void HeightMapEditor::onRenderButtonClicked()
{
{
boost::recursive_mutex::scoped_lock guard(myMutex);
for (auto task : myTasks)
task->cancellationFlag.store(true);
myTasks.clear();
}
myUi->renderView->scene()->clear();
Json::Value graphJson = myUi->graphBuilder->toJson();
myGraph.reset(new NoiseGraph);
PhysFS::ifstream fs("map/heightmap.png");
std::vector<char> data;
data.assign(std::istreambuf_iterator<char>(fs), std::istreambuf_iterator<char>());
QImage heightmapImage;
heightmapImage.loadFromData((const uchar *)data.data(), data.size());
boost::multi_array<double, 2> heights;
heights.resize(boost::extents[heightmapImage.width()][heightmapImage.height()]);
for (int y = 0; y < heightmapImage.height(); y++)
for (int x = 0; x < heightmapImage.width(); x++)
{
QColor col(heightmapImage.pixel(x, y));
int height = col.red() | col.green() | col.blue();
heights[x][y] = (height / 256.0) * 2 - 1;
}
std::shared_ptr<HeightMapModule> heightmap(new HeightMapModule(heights, 400, 240));
try {
myGraph->module = buildNoiseGraph(graphJson, myGraph->modules, myGraph->defs, heightmap, 0);
} catch (std::exception & e) {
QMessageBox::critical(this, "Error", e.what());
myGraph.reset();
return;
} catch (noise::ExceptionInvalidParam & e) {
QMessageBox::critical(this, "Error", "Invalid parameter");
myGraph.reset();
return;
} catch (noise::ExceptionNoModule & e) {
QMessageBox::critical(this, "Error", "Missing module");
myGraph.reset();
return;
} catch (noise::ExceptionOutOfMemory & e) {
QMessageBox::critical(this, "Error", "Out of memory");
myGraph.reset();
return;
} catch (noise::ExceptionUnknown & e) {
QMessageBox::critical(this, "Error", "Unknown exception");
myGraph.reset();
return;
}
generateRect(myUi->renderView->sceneRect());
}
void HeightMapEditor::onRenderButtonClicked()
{
Json::Value graphJson = myUi->graphBuilder->toJson();
std::cerr << graphJson.toStyledString() << std::endl;
std::vector<std::shared_ptr<noise::module::Module>> modules;
std::map<std::string, std::shared_ptr<noise::module::Module>> defs;
PhysFS::ifstream fs("map/heightmap.png");
std::vector<char> data;
data.assign(std::istreambuf_iterator<char>(fs), std::istreambuf_iterator<char>());
QImage heightmapImage;
heightmapImage.loadFromData((const uchar *)data.data(), data.size());
boost::multi_array<double, 2> heights;
heights.resize(boost::extents[heightmapImage.width()][heightmapImage.height()]);
for (int y = 0; y < heightmapImage.height(); y++)
for (int x = 0; x < heightmapImage.width(); x++)
{
QColor col(heightmapImage.pixel(x, y));
int height = col.red() | col.green() | col.blue();
heights[x][y] = (height / 256.0) * 2 - 1;
}
std::shared_ptr<HeightMapModule> heightmap(new HeightMapModule(heights, 400, 240));
std::shared_ptr<noise::module::Module> graph = buildNoiseGraph(graphJson, modules, defs, heightmap, 0);
QImage img(400 * 4, 240*4, QImage::Format::Format_ARGB32);
for (int y = 0; y < img.height(); y++)
for (int x = 0; x < img.width(); x++)
{
double value = graph->GetValue((double)x, (double)y, 0.0);
double height = (value + 1.0) * 0.5;
// std::cerr << value << std::endl;
if (height < 0) height = 0;
if (height > 1) height = 1;
QColor col (height * 255.0, height * 255.0, height * 255.0);
img.setPixel(x, y, col.rgb());
}
myUi->renderView->scene()->clear();
myUi->renderView->scene()->addPixmap(QPixmap::fromImage(img, Qt::ColorOnly));
}
