ImageRef Scene::parallelRaytrace(CameraRef camera, RenderOption option)
{
Rect leftRect(0.0f, 0.0f, camera->width(), floor(camera->height() / 2.0f));
Rect rightRect(0.0f, leftRect.maxY(), camera->width(), camera->height() - leftRect.size.height);
p1.scene = this;
p1.camera = camera;
p1.rect = leftRect;
p1.option = option;
p1.image = new Image(leftRect.size.width, leftRect.size.height);
p2.scene = this;
p2.camera = camera;
p2.rect = rightRect;
p2.option = option;
p2.image = new Image(rightRect.size.width, rightRect.size.height);
pthread_t thread1, thread2;
int iret1, iret2;
std::cout << this;
iret1 = pthread_create(&thread1, NULL, raytraceThread, &p1);
iret2 = pthread_create(&thread2, NULL, raytraceThread, &p2);
pthread_join(thread1, NULL);
pthread_join(thread2, NULL);
ImageRef image = new Image(camera->width(), camera->height());
image->drawImageAtPoint(p1.image, p1.rect.origin);
image->drawImageAtPoint(p2.image, p2.rect.origin);
delete p1.image;
delete p2.image;
return image;
}
ImageRef Scene::raytrace(CameraRef camera, RenderOption option)
{
Rect rect(0.0f, 0.0f, camera->width(), camera->height());
ImageRef image = new Image(rect.size.width, rect.size.height);
raytrace(camera, Rect(0.0f, 0.0f, camera->width(), camera->height()), option, image);
return image;
}
ImageRef Scene::rasterize(CameraRef camera)
{
ImageRef image = new Image(camera->width(), camera->height());
for (unsigned int y = 0; y < camera->height(); y++) {
for (unsigned int x = 0; x < camera->width(); x++) {
float xPos = (float)x / (float) camera->width() - 0.5f;
float yPos = (float)y / (float) camera->height() - 0.5f;
Ray viewRay = camera->viewRay(xPos, yPos);
HitInfo hitInfo;
if (m_rootGroup->hit(viewRay, &hitInfo)) {
image->setPixelColor(x, y, hitInfo.material->color());
}
}
}
return image;
}
void Scene::raytrace(CameraRef camera, Rect rect, RenderOption option, ImageRef image)
{
ASSERT(image->width() == rect.size.width && image->height() == rect.size.height);
for (unsigned int y = 0; y < rect.size.height; y++) {
for (unsigned int x = 0; x < rect.size.width; x++) {
float xPos = (float)(x + rect.origin.x) / (float) camera->width() - 0.5f;
float yPos = (float)(y + rect.origin.y) / (float) camera->height() - 0.5f;
Ray viewRay = camera->viewRay(xPos, yPos);
HitInfo hitInfo;
Color color;
if (traceRay(viewRay, option, 1.0f, 0, &color, &hitInfo)) {
image->setPixelColor(x, y, color);
} else {
// set Background ccolor
//image->setPixelColor(x, y, hitInfo.material->color());
}
}
}
}
