[Ogre]纹理设置

MaterialPtr material= MaterialManager::getSingleton().create("name",“ResourcesGroupName”);
material->getTechnique(0)->getPass(0)->createTextureUnitState(”TextureFilename“);

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);

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();