Loading mesh from *.irr file

Ivo Georgiev · Post by **Ivo Georgiev** » Mon Dec 17, 2007 9:26 am

The title tels it all...I wanna load mesh from irrlicht file.My scene manager is called "scene_manager".

hybrid · Post by **hybrid** » Mon Dec 17, 2007 9:49 am

The just do it. There's also an example (number 15) doing exactly this.

Ivo Georgiev · Post by **Ivo Georgiev** » Mon Dec 17, 2007 10:25 am

But that example loads scene, not mesh...

shogun · Post by **shogun** » Mon Dec 17, 2007 10:48 am

.irr IS a scene format, not mesh format.

dejai · Post by **dejai** » Mon Dec 17, 2007 11:03 am

lets add this to the manual lol..

Ivo Georgiev · Post by **Ivo Georgiev** » Mon Dec 17, 2007 5:32 pm

And talking for manual, is there any good manual around??I havent found nothing which can help me in the documentation

I know that is a scene format, but I wanna get the MESH out of it...there is mesh too!

vitek · Post by **vitek** » Mon Dec 17, 2007 8:13 pm

It is pretty easy. You now know that the .irr format describes an entire scene, so

Load the scene.
Now that you have a scene, you need to locate the scene node that holds the mesh you wish to access. The scene manager has methods for locating nodes by name, type or id.
Check the type of the scene node, and cast the scene node pointer to the correct derived scene node type.
Ask the derived scene node for its mesh.

Of course the other option would be to just load a named mesh and access it directly.

Travis

christianclavet · Post by **christianclavet** » Mon Dec 17, 2007 9:19 pm

Ivo, there is absolutely no mesh "embedded" in the scene format.

You need also the mesh files.

Like:

B3D format
X Format
3DS format
IRRmesh format
COLLADA format
...

A IRR scene file will permit you to reload a series of mesh file and be reloaded at the position you placed them in IRRedit.

Ivo Georgiev · Post by **Ivo Georgiev** » Tue Dec 18, 2007 5:15 pm

Okay, I am sure you are write, but I will try screne_manager -> getMesh

dejai · Post by **dejai** » Fri Dec 21, 2007 3:28 am

Viron, you need to write a tutorial on this and then add it to your signature, it would save so much time

Or just post something, feel free to add it into the irrlicht manual.. Just add chapter 11 on irredit if you wish

Also Ivo it wont work

This question has been asked hundreds of times. I wonder why niko does not just make a mesh exporter for irredit, on the subject would it even be possible.

Saypen · Post by **Saypen** » Fri Dec 21, 2007 5:17 am

sceneManager->getMesh loads a mesh from an external file - when you load a .irr file it loads all the meshes and scene nodes automatically. Once you have loaded the .irr file you can get a specified mesh by:

Code: Select all

    
sceneManager->loadScene("scene.irr"); //load the scene

ISceneNode* node = getNodeFromName(name); //get the scene node from its name

//turn type ISceneNode into type IMeshSceneNode
IMeshSceneNode* meshSceneNode = (IMeshSceneNode*) node; 

return meshSceneNode->getMesh(); //return the mesh nodes mesh

this works only if you no the name of a node who 'owns' the mesh

fuego2008 · Post by **fuego2008** » Sat Oct 11, 2008 4:59 pm

Saypen, I was in need of this code for very long. Your fragment of code saved my life. Great thanks