GIMP image to scene: in XJT mode GIMP sometimes decide not to export an

alpha layer if this layer is unmodified (pure white) even if the layer
is marked as alpha. This makes it impossible to know without phisically
checking if the alpha file exists or not

io_import_gimp_image_to_scene.py

@@ -88,6 +88,9 @@ def main(File, Path, LayerViewers, MixerViewers, LayerOffset,\
                         ResX, ResY = map (int, Segment[4:].split(','))
             if Line.startswith("b'L") or Line.startswith("b'l"):
                 
+                '''The "nice" method to check if layer has alpha channel
+                sadly GIMP sometimes decides not to export an alpha channel
+                if it's pure white so we are not completly sure here yet'''
                 if Line.startswith("b'L"): HasAlpha = True
                 else: HasAlpha = False
                 
@@ -101,6 +104,12 @@ def main(File, Path, LayerViewers, MixerViewers, LayerOffset,\
                         imageFile = 'l' + Segment[3:] + '.jpg'
                         imageFileAlpha ='la'+Segment[3:]+'.jpg'
                         
+                        '''Phisically double checking if alpha image exists
+                        now we can be sure! (damn GIMP)'''
+                        if HasAlpha:
+                            if not os.path.isfile(PathSaveRaw+imageFileAlpha): HasAlpha = False
+                            print ("This image has alpha: ", HasAlpha)
+                        
                         # Get Widht and Height from images
                         data = open(PathSaveRaw+imageFile, "rb").read()