public static void CollectInstances(Va3cObject obj, Dictionary <string, int> geoLookup, Matrix4x4 transform, List <VimInstanceData> r)
{
transform *= ToMath3d(obj.matrix);
if (geoLookup.ContainsKey(obj.geometry))
{
var inst = new VimInstanceData
{
WorldTransform = transform,
MeshIndex = geoLookup[obj.geometry]
};
r.Add(inst);
}
foreach (var c in obj.children)
{
CollectInstances(c, geoLookup, transform, r);
}
}
public glTF RecursivelyAddChilren(glTF gltf, Va3cObject obj, int parentIndex)
{
foreach (var child in obj.children)
{
glTFNode childNode = new glTFNode();
childNode.name = child.name;
foreach (double coord in child.matrix)
{
childNode.matrix.Add((float)coord);
}
int childIndex = gltf.AddChildNode(childNode, parentIndex);
if (child.geometry != null)
{
Va3cGeometry geom = _geometries[child.geometry];
// make an accessor, buffer, and bufferView
glTFBinaryData dataContainer = gltf.AddGeometryMeta(geom, child.uuid);
binaryFileData.Add(dataContainer);
// add geometry to meshes array
glTFMesh mesh = new glTFMesh();
glTFMeshPrimitive primative = new glTFMeshPrimitive();
primative.attributes.POSITION = dataContainer.vertexAccessorIndex;
primative.attributes.NORMAL = dataContainer.normalsAccessorIndex;
primative.indices = dataContainer.indexAccessorIndex;
mesh.primitives = new List <glTFMeshPrimitive>()
{
primative
};
int meshIndex = gltf.AddMesh(mesh);
gltf.nodes[childIndex].mesh = meshIndex;
}
if (child.children != null && child.children.Count > 0)
{
return(RecursivelyAddChilren(gltf, child, childIndex));
}
}
return(gltf);
}
