diff --git a/examples/quick_test.py b/examples/quick_test.py
index f9d47a1..4e5c576 100644
--- a/examples/quick_test.py
+++ b/examples/quick_test.py
@@ -3,17 +3,13 @@
 print("--- START")
 
 # one triangle as a geometric element
-# we write our triangle in a CaribuScene format
-organ_id = 1
-triangle_vertices = [(0,0,0), (1,0,0), (1,1,1)]
-triangle = {organ_id : [triangle_vertices]}
-geometry = { "scenes" : [triangle] }
+triangle_vertices = [(0.,0.,0.), (1.,0.,0.), (1.,1.,1.)]
 
 # surfacic lighting with CARIBU
 lighting = LightVegeManager(lightmodel="caribu")
 
 # build the scene
-lighting.build(geometry)
+lighting.build(geometry=triangle_vertices)
 
 # compute lighting
 energy = 500
diff --git a/src/lightvegemanager/tool.py b/src/lightvegemanager/tool.py
index 32c81a7..1c7dd01 100644
--- a/src/lightvegemanager/tool.py
+++ b/src/lightvegemanager/tool.py
@@ -212,6 +212,10 @@ def build(self, geometry={}, global_scene_tesselate_level=0):
         :type global_scene_tesselate_level: int, optional
         :raises ValueError: Currently, converting voxels mesh to triangles mesh is not possible
         """
+        # pre-check of scenes input, if it has only one triangle or one list of triangles
+        if isatriangle(geometry) or all(isatriangle(s) for s in geometry):
+            geometry = {"scenes" : geometry}
+ 
         self.__geometry = geometry
 
         # First process of the scenes list, it gathers all triangulations
diff --git a/tests/test_trianglesmesh.py b/tests/test_trianglesmesh.py
index 7703d82..873c567 100644
--- a/tests/test_trianglesmesh.py
+++ b/tests/test_trianglesmesh.py
@@ -139,6 +139,30 @@ def test_isatriangle():
     assert not isatriangle(tr4)
     assert not isatriangle(tr5)
 
+# single triangle
+tr = [(0., 0., 0.), (0., 1., 0.), (1., 1., 1.)]
+expected1 = (
+    {0 : [tr] },
+    {0 : [0, 0]}
+)
+
+# list of triangles
+triangles = [
+    [(0., 0., 0.), (0., 1., 0.), (1., 1., 1.)],
+    [(0., 0., 10.), (0., 1., 10.), (1., 1., 11.)],
+    [(0., 0., 20.), (0., 1., 20.), (1., 1., 21.)],
+]
+expected2 = (
+    {0 : triangles },
+    {0 : [0, 0]}
+)
+
+@pytest.mark.parametrize("test_input, expected", [(tr, expected1), (triangles, expected2)])
+def test_chain_triangulations_simple(test_input, expected):
+    complete_trimesh, matching_ids, legume_grid, id_legume_scene = chain_triangulations(test_input)
+    assert complete_trimesh == expected[0]
+    assert matching_ids == expected[1]
+
 
 def test_chain_triangulations():
     # single triangle
@@ -218,9 +242,6 @@ def test_chain_triangulations():
     for t in itertools.chain(*complete_trimesh.values()):
         assert isatriangle(t)
 
-test_chain_triangulations()
-
-
 transformation_1 = {"scenes unit": {0: "m", 1: "dm"}}
 expected_1 = {
     0: [[(0.0, 0.0, 0.0), (0.0, 100.0, 0.0), (100.0, 100.0, 100.0)]],