public IEnumerator TestGltfCustomAttributesData()
{
// Load glTF
string path = AssetDatabase.GUIDToAssetPath(CubeCustomAttrGuid);
var task = GltfUtility.ImportGltfObjectFromPathAsync(path);
yield return(WaitForTask(task));
GltfObject gltfObject = task.Result;
yield return(null);
// Check for custom vertex data is a list of 10s
gltfObject.meshes[0].primitives[0].Attributes.TryGetValue("_CUSTOM_ATTR", out var customAttrIdx);
GltfAccessor accessor = gltfObject.GetAccessor(customAttrIdx);
var intArray = accessor.GetIntArray(false);
foreach (var item in intArray)
{
Assert.AreEqual(10, item);
}
}
private static async Task <Mesh> ConstructMeshPrimitiveAsync(GltfObject gltfObject, GltfMeshPrimitive meshPrimitive)
{
if (gltfObject.UseBackgroundThread)
{
await BackgroundThread;
}
GltfAccessor positionAccessor = null;
GltfAccessor normalsAccessor = null;
GltfAccessor textCoord0Accessor = null;
GltfAccessor textCoord1Accessor = null;
GltfAccessor textCoord2Accessor = null;
GltfAccessor textCoord3Accessor = null;
GltfAccessor colorAccessor = null;
GltfAccessor indicesAccessor = null;
GltfAccessor tangentAccessor = null;
GltfAccessor weight0Accessor = null;
GltfAccessor joint0Accessor = null;
int vertexCount = 0;
positionAccessor = gltfObject.GetAccessor(meshPrimitive.Attributes.POSITION);
if (positionAccessor != null)
{
vertexCount = positionAccessor.count;
}
normalsAccessor = gltfObject.GetAccessor(meshPrimitive.Attributes.NORMAL);
textCoord0Accessor = gltfObject.GetAccessor(meshPrimitive.Attributes.TEXCOORD_0);
textCoord1Accessor = gltfObject.GetAccessor(meshPrimitive.Attributes.TEXCOORD_1);
textCoord2Accessor = gltfObject.GetAccessor(meshPrimitive.Attributes.TEXCOORD_2);
textCoord3Accessor = gltfObject.GetAccessor(meshPrimitive.Attributes.TEXCOORD_3);
colorAccessor = gltfObject.GetAccessor(meshPrimitive.Attributes.COLOR_0);
indicesAccessor = gltfObject.GetAccessor(meshPrimitive.indices);
tangentAccessor = gltfObject.GetAccessor(meshPrimitive.Attributes.TANGENT);
weight0Accessor = gltfObject.GetAccessor(meshPrimitive.Attributes.WEIGHTS_0);
joint0Accessor = gltfObject.GetAccessor(meshPrimitive.Attributes.JOINTS_0);
if (gltfObject.UseBackgroundThread)
{
await Update;
}
var mesh = new Mesh
{
indexFormat = vertexCount > UInt16.MaxValue ? IndexFormat.UInt32 : IndexFormat.UInt16,
};
if (positionAccessor != null)
{
mesh.vertices = positionAccessor.GetVector3Array();
}
if (normalsAccessor != null)
{
mesh.normals = normalsAccessor.GetVector3Array();
}
if (textCoord0Accessor != null)
{
mesh.uv = textCoord0Accessor.GetVector2Array();
}
if (textCoord1Accessor != null)
{
mesh.uv2 = textCoord1Accessor.GetVector2Array();
}
if (textCoord2Accessor != null)
{
mesh.uv3 = textCoord2Accessor.GetVector2Array();
}
if (textCoord3Accessor != null)
{
mesh.uv4 = textCoord3Accessor.GetVector2Array();
}
if (colorAccessor != null)
{
mesh.colors = colorAccessor.GetColorArray();
}
if (indicesAccessor != null)
{
mesh.triangles = indicesAccessor.GetIntArray();
}
if (tangentAccessor != null)
{
mesh.tangents = tangentAccessor.GetVector4Array();
}
if (weight0Accessor != null && joint0Accessor != null)
{
mesh.boneWeights = CreateBoneWeightArray(joint0Accessor.GetVector4Array(false), weight0Accessor.GetVector4Array(false), vertexCount);
}
mesh.RecalculateBounds();
meshPrimitive.SubMesh = mesh;
return(mesh);
}