LightSourcePointer SceneLoader::readLightSource(const QDomElement &element) const {
QString lightSourceType;
if (!readAttributeAsString(element, "type", lightSourceType)) {
return LightSourcePointer(NULL);
}
Color ambientIntensity;
Color diffuseIntensity;
Color specularIntensity;
if (!readChildElementAsVector(element, "ambient_emission", ambientIntensity) ||
!readChildElementAsVector(element, "diffuse_emission", diffuseIntensity) ||
!readChildElementAsVector(element, "specular_emission", specularIntensity)) {
return LightSourcePointer(NULL);
}
if (lightSourceType == "directional") {
return readDirectedLight(element, ambientIntensity, diffuseIntensity, specularIntensity);
}
if (lightSourceType == "point") {
return readPointLight(element, ambientIntensity, diffuseIntensity, specularIntensity);
}
if (lightSourceType == "spotlight") {
return readSpotLight(element, ambientIntensity, diffuseIntensity, specularIntensity);
}
std::cerr << "Scene parsing error: unknown light source type '" << lightSourceType.toUtf8().constData() << "'" << std::endl;
return LightSourcePointer(NULL);
}
// Read in all the dynamic lights for the scene
void readDynamicLights(scene_data* scene, const boost::property_tree::ptree& pt)
{
boost::property_tree::ptree::const_iterator iter = pt.front().second.begin();
for (; iter != pt.front().second.end(); ++iter)
{
if (iter->first == "point")
readPointLight(scene, iter->second);
else if (iter->first == "spot")
readSpotLight(scene, iter->second);
else
{
std::cerr << "Error - unknown dynamic light encountered: " << iter->second.front().first << std::endl;
exit(EXIT_FAILURE);
}
}
scene->dynamic.create();
}
