# Diffuse baking - extremly weird result (cycles)

I try to bake the diffuse map of my box model in cycles render engine, but I get extremly weird results:

I made a short video: https://youtu.be/bwoLJ8psZ2E

1. This is my model:

1. it is a model which consists of multiple smaller models which I have joined at the end, thus it has multiple materials:

1. First I created a new UV-Map and choosed Smart UV-Layout.

1. Then I created a new texture in the UV-Panel

1. Next I hit bake:

1. This is the result:

1. ...and if I select the original UV-Map then it looks like this now:

1. I am not sure why this does not bake as expected.

If I do the same method with another model which has only one material, then it works without problems.

• What happens if you uncheck clear in the bake settings? – Brenticus Nov 30 '17 at 17:37
• did you assign the new UV map to be used with the baked image? – user1853 Nov 30 '17 at 17:55
• @cegaton, Im not sure, I did all the steps precisley like you see here or in the video. – Black Nov 30 '17 at 20:20
• @Brenticus, clear is creating an alpha mask on every part which is not painted. – Black Nov 30 '17 at 21:01
• On the step 2 try removing empty material slot – Mr Zak Dec 1 '17 at 13:37

I solved it, I had to add the texture bakeResult0001 created at step #4 to each material as none connected image texture node, I also had to only check "color" in the bake settings, otherwise weird black spots were baked onto the texture.