4.3.2 Mesh

The mesh property class can be used to assign a 3D model to an entity. This property class defines a visual representation for an entity.

Property Class Details

• Name: `pcmesh'
• Factory ID: `cel.pcfactory.mesh'
• Interface: iPcMesh
• Header: `include/propclass/mesh.h'

General Information

Using this property class one can assign a 3D mesh from Crystal Space to an entity.

Setting the Mesh Data

There are a few ways to set the mesh in `pcmesh':

• If you already have a pointer to a mesh wrapper from Crystal Space then you can simply use iPcMesh->SetMesh() with the mesh wrapper as a parameter.
• If you know the mesh factory is already loaded in memory then you can set the mesh directly from the mesh factory name by calling iPcMesh->SetMesh() with `factname' given and `filename' equal to `0'.
• Otherwise you have to give a valid filename in which case SetMesh() will first check to see if the factory is already loaded. If not then it will load it from the given filename. If you call iPcMesh->SetPath() then you can also control the VFS path from which the factory file will be loaded.

Note that the file can be either a `meshfact' XML file or else a `library' XML file.

From Mesh to Entity and Back

It is easy to get from the entity to the mesh by using the following code:

csRef<iPcMesh> pcmesh = CEL_QUERY_PROPCLASS_ENT (entity, iPcMesh);
iMeshWrapper* mesh = pcmesh->GetMesh ();

But you can also get from the mesh back to the entity very easily because the physical layer maintains a link:

iMeshWrapper* mesh = ...;
iCelEntity* entity = pl->FindAttachedEntity (mesh->QueryObject ());

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