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/*************************************************************************
* Copyright (C) 2009 Tavian Barnes <tavianator@gmail.com> *
* *
* This file is part of The Dimension Library. *
* *
* The Dimension Library is free software; you can redistribute it and/ *
* or modify it under the terms of the GNU Lesser General Public License *
* as published by the Free Software Foundation; either version 3 of the *
* License, or (at your option) any later version. *
* *
* The Dimension Library is distributed in the hope that it will be *
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty *
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this program. If not, see *
* <http://www.gnu.org/licenses/>. *
*************************************************************************/
#include "dimensionxx.hpp"
namespace Dimension
{
// Construct a raytracer
Raytracer::Raytracer(Scene& scene)
: m_scene(&scene), m_rendered(false) { }
// Call render() if we've never rendered the scene
Raytracer::~Raytracer()
{
if (!m_rendered) {
try {
render();
} catch (...) {
dmnsn_error(SEVERITY_MEDIUM,
"Rendering scene failed in Raytracer destructor.");
}
}
}
// Render the scene
void Raytracer::render()
{
// Raytrace the scene
if (dmnsn_raytrace_scene(m_scene->dmnsn()) != 0) {
// The rendering operation failed
throw Dimension_Error("Raytracing scene failed.");
}
m_rendered = true; // Don't render the scene again in the destructor
}
// Render a scene in the background
Progress
Raytracer::render_async()
{
m_rendered = true; // Don't render the scene again in the destructor
// Start the asynchronous task
dmnsn_progress *progress = dmnsn_raytrace_scene_async(m_scene->dmnsn());
if (!progress) {
throw Dimension_Error("Starting background raytrace failed.");
}
// Return the Progress object
return Progress(progress);
}
}
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