Ogre手动绘制模型以及添加材质

1.用Ogre来绘制一个立方体
ManualObject* cube; 
cube = mSceneMgr->createManualObject("cube"); 
cube->begin("cubeMaterial"); 
// 顶点 
cube->position( -100, -100, -100); //0 
cube->colour(0.0, 0.0, 0.0);
cube->position( 100, -100, -100); //1 
cube->colour(1.0, 0.0, 0.0); 
cube->position( 100, -100, 100); //2 
cube->colour(1.0, 0.0, 1.0); 
cube->position( -100, -100, 100); //3 
cube->colour(0.0, 0.0, 1.0); 
cube->position( -100, 100, -100); //4 
cube->colour(0.0, 1.0, 0.0); 
cube->position( 100, 100, -100); //5 
cube->colour(1.0, 1.0, 0.0); 
cube->position( 100, 100, 100); //6 
cube->colour(1.0, 1.0, 1.0); 
cube->position( -100, 100, 100); //7 
cube->colour(0.0, 1.0, 1.0); 
索引 cube->triangle(0, 2, 1); 
cube->triangle(0, 2, 3); 
cube->triangle(3, 4, 0); 
cube->triangle(3, 7, 4); 
cube->triangle(4, 7, 6); 
cube->triangle(4, 6, 5); 
cube->triangle(5, 2, 1); 
cube->triangle(5, 6, 2); 
cube->triangle(0, 4, 1); 
cube->triangle(5, 1, 4); 
cube->triangle(3, 6, 7); 
cube->triangle(3, 2, 6); 
cube->end(); 
SceneNode* sn = mSceneMgr->getRootSceneNode()->createChildSceneNode(); sn->attachObject(cube);
 
 
2.在上个立方体的基础上加上6个贴图
// 创建六个纹理 
MaterialPtr material = MaterialManager::getSingletonPtr()->create("q", "General"); 
material->getTechnique(0)->getPass(0)->createTextureUnitState("q.jpg"); 
material = MaterialManager::getSingletonPtr()->create("a", "General"); 
material->getTechnique(0)->getPass(0)->createTextureUnitState("a.jpg"); 
material = MaterialManager::getSingletonPtr()->create("z", "General"); 
material->getTechnique(0)->getPass(0)->createTextureUnitState("z.jpg"); 
material = MaterialManager::getSingletonPtr()->create("x", "General"); 
material->getTechnique(0)->getPass(0)->createTextureUnitState("x.jpg"); 
material = MaterialManager::getSingletonPtr()->create("s", "General"); 
material->getTechnique(0)->getPass(0)->createTextureUnitState("s.jpg"); 
material = MaterialManager::getSingletonPtr()->create("w", "General"); 
material->getTechnique(0)->getPass(0)->createTextureUnitState("w.jpg"); 
ManualObject* cube; cube = mSceneMgr->createManualObject("cube"); 
/// 下面, begin的第一个参数为要设置的材质名称 
cube->begin("q", RenderOperation::OT_TRIANGLE_FAN); 
cube->position( -100, -100, -100); //0 
cube->textureCoord(1, 0);
 cube->position( 100, -100, -100); //1 
cube->textureCoord(0, 0); 
cube->position( 100, -100, 100); //2 
cube->textureCoord(0, 1); 
cube->position( -100, -100, 100); //3 
cube->textureCoord(1, 1); 
cube->end(); 
/// 左面 
cube->begin("a", RenderOperation::OT_TRIANGLE_FAN); 
cube->position( -100, -100, 100); //3 
cube->textureCoord(1, 0); 
cube->position( -100, 100, 100); //7 
cube->textureCoord(0, 0); 
cube->position( -100, 100, -100); //4 
cube->textureCoord(0, 1); 
cube->position( -100, -100, -100); //0 
cube->textureCoord(1, 1); 
cube->end(); 
/// 上面 
cube->begin("z", RenderOperation::OT_TRIANGLE_FAN); 
cube->position( -100, 100, -100); //4 
cube->textureCoord(1, 0); 
cube->position( -100, 100, 100); //7 
cube->textureCoord(0, 0); 
cube->position( 100, 100, 100); //6 
cube->textureCoord(0, 1); 
cube->position( 100, 100, -100); //5 
cube->textureCoord(1, 1);
cube->end(); 
/// 右面 
cube->begin("x", RenderOperation::OT_TRIANGLE_FAN); 
cube->position( 100, -100, -100); //1 
cube->textureCoord(1, 0); 
cube->position( 100, 100, -100); //5 
cube->textureCoord(0, 0); 
cube->position( 100, 100, 100); //6 
cube->textureCoord(0, 1); 
cube->position( 100, -100, 100); //2 
cube->textureCoord(1, 1); 
cube->end(); 
/// 前面 
cube->begin("s", RenderOperation::OT_TRIANGLE_FAN); 
cube->position( 100, -100, -100); //1 
cube->textureCoord(1, 0); 
cube->position( -100, -100, -100); //0 
cube->textureCoord(0, 0); 
cube->position( -100, 100, -100); //4 
cube->textureCoord(0, 1); 
cube->position( 100, 100, -100); //5 
cube->textureCoord(1, 1); 
cube->end(); 
/// 后面 
cube->begin("w", RenderOperation::OT_TRIANGLE_FAN); 
cube->position( 100, -100, 100); //2 
cube->textureCoord(1, 0); 
cube->position( 100, 100, 100); //6 
cube->textureCoord(0, 0); 
cube->position( -100, 100, 100); //7 
cube->textureCoord(0, 1); 
cube->position( -100, -100, 100); //3 
cube->textureCoord(1, 1); 
cube->end();