Simple material colors lost

[dhabbyc]

Hello,

First thank you for your work.

I have a simple model on blender. Mostly extruded polygons. I have setted color for the objects in blender, like so (using python API):

mat = bpy.data.materials.new(name=name+"_mat")
mat.use_object_color = True
myobject.data.materials.append(mat)
myobject.color = 1.0, 1.0, 0.0, 1.0

When I export the model using the blender GUI, on osgviewer everything looks on shades of gray.

Am I missing something?

Blender 2.79b, OSG 3.6.3, win10 OS

[mp3butcher]

myobject.color = 1.0, 1.0, 0.0, 1.0
Not sure Python understand that...I'd try tuple () instead