NavMesh ( How to generate a mesh by directly applying the matrix transformation?)

General Discussion
1

Hello,

First of all sorry for my bad English.

I use the library JM3 Ai Library for the use of NavMesh in the search path. This works well with the terrain. This also works well with a variety of Mesh. To do this, I get the Mesh Geometry object of the object :".

 Node n = (Node) scene;
 Geometry geom = (Geometry) n.getChild("meshPath");
 Mesh mesh = geom.getMesh();
 NavMesh navMesh = new NavMesh(mesh);

The trouble is that no transformation is applied to the mesh, so when I create NavMesh object, the search path does not match my geometry. Moving the agent does not give a good result.

Is there a way to generate a new mesh with the transformations applied ?

Thank you in advance for your answers.

2

Yes, that happed for me too. You need to apply transform directly to your mesh.
In Blender to do that select your mesh In Object mode, then Control-A - 'Apply Location/Scale/Rotation . Now if you switch to Edit mode you can see the mesh matches with your geometry.

3

Or you maybe can do it by applying transformation matrix to mesh vertex buffer in JME .
I have not tested this myself. for more info see
https://jmonkeyengine.github.io/wiki/jme3/advanced/custom_meshes.html#toolbar

4

Thank you for your reply. Indeed, I thought to apply the transformations from the program Blender but if unfortunately I modify the scale of an object in the editor of JMonkeyEngine, everything is to start again in the program Blender.

I think I will rather transform the mesh by applying the transformation matrix in the code. I will recreate the Mesh by applying for each Vertices the transformation matrix. I just thought that an existing method could be applied directly to the Mesh object.

Thank you

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