Having trouble with Displacement maps

[Omegauser9]

I'm 90% sure it's just something I"m doing, but I want to drop a displacement map on some objects, and I do it by creating a diffuse texture, creating a displacement node and going to either "Grayscale" Or "RGB Image" but neither cause a displacement to appear on the object. I was told I need to look for an "Image texture" node but i can't find it anywhere

[bepeg4d]

Hi Omegauser9,
please, post a screenshot, it is more easy to try to spot the issue.
Yes, displacement works only with image textures.
Anyway, please, check the uvs, octane displacement works better with proper unfolded not overlapping uvs.
ciao beppe