int main(int, char **argv)
{
// Initialize Inventor. This returns a main window to use.
// If unsuccessful, exit.
HWND myWindow = SoWin::init("A red cone."); // pass the app name
if (myWindow == NULL) exit(1);
// Make a scene containing a red cone
SoSeparator *root = new SoSeparator;
SoPerspectiveCamera *myCamera = new SoPerspectiveCamera;
SoMaterial *myMaterial = new SoMaterial;
root->ref();
root->addChild(myCamera);
root->addChild(new SoDirectionalLight);
myMaterial->diffuseColor.setValue(1.0, 1.0, 0.0); // Red
root->addChild(myMaterial);
root->addChild(new SoCone);
// Create a renderArea in which to see our scene graph.
// The render area will appear within the main window.
SoWinExaminerViewer *myRenderArea = new SoWinExaminerViewer(myWindow);
// Make myCamera see everything.
myCamera->viewAll(root, myRenderArea->getViewportRegion());
// Put our scene in myRenderArea, change the title
myRenderArea->setSceneGraph(root);
myRenderArea->setTitle("A red cone");
myRenderArea->show();
SoWin::show(myWindow); // Display main window
SoWin::mainLoop(); // Main Inventor event loop
delete myRenderArea;
root->unref();
return 0;
}
int main(int, char **argv)
{
// Initialize Inventor. This returns a main window to use.
// If unsuccessful, exit.
HWND myWindow = SoWin::init("Water molecule"); // pass the app name
if (myWindow == NULL) exit(1);
// Make a scene containing a red cone
SoGroup *waterMolecule = new SoGroup; // water molecule
SoPerspectiveCamera *myCamera = new SoPerspectiveCamera;
SoGroup *oxygen = new SoGroup; // oxygen atom
SoMaterial *redPlastic = new SoMaterial;
SoSphere *sphere1 = new SoSphere;
SoGroup *hydrogen1 = new SoGroup; // hydrogen atoms
SoGroup *hydrogen2 = new SoGroup;
SoTransform *hydrogenXform1 = new SoTransform;
SoTransform *hydrogenXform2 = new SoTransform;
SoMaterial *whitePlastic = new SoMaterial;
SoSphere *sphere2 = new SoSphere;
SoSphere *sphere3 = new SoSphere;
// Set all field values for the oxygen atom
redPlastic->ambientColor.setValue(1.0, 0.0, 0.0);
redPlastic->diffuseColor.setValue(1.0, 0.0, 0.0);
redPlastic->specularColor.setValue(0.5, 0.5, 0.5);
redPlastic->shininess = 0.5;
// Set all field values for the hydrogen atoms
hydrogenXform1->scaleFactor.setValue(0.75, 0.75, 0.75);
hydrogenXform1->translation.setValue(0.1, 1.2, 1.0);
hydrogenXform2->translation.setValue(0.0, -3.2, 0.0);
whitePlastic->ambientColor.setValue(1.0, 1.0, 1.0);
whitePlastic->diffuseColor.setValue(1.0, 1.0, 1.0);
whitePlastic->specularColor.setValue(0.5, 0.5, 0.5);
whitePlastic->shininess = 0.5;
// Create a hierarchy
waterMolecule->ref();
waterMolecule->addChild(oxygen);
waterMolecule->addChild(hydrogen1);
waterMolecule->addChild(hydrogen2);
oxygen->addChild(redPlastic);
oxygen->addChild(sphere1);
hydrogen1->addChild(hydrogenXform1);
hydrogen1->addChild(whitePlastic);
hydrogen1->addChild(sphere2);
hydrogen2->addChild(hydrogenXform2);
hydrogen2->addChild(sphere3);
SoWinExaminerViewer *myRenderArea = new SoWinExaminerViewer(myWindow);
// Make myCamera see everything.
myCamera->viewAll(waterMolecule, myRenderArea->getViewportRegion());
// Put our scene in myRenderArea, change the title
myRenderArea->setSceneGraph(waterMolecule);
myRenderArea->setTitle("Water molecule");
myRenderArea->show();
SoWin::show(myWindow); // Display main window
SoWin::mainLoop(); // Main Inventor event loop
delete myRenderArea;
waterMolecule->unref();
return 0;
}
int
WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine,
int nCmdShow)
{
#else // UNIX
int
main(int argc, char ** argv)
{
#endif
// initialize Coin and glut libraries
SoDB::init();
#ifdef _WIN32
int argc = 1;
char * argv[] = { "glutiv.exe", (char *) NULL };
glutInit(&argc, argv);
#else
glutInit(&argc, argv);
#endif
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
SoSeparator * root;
root = new SoSeparator;
root->ref();
SoPerspectiveCamera * camera = new SoPerspectiveCamera;
root->addChild(camera);
root->addChild(new SoDirectionalLight);
root->addChild(createScenegraph());
scenemanager = new SoSceneManager;
scenemanager->setRenderCallback(redraw_cb, (void *)1);
scenemanager->setBackgroundColor(SbColor(0.2f, 0.2f, 0.2f));
scenemanager->activate();
camera->viewAll(root, scenemanager->getViewportRegion());
scenemanager->setSceneGraph(root);
glutInitWindowSize(512, 400);
SbString title("Offscreen Rendering");
glutwin = glutCreateWindow(title.getString());
glutDisplayFunc(expose_cb);
glutReshapeFunc(reshape_cb);
// start main loop processing (with an idle callback)
glutIdleFunc(idle_cb);
glutMainLoop();
root->unref();
delete scenemanager;
return 0;
}
int
main(int , char **argv)
{
// Initialize Inventor. This returns a main window to use.
// If unsuccessful, exit.
QWidget* myWindow = SoQt::init(argv[0]); // pass the app name
if (myWindow == NULL) exit(1);
// Make a scene containing a red cone
SoSeparator *root = new SoSeparator;
SoPerspectiveCamera *myCamera = new SoPerspectiveCamera;
SoMaterial *myMaterial = new SoMaterial;
root->ref();
root->addChild(myCamera);
root->addChild(new SoDirectionalLight);
myMaterial->diffuseColor.setValue(1.0, 0.0, 0.0); // Red
root->addChild(myMaterial);
// GsTL_SoNode::initClass();
GsTL_SoNode* obj = new GsTL_SoNode;
obj->addChild(new SoCone);
root->addChild( obj );
obj->visible = true;
// Create a renderArea in which to see our scene graph.
// The render area will appear within the main window.
SoQtRenderArea *myRenderArea = new SoQtRenderArea(myWindow);
// Make myCamera see everything.
myCamera->viewAll(root, myRenderArea->getViewportRegion());
// Put our scene in myRenderArea, change the title
myRenderArea->setSceneGraph(root);
myRenderArea->setTitle("Hello Cone");
myRenderArea->show();
SoQt::show(myWindow); // Display main window
SoQt::mainLoop(); // Main Inventor event loop
}
SoSeparator *
createScenegraph(void)
{
SoSeparator * texroot = new SoSeparator;
texroot->ref();
SoInput in;
in.setBuffer(red_cone_iv, strlen(red_cone_iv));
SoSeparator * result = SoDB::readAll(&in);
if (result == NULL) { exit(1); }
SoPerspectiveCamera *myCamera = new SoPerspectiveCamera;
SoRotationXYZ *rot = new SoRotationXYZ;
rot->axis = SoRotationXYZ::X;
rot->angle = M_PI_2;
myCamera->position.setValue(SbVec3f(-0.2, -0.2, 2.0));
myCamera->scaleHeight(0.4);
texroot->addChild(myCamera);
texroot->addChild(new SoDirectionalLight);
texroot->addChild(rot);
texroot->addChild(result);
myCamera->viewAll(texroot, SbViewportRegion());
// Generate the texture map
SoTexture2 *texture = new SoTexture2;
texture->ref();
if (generateTextureMap(texroot, texture, 128, 128))
printf ("Successfully generated texture map\n");
else
printf ("Could not generate texture map\n");
texroot->unref();
// Make a scene with a cube and apply the texture to it
SoSeparator * root = new SoSeparator;
root->addChild(texture);
root->addChild(new SoCube);
return root;
}
static SoSeparator *
setUpGraph(const SbViewportRegion &vpReg,
SoInput *sceneInput,
Options &options)
//
//////////////////////////////////////////////////////////////
{
// Create a root separator to hold everything. Turn
// caching off, since the transformation will blow
// it anyway.
SoSeparator *root = new SoSeparator;
root->ref();
root->renderCaching = SoSeparator::OFF;
// Add a camera to view the scene
SoPerspectiveCamera *camera = new SoPerspectiveCamera;
root->addChild(camera);
// Add a transform node to spin the scene
SoTransform *sceneTransform = new SoTransform;
sceneTransform->setName(SCENE_XFORM_NAME);
root->addChild(sceneTransform);
// Read and add input scene graph
SoSeparator *inputRoot = SoDB::readAll(sceneInput);
if (inputRoot == NULL) {
fprintf(stderr, "Cannot read scene graph\n");
root->unref();
exit(1);
}
root->addChild(inputRoot);
SoPath *path;
SoGroup *parent, *group;
SoSearchAction act;
// expand out all File nodes and replace them with groups
// containing the children
SoFile *fileNode;
act.setType(SoFile::getClassTypeId());
act.setInterest(SoSearchAction::FIRST);
act.apply(inputRoot);
while ((path = act.getPath()) != NULL) {
fileNode = (SoFile *) path->getTail();
path->pop();
parent = (SoGroup *) path->getTail();
group = fileNode->copyChildren();
if (group) {
parent->replaceChild(fileNode, group);
// apply action again and continue
act.apply(inputRoot);
}
}
// expand out all node kits and replace them with groups
// containing the children
SoBaseKit *kitNode;
SoChildList *childList;
act.setType(SoBaseKit::getClassTypeId());
act.setInterest(SoSearchAction::FIRST);
act.apply(inputRoot);
while ((path = act.getPath()) != NULL) {
kitNode = (SoBaseKit *) path->getTail();
path->pop();
parent = (SoGroup *) path->getTail();
group = new SoGroup;
childList = kitNode->getChildren();
for (int i=0; i<childList->getLength(); i++)
group->addChild((*childList)[i]);
parent->replaceChild(kitNode, group);
act.apply(inputRoot);
}
// check to see if there are any lights
// if no lights, add a directional light to the scene
act.setType(SoLight::getClassTypeId());
act.setInterest(SoSearchAction::FIRST);
act.apply(inputRoot);
if (act.getPath() == NULL) { // no lights
SoDirectionalLight *light = new SoDirectionalLight;
root->insertChild(light, 1);
}
else
options.hasLights = TRUE;
// check to see if there are any texures in the scene
act.setType(SoTexture2::getClassTypeId());
act.setInterest(SoSearchAction::FIRST);
act.apply(inputRoot);
if (act.getPath() != NULL)
options.hasTextures = TRUE;
camera->viewAll(root, vpReg);
// print out information about the scene graph
int32_t numTris, numLines, numPoints, numNodes;
countPrimitives( inputRoot, numTris, numLines, numPoints, numNodes );
printf("Number of nodes in scene graph: %d\n", numNodes );
printf("Number of triangles in scene graph: %d\n", numTris );
printf("Number of lines in scene graph: %d\n", numLines );
printf("Number of points in scene graph: %d\n\n", numPoints );
// Make the center of rotation the center of
// the scene
SoGetBoundingBoxAction bba(vpReg);
bba.apply(root);
sceneTransform->center = bba.getBoundingBox().getCenter();
return root;
}
int
main(int argc, char ** argv)
#endif
{
// initialize Coin and glut libraries
SoDB::init();
SoNodeKit::init();
SoInteraction::init();
#ifdef _WIN32
int argc = 1;
char * argv[] = { "glutiv.exe", (char *) NULL };
glutInit(&argc, argv);
#else
glutInit(&argc, argv);
#endif
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
// Note: _don't_ use SoGroup, as TGS' Inventor has a bug where
// lightsource contribution will get accumulated over runs.
SoSeparator * root[SCENEWINDOWS];
for (unsigned int i=0; i < SCENEWINDOWS; i++) {
// set up individual parts of scenegraph
root[i] = new SoSeparator;
root[i]->ref();
SoPerspectiveCamera * camera = new SoPerspectiveCamera;
root[i]->addChild(camera);
root[i]->addChild(new SoDirectionalLight);
SoDrawStyle * drawstyle = new SoDrawStyle;
drawstyle->style.setValue(i % 3);
root[i]->addChild(drawstyle);
root[i]->addChild(commongraph());
// initialize scenemanager instance
scenemanager[i] = new SoSceneManager;
scenemanager[i]->setRenderCallback(redraw_cb, (void *)i);
scenemanager[i]->setBackgroundColor(SbColor(0.2f, 0.2f, i * 0.2f));
scenemanager[i]->activate();
camera->viewAll(root[i], scenemanager[i]->getViewportRegion());
scenemanager[i]->setSceneGraph(root[i]);
// glut window initialization
glutInitWindowSize(512, 400);
SbString title("window ");
title += (char)(i + 0x30);
glutwin[i] = glutCreateWindow(title.getString());
glutDisplayFunc(expose_cb);
glutReshapeFunc(reshape_cb);
}
SoDB::setRealTimeInterval(1/120.0);
// start main loop processing (with an idle callback)
glutIdleFunc(idle_cb);
glutMainLoop();
// clean up Coin resource use
for (int j=0; j < SCENEWINDOWS; j++) {
root[j]->unref();
delete scenemanager[j];
}
return 0;
}
int main(int argc, char * argv[])
{
/* Default values of program arguments. */
char * heightmap_name = NULL;
int triangle_count = 1000;
int tile_size = 33;
int pixel_error = 6;
int edgeSize = 4096;
int xOffset = 0;
int yOffset = 0;
bool drawWater = false;
SbBool is_full_screen = FALSE;
SbBool is_frustrum_culling = TRUE;
/* Get program arguments. */
int command = 0;
while ((command = getopt(argc, argv, "h:x:y:s:S:a:e:r:g:fcW")) != -1)
{
switch (command)
{
/* Heightmap. */
case 'h':
{
heightmap_name = optarg;
}
break;
/* Algorithm. */
case 'a':
{
if (!strcmp(optarg, "roam"))
{
algorithm = ID_ALG_ROAM;
}
else if (!strcmp(optarg, "geomipmapping"))
{
algorithm = ID_ALG_GEO_MIPMAP;
}
else if (!strcmp(optarg, "chunkedlod"))
{
algorithm = ID_ALG_CHUNKED_LOD;
}
else if (!strcmp(optarg, "brutalforce"))
{
algorithm = ID_ALG_BRUAL_FORCE;
}
}
break;
/* Size of the plot map, in data points a long one edge (map is a square). */
case 's':
{
sscanf(optarg, "%d", &edgeSize);
}
/* Scaling factor. */
case 'S':
{
sscanf(optarg, "%d", &scaleFactor);
}
break;
/* X offset in data points. */
case 'x': {
sscanf(optarg, "%d", &xOffset);
}
break;
/* Y offset in data points. */
case 'y': {
sscanf(optarg, "%d", &yOffset);
}
break;
/* Pixel error of rendering. */
case 'e':
{
sscanf(optarg, "%d", &pixel_error);
}
break;
/* Number of triangles in triangulation. */
case 'r':
{
sscanf(optarg, "%d", &triangle_count);
}
break;
/* Tile side size. */
case 'g':
{
sscanf(optarg, "%d", &tile_size);
}
break;
/* Fullscreen. */
case 'f':
{
is_full_screen = TRUE;
}
break;
/* Frustrum culling. */
case 'c':
{
is_frustrum_culling = FALSE;
}
break;
/* Draw water line. */
case 'W':
{
drawWater = true;
}
break;
case '?':
{
std::cout << "Unknown option!" << std::endl;
help();
exit(1);
}
break;
}
}
/* Check obligatory arguments. */
if (heightmap_name == NULL)
{
std::cout << "Input height map wasn't specified!" << std::endl;
help();
exit(1);
}
/* Load heightmap. */
int height = 0;
// SoTerrain only seems to handle size which
// are multiples of 1024. The +1 maybe due
// to some sloppiness some later in the code
// (i.e. "<" vs "<=" or something).
int width = edgeSize +1; // 1024 + 1;// 1024 * 4 + 1;
height = width;
PR_INIT_PROFILER();
/* Set environment variables. */
//putenv("IV_SEPARATOR_MAX_CACHES=0");
putenv((char*)"COIN_SHOW_FPS_COUNTER=1");
//putenv("COIN_AUTO_CACHING=0");
/* Create window. */
QWidget * window;
if ((window = SoQt::init(argc, argv, "SoTerrain Test Application")) == NULL)
{
exit(1);
}
/* Initialization of custom Inventor classes. */
SoSimpleROAMTerrain::initClass();
SoSimpleGeoMipmapTerrain::initClass();
SoSimpleChunkedLoDTerrain::initClass();
SoProfileGroup::initClass();
/* Create scene graph. */
SoProfileGroup *root = new SoProfileGroup();
SoEventCallback *style_callback = new SoEventCallback();
SoPerspectiveCamera *camera = new SoPerspectiveCamera();
SoDrawStyle *style = new SoDrawStyle();
SoDirectionalLight *light = new SoDirectionalLight();
SoSeparator *separator = new SoSeparator();
SoSeparator *terrainSeparator = new SoSeparator();
SoSeparator *markers = new SoSeparator();
// not sure turning off Culling here is having any effect.
terrainSeparator->pickCulling.setValue(SoSeparator::OFF);
terrainSeparator->renderCulling.setValue(SoSeparator::OFF);
SoEventCallback *terrain_callback = new SoEventCallback();
/* Use the TerrainBuilder class to generating the various components. */
TerrainBuilder terrainBuilder;
terrainBuilder.setHeight(height);
terrainBuilder.setWidth(width);
terrainBuilder.initialize();
terrainBuilder.setScalingFactor(scaleFactor);
terrainBuilder.setYOffset(yOffset);
terrainBuilder.setXOffset(xOffset);
terrainBuilder.loadXYZFile(heightmap_name, 4801 * 4801);
SoTexture2 *texture = terrainBuilder.getTexture();
SoTextureCoordinate2 *texture_coords = terrainBuilder.getTextureCoordinates();
SoCoordinate3 *coords = terrainBuilder.getMapCoordinates();
SoNormal *normals = terrainBuilder.getNormals();
SoNormalBinding *normal_binding = new SoNormalBinding();
ref_long = terrainBuilder.getRefLong();
ref_lat = terrainBuilder.getRefLat();
style_callback->addEventCallback(SoKeyboardEvent::getClassTypeId(),
styleCallback, style);
light->direction.setValue(-0.5f, 0.5f, -1.0f);
normal_binding->value.setValue(SoNormalBinding::PER_VERTEX_INDEXED);
// Create the push pin marker.
marker_lat = 37.753;
marker_long = -122.440;
SoResetTransform *resetForTerrain = new SoResetTransform();
MarkerPin *marker = new MarkerPin();
marker->setScalingFactor(scaleFactor);
marker->setReferencePosition(ref_lat, ref_long);
marker->setLabel("San Francisco");
marker->setLocation(marker_lat, marker_long, 0.0);
SoEventCallback * marker_callback = new SoEventCallback();
marker_callback->addEventCallback(
SoKeyboardEvent::getClassTypeId(),
markerCallback,
marker);
vesselMarker = new MarkerPin();
vesselMarker->setScalingFactor(scaleFactor);
vesselMarker->setReferencePosition(ref_lat, ref_long);
vesselMarker->setLabel("Farralon");
vesselMarker->setLocation(37.7, -123.0, 0.0);
/* Connect scene graph nodes. */
root->ref();
root->addChild(style);
root->addChild(separator);
separator->addChild(terrain_callback);
separator->addChild(style_callback);
separator->addChild(marker_callback);
separator->addChild(camera);
separator->addChild(light);
separator->addChild(terrainSeparator);
terrainSeparator->addChild(resetForTerrain);
terrainSeparator->addChild(texture);
terrainSeparator->addChild(texture_coords);
terrainSeparator->addChild(coords);
terrainSeparator->addChild(normals);
terrainSeparator->addChild(normal_binding);
separator->addChild(markers);
separator->addChild(marker->getSoMarker());
separator->addChild(vesselMarker->getSoMarker());
// Water drawing has performance issues.
if (drawWater) {
separator->addChild(terrainBuilder.getWater());
}
switch (algorithm)
{
case ID_ALG_ROAM:
{
SoSimpleROAMTerrain * terrain = new SoSimpleROAMTerrain();
terrain->mapSize.setValue(width);
terrain->pixelError.setValue(pixel_error);
terrain->triangleCount.setValue(triangle_count);
terrain->frustrumCulling.setValue(is_frustrum_culling);
terrain_callback->addEventCallback(SoKeyboardEvent::getClassTypeId(),
terrainCallback, terrain);
terrainSeparator->addChild(terrain);
}
break;
case ID_ALG_GEO_MIPMAP:
{
SoSimpleGeoMipmapTerrain * terrain = new SoSimpleGeoMipmapTerrain();
terrain->mapSize.setValue(width);
terrain->tileSize.setValue(tile_size);
terrain->pixelError.setValue(pixel_error);
terrain_callback->addEventCallback(SoKeyboardEvent::getClassTypeId(),
terrainCallback, terrain);
terrainSeparator->addChild(terrain);
}
break;
case ID_ALG_CHUNKED_LOD:
{
SoSimpleChunkedLoDTerrain * terrain = new SoSimpleChunkedLoDTerrain();
terrain->mapSize.setValue(width);
terrain->tileSize.setValue(tile_size);
terrain->pixelError.setValue(pixel_error);
terrain_callback->addEventCallback(SoKeyboardEvent::getClassTypeId(),
terrainCallback, terrain);
terrainSeparator->addChild(terrain);
}
break;
case ID_ALG_BRUAL_FORCE:
{
SoIndexedTriangleStripSet * terrain = new SoIndexedTriangleStripSet();
/* Create terrain heightmap vertices indices. */
terrain->coordIndex.setNum((height - 1) * ((2 * width) + 1));
int * indices = terrain->coordIndex.startEditing();
int I = 0;
for (int Y = 0; Y < (height - 1); Y++)
{
for (int X = 0; X < width; X++)
{
indices[I++] = (Y * width) + X;
indices[I++] = ((Y + 1) * width) + X;
}
indices[I++] = -1;
}
terrain->coordIndex.finishEditing();
terrainSeparator->addChild(terrain);
}
break;
}
// terrainSeparator->addChild(terrainBuilder.getWater());
/* Setup camera and render area. */
SoQtFreeViewer * render_area = new SoQtFreeViewer(window);
SoSceneManager * scene_manager = new SoSceneManager();
render_area->setHeadlight(TRUE /*FALSE*/);
render_area->setSceneManager(scene_manager);
scene_manager->setRenderCallback(renderCallback, render_area);
scene_manager->activate();
camera->viewAll(root, render_area->getViewportRegion());
camera->nearDistance.setValue(0.01f);
render_area->setSceneGraph(root);
render_area->setTitle("Terrain Viewer Application");
render_area->setSize(SbVec2s(640, 480));
render_area->show();
render_area->setFullScreen(is_full_screen);
camera->position.setValue(0 , 0, 1);
// Use a SoIdleSensor to update marker position, this is because
// we can't add new markers when the tree is still being traversed
// (only when idle).
SoIdleSensor * positionUpdater = new SoIdleSensor();
positionUpdater->setFunction(updatePositionCallback);
positionUpdater->setData(markers);
// Use a SoTimeSensor to periodically schedule
// the SoIdleSensor to update marker positions.
SoTimerSensor * timerSensor = new SoTimerSensor(timerSensorCallback, root);
timerSensor->setInterval(0.2f);
timerSensor->setData(positionUpdater);
timerSensor->schedule();
/* Run application. */
SoQt::show(window);
SoQt::mainLoop();
SoQt::done();
// PR_PRINT_RESULTS(profile_name);
/* Free memory. */
root->unref();
delete positionUpdater;
delete render_area;
return EXIT_SUCCESS;
}