Update trellis/utils/postprocessing_utils.py

trellis/utils/postprocessing_utils.py

@@ -455,4 +455,10 @@ def to_glb(
     # rotate mesh (from z-up to y-up)
     vertices = vertices @ np.array([[1, 0, 0], [0, 0, -1], [0, 1, 0]])
     mesh = trimesh.Trimesh(vertices, faces, visual=trimesh.visual.TextureVisuals(uv=uvs, image=texture))
+
+    # rotate mesh with 90 degrees around y-axis
+    angle = np.radians(90)
+    direction = [0, 1, 0]
+    rot_matrix = trimesh.transformations.rotation_matrix(angle, direction)
+    mesh.apply_transform(rot_matrix)
     return mesh