paysages : Added skybox in 3d explorer.

git-svn-id: https://subversion.assembla.com/svn/thunderk/paysages@341 b1fd45b6-86a6-48da-8261-f70d1f35bdcc

ChangeLog

@@ -5,7 +5,7 @@
 * New texture model (perpendicular displacement and thickness).
 * Added clouds hardness to light.
 * Version management in saved files.
-* Added ground texture and sun location in 3D explorer.
+* Added ground texture and skybox in 3D explorer.
 * 3D explorer now takes advantage of multiple CPU cores.
 * Added sun halo control.
 

TODO

@@ -6,6 +6,7 @@ Technology Preview 2 :
 - Compute shadows only once for all textures at a same location.
    => Add an intermediary light status (two pass lighting).
 - Add layer sorting/naming.
+- Disable specular lighting in explorer (and everything camera dependent).
 - Add logarithmic sliders for some float values.
 - Save GUI config (views, render params).
 - Add an OSD ability on previews and use it for camera location and user landmarks.

gui_qt/baseexplorerchunk.cpp

@@ -47,7 +47,7 @@ bool BaseExplorerChunk::maintain()
             {
                 if (_texture_current_size <= 1 || i % 2 != 0 || j % 2 != 0)
                 {
-                    Color color = getTextureColor((double)i / (double)(new_texture_size + 1), (double)j / (double)(new_texture_size + 1));
+                    Color color = getTextureColor((double)i / (double)new_texture_size, 1.0 - (double)j / (double)new_texture_size);
                     new_image->setPixel(i, j, colorTo32BitBGRA(&color));
                 }
             }

gui_qt/explorerchunksky.cpp

@@ -0,0 +1,135 @@
+#include "explorerchunksky.h"
+
+#include <math.h>
+#include "baseexplorerchunk.h"
+#include "../lib_paysages/camera.h"
+
+ExplorerChunkSky::ExplorerChunkSky(Renderer* renderer, SkyDefinition* sky, double size, SkyboxOrientation orientation) : BaseExplorerChunk(renderer)
+{
+    _sky = sky;
+    _box_size = size;
+    _orientation = orientation;
+    
+    setMaxTextureSize(256);
+    maintain();
+}
+
+void ExplorerChunkSky::onRenderEvent(QGLWidget* widget)
+{
+    double size = _box_size;
+    Vector3 camera = renderer()->camera_location;
+
+    glBegin(GL_QUADS);
+    switch(_orientation)
+    {
+        case SKYBOX_NORTH:
+            glTexCoord2d(0.0, 0.0);
+            glVertex3d(camera.x - size, camera.y + size, camera.z - size);
+            glTexCoord2d(0.0, 1.0);
+            glVertex3d(camera.x - size, camera.y - size, camera.z - size);
+            glTexCoord2d(1.0, 1.0);
+            glVertex3d(camera.x + size, camera.y - size, camera.z - size);
+            glTexCoord2d(1.0, 0.0);
+            glVertex3d(camera.x + size, camera.y + size, camera.z - size);
+            break;
+        case SKYBOX_SOUTH:
+            glTexCoord2d(0.0, 0.0);
+            glVertex3d(camera.x + size, camera.y + size, camera.z + size);
+            glTexCoord2d(0.0, 1.0);
+            glVertex3d(camera.x + size, camera.y - size, camera.z + size);
+            glTexCoord2d(1.0, 1.0);
+            glVertex3d(camera.x - size, camera.y - size, camera.z + size);
+            glTexCoord2d(1.0, 0.0);
+            glVertex3d(camera.x - size, camera.y + size, camera.z + size);
+            break;
+        case SKYBOX_EAST:
+            glTexCoord2d(0.0, 0.0);
+            glVertex3d(camera.x + size, camera.y + size, camera.z - size);
+            glTexCoord2d(0.0, 1.0);
+            glVertex3d(camera.x + size, camera.y - size, camera.z - size);
+            glTexCoord2d(1.0, 1.0);
+            glVertex3d(camera.x + size, camera.y - size, camera.z + size);
+            glTexCoord2d(1.0, 0.0);
+            glVertex3d(camera.x + size, camera.y + size, camera.z + size);
+            break;
+        case SKYBOX_WEST:
+            glTexCoord2d(0.0, 0.0);
+            glVertex3d(camera.x - size, camera.y + size, camera.z + size);
+            glTexCoord2d(0.0, 1.0);
+            glVertex3d(camera.x - size, camera.y - size, camera.z + size);
+            glTexCoord2d(1.0, 1.0);
+            glVertex3d(camera.x - size, camera.y - size, camera.z - size);
+            glTexCoord2d(1.0, 0.0);
+            glVertex3d(camera.x - size, camera.y + size, camera.z - size);
+            break;
+        case SKYBOX_TOP:
+            glTexCoord2d(0.0, 0.0);
+            glVertex3d(camera.x - size, camera.y + size, camera.z + size);
+            glTexCoord2d(0.0, 1.0);
+            glVertex3d(camera.x - size, camera.y + size, camera.z - size);
+            glTexCoord2d(1.0, 1.0);
+            glVertex3d(camera.x + size, camera.y + size, camera.z - size);
+            glTexCoord2d(1.0, 0.0);
+            glVertex3d(camera.x + size, camera.y + size, camera.z + size);
+            break;
+        case SKYBOX_BOTTOM:
+            glTexCoord2d(0.0, 0.0);
+            glVertex3d(camera.x - size, camera.y - size, camera.z - size);
+            glTexCoord2d(0.0, 1.0);
+            glVertex3d(camera.x - size, camera.y - size, camera.z + size);
+            glTexCoord2d(1.0, 1.0);
+            glVertex3d(camera.x + size, camera.y - size, camera.z + size);
+            glTexCoord2d(1.0, 0.0);
+            glVertex3d(camera.x + size, camera.y - size, camera.z - size);
+            break;
+    }
+    glEnd();
+}
+
+double ExplorerChunkSky::getDisplayedSizeHint(CameraDefinition* camera)
+{
+    return 1000.0;
+}
+
+Color ExplorerChunkSky::getTextureColor(double x, double y)
+{
+    Vector3 location;
+    
+    x -= 0.5;
+    y -= 0.5;
+    
+    switch(_orientation)
+    {
+        case SKYBOX_NORTH:
+            location.x = x;
+            location.y = -y;
+            location.z = -0.5;
+            break;
+        case SKYBOX_SOUTH:
+            location.x = -x;
+            location.y = -y;
+            location.z = 0.5;
+            break;
+        case SKYBOX_EAST:
+            location.x = 0.5;
+            location.y = -y;
+            location.z = x;
+            break;
+        case SKYBOX_WEST:
+            location.x = -0.5;
+            location.y = -y;
+            location.z = -x;
+            break;
+        case SKYBOX_TOP:
+            location.x = x;
+            location.y = 0.5;
+            location.z = -y;
+            break;
+        case SKYBOX_BOTTOM:
+            location.x = x;
+            location.y = -0.5;
+            location.z = y;
+            break;
+    }
+    return skyGetColor(_sky, renderer(), VECTOR_ZERO, v3Normalize(location));
+}

gui_qt/explorerchunksky.h

@@ -0,0 +1,35 @@
+#ifndef _PAYSAGES_QT_EXPLORERCHUNKSKY_H_
+#define _PAYSAGES_QT_EXPLORERCHUNKSKY_H_
+
+#include "baseexplorerchunk.h"
+#include "../lib_paysages/renderer.h"
+#include "../lib_paysages/euclid.h"
+#include "../lib_paysages/sky.h"
+
+enum SkyboxOrientation
+{
+    SKYBOX_NORTH,
+    SKYBOX_SOUTH,
+    SKYBOX_WEST,
+    SKYBOX_EAST,
+    SKYBOX_TOP,
+    SKYBOX_BOTTOM
+};
+
+class ExplorerChunkSky:public BaseExplorerChunk
+{
+public:
+    ExplorerChunkSky(Renderer* renderer, SkyDefinition* sky, double size, SkyboxOrientation orientation);
+    
+    void onRenderEvent(QGLWidget* widget);
+    double getDisplayedSizeHint(CameraDefinition* camera);
+    Color getTextureColor(double x, double y);
+    
+private:
+    SkyDefinition* _sky;
+    SkyboxOrientation _orientation;
+    double _box_size;
+    
+};
+
+#endif

gui_qt/explorerchunkterrain.cpp

@@ -112,9 +112,9 @@ void ExplorerChunkTerrain::onRenderEvent(QGLWidget* widget)
         glBegin(GL_QUAD_STRIP);
         for (int i = 0; i <= _tessellation_max_size; i += tessellation_inc)
         {
-            glTexCoord2d(tsize * (double)i, 1.0 - tsize * (double)j);
+            glTexCoord2d(tsize * (double)i, tsize * (double)j);
             glVertex3d(_startx + _tessellation_step * (double)i, _tessellation[j * (_tessellation_max_size + 1) + i], _startz + _tessellation_step * (double)j);
-            glTexCoord2d(tsize * (double)i, 1.0 - tsize * (double)(j + tessellation_inc));
+            glTexCoord2d(tsize * (double)i, tsize * (double)(j + tessellation_inc));
             glVertex3d(_startx + _tessellation_step * (double)i, _tessellation[(j + tessellation_inc) * (_tessellation_max_size + 1) + i], _startz + _tessellation_step * (double)(j + tessellation_inc));
         }
         glEnd();

gui_qt/widgetexplorer.cpp

@@ -9,6 +9,8 @@
 #include "../lib_paysages/scenery.h"
 #include "../lib_paysages/euclid.h"
 #include "explorerchunkterrain.h"
+#include "explorerchunksky.h"
+#include "tools.h"
 
 class ChunkMaintenanceThread:public QThread
 {
@@ -99,6 +101,7 @@ WidgetExplorer::WidgetExplorer(QWidget *parent, CameraDefinition* camera):
     
     _updated = false;
 
+    // Add terrain
     int chunks = 20;
     double size = 200.0;
     double chunksize = size / (double)chunks;
@@ -112,6 +115,14 @@ WidgetExplorer::WidgetExplorer(QWidget *parent, CameraDefinition* camera):
             _updateQueue.append(chunk);
         }
     }
+    
+    // Add skybox
+    for (int orientation = 0; orientation < 6; orientation++)
+    {
+        ExplorerChunkSky* chunk = new ExplorerChunkSky(&_renderer, &_sky, 500.0, (SkyboxOrientation)orientation);
+        _chunks.append(chunk);
+        _updateQueue.append(chunk);
+    }
 
     startThreads();
     startTimer(500);
@@ -400,6 +411,7 @@ void WidgetExplorer::resizeGL(int w, int h)
 
 void WidgetExplorer::paintGL()
 {
+    GLenum error_code;
     QTime start_time;
     double frame_time;
     
@@ -409,6 +421,7 @@ void WidgetExplorer::paintGL()
     }
     
     cameraValidateDefinition(&_current_camera, 1);
+    _renderer.camera_location = _current_camera.location;
     
     start_time = QTime::currentTime();
     
@@ -421,20 +434,7 @@ void WidgetExplorer::paintGL()
     glClearColor(zenith_color.r, zenith_color.g, zenith_color.b, 0.0);
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
-    // Render sun
-    Vector3 sun_location = v3Add(_current_camera.location, v3Scale(skyGetSunDirection(&_sky), 500.0));
-    Color sun_color = skyGetSunColor(&_sky);
-    glDisable(GL_TEXTURE);
-    glDisable(GL_TEXTURE_2D);
-    glColor3f(sun_color.r, sun_color.g, sun_color.b);
-    glPointSize(15.0 * _sky.sun_radius / 0.02);
-    glEnable(GL_POINT_SMOOTH);
-    glBegin(GL_POINTS);
-    glVertex3f(sun_location.x, sun_location.y, sun_location.z);
-    glEnd();
-
     // Render water
-    glDisable(GL_TEXTURE);
     glDisable(GL_TEXTURE_2D);
     glColor3f(_water.material.base.r, _water.material.base.g, _water.material.base.b);
     glBegin(GL_QUADS);
@@ -444,8 +444,7 @@ void WidgetExplorer::paintGL()
     glVertex3f(_current_camera.location.x + 500.0, _water.height, _current_camera.location.z - 500.0);
     glEnd();
 
-    // Render terrain chunks
+    // Render chunks
-    glEnable(GL_TEXTURE);
     glEnable(GL_TEXTURE_2D);
     for (int i = 0; i < _chunks.count(); i++)
     {
@@ -466,4 +465,9 @@ void WidgetExplorer::paintGL()
     {
         _quality++;
     }
+    
+    while ((error_code = glGetError()) != GL_NO_ERROR)
+    {
+        logDebug(QString("[OpenGL] ERROR : ") + (const char*)gluErrorString(error_code));
+    }
 }

i18n/paysages_fr.ts

@@ -121,6 +121,46 @@ Right click on a point to delete it.</source>
         <translation type="unfinished"></translation>
     </message>
 </context>
+<context>
+    <name>DialogExplorer</name>
+    <message>
+        <location filename="../gui_qt/dialogexplorer.cpp" line="14"/>
+        <source>Paysages 3D - Explore</source>
+        <translation type="unfinished">Paysages 3D - Exploration</translation>
+    </message>
+    <message>
+        <location filename="../gui_qt/dialogexplorer.cpp" line="24"/>
+        <source>COMMANDS
+
+Left click : Look around
+Right click : Pan (adjust framing)
+Wheel : Move forward/backward
+Hold SHIFT : Faster
+Hold CTRL : Slower</source>
+        <translation type="unfinished">COMMANDES
+
+Clic gauche : Regarder autour
+Clic droit : Déplacer le cadrage
+Molette : Avancer/reculer
+Maintenir Maj : Plus rapide
+Maintenir Ctrl : Plus lent</translation>
+    </message>
+    <message>
+        <location filename="../gui_qt/dialogexplorer.cpp" line="26"/>
+        <source>Reset camera</source>
+        <translation type="unfinished">Revenir au point de vue initial</translation>
+    </message>
+    <message>
+        <location filename="../gui_qt/dialogexplorer.cpp" line="32"/>
+        <source>Validate as render camera</source>
+        <translation type="unfinished">Choisir comme caméra de rendu</translation>
+    </message>
+    <message>
+        <location filename="../gui_qt/dialogexplorer.cpp" line="37"/>
+        <source>Close</source>
+        <translation type="unfinished">Fermer</translation>
+    </message>
+</context>
 <context>
     <name>DialogMaterial</name>
     <message>
@@ -218,12 +258,10 @@ Right click on a point to delete it.</source>
 <context>
     <name>DialogWanderer</name>
     <message>
-        <location filename="../gui_qt/dialogexplorer.cpp" line="14"/>
         <source>Paysages 3D - Explore</source>
-        <translation>Paysages 3D - Exploration</translation>
+        <translation type="obsolete">Paysages 3D - Exploration</translation>
     </message>
     <message>
-        <location filename="../gui_qt/dialogexplorer.cpp" line="24"/>
         <source>COMMANDS
 
 Left click : Look around
@@ -231,7 +269,7 @@ Right click : Pan (adjust framing)
 Wheel : Move forward/backward
 Hold SHIFT : Faster
 Hold CTRL : Slower</source>
-        <translation>COMMANDES
+        <translation type="obsolete">COMMANDES
 
 Clic gauche : Regarder autour
 Clic droit : Déplacer le cadrage
@@ -256,19 +294,16 @@ Maintenir MAJ : Plus lent
 Maintenir Ctrl : Plus rapide</translation>
     </message>
     <message>
-        <location filename="../gui_qt/dialogexplorer.cpp" line="26"/>
         <source>Reset camera</source>
-        <translation>Revenir au point de vue initial</translation>
+        <translation type="obsolete">Revenir au point de vue initial</translation>
     </message>
     <message>
-        <location filename="../gui_qt/dialogexplorer.cpp" line="32"/>
         <source>Validate as render camera</source>
-        <translation>Choisir comme caméra de rendu</translation>
+        <translation type="obsolete">Choisir comme caméra de rendu</translation>
     </message>
     <message>
-        <location filename="../gui_qt/dialogexplorer.cpp" line="37"/>
         <source>Close</source>
-        <translation>Fermer</translation>
+        <translation type="obsolete">Fermer</translation>
     </message>
 </context>
 <context>