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