int test_spherical_sampling_serialization() {
#ifdef MINSG_EXT_SVS
std::cout << "Test serialization of SVS objects ... ";
Util::Timer timer;
timer.reset();
using namespace MinSG::SVS;
MinSG::SceneManagement::SceneManager sceneManager;
const uint32_t count = 10;
std::array<Util::Reference<MinSG::GeometryNode>, count> nodes;
for(uint_fast32_t i = 0; i < count; ++i) {
nodes[i] = new MinSG::GeometryNode;
sceneManager.registerNode(std::string("Node") + Util::StringUtils::toString(i), nodes[i].get());
}
MinSG::VisibilitySubdivision::VisibilityVector vv;
for(uint_fast32_t i = 0; i < count; ++i) {
vv.setNode(nodes[i].get(), i);
}
std::vector<SamplePoint> samples;
{
using namespace Rendering::MeshUtils::PlatonicSolids;
Util::Reference<Rendering::Mesh> mesh = createEdgeSubdivisionSphere(createIcosahedron(), 4);
auto accessor = Rendering::PositionAttributeAccessor::create(mesh->openVertexData(), Rendering::VertexAttributeIds::POSITION);
for(std::size_t i = 0; accessor->checkRange(i); ++i) {
samples.emplace_back(accessor->getPosition(i));
}
}
{
std::stringstream stream;
stream.precision(std::numeric_limits<long double>::digits10);
// Serialize
for(const auto & sample : samples) {
stream << sample.getPosition() << ' ';
sample.getValue().serialize(stream, sceneManager);
stream << ' ';
}
// Unserialize
std::vector<SamplePoint> newSamples;
for(std::size_t s = 0; s < samples.size(); ++s) {
Geometry::Vec3f pos;
stream >> pos;
SamplePoint sample(pos);
sample.setValue(MinSG::VisibilitySubdivision::VisibilityVector::unserialize(stream, sceneManager));
newSamples.push_back(sample);
}
for(std::size_t s = 0; s < samples.size(); ++s) {
const SamplePoint & oldSample = samples[s];
const SamplePoint & newSample = newSamples[s];
if(oldSample.getPosition().distance(newSample.getPosition()) > std::numeric_limits<float>::epsilon()) {
std::cout << "Serialization/unserialization failed." << std::endl;
return EXIT_FAILURE;
}
const auto & oldVV = oldSample.getValue();
const auto & newVV = newSample.getValue();
for(uint_fast32_t n = 0; n < count; ++n) {
if(oldVV.getBenefits(nodes[n].get()) != newVV.getBenefits(nodes[n].get())) {
std::cout << "Serialization/unserialization failed." << std::endl;
return EXIT_FAILURE;
}
}
}
}
VisibilitySphere visibilitySphere(Geometry::Sphere_f(Geometry::Vec3f(1.0f, 2.0f, 3.0f), 17.0f), samples);
{
std::stringstream stream;
stream.precision(std::numeric_limits<long double>::digits10);
// Serialize
stream << visibilitySphere.getSphere() << ' ' << samples.size();
for(const auto & sample : samples) {
stream << ' ' << sample.getPosition() << ' ';
sample.getValue().serialize(stream, sceneManager);
stream << ' ';
}
// Unserialize
Geometry::Sphere_f sphere;
stream >> sphere;
std::size_t sampleCount;
stream >> sampleCount;
std::vector<SamplePoint> newSamples;
for(std::size_t s = 0; s < sampleCount; ++s) {
Geometry::Vec3f pos;
stream >> pos;
SamplePoint sample(pos);
sample.setValue(MinSG::VisibilitySubdivision::VisibilityVector::unserialize(stream, sceneManager));
newSamples.push_back(sample);
}
VisibilitySphere newVisibilitySphere(sphere, newSamples);
if(!(visibilitySphere.getSphere() == newVisibilitySphere.getSphere())) {
std::cout << "Serialization/unserialization failed." << std::endl;
return EXIT_FAILURE;
}
for(std::size_t s = 0; s < samples.size(); ++s) {
const SamplePoint & oldSample = visibilitySphere.getSamples()[s];
const SamplePoint & newSample = newVisibilitySphere.getSamples()[s];
if(oldSample.getPosition().distance(newSample.getPosition()) > std::numeric_limits<float>::epsilon()) {
std::cout << "Serialization/unserialization failed." << std::endl;
return EXIT_FAILURE;
}
const auto & oldVV = oldSample.getValue();
const auto & newVV = newSample.getValue();
for(uint_fast32_t n = 0; n < count; ++n) {
if(oldVV.getBenefits(nodes[n].get()) != newVV.getBenefits(nodes[n].get())) {
std::cout << "Serialization/unserialization failed." << std::endl;
return EXIT_FAILURE;
}
}
}
}
timer.stop();
std::cout << "done (duration: " << timer.getSeconds() << " s).\n";
#endif /* MINSG_EXT_SVS */
return EXIT_SUCCESS;
}
int test_large_scene(Util::UI::Window * window, Util::UI::EventContext & eventContext) {
// texture registry
std::map<std::string, Util::Reference<Rendering::Texture> > textures;
std::cout << "Create FrameContext...\n";
FrameContext fc;
unsigned int renderingFlags = /*BOUNDING_BOXES|SHOW_META_OBJECTS|*/FRUSTUM_CULLING/*|SHOW_COORD_SYSTEM*/;//|SHOW_COORD_SYSTEM;
std::cout << "Create scene graph...\n";
Util::Reference<GroupNode> root = new MinSG::ListNode();
/// Skybox
SkyboxState * sb = SkyboxState::createSkybox("Data/texture/?.bmp");
root->addState(sb);
/// Some shperes...
{
std::default_random_engine engine;
std::uniform_real_distribution<float> coordinateDist(0.0f, 200.0f);
std::vector<Util::Reference<Rendering::Mesh> > spheres;
Util::Reference<Rendering::Mesh> icosahedron = Rendering::MeshUtils::PlatonicSolids::createIcosahedron();
for(int i=0;i<6;++i)
spheres.push_back(Rendering::MeshUtils::PlatonicSolids::createEdgeSubdivisionSphere(icosahedron.get(), i)); // 6... 81920 triangles each
for (int i = 0; i < 1000; i++) {
// create a real clone inclusive internal data!
MinSG::GeometryNode * gn = new GeometryNode(spheres[std::uniform_int_distribution<std::size_t>(0, spheres.size() - 1)(engine)]->clone());
gn->moveRel(Geometry::Vec3(coordinateDist(engine), coordinateDist(engine), coordinateDist(engine)));
root->addChild(gn);
gn->scale(0.1 + std::uniform_real_distribution<float>(0.0f, 1000.0f)(engine) / 400.0);
}
}
/// Camera
Node * schwein = loadModel(Util::FileName("Data/model/Schwein.low.t.ply"), MESH_AUTO_CENTER | MESH_AUTO_SCALE);
ListNode * camera = new ListNode();
CameraNode * camNode = new CameraNode();
camNode->setViewport(Geometry::Rect_i(0, 0, 1024, 768));
camNode->setNearFar(0.1, 2000);
camNode->applyVerticalAngle(80);
camNode->moveRel(Geometry::Vec3(0, 4, 10));
camera->addChild(camNode);
camera->addChild(schwein);
schwein->moveRel(Geometry::Vec3(0, 0, 0));
schwein->rotateLocal_deg(180, Geometry::Vec3(0, 1, 0));
LightNode * myHeadLight = LightNode::createPointLight();
myHeadLight->scale(1);
myHeadLight->moveRel(Geometry::Vec3(0, 0, 0));
camera->addChild(myHeadLight);
LightingState * lightState = new LightingState;
lightState->setLight(myHeadLight);
root->addState(lightState);
root->addChild(camera);
/// Eventhandler
MoveNodeHandler * eh = new MoveNodeHandler();
MoveNodeHandler::initClaudius(eh, camera);
// ---------------------------------------------------------------------------------------------
Rendering::RenderingContext::clearScreen(Util::Color4f(0.5f, 0.5f, 0.5f, 0.5f));
// ----
GET_GL_ERROR();
uint32_t fpsFrameCounter = 0;
Util::Timer fpsTimer;
std::cout << "\nEntering main loop...\n";
// program main loop
bool done = false;
while (!done) {
++fpsFrameCounter;
double seconds = fpsTimer.getSeconds();
if (seconds > 1.0) {
double fps = static_cast<double> (fpsFrameCounter) / seconds;
std::cout << "\r " << fps << " fps ";
std::cout.flush();
fpsTimer.reset();
fpsFrameCounter = 0;
}
// message processing loop
eventContext.getEventQueue().process();
while (eventContext.getEventQueue().getNumEventsAvailable() > 0) {
Util::UI::Event event = eventContext.getEventQueue().popEvent();
// check for messages
switch (event.type) {
// exit if the window is closed
case Util::UI::EVENT_QUIT:
done = true;
break;
// check for keypresses
case Util::UI::EVENT_KEYBOARD: {
if(event.keyboard.pressed && event.keyboard.key == Util::UI::KEY_ESCAPE) {
done = true;
}
break;
}
} // end switch
} // end of message processing
// apply translation
eh->execute();
// clear screen
Rendering::RenderingContext::clearScreen(Util::Color4f(0.0f, 0.0f, 0.0f, 1.0f));
// enable Camera
fc.setCamera(camNode);
// render Scene
root->display(fc, renderingFlags);
window->swapBuffers();
GET_GL_ERROR();
} // end main loop
// destroy scene graph
MinSG::destroy(root.get());
root = nullptr;
// all is well ;)
std::cout << "Exited cleanly\n";
//system("pause");
return EXIT_SUCCESS;
}
int test_spherical_sampling() {
#ifdef MINSG_EXT_SVS
std::cout << "Test SVS ... ";
Util::Timer timer;
timer.reset();
MinSG::SceneManagement::SceneManager sceneManager;
MinSG::FrameContext frameContext;
Rendering::VertexDescription vertexDesc;
vertexDesc.appendPosition3D();
Util::Reference<Rendering::Mesh> boxMesh = Rendering::MeshUtils::MeshBuilder::createBox(vertexDesc, Geometry::Box(Geometry::Vec3f(0.5f, 0.5f, 0.5f), 1));
/*
* Create a 1D array of n unit-size boxes in the x axis
*
* /
* ..L2
* / /
* ......L1 /
* / / /
* ...L0.... / /
* / / / / /
* ------------------------- ... -----
* | 0 | 1 | 2 | 3 | 4 | 5 | | n |
* | | | | | | | | |
* ------------------------- ... -----
* ^ ^ ^
* | | |
* x=0 x=4 x=n
*
* The first three boxes are put into the first list node L0.
* L0 together with the fourth box are put into the second list node L1.
*/
const uint32_t count = 512;
std::vector<Util::Reference<MinSG::ListNode>> listNodes;
std::vector<Util::Reference<MinSG::GeometryNode>> boxNodes;
for(uint_fast32_t x = 0; x < count; ++x) {
MinSG::GeometryNode * geoNode = new MinSG::GeometryNode(boxMesh);
geoNode->moveLocal(Geometry::Vec3f(x, 0, 0));
sceneManager.registerNode(std::string("Node") + Util::StringUtils::toString(x), geoNode);
boxNodes.push_back(geoNode);
if(x != 1 && x != 2) {
listNodes.push_back(new MinSG::ListNode);
}
if(x < 3) {
listNodes.front()->addChild(geoNode);
} else {
listNodes[x - 2]->addChild(listNodes[x - 3].get());
listNodes[x - 2]->addChild(geoNode);
}
}
// Debug output of created scene graph
//MinSG::GraphVizOutput::treeToFile(listNodes.back().get(), &sceneManager, Util::FileName("output.dot"));
// Perform the sampling
std::vector<Geometry::Vec3f> positions;
positions.emplace_back(-1, 0, 0); // left
positions.emplace_back(1, 0, 0); // right
positions.emplace_back(0, 1, 0); // top
positions.emplace_back(0, 0, 1); // back
// The resolution has to be at least the number of boxes. Otherwise, boxes will be missed during visibility testing.
MinSG::SVS::PreprocessingContext preprocessingContext(sceneManager, frameContext, listNodes.back().get(), positions, count, false, false);
while(!preprocessingContext.isFinished()) {
preprocessingContext.preprocessSingleNode();
}
// Validate the results
for(uint_fast32_t listIndex = 0; listIndex < count - 2; ++listIndex) {
MinSG::ListNode * listNode = listNodes[listIndex].get();
const MinSG::SVS::VisibilitySphere & visibilitySphere = MinSG::SVS::retrieveVisibilitySphere(listNode);
{
// Because the geometry is built of axis-aligned bounding boxes only, the sphere has to contain the group's bounding box.
assert(visibilitySphere.getSphere().distance(listNode->getBB().getMin()) < 1.0e-9);
assert(visibilitySphere.getSphere().distance(listNode->getBB().getMax()) < 1.0e-9);
}
{
// left => only first box must be visible
const auto vv = visibilitySphere.queryValue(positions[0], MinSG::SVS::INTERPOLATION_NEAREST);
assert(vv.getBenefits(boxNodes.front().get()) > 0);
for(uint_fast32_t boxIndex = 1; boxIndex < count; ++boxIndex) {
MinSG::GeometryNode * geoNode = boxNodes[boxIndex].get();
assert(vv.getBenefits(geoNode) == 0);
}
}
{
// right => only last box inside the subtree must be visible
const auto vv = visibilitySphere.queryValue(positions[1], MinSG::SVS::INTERPOLATION_NEAREST);
const uint32_t lastBoxIndex = listIndex + 2;
assert(vv.getBenefits(boxNodes[lastBoxIndex].get()) > 0);
for(uint_fast32_t boxIndex = 0; boxIndex < count; ++boxIndex) {
if(boxIndex != lastBoxIndex) {
MinSG::GeometryNode * geoNode = boxNodes[boxIndex].get();
assert(vv.getBenefits(geoNode) == 0);
}
}
}
// top, back => all boxes in the subtree must be visible
for(uint_fast32_t posIndex = 2; posIndex <= 3; ++posIndex) {
const auto vv = visibilitySphere.queryValue(positions[posIndex], MinSG::SVS::INTERPOLATION_NEAREST);
const auto geoNodes = MinSG::collectNodes<MinSG::GeometryNode>(listNode);
for(const auto & geoNode : geoNodes) {
assert(vv.getBenefits(geoNode) > 0);
}
}
}
boxNodes.clear();
MinSG::destroy(listNodes.back().get());
listNodes.clear();
timer.stop();
std::cout << "done (duration: " << timer.getSeconds() << " s).\n";
#endif /* MINSG_EXT_SVS */
return EXIT_SUCCESS;
}
int test_OutOfCore() {
#ifdef MINSG_EXT_OUTOFCORE
const bool verbose = true;
// Tests for MinSG::OutOfCore::CacheObjectPriority
if(sizeof(MinSG::OutOfCore::CacheObjectPriority) != 8) {
return EXIT_FAILURE;
}
if(!(MinSG::OutOfCore::CacheObjectPriority(1, 2, 3) == MinSG::OutOfCore::CacheObjectPriority(1, 2, 3))) {
return EXIT_FAILURE;
}
if(!(MinSG::OutOfCore::CacheObjectPriority(1, 100, 100) < MinSG::OutOfCore::CacheObjectPriority(2, 0, 0))) {
return EXIT_FAILURE;
}
if(!(MinSG::OutOfCore::CacheObjectPriority(2, 1, 100) < MinSG::OutOfCore::CacheObjectPriority(2, 2, 0))) {
return EXIT_FAILURE;
}
if(!(MinSG::OutOfCore::CacheObjectPriority(2, 2, 1) < MinSG::OutOfCore::CacheObjectPriority(2, 2, 2))) {
return EXIT_FAILURE;
}
std::default_random_engine engine;
std::uniform_int_distribution<std::size_t> vertexCountDist(10, 1000);
const uint32_t numMeshes = 30000;
const Util::TemporaryDirectory tempDir("MinSGTest_OutOfCore");
// Create empty meshes and save them into a subdirectory.
{
Rendering::VertexDescription vertexDesc;
vertexDesc.appendPosition3D();
for(uint_fast32_t i = 0; i < numMeshes; ++i) {
Util::Reference<Rendering::Mesh> mesh = new Rendering::Mesh(vertexDesc, vertexCountDist(engine), 64);
Rendering::MeshVertexData & vertexData = mesh->openVertexData();
std::fill_n(vertexData.data(), vertexData.dataSize(), 0);
vertexData.markAsChanged();
Rendering::MeshIndexData & indexData = mesh->openIndexData();
std::fill_n(indexData.data(), indexData.getIndexCount(), 0);
indexData.markAsChanged();
const std::string numberString = Util::StringUtils::toString<uint32_t>(i);
Rendering::Serialization::saveMesh(mesh.get(), Util::FileName(tempDir.getPath().getDir() + numberString + ".mmf"));
}
}
// Set up the OutOfCore system.
MinSG::FrameContext frameContext;
MinSG::OutOfCore::setUp(frameContext);
MinSG::OutOfCore::CacheManager & manager = MinSG::OutOfCore::getCacheManager();
manager.addCacheLevel(MinSG::OutOfCore::CacheLevelType::FILE_SYSTEM, 0);
manager.addCacheLevel(MinSG::OutOfCore::CacheLevelType::FILES, 512 * kibibyte);
manager.addCacheLevel(MinSG::OutOfCore::CacheLevelType::MAIN_MEMORY, 256 * kibibyte);
Util::Timer addTimer;
addTimer.reset();
std::cout << "Adding meshes ..." << std::flush;
// Add the meshes to the OutOfCore system.
std::vector<Util::Reference<Rendering::Mesh> > meshes;
meshes.reserve(numMeshes);
static const Geometry::Box boundingBox(-1.0f, 1.0f, -1.0f, 1.0f, -1.0f, 1.0f);
for(uint_fast32_t i = 0; i < numMeshes; ++i) {
const std::string numberString = Util::StringUtils::toString<uint32_t>(i);
meshes.push_back(MinSG::OutOfCore::addMesh(Util::FileName(tempDir.getPath().getDir() + numberString + ".mmf"), boundingBox));
}
manager.trigger();
addTimer.stop();
std::cout << " done (" << addTimer.getSeconds() << " s)" << std::endl;
Util::Timer displayTimer;
Util::Timer assureLocalTimer;
Util::Timer overallTimer;
overallTimer.reset();
uint32_t frame = 0;
{
// Simulate frames to get the OutOfCore system working.
std::uniform_int_distribution<std::size_t> indexDist(0, meshes.size() - 1);
for(; frame < 10; ++frame) {
std::cout << "Executing frame " << frame << " ..." << std::flush;
frameContext.beginFrame();
displayTimer.reset();
// Simulate display of meshes to change the priorities of the system.
for(uint32_t i = 0; i < meshes.size() / 2; ++i) {
const uint32_t meshIndex = indexDist(engine);
Rendering::Mesh * mesh = meshes[meshIndex].get();
manager.meshDisplay(mesh);
}
manager.trigger();
displayTimer.stop();
assureLocalTimer.reset();
for(uint32_t i = 0; i < 10; ++i) {
const uint32_t meshIndex = indexDist(engine);
Rendering::Mesh * mesh = meshes[meshIndex].get();
const Rendering::MeshVertexData & vd = mesh->openVertexData();
const Rendering::MeshIndexData & id = mesh->openIndexData();
if (!vd.hasLocalData() || !id.hasLocalData()) {
std::cout << "Error: Mesh has no local data." << std::endl;
return EXIT_FAILURE;
}
}
assureLocalTimer.stop();
frameContext.endFrame();
std::cout << " done (display: " << displayTimer.getSeconds() << " s, assureLocal: " << assureLocalTimer.getSeconds() << " s)" << std::endl;
if(verbose) {
outputCacheLevelInformation();
}
}
}
for(uint32_t round = 0; round < 10; ++round) {
Util::Timer addAgainTimer;
addAgainTimer.reset();
std::cout << "Adding additional meshes ..." << std::flush;
// Simulate loading a second scene by adding meshes again.
meshes.reserve(meshes.size() + 3 * numMeshes);
for(uint_fast32_t i = 0; i < numMeshes; ++i) {
const std::string numberString = Util::StringUtils::toString<uint32_t>(i);
meshes.push_back(MinSG::OutOfCore::addMesh(Util::FileName(tempDir.getPath().getDir() + numberString + ".mmf"), boundingBox));
meshes.push_back(MinSG::OutOfCore::addMesh(Util::FileName(tempDir.getPath().getDir() + numberString + ".mmf"), boundingBox));
meshes.push_back(MinSG::OutOfCore::addMesh(Util::FileName(tempDir.getPath().getDir() + numberString + ".mmf"), boundingBox));
}
manager.trigger();
addAgainTimer.stop();
std::cout << " done (" << addAgainTimer.getSeconds() << " s)" << std::endl;
// Simulate frames to get the OutOfCore system working.
std::normal_distribution<double> indexDist(meshes.size() / 2, std::sqrt(meshes.size() / 2));
const auto untilFrame = frame + 5;
for(; frame < untilFrame; ++frame) {
std::cout << "Executing frame " << frame << " ..." << std::flush;
frameContext.beginFrame();
displayTimer.reset();
// Simulate display of meshes to change the priorities of the system.
for(uint32_t i = 0; i < meshes.size() / 10; ++i) {
const std::size_t meshIndex = std::max(static_cast<std::size_t>(0), std::min(static_cast<std::size_t>(indexDist(engine)), meshes.size() - 1));
Rendering::Mesh * mesh = meshes[meshIndex].get();
manager.meshDisplay(mesh);
}
manager.trigger();
displayTimer.stop();
frameContext.endFrame();
std::cout << " done (display: " << displayTimer.getSeconds() << " s)" << std::endl;
if(verbose) {
outputCacheLevelInformation();
}
}
}
overallTimer.stop();
std::cout << "Overall duration: " << overallTimer.getSeconds() << " s" << std::endl;
MinSG::OutOfCore::shutDown();
return EXIT_SUCCESS;
#else /* MINSG_EXT_OUTOFCORE */
return EXIT_FAILURE;
#endif /* MINSG_EXT_OUTOFCORE */
}
