GLB timeline and material fixes

The end timepoint for glb file scene timeline was not computed properly.
If the GLB material supports the ANSYS material extension, include it in the protobuffer.

src/ansys/pyensight/core/utils/omniverse_glb_server.py

@@ -1,4 +1,5 @@
 import io
+import json
 import logging
 import os
 import sys
@@ -108,6 +109,8 @@ def _map_material(self, glb_materialid: int, part_pb: Any) -> None:
         part_pb.ambient = 1.0
         part_pb.diffuse = 1.0
         part_pb.specular_intensity = 1.0
+        if "ANSYS_material_details" in mat.extensions:
+            part_pb.material_name = json.dumps(mat.extensions["ANSYS_material_details"])
         # if the material maps to a variable, set the variable id for coloring
         glb_varid = self._find_variable_from_glb_mat(glb_materialid)
         if glb_varid:
@@ -662,8 +665,7 @@ def _build_scene_timeline(self, scene_idx: int, input_timeline: List[float]) ->
         try:
             t0 = self._gltf.scenes[scene_idx].extensions["ANSYS_scene_timevalue"]["timevalue"]
             idx = scene_idx + 1
-            if idx >= num_scenes:
-                idx = scene_idx
+            if idx < num_scenes:
                 t1 = self._gltf.scenes[idx].extensions["ANSYS_scene_timevalue"]["timevalue"]
             else:
                 t1 = t0