static Mesh FromGltf(Vrm10Storage storage, VrmProtobuf.Mesh x, VrmProtobuf.MeshPrimitive primitive, bool isShared)
{
var mesh = new Mesh((TopologyType)primitive.Mode.GetValueOrDefault())
{
VertexBuffer = primitive.Attributes.FromGltf(storage)
};
if (isShared)
{
// create joined index buffer
mesh.IndexBuffer = storage.CreateAccessor(x.Primitives.Select(y => y.Indices.Value).ToArray());
}
else
{
mesh.IndexBuffer = storage.CreateAccessor(primitive.Indices.Value);
}
{
for (int i = 0; i < primitive.Targets.Count; ++i)
{
var gltfTarget = primitive.Targets[i];
string targetName = null;
if (primitive.Extras != null &&
primitive.Extras.TargetNames != null &&
i < primitive.Extras.TargetNames.Count
)
{
targetName = primitive.Extras.TargetNames[i];
}
var target = new MorphTarget(targetName)
{
VertexBuffer = gltfTarget.FromGltf(storage)
};
// validate count
foreach (var kv in target.VertexBuffer)
{
if (kv.Value.Count != mesh.VertexBuffer.Count)
{
throw new Exception();
}
}
mesh.MorphTargets.Add(target);
}
}
return(mesh);
}
public static VertexBuffer FromGltf(this global::Google.Protobuf.Collections.MapField <string, int> attributes,
Vrm10Storage storage)
{
var b = new VertexBuffer();
foreach (var kv in attributes)
{
var accessor = storage.CreateAccessor(kv.Value);
b.Add(kv.Key, accessor);
}
return(b);
}
