ConvertToRenderScene does not fill nodes and RenderMesh

[MootoolsSoftware]

File: Netsuke_-_Shoki_capturing_an_oni.zip

`` tinyusdz::tydra::RenderSceneConverter converter; tinyusdz::tydra::RenderScene renderScene; ret = converter.ConvertToRenderScene(stage, &renderScene); XASSERT(ret); XASSERT(renderScene.nodes.size() != 0); for (size_t i = 0; i < renderScene.meshes.size(); i++) { tinyusdz::tydra::RenderMesh& rmesh = renderScene.meshes[i];

    XASSERT(rmesh.element_name.size() != 0);
    XASSERT(rmesh.abs_name.size() != 0);
}

In the above code and with the provided sample the 3 asserts pops.

It is like the ConvertToRenderScene does not fill its nodes field.
And the fields that allows to name the mesh and know their path are also missing.

Note that the problem occurs with all the sample we tried.

[syoyo]

Yes, nodes and filling element_name and abs_name to RenderMesh is not yet supported. I'll work on it soon.

I also plan to add display_name to RenderMesh/Node to transfer displayName in USD Prim(https://github.com/PixarAnimationStudios/OpenUSD/pull/2055)

[syoyo]

In the recent rendermesh-refactor branch, now node names, paths, id to mesh should be filled correctly.

$ tydra_to_renderscene input.usd 

...

nodes {
    node {
        type "xform"
        id -1
        prim_name "grid2"
        abs_path "/grid2"
        display_name ""
        local_matrix "( (1.0, 0.0, 0.0, 0.0), (0.0, 1.0, 0.0, 0.0), (0.0, 0.0, 1.0, 0.0), (0.0, 0.0, 0.0, 1.0) )"
        children {
        node {
...

[syoyo]

dev branch now fills node's xform and names correctly.

https://github.com/syoyo/tinyusdz/blob/dev/models/translated-cube-001.usda

$ ./tydra_to_renderscene models/translated-cube-001.usda

nodes {
    node {
        type "xform"
        id -1
        prim_name "Cube"
        abs_path "/Cube"
        display_name ""
        local_matrix "( (2.0, 0.0, 0.0, 0.0), (0.0, 3.0, 0.0, 0.0), (0.0, 0.0, 4.0, 0.0), (-1.1853550672531129, 0.0, 1.9550952911376954, 1.0) )"
        global_matrix "( (2.0, 0.0, 0.0, 0.0), (0.0, 3.0, 0.0, 0.0), (0.0, 0.0, 4.0, 0.0), (-1.1853550672531129, 0.0, 1.9550952911376954, 1.0) )"
        children {
        node {
            type "mesh"
            id 0
            prim_name "Cube"
            abs_path "/Cube/Cube"
            display_name ""
            local_matrix "( (1.0, 0.0, 0.0, 0.0), (0.0, 1.0, 0.0, 0.0), (0.0, 0.0, 1.0, 0.0), (100.0, 200.0, 300.0, 1.0) )"
            global_matrix "( (2.0, 0.0, 0.0, 0.0), (0.0, 3.0, 0.0, 0.0), (0.0, 0.0, 4.0, 0.0), (198.8146449327469, 600.0, 1201.9550952911377, 1.0) )"
        }
        }
    }
}

(Netsuke_-_Shoki_capturing_an_oni.zip should also be handled correctly)