I got it. I didn't change anything in the triangle list before.Perhaps the problem was with the vertex values given. Here is the cube node I created by modifying the tutorial. If there is any problem with the code please tell me, especially with the bounding box.Is it correct.
Code: Select all
#include <irrlicht.h>
using namespace irr;
#pragma comment(lib, "Irrlicht.lib")
class CSampleSceneNode : public scene::ISceneNode
{
/*
First, we declare some member variables. Some space to
hold data for our tetraeder: The bounding box, 4 vertices, and
the material of the tetraeder.
*/
core::aabbox3d<f32> Box;
video::S3DVertex Vertices[24];
video::SMaterial Material;
/*
The parameters of the constructor specify the parent of the scene node,
a pointer to the scene manager, and an id of the scene node.
In the constructor itself, we call the parent classes constructor,
set some properties of the material we use to draw the scene nodem and
create the 4 vertices of the tetraeder we will draw later.
*/
public:
CSampleSceneNode(scene::ISceneNode* parent, scene::ISceneManager* mgr, s32 id)
: scene::ISceneNode(parent, mgr, id)
{
Material.Wireframe = false;
Material.Lighting = false;
Vertices[0] = video::S3DVertex(-28.6792, 0.377358, -15.8491,0, 0, -1, video::SColor(255,0,0,0), 0, 0);
Vertices[1] = video::S3DVertex(3.01887, 0.377358, -15.8491,0, 0, -1, video::SColor(0,255,0,0), 0, 0);
Vertices[2] = video::S3DVertex(3.01887, 30.566, -15.8491,0, 0, -1, video::SColor(0,0,255,0), 0, 0);
Vertices[3] = video::S3DVertex( -28.6792, 30.566, -15.8491,0, 0, -1,video::SColor(255,0,0,0), 0, 0);
Vertices[4] = video::S3DVertex( -28.6792, 0.377358, 15.8491,0, 0, 1,video::SColor(0,0,255,0), 0, 0);
Vertices[5] = video::S3DVertex(-28.6792, 30.566, 15.8491,0, 0, 1, video::SColor(0,255,0,0), 0, 0);
Vertices[6] = video::S3DVertex(3.01887, 30.566, 15.8491,0, 0, 1, video::SColor(255,0,0,0), 0, 0);
Vertices[7] = video::S3DVertex( 3.01887, 0.377358, 15.8491,0, 0, 1,video::SColor(0,0,255,0), 0, 0);
Vertices[8] = video::S3DVertex(-28.6792, 0.377358, -15.8491,-1, 0, 0, video::SColor(20,0,255,0), 0, 0);
Vertices[9] = video::S3DVertex(-28.6792, 30.566, -15.8491,-1, 0, 0, video::SColor(255,0,0,0), 0, 0);
Vertices[10] = video::S3DVertex(-28.6792, 30.566, 15.8491,-1, 0, 0, video::SColor(255,255,150,0), 0, 0);
Vertices[11] = video::S3DVertex(-28.6792, 0.377358, 15.8491,-1, 0, 0,video::SColor(30,60,255,0), 0, 0);
Vertices[12] = video::S3DVertex(3.01887, 0.377358, -15.8491,1, 0, 0, video::SColor(158,0,40,0), 0, 0);
Vertices[13] = video::S3DVertex(3.01887, 0.377358, 15.8491,1, 0, 0,video::SColor(200,100,0,0), 0, 0);
Vertices[14] = video::S3DVertex(3.01887, 30.566, 15.8491,1, 0, 0, video::SColor(0,0,130,0), 0, 0);
Vertices[15] = video::S3DVertex( 3.01887, 30.566, -15.8491,1, 0, 0,video::SColor(22,0,50,0), 0, 0);
Vertices[16] = video::S3DVertex(-28.6792, 30.566, -15.8491,0, 1, 0,video::SColor(255,0,255,0), 0, 0);
Vertices[17] = video::S3DVertex(3.01887, 30.566, -15.8491,0, 1, 0, video::SColor(26,0,60,0), 0, 0);
Vertices[18] = video::S3DVertex(3.01887, 30.566, 15.8491,0, 1, 0, video::SColor(120,200,255,0), 0, 0);
Vertices[19] = video::S3DVertex(-28.6792, 30.566, 15.8491,0, 1, 0, video::SColor(255,40,0,0), 0, 0);
Vertices[20] = video::S3DVertex(-28.6792, 0.377358, -15.8491,0, -1, 0, video::SColor(230,0,255,0), 0, 0);
Vertices[21] = video::S3DVertex(-28.6792, 0.377358, 15.8491,0, -1, 0,video::SColor(255,250,24,0), 0, 0);
Vertices[22] = video::S3DVertex( 3.01887, 0.377358, 15.8491,0, -1, 0,video::SColor(255,0,0,0), 0, 0);
Vertices[23] = video::S3DVertex(3.01887, 0.377358, -15.8491,0, -1, 0,video::SColor(0,0,255,0), 0, 0);
Box.reset(Vertices[0].Pos);
for (s32 i=1; i<24; ++i)
Box.addInternalPoint(Vertices[i].Pos);
}
virtual void OnPreRender()
{
if (IsVisible)
SceneManager->registerNodeForRendering(this);
ISceneNode::OnPreRender();
}
virtual void render()
{
u16 indices[] = {
0, 2, 1,
0, 3, 2,
4, 6, 5,
4, 7, 6,
8, 10, 9,
8, 11, 10,
12, 14, 13,
12, 15, 14,
16, 18, 17,
16, 19, 18,
20, 22, 21,
20, 23, 22
};
video::IVideoDriver* driver = SceneManager->getVideoDriver();
driver->setMaterial(Material);
driver->setTransform(video::ETS_WORLD, AbsoluteTransformation);
driver->drawIndexedTriangleList(&Vertices[0], 24, &indices[0], 12);
}
virtual const core::aabbox3d<f32>& getBoundingBox() const
{
return Box;
}
virtual s32 getMaterialCount()
{
return 1;
}
virtual video::SMaterial& getMaterial(s32 i)
{
return Material;
}
};
/*
That's it. The Scene node is done. Now we simply have to start
the engine, create the scene node and a camera, and look at the result.
*/
int main()
{
// create engine and camera
IrrlichtDevice *device =
createDevice(video::EDT_OPENGL, core::dimension2d<s32>(640, 480), 16, false);
device->setWindowCaption(L"Custom Scene Node-Cube-Grassblade");
video::IVideoDriver* driver = device->getVideoDriver();
scene::ISceneManager* smgr = device->getSceneManager();
smgr->addCameraSceneNode(0, core::vector3df(0,-40,0), core::vector3df(0,0,0));
/*
Create our scene node. Note that it is dropped (->drop()) instantly after
we create it. This is possible because the scene manager now takes
care of it. This is not nessecary, it would also be possible to drop it
at the end of the program.
*/
CSampleSceneNode *myNode =
new CSampleSceneNode(smgr->getRootSceneNode(), smgr, 666);
myNode->drop();
/*
To animate something in this boring scene consisting only of one tetraeder,
and to show, that you now can use your scene node like any other scene
node in the engine, we add an animator to the scene node, which rotates
the node a little bit.
*/
scene::ISceneNodeAnimator* anim =
smgr->createRotationAnimator(core::vector3df(0.8f, 0, 0.8f));
myNode->addAnimator(anim);
anim->drop();
/*
Now draw everything and finish.
*/
while(device->run())
{
driver->beginScene(true, true, video::SColor(0,100,100,100));
smgr->drawAll();
driver->endScene();
}
device->drop();
return 0;
}
[\code]
I got it. I didn't change anything in the triangle list before.Perhaps the problem was with the vertex values given. Here is the cube node I created by modifying the tutorial. If there is any problem with the code please tell me, especially with the bounding box.Is it correct.