demos/desertpillars/source/desertpillars.cpp

   1 #include <msp/fs/dir.h>
   2 #include <msp/gl/directionallight.h>
   3 #include <msp/gl/sequencebuilder.h>
   4 #include <msp/gl/renderer.h>
   5 #include <msp/gl/tests.h>
   6 #include <msp/input/keys.h>
   7 #include <msp/time/utils.h>
   8 #include "desertpillars.h"
   9
  10 using namespace std;
  11 using namespace Msp;
  12
  13 DesertPillars::Options::Options()
  14 {
  15         wnd_opts.width = 1920;
  16         wnd_opts.height = 1080;
  17         gl_opts.gl_version_major = Graphics::GLOptions::LATEST_VERSION;
  18         gl_opts.core_profile = true;
  19 }
  20
  21
  22 DesertPillars::DesertPillars(int, char **):
  23         window(display, opts.wnd_opts),
  24         gl_ctx(window, opts.gl_opts),
  25         keyboard(window),
  26         view(window, gl_ctx),
  27         camera(resources.get<GL::Camera>("Camera.camera")),
  28         sphere(resources.get<GL::Object>("Sphere.object")),
  29         sphere_morph(0.0f),
  30         sphere_frozen(false),
  31         sphere_stopped(false),
  32         camera_stopped(false)
  33 {
  34         window.set_title("Desert Pillars");
  35         window.signal_close.connect(sigc::bind(sigc::mem_fun(this, &DesertPillars::exit), 0));
  36         keyboard.signal_button_press.connect(sigc::bind_return(sigc::mem_fun(this, &DesertPillars::key_press), false));
  37
  38         env_seq = make_unique<GL::Sequence>();
  39         env_seq->set_clear_enabled(true);
  40         env_seq->set_debug_name("Environment sequence");
  41
  42         global_env = make_unique<GL::EnvironmentMap>(32, GL::RGB16F, 2, content, *env_seq);
  43         global_env->set_fixed_position(GL::Vector3(0.0f, 0.0f, 0.0f));
  44         global_env->set_debug_name("Global environment");
  45
  46         GL::DirectionalLight &sun = resources.get<GL::DirectionalLight>("Sun.light");
  47         sky = make_unique<GL::Sky>(*global_env, sun);
  48         sky->set_debug_name("Sky");
  49
  50         shadow_seq = make_unique<GL::Sequence>();
  51         shadow_seq->set_clear_enabled(true);
  52         shadow_seq->set_debug_name("Shadow sequence");
  53         GL::Sequence::Step *step = &shadow_seq->add_step("shadow", content);
  54         step->set_depth_test(GL::LEQUAL);
  55
  56         shadow_map = make_unique<GL::ShadowMap>(8192, *sky, sun, *shadow_seq);
  57         shadow_map->set_debug_name("Shadow map");
  58         shadow_map->set_target(GL::Vector3(0.0f, 0.0f, 0.0f), 20.0f);
  59
  60         GL::SequenceBuilder seq_bld(resources.get<GL::SequenceTemplate>("Desert.seq"));
  61         seq_bld.set_renderable("content", *shadow_map);
  62         seq_bld.set_debug_name("Main sequence");
  63         sequence.reset(seq_bld.build(view));
  64
  65         step = &env_seq->add_step("", *shadow_map);
  66         step->set_lighting(&resources.get<GL::Lighting>("Desert.lightn"));
  67         step->set_depth_test(GL::LEQUAL);
  68
  69         env_map = make_unique<GL::EnvironmentMap>(256, GL::RGB16F, 7, sphere, *env_seq);
  70         env_map->set_debug_name("Environment map");
  71         sphere.set_matrix(GL::Matrix::translation(GL::Vector3(0.0f, 0.0f, 3.3f)));
  72
  73         content.add(resources.get<GL::Scene>("Background.scene"));
  74         content.add(*env_map);
  75
  76         camera.set_debug_name("Main camera");
  77
  78         view.set_content(sequence.get());
  79         view.set_camera(&camera);
  80
  81         const GL::Vector3 &cam_pos = camera.get_position();
  82         camera_distance = cam_pos.norm();
  83         camera_angle = Geometry::atan2(cam_pos.y, cam_pos.x);
  84         camera_base_height = Geometry::atan2(cam_pos.z, cam_pos.slice<2>(0).norm());
  85 }
  86
  87 int DesertPillars::main()
  88 {
  89         window.show();
  90         return Application::main();
  91 }
  92
  93 void DesertPillars::tick()
  94 {
  95         Time::TimeStamp t = Time::now();
  96         Time::TimeDelta dt = (last_tick ? t-last_tick : Time::zero);
  97         last_tick = t;
  98
  99         if(!sphere_frozen)
 100         {
 101                 sphere_morph += dt/Time::sec;
 102                 sphere.set_morph(sphere_morph);
 103         }
 104
 105         if(!sphere_stopped)
 106         {
 107                 sphere_angle += Geometry::Angle<float>::from_degrees(36*dt/Time::sec);
 108                 sphere.set_matrix(GL::Matrix().translate(GL::Vector3(0.0f, 0.0f, 3.3f))
 109                         .rotate(sphere_angle, GL::Vector3(0.0f, 0.0f, 1.0f)).rotate(sphere_angle*0.5f, GL::Vector3(1.0f, 0.0f, 0.0f)));
 110         }
 111
 112         if(!camera_stopped)
 113         {
 114                 camera_angle += Geometry::Angle<float>::from_degrees(12*dt/Time::sec);
 115                 Geometry::Angle<float> cam_height = camera_base_height+Geometry::Angle<float>::from_degrees(15.0f*cos(camera_angle*1.5f));
 116                 GL::Vector3 cam_dir(cos(camera_angle)*cos(cam_height), sin(camera_angle)*cos(cam_height), sin(cam_height));
 117                 camera.set_position(GL::Vector3(0.0f, 0.0f, 2.0f)+cam_dir*camera_distance);
 118                 camera.set_look_direction(-cam_dir);
 119         }
 120
 121         display.tick();
 122         view.render();
 123 }
 124
 125 void DesertPillars::key_press(unsigned key)
 126 {
 127         if(key==Input::KEY_ESC)
 128                 exit(0);
 129         else if(key==Input::KEY_SPACE)
 130                 camera_stopped = !camera_stopped;
 131         else if(key==Input::KEY_F)
 132                 sphere_frozen = !sphere_frozen;
 133         else if(key==Input::KEY_S)
 134                 sphere_stopped = !sphere_stopped;
 135 }
 136
 137
 138 DesertPillars::Resources::Resources()
 139 {
 140         FS::Path base_dir = FS::get_sys_data_dir()/"demos"/"desertpillars"/"data";
 141         source.add_directory(base_dir);
 142         source.add_directory(base_dir/"textures");
 143         source.add_directory(base_dir/"exported");
 144         add_source(source);
 145 }
 146
 147
 148 void DesertPillars::MorphSphere::set_morph(float m)
 149 {
 150         shdata.uniform("morph", m);
 151 }
 152
 153 void DesertPillars::MorphSphere::setup_render(GL::Renderer &renderer, GL::Tag tag) const
 154 {
 155         ObjectInstance::setup_render(renderer, tag);
 156         renderer.add_shader_data(shdata);
 157 }