Cainiao also learns ogre-camera light projection

Settings of light, shadow, and camera in ogre
1. To enable shadow, first call scenemanager: setshadowtechnique () and then call entity: setcastshadows () for the entity to be enabled ().
2. The lights and cameras must be created by scenemanager, which are scenemanager: createlight () and scenemanager: createcamera ().
3. you can create multiple cameras to manage ogre: viewport * Vp = mwindow-> addviewport (mcamera) with the view, and set the background color of the view using setbackgroundcolour ().
The main code is as follows:
Void tutorialapplication: createscene (void)
{
// Set the environment light to black
Mscenemgr-> setambientlight (Ogre: colourvalue (0, 0, 0 ));
// Set the projection type
Mscenemgr-> setshadowtechnique (Ogre: shadowtype_stencil_additive );
// Create an entity
Ogre: entity * entninja = mscenemgr-> createentity ("ninja", "ninja. mesh ");
// Set whether to project
Entninja-> setcastshadows (true );
Mscenemgr-> getrootscenenode ()-> createchildscenenode ()-> attachobject (entninja );
// Create a plane
Ogre: plane (Ogre: vector3: unit_y, 0 );
Ogre: meshmanager: getsingleton (). createplane ("Ground", ogre: resourcegroupmanager: default_resource_group_name,
Plane, 1500,150 0, 20, 20, true, 1, 5, 5, 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 * pointlight = mscenemgr-> createlight ("pointlight ");
Pointlight-> settype (Ogre: Light: lt_point );
Pointlight-> setposition (Ogre: vector3 (0,150,250 ));

Pointlight-> setdiffusecolour (1.0, 0.0, 0.0 );
Pointlight-> setspecularcolour (1.0, 0.0, 0.0 );

Ogre: light * directionallight = mscenemgr-> createlight ("directionallight ");
Directionallight-> settype (Ogre: Light: lt_directional );
Directionallight-> setdiffusecolour (Ogre: colourvalue (. 25,. 25, 0 ));
Directionallight-> setspecularcolour (Ogre: colourvalue (. 25,. 25, 0 ));

Directionallight-> setdirection (Ogre: vector3 (0,-1, 1 ));

Ogre: light * spotlight = mscenemgr-> createlight ("spotlight ");
Spotlight-> settype (Ogre: Light: lt_spotlight );
Spotlight-> setdiffusecolour (0, 0, 1.0 );
Spotlight-> setspecularcolour (0, 0, 1.0 );

Spotlight-> setdirection (-1,-1, 0 );
Spotlight-> setposition (Ogre: vector3 (300,300, 0 ));

Spotlight-> setspotlightrange (Ogre: Degree (35), ogre: Degree (50 ));
}
Void tutorialapplication: createcamera ()
{
// Create a camera
Mcamera = mscenemgr-> createcamera ("playercam ");
// Set the camera position
Mcamera-> setposition (Ogre: vector3 (500 ));
// Set the camera orientation
Mcamera-> lookat (Ogre: vector3 (0, 0 ));
// Sets the visible distance of the camera.
Mcamera-> setnearclipdistance (5 );
// Create a skdcamera
Mcameraman = new ogrebites: sdkcameraman (mcamera );
}

Void tutorialapplication: createviewports ()
{
// Create a view
Ogre: viewport * Vp = mwindow-> addviewport (mcamera );
// Set the background color of the view.
VP-> setbackgroundcolour (Ogre: colourvalue (0, 0 ));
// Set the camera display ratio of the view.
Mcamera-> setaspectratio (Ogre: Real (VP-> getactualwidth ()/ogre: Real (VP-> getactualheight ()));
}

Remember to modify resources. cfg and locate the resource search directory to the Media Directory of the source code sample. Otherwise, the compilation will prompt that the file cannot be found.

Running effect:

2012-7-14