用Bliiboard 創建示意性點到點波型

 

billboard = ObjectBillboards::create();
int num = billboard->addBillboord(1,1) ;
billboard->setPosition(Vec3( 0, 0, 2));
billboard->setWic/tb(num,10.0f);
billboard->setHeigbt(num,200);
MaterialPtr material = Materials::get()->findMaterial ("radarl") ;
int parameter Id = material->finc/Parameter("basf_transform");
float time = Game::get()->getime();
float X = 1.0f;
float Y = 20.0f;;
float F = -10;
float A = 0.0f;
float V = 5.0f;
float R = 0.0f;
int id = material->getPorometer(parameterId) ;
material->setPorameter(parameterId,vec4(X,Y,sinf(time*F)*A+time*V*sinf(R) ,cosf(time*F)*A+time*V*cosf(R)));
billboard->setMaterial(material, "*");

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