I've been using Blender for a few months to make the models for a game (actual game engine is Unity Free). I'm new to Blender and 3D modelling in general, so please be patient with me if I'm doing something stupid or I use the wrong terminology.

Anyways, I got the Blender 2.71 testbuild 2 and I've been using it for baking in my Cycles materials for my game. It's been working pretty good, but for one of my models it isn't working. I go and press "Bake" with bake type set to "Combined" and I wait there for an hour or so and instead of baking the model in full color (like it normally does), the UV's are all black (see "combined bake.png"). Am I doing something wrong here? (I've uploaded my .blend file if anyone wants to see it.)

Also, this is how I normally do cycles baking (this has worked for my other models): First, I go into edit mode and do a Smart UV project. Then I go into one of my materials and open up the node editor. I add a Texture Coordinate node. Then I add an Image Texture node and set the file to whichever file I want to bake to. I then take the UV from the Texture Coordinate and put it into the Vector node in the Image Texture. I repeat the process for each of the object's materials. Then I go to Render>Bake and press Bake with the type set to combined bake. This normally does work for my other models. The only thing different with this one is that there is a crystal thing hovering over the object I'm baking. The crystal has a strong emission shader. Is there anything wrong here?

I'm using 1000 samples if anyone wants to know.

(Note: I tried this on the Blender 2.71 RC1 from http://ftp.nluug.nl/pub/graphics/ble...e/Blender2.71/ that just came out - still no luck.)

rendered.png: Rendered image using 1000 samples.

combined bake.png enter image description here

full file.blend This my blend file that I'm using for this model.

  • $\begingroup$ Here is the same question on blenderartists.org: blenderartists.org/forum/…. Sorry for cross-posting, it's just that I'm afraid my question isn't getting much attention there. $\endgroup$
    – user
    Jun 16, 2014 at 14:30
  • 1
    $\begingroup$ Did you try recalculating the normals (Ctrl-N in Edit Mode)? That sometimes fixes it. $\endgroup$
    – CharlesL
    Jun 16, 2014 at 15:22
  • $\begingroup$ @CharlesL Thank you! Now the combined bake is working properly. I felt like was missing something simple. $\endgroup$
    – user
    Jun 16, 2014 at 17:33
  • $\begingroup$ @CharlesL Feel free to add that as an answer :) $\endgroup$
    – gandalf3
    Jun 16, 2014 at 20:17
  • $\begingroup$ @gandalf3 done :D $\endgroup$
    – CharlesL
    Jun 16, 2014 at 20:53

1 Answer 1


You need to recalculate the normals of the object (Edit Mode > CtrlN).

If you don't, the normals will all face inward (where there is no light).


You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .