Questions tagged [fcurves]

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18 views

How to smooth out baked sound to f curves?

Ok, I have several scaling animations synced to audio via "Bake sound to f curves" and I've applied an envelope modifier to control the max value the curve can hit. The curve looks like this ...
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1answer
30 views

How can I delete the same animation/curve channel from all selected objects?

I'm trying to delete some specific channels from many objects. I select them but the dope sheet requires me to expand the Action and Transform menus from each object, then selecting each curve and ...
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27 views

How to get evaluated driver value for certain frame?

I've already got an answer of how to get evaluated keyframed property value but this doesn't work for drivers in the same way. I've tried to get it with ...
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20 views

Can't keyframe shape key

I have made an animation using shape keys and the "Bake Sound to F-Curves" option and now when I try to keyframe the shape key I get this error: ...
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1answer
23 views

How do I curve an edge? Bevel not working!

can someone help me with curving an edge? I have a giant spiral and want to make it round instead of being made up of straight lines. Bevel does nothing so guessing there must be a way of selecting ...
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33 views

Shape key f-curve animation to action

I am trying to make a character talk without having to animate it by hand. I made a shape key and used the "Bake Sound to F-Curves" option to do this. The character talks just as I wanted ...
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1answer
61 views

Python. How to find a point on the timeline where Fcurve reaches a certain value without changing current subframe?

Is there any way to find out via Python at which point of the Timeline (at which subframe) fcurve reaches a certain value, without actually changing the current subframe? I have found out that it was ...
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18 views

How to change range of “bake sound to f curves”?

Alright, Im trying to modify the "damp" parameter of a particle system in accordance with the beats of an audio file. So far, I "insert keyframe" on the damp parameter, go to F ...
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7 views

Copy Restric Frame Range for F-curve modifier for multiple objects

I have 6 objects and I need to set a frame range for them and I do not want to repeat the range set for each object. There indeed is "copy to selected" when you right click (see the ...
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8 views

How to add ' FNGENERATOR' fcurve modifier

While trying to add trignometric fcurve modifiers with FNGENERATOR to a custom fcurve, the console gives the following error- ...
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20 views

Saving Fcurve to a file?

I've been using Blender to create a dataset for a machine vision problem. My current method is randomising the bone rotations of a hand for each frame (using Fcurves with the noise modifier), and ...
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18 views

Is there cyclic fcurve noise modifier?

I'm creating a cyclic animation, and I'd like to add some random jigglyness by using a f-curve noise modifier on one of the object's angles. This works quite well, but the noise 'jumps' at the repeat ...
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1answer
29 views

How do you use the Curves modifier to make a smile or different shape?

I was following along with Blender Guru's video on how to make a Teddy Bear, and I got to the point where he is talking about how he made the mouth. He uses a Bezier Curve and a Screws Modifier. ...
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28 views

Damp the movement of an animation curve

I am quite new to Blender. I am writing a script for a scientific study. So I want to do it in the script change the angles of a motion in order to have quantifiable data. I have been struggling for ...
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14 views

Check if node socket's default value is animated

I want to detect, from Python, whether the default value of a given node socket is animated. This includes keyframes/F-curves, but also drivers - anything that could change the value over time (except ...
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13 views

Blender moving f-curve Z location moves object diagonally instead of on the Z axis

This is what I have As you can see in my case when I move the Z location in the F- curve it moves it diagonally for some reason. I want to move it on the Z- axis. What am I doing wrong?
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17 views

How to Export this final product with Sound Animation to Unity?

Is there a way to export this animation into Unity, with all the material settings (especially the water droplets on the apple) AND movement intact from the "bake sound to f-curve" feature? Here was ...
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14 views

Can't see channels

I cant see anything and I'm not sure why these are all white. Has anyone had this problem before ?
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28 views

What is the formula used to generate random numbers in the f-curve “noise” modifier in the graph editor?

I'm using Blender to generate images of a hand in randomised poses for use in another program. I have done the randomisation using f-curves in the graph editor and the noise modifier in there. I need ...
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14 views

Deleting Bone causes faulty Channels in almost all Animations

I deleted an unnecessary bone in my armature, but Blender v2.79 does not delete automatically the associated Channels/F-Curves in the animations, causing the Animation to have faulty Data. How can I ...
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16 views

Moving noise curve modifier with keyframes

In my project, I made eleven noise curve modifier on different objects such as light. But now the problem is that I have to scale my entire scene to make my animation smaller. And the start-end of ...
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8 views

where is “Paste F-Modifiers” last action panel?

I would like to paste modifier to multiple f-curve from one which arleady have, And in another question I found I should check off "Only Active" at last action panel of Paste F-Modifiers. But I dont ...
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22 views

Is there a more efficient way to get F-Curves from tracking daa?

I have about 20 tracks of mocap data that I want to convert to F-Curves so that I can use the graph editor to calibrate and edit them when applied to bones in my rig. The only way I've found to do ...
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1answer
43 views

Keyframes won't appear in the Graph Editor window

I'm trying to make the light bulb, a sphere with an emission texture flicker, by using the Noise modifier using the F-Curve modifiers in the Graph Editor section. Now, I've split my layout into the 4 ...
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1answer
42 views

Effects of python script are not permanent

I created my first python script in blender, the purpose of which is to manipulate an animation. To be more precise, it loops over some F-curve and on some of its BEZIER segments, it changes the ...
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8 views

How to make Save own my Keyframe interpolation

Thank you first of all to be here to help me. I am working in blender since last year and currently i am in a project where i need to make the animations specifically add animation to a lots of ...
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5 views

How to copy a single f curve modifier from multiple f curve modifer

I have added f curve modifer for different frame ranges. Now i wan to copy but it copies all but I want to copy one of them. How to do it?
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1answer
143 views

Bake an fcurve with visual transforms

I want to duplicate an existing animation and bake it with visual transforms applied, something like what the default nla baker does. For simplicity's sake say I need to do this for a single bone. ...
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1answer
40 views

How to add a minimum value to f-curves

I want to make a plane change the scale to an audio signal. Now when I try using the bake sound to f-curve-function it obviously starts with the scale at the value 0. Is there a way to give it a ...
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8 views

f-curve with small frames distance: auto-joining off?

when I move (grab) a f-curve, two frames with a distance of 0.001 are joined to one frame. How to switch auto-joining off? Thanks Mike P.S. I try to move my ZigZag f-curve.
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2answers
49 views

How do I Auto-Keyrame ONLY changed values?

Even with the "Only Insert Needed" Checked, keyframes are inserted on values that do not change. By hitting "g" and "z" to move along Z axis, I only change that value, but keys are placed on the ...
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1answer
46 views

BAKE SOUND TO F CURVE option MISSING in blender 2.82?

My option under KEY in the dope sheet is missing the option to bake sound to f curves. Tried it on several scaling options on several objects but the option is totally missing. Is there a trick to ...
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1answer
66 views

Selecting a curve by its name with a Python script

Is it possible with a Python script to select the curve of an object with its name ("location x", "location y", "rotation z", ....) instead of its number. For example, I tweak the Z location of an ...
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20 views

How to adjust correctly a corrective shapekey?

I have a corrective shape key for the elbow, and an expression that uses the rotational difference to a helper bone setup as a reference, like the tutorial of rig tips 2 from auto rig pro: https://...
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1answer
98 views

F-curve modifier not working

Tried to apply noise F-curve modifier on the power of a light but it isn't showing up on graph editor. Not sure what the problem could be.
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17 views

What is the easiest way to get an object to move x amount of units every y amount of frames?

I've typically been doing the math manually (ie. needing something 6m every 9 frames so calculating the amount of frames I have then dividing by 9 and multiplying by 6). I'm terrible with drivers so I'...
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1answer
365 views

How to copy F-Curve Modifier(s) from one object to multiple objects in Blender 2.8x

I have an object that animates to float up and then starts slowly rocking in mid-air. I achieved this by using the Noise modifier for the different location/rotation values and it looks good, my ...
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1answer
126 views

F-curves: Generating transformation matrix

I have written an exporter for blender to use with my games, including hierarchical object data and animation curves. So far, I have only had a need to work with a subset of animation channels - ...
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30 views

Light point power keyframes not showing up in graph editor

Title is self explanatory. Trying to simulate flickering light via light power keyframes but there are no points in the graph editor even though i can see them in the dopesheet, timeline etc. For ...
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1answer
75 views

Is it possible to make the f-curve noise modifier's scale into a variable?

Normally the scale value in the noise modifier is a constant. It cannot be animated. Is it possible to make the scale value decrease over time. Something like the picture below: Any idea or ...
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1answer
24 views

Return active FCurve with python

i'm trying to write a little addon to help deal with FCurves modifier, and i would need to get the active modifier from active FCurves. So far i'm not able to return active FCurve in python, i don't ...
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1answer
69 views

How do I add an Fcurve Noise modifier with Python?

I am looking to add a Noise Modifier to a Node in the Compositor. I have added a keyframe to the Node but when I try and add the Noise Modifier, it's obviously not correct. I guess it's space_type ...
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1answer
26 views

f-curve modifier to an object that has an object contraint (track to)

I am working on a scene with a car chase and I am struggling with adding noise (rotation) to a camera that is tracked to an empty via object constraint. I have one camera that is static and tracked ...
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1answer
98 views

How can I create a snapshot of a curve in the Graph Editor (like Buffer Curve Snapshot feature in Maya)?

Maya has something called Buffer Curve Snapshot in its graph editor which allows to temporarily save a snapshot of a curve and then use it as reference when doing further changes to the curve. You can ...
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1answer
113 views

How to bake multiple sounds to f-curve to the same object

So im animating a characters mouth using shapekeys and baking them to an audio clip. I want to add three different audio clips to the same character's mouth using bake sound to f curve. But, when i ...
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1answer
45 views

How can I apply the same change to multiple channels in Graph Editor?

I'm a beginner and learning with a video course in Blender Cloud. I would like to apply the same modification to two channels such as the X Scale and Z Scale in one action in the Graph Editor. In the ...
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1answer
27 views

Rotate two points on f-curve by opposite amounts

If I have two points on a curve and I want to rotate the handles the same amount I can select both handles, choose pivot from individual centers and rotate them. However what if I want to rotate them ...
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2answers
658 views

Add F-Curve Modifier for multiple F-Curves at once?

I have a rigged and animated character with over 100 bones. Don't ask why, but I want to add the "Noise" F-Curve Modifier for the rotation and scale channels (F-Curves) of every single one of these ...
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1answer
105 views

Decimate f-curves using python

In blender 2.82 I want to decimate all the f-curves in active action, how can I override the context to make the script work with Animation Nodes Script Node? ...
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0answers
53 views

Proportional Keyframe editing

Hey guys I've been trying to get a script going for Proportional moving of keyframes to set values on a given frame (to help correct captured data). I've got an action in my scene I've started poking ...