Can I get Vertices from ObjectMeshStatic

[lin.xianming]

1>

I'm trying to figure out how to get the vertices from objects. 

It seems that only ObjectMeshDynamic has the related API.

 

virtual const ObjectMeshDynamic::Vertex * ObjectMeshDynamic::getVertexArray() const = 0;

 

But if I intend to get vertices from ObjectMeshStatic, is it possible? 

 

2>

Console::get()->run("world_load core/Unigine");

 

means the whole related textures have uploaded into CPU or GPU memory? My purpose is just to draw the scene in wireframe. Is it too costly?

 

Thanks!

David

 

 

 

[silent]

Hi David,

 

 

2>

Console::get()->run("world_load core/Unigine");

 

means the whole related textures have uploaded into CPU or GPU memory? My purpose is just to draw the scene in wireframe. Is it too costly?

 

Yes. To avoid uploading textures you need to assign material with blank texture to all the materials and surfaces.

 

Regarding the first question, maybe that article will be helpful: https://developer.unigine.com/en/docs/2.3.1/code/uniginescript/usage/mesh_class/(also, there is a getVertex method in Unigine::Mesh class).

 

Thanks!

[lin.xianming]

I put the codes into Players.cpp (a sample located in "starter_windows_2.3.1\source\samples\Api\Nodes\Players" ), but It dosen't work (m.pointer = 0).

 

 

virtual int init()

{

...

// create meshes

ObjectMeshStaticPtr mesh_0 = ObjectMeshStatic::create("../../data/cbox.mesh");

mesh_0->release();

mesh_0->setTransform(translate(Vec3(-2.0f, 0.0f, 0.0f)));

mesh_0->setMaterial("mesh_base", "*");

 

// Get mesh from ObjectMeshStatic 

MeshPtr m;

mesh_0->getMesh(m);

}

 

 

Thanks

[ded]

Hi David,

 

Maybe a name "getMesh" for this method is a somewhat misleading.

It actually copies geometry into the mesh instance that you've passed as a parameter.

So it should work if you create mesh instance first, something like:

MeshPtr m = Mesh::create();
if (mesh_0->getMesh(m)) {
    ...
} else {
    Log::error("failed to load a mesh\n");
}