void RaytracerApplication::toggle_raytracing( int width, int height )
{
assert( width > 0 && height > 0 );
// do setup if starting a new raytrace
if ( !raytracing ) {
// only re-allocate if the dimensions changed
if ( buf_width != width || buf_height != height )
{
free( buffer );
buffer = (unsigned char*) malloc( BUFFER_SIZE( width, height ) );
if ( !buffer ) {
std::cout << "Unable to allocate buffer.\n";
return; // leave untoggled since we have no buffer.
}
buf_width = width;
buf_height = height;
}
// initialize the raytracer (first make sure camera aspect is correct)
scene.camera.aspect = real_t( width ) / real_t( height );
if (!raytracer.initialize(&scene, options.num_samples, width, height))
{
std::cout << "Raytracer initialization failed.\n";
return; // leave untoggled since initialization failed.
}
// reset flag that says we are done
raytrace_finished = false;
}
raytracing = !raytracing;
}
void RaytracerApplication::toggle_raytracing( int width, int height )
{
assert( width > 0 && height > 0 );
if ( !raytracing ) {
if ( buf_width != width || buf_height != height ) {
free( buffer );
buffer = (unsigned char*) malloc( BUFFER_SIZE( width, height ) );
if ( !buffer ) {
std::cout << "Unable to allocate buffer.\n";
return;
}
buf_width = width;
buf_height = height;
}
scene.camera.aspect = real_t( width ) / real_t( height );
if ( !raytracer.initialize( &scene, width, height ) ) {
std::cout << "Raytracer initialization failed.\n";
return;
}
raytrace_finished = false;
}
raytracing = !raytracing;
}
void RaytracerApplication::handle_event( const SDL_Event& event )
{
int width, height;
if ( !raytracing ) {
camera_control.handle_event( this, event );
}
switch ( event.type )
{
case SDL_KEYDOWN:
switch ( event.key.keysym.sym )
{
case KEY_RAYTRACE:
get_dimension( &width, &height );
toggle_raytracing( width, height );
break;
case KEY_SEND_PHOTONS:
raytracer.initialize(&scene, options.num_samples, 0, 0);
queue_render_photon=true;
case KEY_SCREENSHOT:
output_image();
break;
default:
break;
}
default:
break;
}
}