void App::createScene()
{
#pragma region Plane
// Define the mathematical plane
Ogre::Plane plane(Vector3::UNIT_Y, 0);
// Create the plane into memory
Ogre::MeshManager::getSingleton().createPlane(
"plane",
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
plane,
500, 500, // size
25, 25, // how many quads are used to make the plane
true,
1, 5, 5, Vector3::UNIT_Z);
// Create an instance of the plane
auto planeEnt = mSceneMgr->createEntity("PlaneEntity", "plane");
planeEnt->setMaterialName("Examples/BeachStones");
// Create a node for the plane and attach he plane to it
mSceneMgr->getRootSceneNode()->createChildSceneNode("planeNode")->attachObject(planeEnt);
#pragma endregion
#pragma region Lights
// Directional
auto sunlight = mSceneMgr->createLight("sun");
sunlight->setType(Ogre::Light::LT_DIRECTIONAL);
sunlight->setDirection(Ogre::Vector3(0, -1, -1));
sunlight->setDiffuseColour(Ogre::ColourValue(.30, .30, 0));
sunlight->setSpecularColour(Ogre::ColourValue(.30, .30, 0));
// Spotlight
auto spotlight = mSceneMgr->createLight("spotlight");
spotlight->setType(Ogre::Light::LT_SPOTLIGHT);
spotlight->setSpotlightRange(
Ogre::Degree(5.0f), // inner angle
Ogre::Degree(15.0f), // outer angle
0.0f); // falloff
spotlight->setDiffuseColour(Ogre::ColourValue(1.0f, 0.0f, 0.0f));
// Sphere to visualize the spotlights source
auto sphereEnt = mSceneMgr->createEntity("sphere", "sphere.mesh");
sphereEnt->setMaterialName("Examples/checker");
auto sphereNode = mSceneMgr->getSceneNode("planeNode")->createChildSceneNode("spotlightNode");
sphereNode->attachObject(sphereEnt);
sphereNode->attachObject(spotlight);
sphereNode->scale(0.02f, 0.02f, 0.02f);
sphereNode->translate(0.0f, 15.0f, 0.0f);
sphereNode->lookAt(Ogre::Vector3(0, 0, 0), Ogre::Node::TS_PARENT);
#pragma endregion
#pragma region Entities
std::array<Ogre::Entity*, 6> entities;
auto entParentNode = mSceneMgr->getSceneNode("planeNode")->createChildSceneNode("entParentNode");
float angleOffset = 360.0f / 6.0f;
float radius = 30.0f;
for (int i = 0; i < entities.size(); ++i)
{
auto e = mSceneMgr->createEntity("Sinbad.mesh");
entParentNode->createChildSceneNode(Ogre::Vector3(
radius * Math::Cos(Math::DegreesToRadians(angleOffset * i)), // x = r cos(t)
6.75f, // y = height
radius * Math::Sin(Math::DegreesToRadians(angleOffset * i)))) // z = r sin(t)
->attachObject(e);
}
// Barrel
auto barrel = mSceneMgr->createEntity("barrel.mesh");
mSceneMgr->getSceneNode("planeNode")->createChildSceneNode("barrel", Ogre::Vector3(0, 2.5f, 0))->attachObject(barrel);
#pragma endregion
// Skybox
mSceneMgr->setSkyBox(true, "Examples/SpaceSkyBox", 5000, false);
}
Node::NodeSP SceneLoader::__loadLight(const QDomElement& og_component, Node::NodeSP dt_node)
{
Node::NodeSP node = dt_node;
if ( !og_component.isNull() )
{
QString name = og_component.attribute(SL_NAME);
if ( node == nullptr )
{
node = mScene->addChildNode(new Node(name + "_node"));
QDomElement pos = og_component.firstChildElement(SL_POS);
QDomElement dir = og_component.firstChildElement(SL_LIGHT_DIRECTION);
node->setPosition(pos.attribute(SL_X).toFloat(), pos.attribute(SL_Y).toFloat(),
pos.attribute(SL_Z).toFloat());
node->setDirection(Ogre::Vector3(dir.attribute(SL_X).toFloat(),
dir.attribute(SL_Y).toFloat(), dir.attribute(SL_Z).toFloat()));
}
//add light component
auto light = node->addComponent<LightComponent>(new LightComponent(name));
auto og_light = light->getOgreLight();
QDomElement colour_diffuse = og_component.firstChildElement(SL_LIGHT_DIFFUSE);
QDomElement colour_specular = og_component.firstChildElement(SL_LIGHT_SPECULAR);
QDomElement light_attenuation = og_component.firstChildElement(SL_LIGHT_ATTENUATION);
//set light attributes
og_light->setDiffuseColour(colour_diffuse.attribute(SL_COLOUR_R).toFloat(),
colour_diffuse.attribute(SL_COLOUR_G).toFloat(),
colour_diffuse.attribute(SL_COLOUR_B).toFloat());
og_light->setSpecularColour(colour_specular.attribute(SL_COLOUR_R).toFloat(),
colour_specular.attribute(SL_COLOUR_G).toFloat(),
colour_specular.attribute(SL_COLOUR_B).toFloat());
og_light->setAttenuation(light_attenuation.attribute(SL_LIGHT_ATTENUATION_RANGE).toFloat(),
light_attenuation.attribute(SL_LIGHT_ATTENUATION_CONSTANT).toFloat(),
light_attenuation.attribute(SL_LIGHT_ATTENUATION_LINEAR).toFloat(),
light_attenuation.attribute(SL_LIGHT_ATTENUATION_QUADRATIC).toFloat());
QString light_type = og_component.attribute(SL_LIGHT_TYPE);
if ( light_type == SL_LIGHT_TYPE_POINT )
{
og_light->setType(Ogre::Light::LT_POINT);
}
else if ( light_type == SL_LIGHT_TYPE_DIRECTIONAL )
{
og_light->setType(Ogre::Light::LT_DIRECTIONAL);
}
else if ( light_type == SL_LIGHT_TYPE_SPOT )
{
og_light->setType(Ogre::Light::LT_SPOTLIGHT);
QDomElement light_range = og_component.firstChildElement(SL_LIGHT_RANGE);
og_light->setSpotlightRange(Ogre::Radian(light_range.attribute(SL_LIGHT_RANGE_INNER).toFloat()),
Ogre::Radian(light_range.attribute(SL_LIGHT_RANGE_OUTER).toFloat()),
light_range.attribute(SL_LIGHT_RANGE_FALLOFF).toFloat());
}
QString cast_shadows = og_component.attribute(SL_CAST_SHADOWS);
if ( cast_shadows == SL_TRUE )
{
light->setCastShadows(true);
}
else if ( cast_shadows == SL_FALSE )
{
light->setCastShadows(false);
}
light->enable();
}
return node;
}
