int main(int argc, char** argv) {
gua::init(argc, argv);
//create simple untextured material shader
auto lod_keep_input_desc = std::make_shared<gua::MaterialShaderDescription>("./data/materials/PLOD_use_input_color.gmd");
auto lod_keep_color_shader(std::make_shared<gua::MaterialShader>("PLOD_pass_input_color", lod_keep_input_desc));
gua::MaterialShaderDatabase::instance()->add(lod_keep_color_shader);
//create material for pointcloud
auto lod_rough = lod_keep_color_shader->make_new_material();
lod_rough->set_uniform("metalness", 0.2f);
lod_rough->set_uniform("roughness", 0.4f);
lod_rough->set_uniform("emissivity", 0.8f);
//configure lod backend
gua::LodLoader lod_loader;
lod_loader.set_out_of_core_budget_in_mb(512);
lod_loader.set_render_budget_in_mb(512);
lod_loader.set_upload_budget_in_mb(20);
//load a sample pointcloud
auto plod_node = lod_loader.load_lod_pointcloud(
"pointcloud",
"/opt/3d_models/lamure/plod/pig_pr.bvh",
lod_rough,
gua::LodLoader::NORMALIZE_POSITION | gua::LodLoader::NORMALIZE_SCALE | gua::LodLoader::MAKE_PICKABLE);
//load a sample mesh-based lod model
auto mlod_node = lod_loader.load_lod_trimesh(
//"tri_mesh",
"/opt/3d_models/lamure/mlod/xyzrgb_dragon_7219k.bvh",
//plod_rough,
gua::LodLoader::NORMALIZE_POSITION | gua::LodLoader::NORMALIZE_SCALE/* | gua::LodLoader::MAKE_PICKABLE*/
);
mlod_node->set_error_threshold(0.25);
//setup scenegraph
gua::SceneGraph graph("main_scenegraph");
auto scene_transform = graph.add_node<gua::node::TransformNode>("/", "transform");
auto mlod_transform = graph.add_node<gua::node::TransformNode>("/transform", "mlod_transform");
auto plod_transform = graph.add_node<gua::node::TransformNode>("/transform", "plod_transform");
graph.add_node("/transform/mlod_transform", mlod_node);
graph.add_node("/transform/plod_transform", plod_node);
mlod_transform->translate(-0.4, 0.0, 0.0);
plod_transform->rotate(180.0, 0.0, 1.0, 0.0);
plod_transform->translate(0.3, 0.08, 0.0);
//create a lightsource
auto light_transform = graph.add_node<gua::node::TransformNode>("/transform", "light_transform");
auto light = graph.add_node<gua::node::LightNode>("/transform/light_transform", "light");
light->data.set_type(gua::node::LightNode::Type::POINT);
light->data.set_enable_shadows(false);
light->data.set_shadow_map_size(4096);
light->data.brightness = 5.0f;
light->translate(0.f, 0.2f, 0.f);
light->scale(4.f);
light->translate(0.f, 0.f, 1.f);
auto screen = graph.add_node<gua::node::ScreenNode>("/", "screen");
screen->data.set_size(gua::math::vec2(1.92f, 1.08f));
screen->translate(0, 0, 1.0);
//add mouse interaction
scm::gl::trackball_manipulator trackball;
trackball.transform_matrix()*scm::math::make_translation(0.01f, 0.002f, 0.2f);
trackball.dolly(0.2f);
float dolly_sens = 1.5f;
gua::math::vec2 trackball_init_pos(0.f);
gua::math::vec2 last_mouse_pos(0.f);
int button_state = -1;
//setup rendering pipeline and window
auto resolution = gua::math::vec2ui(1920, 1080);
auto camera = graph.add_node<gua::node::CameraNode>("/screen", "cam");
camera->translate(0.0f, 0, 2.5f);
camera->config.set_resolution(resolution);
//use close near plane to allow inspection of details
//camera->config.set_near_clip(0.01f);
//camera->config.set_far_clip(200.0f);
camera->config.set_screen_path("/screen");
camera->config.set_scene_graph_name("main_scenegraph");
camera->config.set_output_window_name("main_window");
camera->config.set_enable_stereo(true);
auto PLod_Pass = std::make_shared<gua::PLodPassDescription>();
auto pipe = std::make_shared<gua::PipelineDescription>();
pipe->add_pass(std::make_shared<gua::MLodPassDescription>());
pipe->add_pass(PLod_Pass);
pipe->add_pass(std::make_shared<gua::BBoxPassDescription>());
pipe->add_pass(std::make_shared<gua::LightVisibilityPassDescription>());
pipe->add_pass(std::make_shared<gua::ResolvePassDescription>());
pipe->add_pass(std::make_shared<gua::DebugViewPassDescription>());
camera->set_pipeline_description(pipe);
pipe->get_resolve_pass()->tone_mapping_exposure(1.f);
pipe->get_resolve_pass()->tone_mapping_method(gua::ResolvePassDescription::ToneMappingMethod::UNCHARTED);
pipe->get_resolve_pass()->background_mode(gua::ResolvePassDescription::BackgroundMode::SKYMAP_TEXTURE);
pipe->get_resolve_pass()->background_texture("data/textures/envlightmap.jpg");
//init window and window behaviour
auto window = std::make_shared<gua::GlfwWindow>();
gua::WindowDatabase::instance()->add("main_window", window);
window->config.set_enable_vsync(false);
window->config.set_size(resolution);
window->config.set_resolution(resolution);
window->config.set_stereo_mode(gua::StereoMode::MONO);
window->on_resize.connect([&](gua::math::vec2ui const& new_size) {
window->config.set_resolution(new_size);
camera->config.set_resolution(new_size);
screen->data.set_size(gua::math::vec2(0.001 * new_size.x, 0.001 * new_size.y));
});
//trackball controls
bool drag_mode = false;
window->on_move_cursor.connect([&](gua::math::vec2 const& pos) {
float nx = 2.f * float(pos.x - (resolution.x/2))/float(resolution.x);
float ny = -2.f * float(resolution.y - pos.y - (resolution.y/2))/float(resolution.y);
if (button_state != -1) {
if (drag_mode) {
auto ssize = screen->data.get_size();
gua::math::vec3 trans = gua::math::vec3(ssize.x *(nx - last_mouse_pos.x), ssize.y * (ny - last_mouse_pos.y), 0.f);
auto object_trans = scm::math::inverse(screen->get_world_transform()) * mlod_transform->get_world_transform();
mlod_transform->set_world_transform(screen->get_world_transform() * scm::math::make_translation(trans) * object_trans);
}
else {
if (button_state == 0) { // left
trackball.rotation(trackball_init_pos.x, trackball_init_pos.y, nx, ny);
}
if (button_state == 1) { // right
trackball.dolly(dolly_sens*0.5f * (ny - trackball_init_pos.y));
}
if (button_state == 2) { // middle
float f = dolly_sens < 1.0f ? 0.02f : 0.3f;
trackball.translation(f*(nx - trackball_init_pos.x), f*(ny - trackball_init_pos.y));
}
trackball_init_pos.x = nx;
trackball_init_pos.y = ny;
}
}
last_mouse_pos.x = nx;
last_mouse_pos.y = ny;
});
window->on_button_press.connect([&](int mousebutton, int action, int mods) {
if (action == 1) {
drag_mode = mods == 1;
trackball_init_pos = last_mouse_pos;
button_state = mousebutton;
} else
button_state = -1;
});
window->on_key_press.connect(std::bind([&](gua::PipelineDescription& pipe, gua::SceneGraph& graph, int key, int scancode, int action, int mods) {
if (action == 0) return;
switch (std::tolower(key)) {
case '1':
PLod_Pass->mode(gua::PLodPassDescription::SurfelRenderMode::HQ_TWO_PASS);
PLod_Pass->touch();
break;
case '2':
PLod_Pass->mode(gua::PLodPassDescription::SurfelRenderMode::HQ_LINKED_LIST);
PLod_Pass->touch();
break;
default:
break;
}
},
std::ref(*(camera->get_pipeline_description())),
std::ref(graph),
std::placeholders::_1,
std::placeholders::_2,
std::placeholders::_3,
std::placeholders::_4));
window->open();
gua::Renderer renderer;
//application loop
gua::events::MainLoop loop;
gua::events::Ticker ticker(loop, 1.0 / 500.0);
ticker.on_tick.connect([&]() {
screen->set_transform(scm::math::inverse(gua::math::mat4(trackball.transform_matrix())));
light->rotate(0.1, 0.f, 1.f, 0.f);
window->process_events();
if (window->should_close()) {
renderer.stop();
window->close();
loop.stop();
}
else {
renderer.queue_draw({ &graph });
std::cout << "FPS: " << window->get_rendering_fps() << " Frametime: " << 1000.f / window->get_rendering_fps() << std::endl;
}
});
loop.start();
return 0;
}
int main(int argc, char** argv)
{
// initialize guacamole
gua::init(argc, argv);
// setup scene
gua::SceneGraph graph("main_scenegraph");
gua::math::vec4 iron(0.560, 0.570, 0.580, 1);
gua::math::vec4 silver(0.972, 0.960, 0.915, 1);
gua::math::vec4 aluminium(0.913, 0.921, 0.925, 1);
gua::math::vec4 gold(1.000, 0.766, 0.336, 1);
gua::math::vec4 copper(0.955, 0.637, 0.538, 1);
gua::math::vec4 chromium(0.550, 0.556, 0.554, 1);
gua::math::vec4 nickel(0.660, 0.609, 0.526, 1);
gua::math::vec4 titanium(0.542, 0.497, 0.449, 1);
gua::math::vec4 cobalt(0.662, 0.655, 0.634, 1);
gua::math::vec4 platinum(0.672, 0.637, 0.585, 1);
auto pbrMat(gua::MaterialShaderDatabase::instance()->lookup("gua_default_material")->make_new_material());
// pbrMat.set_uniform("Color", chromium);
// pbrMat.set_uniform("Roughness", 0.2f);
// pbrMat.set_uniform("Metalness", 1.0f);
std::string directory("/opt/3d_models/Cerberus_by_Andrew_Maximov/Textures/");
pbrMat->set_uniform("ColorMap", directory + "Cerberus_A.tga");
pbrMat->set_uniform("MetalnessMap", directory + "Cerberus_M.tga");
pbrMat->set_uniform("RoughnessMap", directory + "Cerberus_R.tga");
pbrMat->set_uniform("NormalMap", directory + "Cerberus_N.negated_green.tga");
gua::TriMeshLoader loader;
auto transform = graph.add_node<gua::node::TransformNode>("/", "transform");
auto cerberus(loader.create_geometry_from_file(
"cerberus", "/opt/3d_models/Cerberus_by_Andrew_Maximov/Cerberus_LP.3ds", pbrMat, gua::TriMeshLoader::NORMALIZE_POSITION | gua::TriMeshLoader::NORMALIZE_SCALE));
graph.add_node("/transform", cerberus);
cerberus->set_draw_bounding_box(true);
cerberus->rotate(90, 0.f, 1.f, 0.f);
cerberus->rotate(90, 0.f, 0.f, 1.f);
auto pointLight = graph.add_node<gua::node::LightNode>("/", "pointLight");
pointLight->data.set_type(gua::node::LightNode::Type::POINT);
pointLight->data.color = gua::utils::Color3f(1.0f, 1.0f, 1.0f);
pointLight->data.brightness = 150.0f; // lm
pointLight->scale(9.f);
pointLight->translate(-2.f, 3.f, 5.f);
auto screen = graph.add_node<gua::node::ScreenNode>("/", "screen");
screen->data.set_size(gua::math::vec2(1.92f, 1.08f));
screen->translate(0, 0, 1.0);
// add mouse interaction
gua::utils::Trackball trackball(0.01, 0.002, 0.2);
// setup rendering pipeline and window
// auto resolution = gua::math::vec2ui(1920, 1080);
auto resolution = gua::math::vec2ui(2560, 1440);
std::string skymaps_dir("/opt/guacamole/resources/skymaps/");
for(auto const& file : {std::string(directory + "Cerberus_A.tga"),
std::string(directory + "Cerberus_M.tga"),
std::string(directory + "Cerberus_R.tga"),
std::string(directory + "Cerberus_N.negated_green.tga"),
std::string(skymaps_dir + "skymap.jpg")})
{
gua::TextureDatabase::instance()->load(file);
}
auto tiledPipe(std::make_shared<gua::PipelineDescription>());
tiledPipe->add_pass(std::make_shared<gua::TriMeshPassDescription>());
tiledPipe->add_pass(std::make_shared<gua::LightVisibilityPassDescription>());
tiledPipe->add_pass(std::make_shared<gua::ResolvePassDescription>());
auto camera = graph.add_node<gua::node::CameraNode>("/screen", "cam");
camera->translate(0, 0, 2.0);
camera->config.set_resolution(resolution);
camera->config.set_screen_path("/screen");
camera->config.set_scene_graph_name("main_scenegraph");
camera->config.set_output_window_name("main_window");
camera->config.set_enable_stereo(false);
camera->set_pipeline_description(tiledPipe);
auto window = std::make_shared<gua::GlfwWindow>();
gua::WindowDatabase::instance()->add("main_window", window);
window->config.set_enable_vsync(false);
window->config.set_size(resolution);
window->config.set_resolution(resolution);
window->config.set_stereo_mode(gua::StereoMode::MONO);
window->on_resize.connect([&](gua::math::vec2ui const& new_size) {
window->config.set_resolution(new_size);
camera->config.set_resolution(new_size);
screen->data.set_size(gua::math::vec2(0.001 * new_size.x, 0.001 * new_size.y));
});
window->on_move_cursor.connect([&](gua::math::vec2 const& pos) { trackball.motion(pos.x, pos.y); });
window->on_button_press.connect(std::bind(mouse_button, std::ref(trackball), std::placeholders::_1, std::placeholders::_2, std::placeholders::_3));
window->open();
gua::Renderer renderer;
// application loop
gua::events::MainLoop loop;
gua::events::Ticker ticker(loop, 1.0 / 500.0);
size_t ctr{};
ticker.on_tick.connect([&]() {
// apply trackball matrix to object
gua::math::mat4 modelmatrix = scm::math::make_translation(gua::math::float_t(trackball.shiftx()), gua::math::float_t(trackball.shifty()), gua::math::float_t(trackball.distance())) *
gua::math::mat4(trackball.rotation());
transform->set_transform(modelmatrix);
if(ctr++ % 150 == 0)
gua::Logger::LOG_WARNING << "Frame time: " << 1000.f / window->get_rendering_fps() << " ms, fps: " << window->get_rendering_fps() << std::endl;
window->process_events();
if(window->should_close())
{
renderer.stop();
window->close();
loop.stop();
}
else
{
renderer.queue_draw({&graph});
}
});
loop.start();
return 0;
}
