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Line 3D         A fine code snippet to create a line in 3D space
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Independent of distance to the camera, it is always visible with one pixel width (unless there is an object in between the line and the camera).

Note: Recent version of Ogre::Material does not have a dispose() method, so if you get a compile error simply remove the line:

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myManualObjectMaterial->dispose();  // dispose pointer, not the material

From the following code

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Ogre::ManualObject* myManualObject =  mSceneMgr->createManualObject("manual1"); 
Ogre::SceneNode* myManualObjectNode = mSceneMgr->getRootSceneNode()->createChildSceneNode("manual1_node"); 
 
// NOTE: The second parameter to the create method is the resource group the material will be added to.
// If the group you name does not exist (in your resources.cfg file) the library will assert() and your program will crash
Ogre::MaterialPtr myManualObjectMaterial = Ogre::MaterialManager::getSingleton().create("manual1Material","General"); 
myManualObjectMaterial->setReceiveShadows(false); 
myManualObjectMaterial->getTechnique(0)->setLightingEnabled(true); 
myManualObjectMaterial->getTechnique(0)->getPass(0)->setDiffuse(0,0,1,0); 
myManualObjectMaterial->getTechnique(0)->getPass(0)->setAmbient(0,0,1); 
myManualObjectMaterial->getTechnique(0)->getPass(0)->setSelfIllumination(0,0,1); 
myManualObjectMaterial->dispose();  // dispose pointer, not the material

 
myManualObject->begin("manual1Material", Ogre::RenderOperation::OT_LINE_LIST); 
myManualObject->position(3, 2, 1); 
myManualObject->position(4, 1, 0); 
// etc 
myManualObject->end(); 
 
myManualObjectNode->attachObject(myManualObject);

See also


Alias: Line3D

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