2
$\begingroup$

I am trying to generate a normal map from voronoi texture + bump but its resulting in blank normal map. I am just a beginner in blender and I am pretty sure am missing out on some of the basic things here but I can't figure it out for 2 days.

Left one is the source for baking normal map. But as you can see its blank with no details. 01

Here is my source object material nodes: enter image description here

Here is the destination object material nodes: enter image description here

Also the its unwrapped enter image description here

Here are the bake settings in render section

enter image description here

But you can see the Normal Map is completely empty enter image description here

I used an HDR image for environment texture here also its latest Blender version 3.3 just incase. I tried many things but can't figure out what am I doin wrong here. I need guidance toward the right workflow to do this. Any help will be appreciated.

$\endgroup$
9
  • $\begingroup$ maybe put the small sphere inside the big one and disable the Bake > Cage option if you don't use any cage? $\endgroup$
    – moonboots
    Commented Oct 26, 2022 at 9:14
  • $\begingroup$ There's a quick tutorial on baking normal maps here which might help. $\endgroup$
    – John Eason
    Commented Oct 26, 2022 at 9:14
  • $\begingroup$ @moonboots both are equal spheres that just perspective. I just tried baking without cage option its still the same. $\endgroup$
    – Back2Lobby
    Commented Oct 26, 2022 at 9:17
  • $\begingroup$ could you please share your file? $\endgroup$
    – moonboots
    Commented Oct 26, 2022 at 9:19
  • $\begingroup$ @moonboots here is the file dropbox.com/s/f17pclc2zjjfztb/learn.blend?dl=0 $\endgroup$
    – Back2Lobby
    Commented Oct 26, 2022 at 9:22

1 Answer 1

3
$\begingroup$

It works fine, you need to put the second sphere at the exact same location (AltG will put it), otherwise the rays won't hit any normal, or won't do it the way you expect.

Here is how baking works: the rays of the baking object are going in the opposite direction to this object's normals, and they will save all the original object's normals that they will meet:

enter image description here

If the 2 objects are not at the same location, the rays (if the Ray Distance is high enough, or set to 0) will hit some normals but it won't give the result you want:

enter image description here

$\endgroup$
1
  • $\begingroup$ it worked perfectly fine. I actually didn't knew also this concept of placing both obj in same place. Thanks again for help! $\endgroup$
    – Back2Lobby
    Commented Oct 26, 2022 at 9:50

You must log in to answer this question.

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