int main() {
RayTracer r;
r.Initialize();
r.Render();
r.Clean();
return 0;
}
int main(int argc, char *argv[])
{
// For detecting memory leaks
#ifdef _MSVC
_CrtSetDbgFlag ( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );
_CrtSetReportMode( _CRT_ERROR, _CRTDBG_MODE_DEBUG );
#endif
//// Seed the random number generator
//srand( (unsigned int)time( 0 ) );
// Display license
std::cout
<< "RayWatch - A simple cross-platform RayTracer." << std::endl
<< "Copyright (C) 2008" << std::endl
<< " Angelo Rohit Joseph Pulikotil," << std::endl
<< " Francis Xavier Joseph Pulikotil" << std::endl
<< "This program comes with ABSOLUTELY NO WARRANTY." << std::endl
<< "This is free software, and you are welcome to redistribute it" << std::endl
<< "under certain conditions; see <http://www.gnu.org/licenses/>." << std::endl << std::endl;
if( argc < 3 )
{
std::cout << "Insufficient arguments" << std::endl << std::endl;
std::cout << "Syntax (to render a Scene file):" << std::endl << argv[0] << " <input scene filename> <output bitmap filename> [width] [height]" << std::endl << std::endl;
std::cout << "Syntax (to generate a sample file): " << std::endl << argv[0] << " --gen:<sample name> <output scene filename>" << std::endl << std::endl;
std::cout << "Currently supported samples are CornellBox, Example1, Example2" << std::endl;
return -1;
}
// If we're supposed to generate a sample file
if( Utility::String::CaseInsensitiveCompare( std::string( argv[1] ).substr(0, 6), "--gen:" ) == 0 )
{
const std::string sampleName = std::string( argv[1] ).substr( 6 );
bool bResult = false;
if( Utility::String::CaseInsensitiveCompare( sampleName, "CornellBox" ) == 0 )
{
bResult = Examples::CornellBox( argv[2] );
}
else if( Utility::String::CaseInsensitiveCompare( sampleName, "Example1" ) == 0 )
{
bResult = Examples::Example1( argv[2] );
}
else if( Utility::String::CaseInsensitiveCompare( sampleName, "Example2" ) == 0 )
{
bResult = Examples::Example2( argv[2] );
}
else // We don't have this sample
std::cout << "Error: Unknown sample name: " << sampleName << std::endl;
if( !bResult )
return -1;
std::cout << "Sample '" << sampleName << "' written to file: " << argv[2] << std::endl;
return 0;
}
// Get the required width
int width = 500;
if( argc > 3 )
{
if( !Utility::String::FromString(width, argv[3]) || (width < 1) )
{
std::cout << "Error: Invalid integer specified for width: " << argv[3] << std::endl;
return -1;
}
}
// Get the required height
int height = 500;
if( argc > 4 )
{
if( !Utility::String::FromString(height, argv[4]) || (height < 1) )
{
std::cout << "Error: Invalid integer specified for height: " << argv[4] << std::endl;
return -1;
}
}
// Create a Camera
Camera camera;
camera._position .Set( 0, 0, 0 );
camera._hFov = 45 * (width / (float)height);
camera._vFov = 45;
// Create an Image
Image image;
if( !image.Create( width, height ) )
{
std::cout << "Error: Failed to create Image of size " << width << "x" << height << std::endl;
return -1;
}
// Open the input scene file
std::fstream stream;
stream.open( argv[1], std::ios_base::in );
if( !stream.is_open() )
{
std::cout << "Error: Failed to open input scene file: " << argv[1] << std::endl;
return -1;
}
// Create a Deserializer for the stream
Deserializer d;
if( !d.Open( stream ) )
{
std::cout << "Error: Failed to read file: " << argv[1] << std::endl;
return -1;
}
// Load the scene from the stream
Scene *pScene = d.Deserialize<Scene>( 0 );
if( !pScene )
{
std::cout << "Error: Failed to load Scene from file: " << argv[1] << std::endl;
return -1;
}
// Create a RayTracer and ray trace the scene
RayTracer rayTracer;
std::cout << "RayTracing";
const bool bRTResult = rayTracer.Render( camera, *pScene, image );
std::cout << "Done" << std::endl;
// We're done with the scene, delete it
SafeDeleteScalar( pScene );
if( !bRTResult )
{
std::cout << "Error: Failed while RayTracing the Scene." << std::endl;
return -1;
}
// Save the image to the required output file
if( !image.Save( argv[2] ) )
{
std::cout << "Error: Failed while saving image to file: " << argv[2] << std::endl;
return -1;
}
return 0;
}
