/*
* Escribe en el string "files" una lista de archivos separados por salto de línea,
* luego carga todos esos archivos con ObjLoader.
*/
void MeshViewer::initGeometry()
{
double start, end;
sutilCurrentTime(&start);
m_geometry_group = m_context->createGeometryGroup();
float min_y = FLT_MAX;
std::string files = "";
size_t found;
std::string m_filename = m_mesh_path + m_mesh_file;
// En caso de no existir el archivo del modelo busca todos los modelos ".obj" del directorio
if (ObjLoader::isMyFile(m_filename.c_str()) && MeshViewer::existsFile(m_filename.c_str()))
{
found = m_filename.find_last_of("/\\");
files = m_filename.substr(found+1) + "\n";
}
else
{
std::string match = m_mesh_path + "*.obj";
files = MeshViewer::getFilesByExtension(match.c_str());
if (files.size() == 0)
{
std::cerr << "Unrecognized model file extension '" << m_filename << "'" << std::endl;
exit( 0 );
}
}
// Carga todos los modelos del directorio
while (files.size() > 0)
{
found = files.find_first_of('\n');
std::string filename = m_mesh_path + files.substr(0, found);
ObjLoader* loader = new ObjLoader(filename.c_str(), m_context, m_geometry_group, m_accel_builder.c_str(), m_accel_traverser.c_str(), m_accel_refine.c_str(), false);
loader->setPathProgram(m_program_path);
loader->setIntersectProgram(m_intersect_file, m_intersect_name);
loader->setBoundsProgram(m_bounds_file, m_bounds_name);
loader->setAnyHitProgram(m_any_hit_file, m_any_hit_name);
loader->setClosestHitProgram(m_closest_hit_file, m_closest_hit_name);
files.erase(0, found+1);
loader->load();
m_aabb = loader->getSceneBBox();
min_y = (m_aabb.m_min.y < min_y) ? m_aabb.m_min.y : min_y;
delete loader;
}
m_context[ "top_object" ]->set( m_geometry_group );
m_context[ "top_shadower" ]->set( m_geometry_group );
m_context[ "floor_y" ]->setFloat( min_y );
sutilCurrentTime(&end);
std::cerr << "Time to load " << (false ? "and cluster " : "") << "geometry: " << end-start << " s.\n";
}
void MeshViewer::initGeometry()
{
m_geometry_group = m_context->createGeometryGroup();
if( ObjLoader::isMyFile( m_filename.c_str() ) ) {
// Load OBJ model
ObjLoader* loader = 0;
if( m_shade_mode == SM_NORMAL || m_shade_mode == SM_AO ) {
loader = new ObjLoader( m_filename.c_str(), m_context, m_geometry_group, m_material );
} else if ( m_shade_mode == SM_ONE_BOUNCE_DIFFUSE ) {
loader = new ObjLoader( m_filename.c_str(), m_context, m_geometry_group, m_material, true );
} else {
loader = new ObjLoader( m_filename.c_str(), m_context, m_geometry_group );
}
const std::string geom_ptx = ptxpath( "displacement", "geometry_programs.cu" );
loader->setIntersectProgram(m_context->createProgramFromPTXFile( geom_ptx, "mesh_intersect" ) );
loader->setBboxProgram(m_context->createProgramFromPTXFile( geom_ptx, "mesh_bounds" ) );
loader->load();
m_aabb = loader->getSceneBBox();
delete loader;
} else if( PlyLoader::isMyFile( m_filename ) ) {
// Load PLY model
PlyLoader loader( m_filename, m_context, m_geometry_group, m_material );
loader.load();
m_aabb = loader.getSceneBBox();
} else {
std::cerr << "Unrecognized model file extension '" << m_filename << "'" << std::endl;
exit( 0 );
}
// Override acceleration structure builder. The default used by the ObjLoader is Sbvh.
if( !m_accel_builder.empty() ) {
Acceleration accel = m_geometry_group->getAcceleration();
accel->setBuilder( m_accel_builder );
}
Acceleration accel = m_geometry_group->getAcceleration();
accel->setBuilder("Bvh");
// Override traverer if one is given.
if( !m_accel_traverser.empty() ) {
Acceleration accel = m_geometry_group->getAcceleration();
accel->setTraverser( m_accel_traverser );
}
if( m_accel_builder == "TriangleKdTree" || m_accel_traverser == "KdTree") {
Acceleration accel = m_geometry_group->getAcceleration();
accel->setProperty( "vertex_buffer_name", "vertex_buffer" );
accel->setProperty( "index_buffer_name", "vindex_buffer" );
}
// Load acceleration structure from a file if that was enabled on the
// command line, and if we can find a cache file. Note that the type of
// acceleration used will be overridden by what is found in the file.
loadAccelCache();
m_context[ "top_object" ]->set( m_geometry_group );
m_context[ "top_shadower" ]->set( m_geometry_group );
}