Hi, can you tell me how to get rid of this kind of unevenness in the depth pass? I know that in mantra there is a special section dedicated to this, but how to equalize the edges in karma?

(Houdini 19.5.752)

depth AOV is tricky (similar to many utility AOVs like P, N, ...) unless you render deeps

since a single pixel can contain values from different objects in different depths
so if you'd apply the same pixel filter as on beauty, you will get averaged depth for those pixels which may not be ideal

the default depth uses pixel filter which will just take the depth value of the lowest z from all pixel samples, that's why it is aliased as that's on purpose, arguably not ideal either

so if you want a different filtering like average all just change the pixel filter for your Depth AOV