Update shader.py

fixed issue taniwha#76

shader/shader.py

@@ -200,22 +200,30 @@ def call_update(item, prop, context):
 def set_tex(mu, dst, src, context):
     try:
         if src.index < 0:
-            raise IndexError    # ick, but it works
+            raise IndexError  # ick, but it works
         tex = mu.textures[src.index]
         if tex.name[-4:] in [".dds", ".png", ".tga", ".mbm"]:
             dst.tex = tex.name[:-4]
         else:
             dst.tex = tex.name
-        dst.type = tex.type
+
+        # Ensure tex.type is 0/1 or True/False
+        if tex.type in [0, 1]:
+            dst.type = tex.type
+        else:
+            # Convert to a boolean or 0/1
+            dst.type = bool(tex.type)
+
     except IndexError:
         pass
+
     if dst.tex in bpy.data.images:
         dst.rgbNorm = not bpy.data.images[dst.tex].muimageprop.convertNorm
     dst.scale = src.scale
     dst.offset = src.offset
     if context.material.node_tree:
         call_update(dst, "tex", context)
-        #other properties are all updated in the one updater
+        # other properties are all updated in the one updater
         call_update(dst, "rgbNorm", context)
 
 def make_shader_prop(muprop, blendprop, context):