[solved (no bug)] BoundingBox bug?

[moriwo]

I discovered the strangeness of boundingbox.

When octree node is added, boundingbox doesn't follow to the position of
the character node.

Is this a Irrlicht bug?

this worked correctly.

Code: Select all

/*	//create ground mesh
	IAnimatedMesh* mesh = Scene->getMesh("ground.x");
	ISceneNode* otNode = Scene->addOctTreeSceneNode(mesh->getMesh(0));
	ITriangleSelector* selector= Scene->createOctTreeTriangleSelector(mesh,otNode,32);
	otNode->setTriangleSelector(selector);
	otNode->setPosition(vector3df(3,0,-3));
*/

	//create character mesh 
	IAnimatedMesh* charMesh = Scene->getMesh("mypc.x"); 
	IAnimatedMeshSceneNode* charNode = Scene->addAnimatedMeshSceneNode(charMesh); 
	charNode->setAnimationSpeed(5000); 

	while(Device->run()) 
	{   
		charNode->setPosition(charNode->getPosition() + vector3df(0,0,0.01f));
		charNode->getMesh()->getMeshBuffer(0)->recalculateBoundingBox();
		aabbox3df aabb = charNode->getMesh()->getMeshBuffer(0)->getBoundingBox();

		//render 
		Driver->beginScene(true, true, SColor(0,100,100,160)); 
		Scene->drawAll(); 
		Driver->draw3DBox(aabb);
		Driver->endScene(); 
	} 

This did not work correctly.
The difference only added octreenode.

Code: Select all

	//create ground mesh
	IAnimatedMesh* mesh = Scene->getMesh("ground.x");
	ISceneNode* otNode = Scene->addOctTreeSceneNode(mesh->getMesh(0));
	ITriangleSelector* selector= Scene->createOctTreeTriangleSelector(mesh,otNode,32);
	otNode->setTriangleSelector(selector);
	otNode->setPosition(vector3df(3,0,-3));

	//create character mesh 
	IAnimatedMesh* charMesh = Scene->getMesh("mypc.x"); 
	IAnimatedMeshSceneNode* charNode = Scene->addAnimatedMeshSceneNode(charMesh); 
	charNode->setAnimationSpeed(5000); 

	while(Device->run()) 
	{   
		charNode->setPosition(charNode->getPosition() + vector3df(0,0,0.01f));
		charNode->getMesh()->getMeshBuffer(0)->recalculateBoundingBox();
		aabbox3df aabb = charNode->getMesh()->getMeshBuffer(0)->getBoundingBox();

		//render 
		Driver->beginScene(true, true, SColor(0,100,100,160)); 
		Scene->drawAll(); 
		Driver->draw3DBox(aabb);
		Driver->endScene(); 
	} 

[hybrid]

Excerpt from the API docs for draw3DBox:

/** This method simply calls draw3DLine for the edges of the
box. Note that the box is drawn using the current transformation
matrix and material. So if you need to draw it independently of
the current transformation, use
\code
driver->setMaterial(unlitMaterial);
driver->setTransform(video::ETS_WORLD, core::matrix4());
\endcode
for some properly set up material before drawing the box.
\param box The axis aligned box to draw
\param color Color to use while drawing the box. */

[Acki]

maybe it's better to use setDebugDataVisible(...) on the node ???

[moriwo]

>hybrid

oh, i'm sorry. i see it now.

>Acki

it looks good. thanks Acki.