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i want to do image texturing using geometry nodes, because i want to combine it with other nodes.
The Image Texture node (second picture) doesn't produce a texture in normal direction. Does anyone know how to make texture like first picture using geometry nodes?
Thanks! :D
Texture using displacement modifier
Texture using geometry nodes "image texture"
If you want to displace the mesh in normal direction, you need to provide the normal information in the nodetree. You can simply do this by adding a Normal node and plugging it into the Offset of the Set Position node. Immediately all vertices are moved outwards by 1 in normal direction.
To control how far they are moved outwards, you can scale the normals by using a Vector Math node set to Scale. And to influence the displacement by the image texture, you plug this into the Scale input. Use a Map Range, Color Ramp or Multiply node to increase or decrease the strength of the texture (I didn't use the UV Map for the texture because I didn't unwrap the object):
Further to @Gordon's answer.. you may want your displacement to be mapped in UV space (rather than the default Position, or Object space). But his point that the (Float) texture should scale (Vector) Normal, if you want the displacement to be along normals, remains the same.
At the moment you are casting what looks like a Float texture value v to a Vector 'Offset' . That will result in a displacement of (v,v,v) as on the left:
as opposed to a displacement of v*N, on the right.
