bool CarGraphics::LoadCameras(
const PTree & cfg,
const float cambounce,
std::ostream & error_output)
{
const PTree * cfg_cams;
if (!cfg.get("camera", cfg_cams))
{
return false;
}
if (!cfg_cams->size())
{
error_output << "No cameras defined." << std::endl;
return false;
}
cameras.reserve(cfg_cams->size());
for (PTree::const_iterator i = cfg_cams->begin(); i != cfg_cams->end(); ++i)
{
Camera * cam = LoadCamera(i->second, cambounce, error_output);
if (!cam)
{
ClearCameras();
return false;
}
cameras.push_back(cam);
}
return true;
}
void XMLReader::LoadSceneFromFile(QFile &file, const QStringRef &local_path, Scene &scene, Integrator &integrator)
{
if(file.open(QIODevice::ReadOnly))
{
QXmlStreamReader xml_reader;
xml_reader.setDevice(&file);
QMap<QString, QList<Geometry*>> material_to_geometry_map;
while(!xml_reader.isEndDocument())
{
xml_reader.readNext();
if(xml_reader.isStartElement())
{
//Get the tag name
QString tag(xml_reader.name().toString());
if(QString::compare(tag, QString("camera")) == 0)
{
scene.SetCamera(LoadCamera(xml_reader));
}
else if(QString::compare(tag, QString("geometry")) == 0)
{
Geometry* geometry = LoadGeometry(xml_reader, material_to_geometry_map, local_path);
if(geometry == NULL)
{
return;
}
scene.objects.append(geometry);
}
else if(QString::compare(tag, QString("material")) == 0)
{
Material* material = LoadMaterial(xml_reader, local_path);
if(material == NULL)
{
return;
}
scene.materials.append(material);
}
else if(QString::compare(tag, QString("integrator")) == 0)
{
integrator = LoadIntegrator(xml_reader);
}
else if(QString::compare(tag, QString("pixelSampler"), Qt::CaseInsensitive) == 0)
{
PixelSampler* sampler = LoadPixelSampler(xml_reader);
if(sampler == NULL)
{
std::cout << "Did not properly load a pixel sampler!" << std::endl;
return;
}
if(scene.pixel_sampler != NULL)
{
delete scene.pixel_sampler;
}
scene.pixel_sampler = sampler;
}
}
}
//Associate the materials in the XML file with the geometries that use those materials.
for(int i = 0; i < scene.materials.size(); i++)
{
QList<Geometry*> l = material_to_geometry_map.value(scene.materials[i]->name);
for(int j = 0; j < l.size(); j++)
{
l[j]->SetMaterial(scene.materials[i]);
}
}
//Copy emissive geometry from the list of objects to the list of lights
QList<Geometry*> to_lights;
for(Geometry *g : scene.objects)
{
g->create();
if(g->material->emissive)
{
to_lights.append(g);
}
}
for(Geometry *g : to_lights)
{
scene.lights.append(g);
}
file.close();
}
}
bool CAR::LoadGraphics(
const PTree & cfg,
const std::string & partspath,
const std::string & carpath,
const std::string & carname,
const std::string & carpaint,
const MATHVECTOR <float, 3> & carcolor,
const int anisotropy,
const float camerabounce,
const bool damage,
const bool debugmode,
ContentManager & content,
std::ostream & info_output,
std::ostream & error_output)
{
//write_inf(cfg, std::cerr);
cartype = carname;
LoadDrawable loadDrawable(carpath, anisotropy, content, models, error_output);
// load body first
const PTree * cfg_body;
std::string meshname;
std::vector<std::string> texname;
if (!cfg.get("body", cfg_body, error_output))
{
error_output << "there is a problem with the .car file" << std::endl;
return false;
}
if (!cfg_body->get("mesh", meshname, error_output)) return false;
if (!cfg_body->get("texture", texname, error_output)) return false;
if (carpaint != "default") texname[0] = carpaint;
if (!loadDrawable(meshname, texname, *cfg_body, topnode, &bodynode)) return false;
// load wheels
const PTree * cfg_wheel;
if (!cfg.get("wheel", cfg_wheel, error_output)) return false;
for (PTree::const_iterator i = cfg_wheel->begin(); i != cfg_wheel->end(); ++i)
{
if (!LoadWheel(i->second, loadDrawable, topnode, error_output))
{
error_output << "Failed to load wheels." << std::endl;
return false;
}
}
// load drawables
LoadBody loadBody(topnode, bodynode, loadDrawable);
for (PTree::const_iterator i = cfg.begin(); i != cfg.end(); ++i)
{
if (i->first != "body" &&
i->first != "steering" &&
i->first != "light-brake" &&
i->first != "light-reverse")
{
loadBody(i->second);
}
}
// load steering wheel
const PTree * cfg_steer;
if (cfg.get("steering", cfg_steer))
{
SCENENODE & bodynoderef = topnode.GetNode(bodynode);
if (!loadDrawable(*cfg_steer, bodynoderef, &steernode, 0))
{
error_output << "Failed to load steering wheel." << std::endl;
return false;
}
cfg_steer->get("max-angle", steer_angle_max);
steer_angle_max = steer_angle_max / 180.0 * M_PI;
SCENENODE & steernoderef = bodynoderef.GetNode(steernode);
steer_orientation = steernoderef.GetTransform().GetRotation();
}
// load brake/reverse light point light sources (optional)
int i = 0;
std::string istr = "0";
const PTree * cfg_light;
while (cfg.get("light-brake-"+istr, cfg_light))
{
if (!LoadLight(*cfg_light, content, error_output))
{
error_output << "Failed to load lights." << std::endl;
return false;
}
std::stringstream sstr;
sstr << ++i;
istr = sstr.str();
}
i = 0;
istr = "0";
while (cfg.get("light-reverse-"+istr, cfg_light))
{
if (!LoadLight(*cfg_light, content, error_output))
{
error_output << "Failed to load lights." << std::endl;
return false;
}
std::stringstream sstr;
sstr << ++i;
istr = sstr.str();
}
// load car brake/reverse graphics (optional)
if (cfg.get("light-brake", cfg_light))
{
SCENENODE & bodynoderef = topnode.GetNode(bodynode);
if (!loadDrawable(*cfg_light, bodynoderef, 0, &brakelights))
{
error_output << "Failed to load lights." << std::endl;
return false;
}
}
if (cfg.get("light-reverse", cfg_light))
{
SCENENODE & bodynoderef = topnode.GetNode(bodynode);
if (!loadDrawable(*cfg_light, bodynoderef, 0, &reverselights))
{
error_output << "Failed to load lights." << std::endl;
return false;
}
}
const PTree * cfg_cams;
if (!cfg.get("camera", cfg_cams))
{
return false;
}
if (!cfg_cams->size())
{
error_output << "No cameras defined." << std::endl;
return false;
}
cameras.reserve(cfg_cams->size());
for (PTree::const_iterator i = cfg_cams->begin(); i != cfg_cams->end(); ++i)
{
CAMERA * cam = LoadCamera(i->second, camerabounce, error_output);
if (!cam) return false;
cameras.push_back(cam);
}
SetColor(carcolor[0], carcolor[1], carcolor[2]);
return true;
}
void GLUTRedraw(void)
{
// Initialize OpenGL drawing modes
glEnable(GL_LIGHTING);
glDisable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ZERO);
glDepthMask(true);
// Clear window
R3Rgb background = scene->background;
glClearColor(background[0], background[1], background[2], background[3]);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Load camera
LoadCamera(&camera);
// Load scene lights
LoadLights(scene);
// Draw scene camera
DrawCamera(scene);
// Draw scene lights
DrawLights(scene);
// Draw particles
DrawParticles(scene);
// Draw particle sources
DrawParticleSources(scene);
// Draw particle sinks
DrawParticleSinks(scene);
// Draw particle springs
DrawParticleSprings(scene);
// Draw scene surfaces
if (show_faces) {
glEnable(GL_LIGHTING);
DrawScene(scene);
}
// Draw scene edges
if (show_edges) {
glDisable(GL_LIGHTING);
glColor3d(1 - background[0], 1 - background[1], 1 - background[2]);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
DrawScene(scene);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
}
// Save image
if (save_image) {
char image_name[256];
static int image_number = 1;
for (;;) {
sprintf(image_name, "image%d.jpg", image_number++);
FILE *fp = fopen(image_name, "r");
if (!fp) break;
else fclose(fp);
}
GLUTSaveImage(image_name);
printf("Saved %s\n", image_name);
save_image = 0;
}
// Save video
if (save_video) {
char frame_name[512];
static int next_frame = 0;
static int num_frames_recorded = 0;
for (;;) {
sprintf(frame_name, "%sframe%04d.jpg", video_prefix, next_frame++);
FILE *fp = fopen(frame_name, "r");
if (!fp) break;
else fclose(fp);
}
GLUTSaveImage(frame_name);
if (next_frame % 100 == 1) {
printf("Saved %s\n", frame_name);
}
if (num_frames_to_record == ++num_frames_recorded) {
save_video = 0;
printf("Recorded %d frames, stopping as instructed.\n", num_frames_recorded);
quit = 1;
}
}
// Quit here so that can save image before exit
if (quit) {
if (output_image_name) GLUTSaveImage(output_image_name);
GLUTStop();
}
// Swap buffers
glutSwapBuffers();
}
void XMLReader::LoadSceneFromFile(QFile &file, const QStringRef &local_path, Scene &scene, Integrator* &integrator)
{
if(file.open(QIODevice::ReadOnly))
{
QXmlStreamReader xml_reader;
xml_reader.setDevice(&file);
QMap<QString, QList<Geometry*>> material_to_geometry_map;
QMap<QString, QList<Material*>> bxdf_to_material_map;//Key is the bxdf's name
while(!xml_reader.isEndDocument())
{
xml_reader.readNext();
if(xml_reader.isStartElement())
{
//Get the tag name
QString tag(xml_reader.name().toString());
if(QString::compare(tag, QString("camera")) == 0)
{
scene.SetCamera(LoadCamera(xml_reader));
}
else if(QString::compare(tag, QString("geometry")) == 0)
{
Geometry* geometry = LoadGeometry(xml_reader, material_to_geometry_map, local_path);
if(geometry == NULL)
{
return;
}
scene.objects.append(geometry);
}
else if(QString::compare(tag, QString("material")) == 0)
{
Material* material = LoadMaterial(xml_reader, local_path, bxdf_to_material_map);
if(material == NULL)
{
return;
}
scene.materials.append(material);
}
else if(QString::compare(tag, QString("bxdf")) == 0)
{
BxDF* bxdf = LoadBxDF(xml_reader);
if(bxdf == NULL)
{
return;
}
scene.bxdfs.append(bxdf);
}
else if(QString::compare(tag, QString("integrator")) == 0)
{
integrator = LoadIntegrator(xml_reader);
}
else if(QString::compare(tag, QString("pixelSampleLength"), Qt::CaseInsensitive) == 0)
{
scene.sqrt_samples = LoadPixelSamples(xml_reader);
}
}
}
//Associate the materials in the XML file with the geometries that use those materials.
for(int i = 0; i < scene.materials.size(); i++)
{
QList<Geometry*> l = material_to_geometry_map.value(scene.materials[i]->name);
for(int j = 0; j < l.size(); j++)
{
l[j]->SetMaterial(scene.materials[i]);
}
}
for(int i = 0; i < scene.bxdfs.size(); i++)
{
QList<Material*> l = bxdf_to_material_map.value(scene.bxdfs[i]->name);
for(int j = 0; j < l.size(); j++)
{
l[j]->bxdfs.append(scene.bxdfs[i]);
}
}
//Copy emissive geometry from the list of objects to the list of lights
QList<Geometry*> to_lights;
for(Geometry *g : scene.objects)
{
g->create();
if(g->material->is_light_source)
{
to_lights.append(g);
}
g->ComputeArea();
}
for(Geometry *g : to_lights)
{
scene.lights.append(g);
}
file.close();
}
}
