I am trying to make a script to modify the color ramp of every material in the file. According to the API, there is a variable in each Material called diffuse_ramp. However, my code is crashing at this line:
m.diffuse_ramp.interpolation = 'CONSTANT';
…with the error saying that “‘NoneType’ object has no attribute ‘interpolation’”.
The material is not null (the previous line is “m.diffuse_ramp_input = ‘RESULT’;”, and that works fine). And the variable diffuse_ramp definitely exists, otherwise the error would be something like “‘Material’ object has no attribute ‘diffuse_ramp’”.
Is the issue that the Color Ramp hasn’t been created yet? If so, how do I fix that (since diffuse_ramp is read only)?