I try to apply these effects shown in this screen. But I couldn't complete it. As far as I can see, Wintermute hooks the Empty to the Plane and do some scale changes on it.
Original article - Bar graph transition
Video tutorial
I tried lots of options to hook and try to change its scale like him but I failed. The closest result I get it with is the Stretch to option of Object Constraints. How can set it properly?
I don't know where you failed, but according to your blend ...
You created a vertex group "hook", but you didn't Assign two top vertices to this group.
When you Assign two top vertices to Plane, position Empty on top Plane's edge, add Hook modifier, set Object > Empty and Vertex Group > hook
Than Duplicate Plane (so you don't have to set modifier for each) and change Strenght value for each 1 / 0.8 / 0.6 / 0.4 / 0.2
Now when you move Empty along Y axis bars are scaled accordingly ...
This isn't a direct answer to your question, but it may be an option.. If a bar-graph wipe is what you're looking for, you could do it with a relatively simple shader, rather than geometry and hooks. It might be more flexible.
You would make a node tree which makes a mask by asking whether Y is less than some function of stepped X. Here, the range of X is the 0-1 of the Generated texture-space of a plane, stepped by a Map Range node.
.. which generates a mask something like the one below. In this case, f(X) is the cosine of pi*X, and the animation results from directly messing with the amplitude (Y scale) and Y offset of the function, in the Multiply Add maths node, and keyframing those values. But it could be any function you like, animated in any sense.
If you did want to control the graph using the position of an Empty, you could use a cluster like this, somewhere in f(X):
.. which will return the X of the Empty, in the plane's space, in Blender units. (If the plane is scaled in Object Mode, the units will scale with them).
If you want color, or some other per-bar attribute, you can pipe the noodle labelled 'Color Branch' in the first illustration through a Color Ramp, and multiply with the mask:
what you are trying to achieve is that bar graph look? In the tutorial time skip it skipped to the triangle one which was the last one not the bar graph.
Anyway with the actual blender itself. I saw the end result of the animation and made it myself in blender. Also the thing you missed im pretty sure is the vertex groups.
Make sure you make a vertex group of only the single line otherwise the mesh wont deform like it did in the video. Just make sure you did all the steps correctly. Heres a video of me doing it:
https://www.mediafire.com/file/v7a17ku510z9dm9/asdasdasdasd.mp4/file i compressed it alot using movie maker. Does anyone know a better method of showing videos like this other then this way?
