I would like to create a general control mechanism for a vertex group. As the image shows, I would like to be able to move vertices (they belong to a vertex group) with some control mechanism (a ColorRamp or another Mesh Line) and blend the movement between the control instances. Preferably the movement should be based on the normal of the corresponding front face or if that is too complicated than at least in separate X and Y directions. First I thought of a ColorRamp as the control instance (with external min/max values to limit the amount of movement) and somehow drive with that the position of the vertices with smooth blending for the in between vertices. I guess this is very complicated so for a start a simple line mesh with a couple of vertices as control points would also do the job. I find GN very complicated and have actually more and more problems to grasp it from Blender release to release. (Especially if the task is more than just simple scattering). I'm using Blender 3.2. If someone has the time, could you give me small examples for:
- how do I reference Vertex Groups?
- how can I distribute the movement of lets say 4 control points of the mesh line to lets say 100 vertices of the group and blend in between them smoothly? (A ColorRamp would give the option for different blending methods.)
- how (and if) can I move the vertex in the direction the corresponding front surface is pointing? (The front surfaces can also be in a separate vertex group. They would have the same # as the "spikes)
Is this at all doable with geometry nodes?
Thanks for any suggestions.