Changing the normals of an object for displacement

[probiner]

I want to apply a displacement to an object on the Y Axis only.
In my LW background the displacement input is a vector. So I have to feed the object normals and scale them with an image (displacement map). Therefor to apply displacement on the Y I would just feed a Vector with X=0, Y=1, Z=0 and scale it with the image.
Now I notice the displacement here is set on Material and the input it's a scalar. And no matter what I put there it seems to always displace on the polygons normal. Can I have access to the vector of displacement?

I've though I could set the displacement on an ICE tree, where I can probably replace the normals. But I don't know if ICE tree can be set to solve after Render Subdivision or it can only work with Display Subdivision.

Thanks for any highlights.

Cheers

[Daniel Brassard]

Use a vector to scalar node or color to scalars node to feed into the displacement port in the render tree.

To scale, use a change range node.

If you are using normal maps, don't forget the XSINormalMap3 node.

[rray]

For using world space, use a vector_displacement_map node in displacement in which space_type is set to world space. For the input color, RGB = XYZ then.

[probiner]

Yup, it worked. I used the Vector Displacement Node with Green channel set to 5,0 and input the Map in the scalar.
I first managed to do it on ICE by adding to "Get Point Position" a Y=x, and feeding it into "Set Point Position".
But ICE only works with Modeling Subdivision, not with Render Subdivision right?

Well I found very awkward I couldn't copy nodes from ICE tree to Render tree. In my ignorant head I though these two share most nodes utilities but I was so wrong, it's the other way around. This means there's 2 mindsets going on in parallel? Coming from a quite fragmented app I thought these were quite unified here.

Thanks for sorting it out..
Cheers