demos/desertpillars/source/desertpillars.cpp

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