.moon_ra   = globals->get_ephem()->getMoonRightAscension();
-            sstate.moon_dec  = globals->get_ephem()->getMoonDeclination();
-            sstate.moon_dist = 40000.0 * moon_horiz_eff;
-
-            thesky->reposition( sstate, delta_time_sec );
-        }
-
-        glEnable( GL_DEPTH_TEST );
-        if ( strcmp(fgGetString("/sim/rendering/fog"), "disabled") ) {
-            glEnable( GL_FOG );
-            glFogi( GL_FOG_MODE, GL_EXP2 );
-            glFogfv( GL_FOG_COLOR, l->adj_fog_color() );
-        }
-
-        // set sun/lighting parameters
-        ssgGetLight( 0 ) -> setPosition( l->sun_vec() );
-
-        // GL_LIGHT_MODEL_AMBIENT has a default non-zero value so if
-        // we only update GL_AMBIENT for our lights we will never get
-        // a completely dark scene.  So, we set GL_LIGHT_MODEL_AMBIENT
-        // explicitely to black.
-        glLightModelfv( GL_LIGHT_MODEL_AMBIENT, black );
-
-        ssgGetLight( 0 ) -> setColour( GL_AMBIENT, l->scene_ambient() );
-        ssgGetLight( 0 ) -> setColour( GL_DIFFUSE, l->scene_diffuse() );
-        ssgGetLight( 0 ) -> setColour( GL_SPECULAR, l->scene_specular() );
-
-        // texture parameters
-        // glEnable( GL_TEXTURE_2D );
-        glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ) ;
-        glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST ) ;
-
-        // glMatrixMode( GL_PROJECTION );
-        // glLoadIdentity();
-        ssgSetFOV( current__view->get_h_fov(),
-                   current__view->get_v_fov() );
-
-        double agl =
-            current_aircraft.fdm_state->get_Altitude() * SG_FEET_TO_METER
-            - globals->get_scenery()->get_cur_elev();
-
-        if ( agl > 10.0 ) {
-            scene_nearplane = 10.0f;
-            scene_farplane = 120000.0f;
-        } else {
-            scene_nearplane = groundlevel_nearplane->getDoubleValue();
-            scene_farplane = 120000.0f;
-        }
-
-        ssgSetNearFar( scene_nearplane, scene_farplane );
-
-#ifdef FG_MPLAYER_AS
-        // Update any multiplayer models
-        globals->get_multiplayer_rx_mgr()->Update();
-#endif
-
-        if ( draw_otw && skyblend ) {
-            // draw the sky backdrop
-
-            // we need a white diffuse light for the phase of the moon
-            ssgGetLight( 0 ) -> setColour( GL_DIFFUSE, white );
-            thesky->preDraw( cur_fdm_state->get_Altitude() * SG_FEET_TO_METER,
-                             fog_exp2_density );
-            // return to the desired diffuse color
-            ssgGetLight( 0 ) -> setColour( GL_DIFFUSE, l->scene_diffuse() );
-        }
-
-        // draw the ssg scene
-        glEnable( GL_DEPTH_TEST );
-
-        ssgSetNearFar( scene_nearplane, scene_farplane );
-
-        if ( fgGetBool("/sim/rendering/wireframe") ) {
-            // draw wire frame
-            glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
-        }
-        if ( draw_otw ) {
-            if ( draw_clouds ) {
-
-                // Draw the terrain
-                FGTileMgr::set_tile_filter( true );
-                sgSetModelFilter( false );
-                globals->get_aircraft_model()->select( false );
-                ssgCullAndDraw( globals->get_scenery()->get_scene_graph() );
-
-                // Disable depth buffer update, draw the clouds
-                glDepthMask( GL_FALSE );
-                thesky->drawUpperClouds();
-                if ( multi_pass_clouds ) {
-                    thesky->drawLowerClouds();
-                }
-                glDepthMask( GL_TRUE );
-
-                if ( multi_pass_clouds ) {
-                    // Draw the objects except the aircraft
-                    //  and update the stencil buffer with 1
-                    glEnable( GL_STENCIL_TEST );
-                    glStencilFunc( GL_ALWAYS, 1, 1 );
-                    glStencilOp( GL_KEEP, GL_KEEP, GL_REPLACE );
-                }
-                FGTileMgr::set_tile_filter( false );
-                sgSetModelFilter( true );
-                ssgCullAndDraw( globals->get_scenery()->get_scene_graph() );
-            } else {
-                FGTileMgr::set_tile_filter( true );
-                sgSetModelFilter( true );
-                globals->get_aircraft_model()->select( false );
-                ssgCullAndDraw( globals->get_scenery()->get_scene_graph() );
-            }
-        }
-
-        // This is a bit kludgy.  Every 200 frames, do an extra
-        // traversal of the scene graph without drawing anything, but
-        // with the field-of-view set to 360x360 degrees.  This
-        // ensures that out-of-range random objects that are not in
-        // the current view frustum will still be freed properly.
-        static int counter = 0;
-        counter++;
-        if (counter == 200) {
-            sgFrustum f;
-            f.setFOV(360, 360);
-                    // No need to put the near plane too close;
-                    // this way, at least the aircraft can be
-                    // culled.
-            f.setNearFar(1000, 1000000);
-            sgMat4 m;
-            ssgGetModelviewMatrix(m);
-            FGTileMgr::set_tile_filter( true );
-            sgSetModelFilter( true );
-            globals->get_scenery()->get_scene_graph()->cull(&f, m, true);
-            counter = 0;
-        }
-
-        // change state for lighting here
-
-        // draw runway lighting
-        glFogf (GL_FOG_DENSITY, rwy_exp2_punch_through);
-        ssgSetNearFar( scene_nearplane, scene_farplane );
-
-        if ( enhanced_lighting ) {
-
-            // Enable states for drawing points with GL_extension
-            glEnable(GL_POINT_SMOOTH);
-
-            if ( distance_attenuation && glPointParameterIsSupported )
-            {
-                // Enable states for drawing points with GL_extension
-                glEnable(GL_POINT_SMOOTH);
-
-                float quadratic[3] = {1.0, 0.001, 0.0000001};
-                // makes the points fade as they move away
-                glPointParameterfvPtr(GL_DISTANCE_ATTENUATION_EXT, quadratic);
-                glPointParameterfPtr(GL_POINT_SIZE_MIN_EXT, 1.0); 
-            }
-
-            glPointSize(4.0);
-
-            // blending function for runway lights
-            glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA) ;
-        }
-
-        glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
-        glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
-        glEnable(GL_TEXTURE_GEN_S);
-        glEnable(GL_TEXTURE_GEN_T);
-        glPolygonMode(GL_FRONT, GL_POINT);
-
-        // draw runway lighting
-        if ( draw_otw ) {
-            ssgCullAndDraw( globals->get_scenery()->get_vasi_lights_root() );
-            ssgCullAndDraw( globals->get_scenery()->get_rwy_lights_root() );
-        }
-
-        // change punch through and then draw taxi lighting
-        glFogf ( GL_FOG_DENSITY, fog_exp2_density );
-        // sgVec3 taxi_fog;
-        // sgSetVec3( taxi_fog, 0.0, 0.0, 0.0 );
-        // glFogfv ( GL_FOG_COLOR, taxi_fog );
-        if ( draw_otw ) {
-            ssgCullAndDraw( globals->get_scenery()->get_taxi_lights_root() );
-        }
-
-        // clean up lighting
-        glPolygonMode(GL_FRONT, GL_FILL);
-        glDisable(GL_TEXTURE_GEN_S);
-        glDisable(GL_TEXTURE_GEN_T);
-
-        //static int _frame_count = 0;
-        //if (_frame_count % 30 == 0) {
-        //  printf("SSG: %s\n", ssgShowStats());
-        //}
-        //else {
-        //  ssgShowStats();
-        //}
-        //_frame_count++;
-
-
-        if ( enhanced_lighting ) {
-            if ( distance_attenuation && glPointParameterIsSupported ) {
-                glPointParameterfvPtr(GL_DISTANCE_ATTENUATION_EXT,
-                                      default_attenuation);
-            }
-
-            glPointSize(1.0);
-            glDisable(GL_POINT_SMOOTH);
-        }
-
-        // draw ground lighting
-        glFogf (GL_FOG_DENSITY, ground_exp2_punch_through);
-        if ( draw_otw ) {
-            ssgCullAndDraw( globals->get_scenery()->get_gnd_lights_root() );
-        }
-
-        if ( draw_otw && fgGetBool("/sim/rendering/clouds3d") ) {
-            glDisable( GL_FOG );
-            glDisable( GL_LIGHTING );
-            // cout << "drawing new clouds" << endl;
-
-            glEnable(GL_DEPTH_TEST);
-            glEnable(GL_BLEND);
-            glBlendFunc( GL_ONE, GL_ONE_MINUS_SRC_ALPHA ) ;
-
-            /*
-            glEnable( GL_TEXTURE_2D );
-            glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-            glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-            glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-            glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-            */
-
-#ifdef FG_USE_CLOUDS_3D
-            sgClouds3d->Draw((sgVec4 *)current__view->get_VIEW());
-#endif
-            glEnable( GL_FOG );
-            glEnable( GL_LIGHTING );
-            glEnable( GL_DEPTH_TEST );
-            glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ) ;
-        }
-
-        if ( draw_otw && draw_clouds ) {
-            if ( multi_pass_clouds ) {
-                // Disable depth buffer update, draw the clouds where the
-                //  objects overwrite the already drawn clouds, by testing
-                //  the stencil buffer against 1
-                glDepthMask( GL_FALSE );
-                glStencilFunc( GL_EQUAL, 1, 1 );
-                glStencilOp( GL_KEEP, GL_KEEP, GL_KEEP );
-                thesky->drawUpperClouds();
-                thesky->drawLowerClouds();
-                glDepthMask( GL_TRUE );
-                glDisable( GL_STENCIL_TEST );
-            } else {
-                glDepthMask( GL_FALSE );
-                thesky->drawLowerClouds();
-                glDepthMask( GL_TRUE );
-            }
-        }
-
-        if ( draw_otw ) {
-            FGTileMgr::set_tile_filter( false );
-            sgSetModelFilter( false );
-            globals->get_aircraft_model()->select( true );
-            globals->get_model_mgr()->draw();
-            globals->get_aircraft_model()->draw();
-            // If the view is internal, the previous line draw the 
-            //  cockpit with modified near/far clip planes and deselect
-            //  the aircraft in the global scenegraph
-            // Otherwise, it just enables the aircraft: The scenegraph
-            //  must be drawn again to see the plane.
-            ssgCullAndDraw( globals->get_scenery()->get_scene_graph() );
-            FGTileMgr::set_tile_filter( true );
-            sgSetModelFilter( true );
-            globals->get_aircraft_model()->select( true );
-        }
-
-        // display HUD && Panel
-        glDisable( GL_FOG );
-        glDisable( GL_DEPTH_TEST );
-        // glDisable( GL_CULL_FACE );
-        // glDisable( GL_TEXTURE_2D );
-
-        // update the controls subsystem
-        globals->get_controls()->update(delta_time_sec);
-
-        hud_and_panel->apply();
-        fgCockpitUpdate();
-
-        // Use the hud_and_panel ssgSimpleState for rendering the ATC output
-        // This only works properly if called before the panel call
-        if((fgGetBool("/sim/ATC/enabled")) || (fgGetBool("/sim/ai-traffic/enabled")))
-            globals->get_ATC_display()->update(delta_time_sec);
-
-        // update the panel subsystem
-        if ( globals->get_current_panel() != NULL ) {
-            globals->get_current_panel()->update(delta_time_sec);
-        }
-        fgUpdate3DPanels();
-
-        // We can do translucent menus, so why not. :-)
-        menus->apply();
-        glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ) ;
-        puDisplay();
-        // glDisable ( GL_BLEND ) ;
-
-        glEnable( GL_DEPTH_TEST );
-        glEnable( GL_FOG );
-
-        // Fade out the splash screen over the first three seconds.
-        double t = globals->get_sim_time_sec();
-        if ( t <= 1.0 ) {
-            fgSplashUpdate(0.0, 1.0);
-        } else if ( t <= 3.0) {
-            fgSplashUpdate(0.0, (3.0 - t) / 2.0);
-        }
-    }
-}
-
 
 // Update internal time dependent calculations (i.e. flight model)
 // FIXME: this distinction is obsolete; all subsystems now get delta
@@ -1192,6 +383,11 @@ static void fgMainLoop( void ) {
     if (fgGetBool("/sim/ai-traffic/enabled"))
         globals->get_AI_mgr()->update(delta_time_sec);
 
+#ifdef FG_MPLAYER_AS
+    // Update any multiplayer models
+    globals->get_multiplayer_rx_mgr()->Update();
+#endif
+
     // Run flight model
 
     // Calculate model iterations needed for next frame
@@ -1433,7 +629,7 @@ static void fgIdleFunction ( void ) {
         fgInitTimeOffset();
 
         // setup OpenGL view parameters
-        fgInitVisuals();
+        globals->get_renderer()->init();
 
         // Read the list of available aircrafts
         fgReadAircraft();
@@ -1448,8 +644,8 @@ static void fgIdleFunction ( void ) {
         idle_state = 1000;
 
         SG_LOG( SG_GENERAL, SG_INFO, "Panel visible = " << fgPanelVisible() );
-        fgReshape( fgGetInt("/sim/startup/xsize"),
-               fgGetInt("/sim/startup/ysize") );
+        globals->get_renderer()->resize( fgGetInt("/sim/startup/xsize"),
+                                         fgGetInt("/sim/startup/ysize") );
 
     } 
 
@@ -1467,46 +663,6 @@ static void fgIdleFunction ( void ) {
     }
 }
 
-// options.cxx needs to see this for toggle_panel()
-// Handle new window size or exposure
-void fgReshape( int width, int height ) {
-    int view_h;
-
-    if ( (!fgGetBool("/sim/virtual-cockpit"))
-         && fgPanelVisible() && idle_state == 1000 ) {
-        view_h = (int)(height * (globals->get_current_panel()->getViewHeight() -
-                             globals->get_current_panel()->getYOffset()) / 768.0);
-    } else {
-        view_h = height;
-    }
-
-    glViewport( 0, (GLint)(height - view_h), (GLint)(width), (GLint)(view_h) );
-
-    fgSetInt("/sim/startup/xsize", width);
-    fgSetInt("/sim/startup/ysize", height);
-    guiInitMouse(width, height);
-
-    // for all views
-    FGViewMgr *viewmgr = globals->get_viewmgr();
-    if (viewmgr) {
-      for ( int i = 0; i < viewmgr->size(); ++i ) {
-        viewmgr->get_view(i)->
-          set_aspect_ratio((float)view_h / (float)width);
-      }
-
-      ssgSetFOV( viewmgr->get_current_view()->get_h_fov(),
-               viewmgr->get_current_view()->get_v_fov() );
-
-#ifdef FG_USE_CLOUDS_3D
-      sgClouds3d->Resize( viewmgr->get_current_view()->get_h_fov(),
-               viewmgr->get_current_view()->get_v_fov() );
-#endif
-    }
-
-    fgHUDReshape();
-
-}
-
 
 // Main top level initialization
 bool fgMainInit( int argc, char **argv ) {
@@ -1586,9 +742,9 @@ bool fgMainInit( int argc, char **argv ) {
     _bootstrap_OSInit++;
 #endif
 
-    fgRegisterWindowResizeHandler( fgReshape );
+    fgRegisterWindowResizeHandler( FGRenderer::resize );
     fgRegisterIdleHandler( fgIdleFunction );
-    fgRegisterDrawHandler( fgRenderFrame );
+    fgRegisterDrawHandler( FGRenderer::update );
 
 #ifdef FG_ENABLE_MULTIPASS_CLOUDS
     bool get_stencil_buffer = true;
@@ -1780,7 +936,7 @@ bool fgMainInit( int argc, char **argv ) {
     // lighting->addKid( airport );
 
     // build our custom render states
-    fgBuildRenderStates();
+    globals->get_renderer()->build_states();
 
     try {
         // pass control off to the master event handler
diff --git a/src/Main/main.hxx b/src/Main/main.hxx
index d78b050bd..440882389 100644
--- a/src/Main/main.hxx
+++ b/src/Main/main.hxx
@@ -2,27 +2,16 @@
 #ifndef __FG_MAIN_HXX
 #define __FG_MAIN_HXX 1
 
-#include <simgear/screen/extensions.hxx>
-
-class SGSky;
-extern SGSky *thesky;
-
-#define FG_ENABLE_MULTIPASS_CLOUDS 1
-
-extern glPointParameterfProc glPointParameterfPtr;
-extern glPointParameterfvProc glPointParameterfvPtr;
-extern bool glPointParameterIsSupported;
-
 void fgLoadDCS (void);
 void fgUpdateDCS (void);
-void fgBuildRenderStates( void );
-void fgInitVisuals( void );
-void fgRenderFrame();
 void fgUpdateTimeDepCalcs();
 void fgInitTimeDepCalcs( void );
-void fgReshape( int width, int height );
 
 bool fgMainInit( int argc, char **argv );
 
 
+extern int idle_state;
+extern long global_multi_loop;
+extern double delta_time_sec;
+
 #endif
diff --git a/src/Main/renderer.cxx b/src/Main/renderer.cxx
index 3319a7e7a..6fcbe0165 100644
--- a/src/Main/renderer.cxx
+++ b/src/Main/renderer.cxx
@@ -68,11 +68,6 @@
 #include <Replay/replay.hxx>
 #include <GUI/new_gui.hxx>
 
-#ifdef FG_MPLAYER_AS
-#include <MultiPlayer/multiplaytxmgr.hxx>
-#include <MultiPlayer/multiplayrxmgr.hxx>
-#endif
-
 #include "splash.hxx"
 #include "renderer.hxx"
 #include "main.hxx"
@@ -127,18 +122,6 @@ ssgSimpleState *hud_and_panel;
 ssgSimpleState *menus;
 
 
-void fgRenderFrame() {
-#ifdef FG_MPLAYER_AS
-    // Update any multiplayer models
-    globals->get_multiplayer_rx_mgr()->Update();
-#endif
-    globals->get_renderer()->update(delta_time_sec);
-}
-
-void fgReshape(int width, int height) {
-    globals->get_renderer()->resize(width,height);
-}
-
 void
 FGRenderer::build_states( void ) {
     default_state = new ssgSimpleState;
@@ -354,7 +337,7 @@ FGRenderer::screendump( void ) {
 
 // Update all Visuals (redraws anything graphics related)
 void
-FGRenderer::update(double dt) {
+FGRenderer::update() {
     bool scenery_loaded = fgGetBool("sim/sceneryloaded") || fgGetBool("sim/sceneryloaded-override");
     bool draw_otw = fgGetBool("/sim/rendering/draw-otw");
     bool skyblend = fgGetBool("/sim/rendering/skyblend");
@@ -430,7 +413,7 @@ FGRenderer::update(double dt) {
         globals->get_scenery()->set_center( globals->get_scenery()->get_next_center() );
 
         // update view port
-        fgReshape( fgGetInt("/sim/startup/xsize"),
+        resize( fgGetInt("/sim/startup/xsize"),
                    fgGetInt("/sim/startup/ysize") );
 
         if ( fgGetBool("/sim/rendering/clouds3d") ) {
diff --git a/src/Main/renderer.hxx b/src/Main/renderer.hxx
index 79d01e23b..c8db96d5e 100644
--- a/src/Main/renderer.hxx
+++ b/src/Main/renderer.hxx
@@ -14,8 +14,6 @@ extern glPointParameterfProc glPointParameterfPtr;
 extern glPointParameterfvProc glPointParameterfvPtr;
 extern bool glPointParameterIsSupported;
 
-void fgRenderFrame();
-void fgReshape(int width, int height);
 
 class FGRenderer {
 
@@ -24,8 +22,8 @@ public:
     ~FGRenderer() {}
 
     void init();
-    void update(double dt);
-    void resize(int width, int height );
+    static void update();
+    static void resize(int width, int height );
 
     void screendump();
     void build_states();
diff --git a/src/Model/acmodel.hxx b/src/Model/acmodel.hxx
index ddafbaf34..a59bd954a 100644
--- a/src/Model/acmodel.hxx
+++ b/src/Model/acmodel.hxx
@@ -12,8 +12,6 @@
 
 #include <vector>
 
-#include <plib/ssg.h>
-
 SG_USING_STD(string);
 SG_USING_STD(vector);
 
diff --git a/src/MultiPlayer/mpplayer.hxx b/src/MultiPlayer/mpplayer.hxx
index 4876d1e47..c16d9f1b0 100644
--- a/src/MultiPlayer/mpplayer.hxx
+++ b/src/MultiPlayer/mpplayer.hxx
@@ -52,6 +52,7 @@ SG_USING_STD(string);
 // Number of seconds before a player is consider to be lost
 #define TIME_TO_LIVE 10
 
+
 class ssgEntity;
 class ssgTransform;
 
diff --git a/src/Scenery/hitlist.hxx b/src/Scenery/hitlist.hxx
index f79d1e9fe..3ba8f3ba9 100644
--- a/src/Scenery/hitlist.hxx
+++ b/src/Scenery/hitlist.hxx
@@ -16,6 +16,7 @@
 SG_USING_STD(vector);
 
 class ssgEntity;
+class ssgBranch;
 
 class FGHitRec {
 
diff --git a/src/Scenery/scenery.hxx b/src/Scenery/scenery.hxx
index f2e77ec97..5584f9456 100644
--- a/src/Scenery/scenery.hxx
+++ b/src/Scenery/scenery.hxx
@@ -29,6 +29,7 @@
 # error This library requires C++
 #endif                                   
 
+
 #include <plib/sg.h>
 
 #include <simgear/structure/subsystem_mgr.hxx>
@@ -38,6 +39,7 @@
 class ssgRoot;
 class ssgBranch;
 
+
 // Define a structure containing global scenery parameters
 class FGScenery : public SGSubsystem {
     // center of current scenery chunk
diff --git a/src/Scenery/tileentry.hxx b/src/Scenery/tileentry.hxx
index a979e677b..a442f7604 100644
--- a/src/Scenery/tileentry.hxx
+++ b/src/Scenery/tileentry.hxx
@@ -54,13 +54,13 @@ typedef vector < Point3D > point_list;
 typedef point_list::iterator point_list_iterator;
 typedef point_list::const_iterator const_point_list_iterator;
 
+
 class ssgLeaf;
 class ssgBranch;
 class ssgTransform;
 class ssgSelector;
 class ssgRangeSelector;
 class ssgVertexArray;
-
 class FGTileEntry;
 
 
diff --git a/src/Scenery/tilemgr.hxx b/src/Scenery/tilemgr.hxx
index 1d0426485..7c4a19105 100644
--- a/src/Scenery/tilemgr.hxx
+++ b/src/Scenery/tilemgr.hxx
@@ -35,8 +35,6 @@
 
 #include <queue>
 
-#include <plib/ssg.h>
-
 #include <simgear/bucket/newbucket.hxx>
 #if defined(ENABLE_THREADS) && ENABLE_THREADS
 #  include <simgear/threads/SGQueue.hxx>
@@ -56,6 +54,8 @@ SG_USING_STD( queue );
 
 
 // forward declaration
+class ssgBranch;
+class ssgEntity;
 class FGTileEntry;
 class FGDeferredModel;