Converting a node back into a mesh?

[dgrafix]

If i have a scene node, how do i reference its original mesh data? (Without heeping the original mesh handle from when it was loaded/created)

[huydotnet]

You can use
node->getMesh()

[dgrafix]

It doesnt work, it says iscenenode has no member named getMesh()

[twilight17]

I think it's
node->getmesh(0)

or the number of your mesh

[vitek]

You have to cast the ISceneNode* to the correct derived interface type [IMeshSceneNode*, IAnimatedMeshSceneNode* or whatever] based on the result of the getType() method. Once you've got a pointer to the derived interface there are usually methods for accessing the mesh.

Travis

[huydotnet]

use this (convert it from ISceneNode to IAnimatedSceneNode)
(IAnimatedMeshSceneNode*)node->getMesh()

[kornwaretm]

and some handler

Code: Select all

if(node->getType( )==ESNT_MESH ){
   //get mesh here 
   //remember iAnimatedMeshSceneNode and IMeshSceneNode are different
}
 

[MasterGod]

use this (convert it from ISceneNode to IAnimatedSceneNode)
(IAnimatedMeshSceneNode*)node->getMesh()

I believe that's converting the returned value from getMesh() and not node.

[huydotnet]

yes, it mean converting ISceneNode to IAnimatedSceneNode first, then we can get mesh

[kornwaretm]

i assume u need the static mesh, if u need the animated mesh use only the second case.

Code: Select all

IMesh* mesh;
switch(node->getType( ){
case (ESNT_MESH ):
     IMeshSceneNode* meshNode=0;
     meshNode = node;
     mesh = meshNode->getMesh()
     break;
case (ESNT_ANIMATED_MESH ):
     IAnimatedMeshSceneNode* aniMeshNode=0;
     aniMeshNode = node;
     mesh = aniMeshNode->getMesh()->getMesh(0);//which one u will take
     break;
} 

just obtain the pointer, copy it to your mesh node, obtain the pointer to the mesh

if this is not what u need, may be u need to get meshes via mesh cache?

[MasterGod]

yes, it mean converting ISceneNode to IAnimatedSceneNode first, then we can get mesh

No =P, it converts the returned value of getMesh() and not the node of which you call with to getMesh().
In other words you don't cast the node object.. or correct me if I'm wrong but I'm pretty sure I'm right

[huydotnet]

ah, yes, i understand
now, the code is:

Code: Select all

IAnimatedMeshSceneNode* convertedNode;
convertedNode = (IAnimatedMeshSceneNode*)node;
IAnimatedMesh* mesh;
mesh = convertedNode->getMesh();

is this right?

[Acki]

or simply this:

Code: Select all

IAnimatedMesh* mesh = ((IAnimatedMeshSceneNode*)node)->getMesh();

[MasterGod]

Yes. And what Acki suggested would be even better

[huydotnet]

yes