Ogre 3D 1.7

Time for action — building a field of grass

1. We need several instances of our blades of grass, so convert the manual object into a mesh:

   manual->convertToMesh("BladesOfGrass");
   

2. We want a field of grass which consists of 50 x 50 instances of our grass. So we need two for loops:

   for(int i=0;i<50;i++)
   {
   for(int j=0;j<50;j++)
   {
   

3. Inside the for loops, create a nameless entity and a nameless scene node:

   Ogre::Entity * ent = mSceneMgr->createEntity("BladesOfGrass");
   Ogre::SceneNode* node = mSceneMgr->getRootSceneNode()->createChildSceneNode(Ogre::Vector3(i*3,-10,j*3));
   node->attachObject(ent);
   

4. Don't forget to close the for loops:

   }
   }
   

5. Compile and run the application, and you should see a field of grass. Depending on your computer, this application might be ...