Function pbrt::integrators::render

pub fn render(
    scene: &Scene, 
    camera: &Arc<dyn Camera + Send + Sync>, 
    sampler: &mut Box<dyn Sampler + Send + Sync>, 
    integrator: &mut Box<dyn SamplerIntegrator + Send + Sync>, 
    num_threads: u8
)

Main function to render a scene mutli-threaded (using all available cores).