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         GL::DirectionalLight &sun = resources.get<GL::DirectionalLight>("Sun.light");
  39         sky = make_unique<GL::Sky>(content, sun);
  40         sky->set_debug_name("Sky");
  41
  42         shadow_seq = make_unique<GL::Sequence>();
  43         shadow_seq->set_clear_enabled(true);
  44         shadow_seq->set_debug_name("Shadow sequence");
  45         GL::Sequence::Step *step = &shadow_seq->add_step("shadow", content);
  46         step->set_depth_test(GL::LEQUAL);
  47
  48         shadow_map = make_unique<GL::ShadowMap>(8192, *sky, sun, *shadow_seq);
  49         shadow_map->set_debug_name("Shadow map");
  50         shadow_map->set_target(GL::Vector3(0.0f, 0.0f, 0.0f), 20.0f);
  51
  52         GL::SequenceBuilder seq_bld(resources.get<GL::SequenceTemplate>("Desert.seq"));
  53         seq_bld.set_renderable("content", *shadow_map);
  54         seq_bld.set_debug_name("Main sequence");
  55         sequence.reset(seq_bld.build(view));
  56
  57         env_seq = make_unique<GL::Sequence>();
  58         env_seq->set_clear_enabled(true);
  59         env_seq->set_debug_name("Environment sequence");
  60         step = &env_seq->add_step("", *shadow_map);
  61         step->set_lighting(&resources.get<GL::Lighting>("Desert.lightn"));
  62         step->set_depth_test(GL::LEQUAL);
  63
  64         env_map = make_unique<GL::EnvironmentMap>(256, GL::RGB16F, 7, sphere, *env_seq);
  65         env_map->set_debug_name("Environment map");
  66         sphere.set_matrix(GL::Matrix::translation(GL::Vector3(0.0f, 0.0f, 3.3f)));
  67
  68         content.add(resources.get<GL::Scene>("Background.scene"));
  69         content.add(*env_map);
  70
  71         camera.set_debug_name("Main camera");
  72
  73         view.set_content(sequence.get());
  74         view.set_camera(&camera);
  75
  76         const GL::Vector3 &cam_pos = camera.get_position();
  77         camera_distance = cam_pos.norm();
  78         camera_angle = Geometry::atan2(cam_pos.y, cam_pos.x);
  79         camera_base_height = Geometry::atan2(cam_pos.z, cam_pos.slice<2>(0).norm());
  80 }
  81
  82 int DesertPillars::main()
  83 {
  84         window.show();
  85         return Application::main();
  86 }
  87
  88 void DesertPillars::tick()
  89 {
  90         Time::TimeStamp t = Time::now();
  91         Time::TimeDelta dt = (last_tick ? t-last_tick : Time::zero);
  92         last_tick = t;
  93
  94         if(!sphere_frozen)
  95         {
  96                 sphere_morph += dt/Time::sec;
  97                 sphere.set_morph(sphere_morph);
  98         }
  99
 100         if(!sphere_stopped)
 101         {
 102                 sphere_angle += Geometry::Angle<float>::from_degrees(36*dt/Time::sec);
 103                 sphere.set_matrix(GL::Matrix().translate(GL::Vector3(0.0f, 0.0f, 3.3f))
 104                         .rotate(sphere_angle, GL::Vector3(0.0f, 0.0f, 1.0f)).rotate(sphere_angle*0.5f, GL::Vector3(1.0f, 0.0f, 0.0f)));
 105         }
 106
 107         if(!camera_stopped)
 108         {
 109                 camera_angle += Geometry::Angle<float>::from_degrees(12*dt/Time::sec);
 110                 Geometry::Angle<float> cam_height = camera_base_height+Geometry::Angle<float>::from_degrees(15.0f*cos(camera_angle*1.5f));
 111                 GL::Vector3 cam_dir(cos(camera_angle)*cos(cam_height), sin(camera_angle)*cos(cam_height), sin(cam_height));
 112                 camera.set_position(GL::Vector3(0.0f, 0.0f, 2.0f)+cam_dir*camera_distance);
 113                 camera.set_look_direction(-cam_dir);
 114         }
 115
 116         display.tick();
 117         view.render();
 118 }
 119
 120 void DesertPillars::key_press(unsigned key)
 121 {
 122         if(key==Input::KEY_ESC)
 123                 exit(0);
 124         else if(key==Input::KEY_SPACE)
 125                 camera_stopped = !camera_stopped;
 126         else if(key==Input::KEY_F)
 127                 sphere_frozen = !sphere_frozen;
 128         else if(key==Input::KEY_S)
 129                 sphere_stopped = !sphere_stopped;
 130 }
 131
 132
 133 DesertPillars::Resources::Resources()
 134 {
 135         FS::Path base_dir = FS::get_sys_data_dir()/"demos"/"desertpillars"/"data";
 136         source.add_directory(base_dir);
 137         source.add_directory(base_dir/"textures");
 138         source.add_directory(base_dir/"exported");
 139         add_source(source);
 140 }
 141
 142
 143 void DesertPillars::MorphSphere::set_morph(float m)
 144 {
 145         shdata.uniform("morph", m);
 146 }
 147
 148 void DesertPillars::MorphSphere::setup_render(GL::Renderer &renderer, GL::Tag tag) const
 149 {
 150         ObjectInstance::setup_render(renderer, tag);
 151         renderer.add_shader_data(shdata);
 152 }