glTF addon: updates from upstream

* invalidate cache for multiple exports
* exporter: support KHR_lights_punctual
* fixed lights
* disable export all layers
* fixed texture slot images stalling export
* option to enable exporting more than 4 influences

from upsteam commit 26699c476211add92d13df0a284b8df2f08acb3e
to upstream commit 7a8f733fc446cfb3880a8c1658bccf94bcfd456c

1 files changed, 2 insertions, 2 deletions

diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_image.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_image.py
index 4941ffe2..b89f51d7 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_image.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_image.py
@@ -98,7 +98,7 @@ def __get_image_data(sockets_or_slots):
     # For shared ressources, such as images, we just store the portion of data that is needed in the glTF property
     # in a helper class. During generation of the glTF in the exporter these will then be combined to actual binary
     # ressources.
-    def split_pixels_by_channels(image: bpy.types.Image) -> typing.Iterable[typing.Iterable[float]]:
+    def split_pixels_by_channels(image: bpy.types.Image) -> typing.List[typing.List[float]]:
         pixels = np.array(image.pixels)
         pixels = pixels.reshape((pixels.shape[0] // image.channels, image.channels))
         channels = np.split(pixels, pixels.shape[1], axis=1)
@@ -139,7 +139,7 @@ def __get_image_data(sockets_or_slots):
         return image
     elif __is_slot(sockets_or_slots):
         texture = __get_tex_from_slot(sockets_or_slots[0])
-        pixels = texture.image.pixels
+        pixels = split_pixels_by_channels(texture.image)
 
         image_data = gltf2_io_image_data.ImageData(
             texture.name,