const float Astronomy::earthShineIntensity(
const t_aTime &aTime
, const float latitude
, const float longitude) const
{
const osg::Vec3f m = moonPosition(aTime, latitude, longitude, false);
const osg::Vec3f s = sunPosition(aTime, latitude, longitude, false);
// ("Multiple Light Scattering" - 1980 - Van de Hulst) and
// ("A Physically-Based Night Sky Model" - 2001 - Wann Jensen et al.) -> the 0.19 is the earth full intensity
const float ep = (_PI - acos(s * (-m))) * 0.5;
const float Eem = 0.19 * 0.5 * (1.0 - sin(ep) * tan(ep) * log(1.0 / tan(ep * 0.5)));
return Eem;
}
void OgreApplication::createScene(std::list<std::shared_ptr<OgreActor> > actors)
{
mSceneMgr->setAmbientLight(Ogre::ColourValue(0, 0, 0));
mSceneMgr->setShadowTechnique(Ogre::SHADOWTYPE_STENCIL_ADDITIVE);
for(std::shared_ptr<OgreActor> actor : actors){
addActor(actor);
}
Ogre::Plane plane(Ogre::Vector3::UNIT_Y, 0);
Ogre::MeshManager::getSingleton().createPlane("ground", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
plane, 1500, 1500, 20, 20, true, 1, 500, 500, Ogre::Vector3::UNIT_Z);
Ogre::Entity* entGround = mSceneMgr->createEntity("GroundEntity", "ground");
mSceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(entGround);
entGround->setMaterialName("Examples/Rockwall");
entGround->setCastShadows(false);
Ogre::Light* directionalLight = mSceneMgr->createLight("directionalLight");
directionalLight->setType(Ogre::Light::LT_DIRECTIONAL);
directionalLight->setDiffuseColour(Ogre::ColourValue(0.75, 0.75, 0.75));
directionalLight->setSpecularColour(Ogre::ColourValue(1.0, 1.0, 1.0));
directionalLight->setDirection(Ogre::Vector3( 0, -1, -1 ));
Ogre::Vector3 sunPosition(15, 15, -90);
Ogre::Light* pointLight = mSceneMgr->createLight("pointLight");
pointLight->setType(Ogre::Light::LT_POINT);
pointLight->setPosition(sunPosition);
pointLight->setDiffuseColour(1.0, 1.0, 1.0);
pointLight->setSpecularColour(1.0, 1.0, 1.0);
Ogre::SceneNode *sunNode = mSceneMgr->getRootSceneNode()->createChildSceneNode("SUN_NODE");
sunNode->setPosition(sunPosition);
sunNode->attachObject(mSceneMgr->createParticleSystem("SUN_PARTICLE", "Space/Sun"));
}
int main(int argc, char** argv) {
Engine* engine = new Engine();
if(!engine->init()) {
std::cout << "Engine initialization failed\n";
return 1;
}
engine->getShaderManager()->createProgram("mainShader", "Shaders/VertexShader.glsl", "Shaders/FragmentShader.glsl");
GLuint program = engine->getShaderManager()->getProgram("mainShader");
if(program == 0) {
std::cout << "Program initialization failed\n";
return 2;
}
engine->getSceneManager()->setProgram(program);
Skybox* skybox = new Skybox();
skybox->create(40.0f);
skybox->setRotation(glm::vec3(0.0f, 180.0f, 0.0f));
skybox->addMaterial(0, "Resources/Copyrighted/skybox1.png", 1.0f, 0.0f, 0.0f, 0.0f, engine->getTextureLoader());
engine->getModelManager()->setModel("skybox", skybox);
Cuboid* floorBox = new Cuboid();
floorBox->create(40.0f, 1.0f, 40.0f, glm::vec4(0.24f, 0.267f, 0.337f, 1.0f));
floorBox->setPosition(glm::vec3(0.0f, -8.0f, 0.0f));
engine->getModelManager()->setModel("floorBox", floorBox);
glm::vec3 sunPosition(-8.7f, 20.0f, 11.1f);
engine->getSceneManager()->addLight(0, sunPosition, glm::vec3(1.0), 1.0f, 0.0, 0.0);
Sphere* sun = new Sphere();
sun->create(1.2f, 16, 16, glm::vec4(1.0f, 1.0f, 0.9f, 1.0f));
sun->setBaseMaterial(1.0f, 0.0f, 0.0f, 0.0f);
sun->setPosition(sunPosition);
engine->getModelManager()->setModel("sun", sun);
glm::vec3 lampPosition(8.0f, -1.0f, 5.0f);
engine->getSceneManager()->addLight(1, lampPosition, glm::vec3(4.0f, 1.0f, 1.0f), 1.0f, 0.003f, 0.0005f);
Sphere* lamp = new Sphere();
lamp->create(0.3f, 16, 16, glm::vec4(1.0f, 0.2f, 0.2f, 1.0f));
lamp->setBaseMaterial(1.0f, 0.0f, 0.0f, 0.0f);
lamp->setPosition(lampPosition);
engine->getModelManager()->setModel("lamp", lamp);
Eel* eel = new Eel();
eel->create(10.0f, 0.5f, 16);
eel->setPosition(glm::vec3(0.0f, 0.0f, 0.0f));
eel->addMaterial(0, "Resources/Copyrighted/scales1_2.png", 0.05f, 0.6f, 3.5f, 12.0f, engine->getTextureLoader());
eel->addMaterial(1, "Resources/Textures/sphere_dots.png", 0.25f, 0.4f, 0.7f, 1.0f, engine->getTextureLoader());
eel->addNormalMap("Resources/Copyrighted/scales1-normal3.png", engine->getTextureLoader());
engine->getModelManager()->setModel("eel", eel);
Sphere* sphere = new Sphere();
sphere->create(1.0f, 24, 48);
sphere->setPosition(glm::vec3(0.0f, -2.0f, 14.0f));
sphere->setRotation(glm::vec3(30.0f, 0.0f, 0.0f));
sphere->setRotationSpeed(glm::vec3(0.0f, 20.0f, 0.0f));
sphere->addMaterial(0, "Resources/Textures/sphere1.bmp", 0.02f, 0.3f, 2.5f, 15.0f, engine->getTextureLoader());
sphere->addMaterial(1, "Resources/Textures/sphere_dots.png", 0.02f, 0.8f, 1.0f, 1.0f, engine->getTextureLoader());
sphere->addNormalMap("Resources/Copyrighted/fish-normal.bmp", engine->getTextureLoader());
engine->getModelManager()->setModel("sphere", sphere);
engine->run();
delete engine;
return 0;
}