Questions tagged [fcurves]

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how to display f-curves that are not showing

When i insert a keyframe to the emission strength of material "light_red" in image 1(yellow in the bottom right), a keyframe is added to the graph editor image 1: However when i add a ...
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12 views

How to show scaling keyframes that are not appearing when adjusting f-curves?

I am animating the camera movement for my scene. The scaling option for some of my keyframes do not appear on-click when adjusting f-curves in the graph editor. The problem is depicted below: Image 1: ...
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1answer
16 views

Is it possible to scale F-Curves linearly?

In the graph edutor, I press S then Y then 2. It doesn't multiply the x location of the key frames by 2. Instead, it multiplies every single key frame by a factor and I don't know what is this factor ...
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11 views

Is there a way to return what axis a keyframe point is associated with? [duplicate]

I have a very simple animation. I move the default cube from one location to another along the x axis. This gives me six keyframe points, the start and and stop locations of the x, y and z axes. ...
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1answer
12 views

“Make Cyclic F Modifier” is making my animation cycle go out of sync

I'm trying to make an infinite cycle of a swimming cycle but and am using an f curves cyclic modifier to make the cycle. The cycle works for the first few minutes but then slowly falls out of sync. ...
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13 views

How do I check if a F-curve is baked and therefore locked for future keyframe insertion?

I'm currently developing and add-on in which I'm finally baking the keyframes to a desired f-curve. Once baked I can't insert new keyframes into that f-curve as it gets locked when baked. Is there a ...
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5 views

Animation Curves not responding to Easing Type

I am trying to tweak camera movement, and while I could drag the handles, is there a way to automate this process? Anything similar to other programs, e.g. After Effects (fn+F9)? For me, when I click ...
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1answer
11 views

How do you use an F-Curve with negative values?

I want to use the start to finish values of -1.7 -var = (driver value = 0) to -2.7 -var = (driver value = 1) I've always done it in the expression as a math formula but I never learned to use the F-...
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1answer
26 views

I can't apply any modifier to my animation channel

This is blender 2.9. I'm trying to loop an animation using the cycles modifier but I can't add it to all axis, as you can see on the images below. It only worked for the z-axis, and it didn't work in ...
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20 views

How Do I Recursively Offset F-Curves Along a Bone Chain?

I am searching for more efficient ways to FK-animate long bone chains, such as for tails and snakes. One thing I like to do for wave-like motion is keyframe the rotation of the first bone, put it on a ...
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1answer
26 views

How to reset animation curves in graph editor

I changed up the curves in the graph editor however i would like to reset them back to automatic interpolation. I dont know how to do this and I cant seem to find a solid answer
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20 views

Creating a solid with one side as a low poly randomized surface

new to 3D modeling & Blender, hopefully I'm describing this in the correct way. I'd like to take an arbitrary shape (I've been playing around with curves, eventually want to import an svg that ...
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2answers
30 views

No animation in Curves on using Bake sound to fcurves

In Blender2.9 , on adding location drivers to the origin of a Curve, there is no animation eventhough the location values are generated by baking sound to fcurves. ...
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1answer
77 views

How to find out the exact Frequency of F-Curve Modifiers

I want to create harmonic looping animations using the built-in functions for F-Curve modifiers. Example: move an object back and forth along the z axis in a sine motion. In order to make a perfect ...
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25 views

Accessing FCurve from context returning None

I'm trying to write a simple function that will select the keyframes in-between 2 frames and have got the following: ...
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1answer
69 views

Populating Fcurves Keyframe_Points

I am currently working on an importer for captured Shape Key motions. To fasten up the process, I am using the method suggested here. It works perfectly and saves up to a few minutes per import. I am ...
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32 views

How to make curved street with diffrent heights and an uturn?

Hello everybody. New here and at Blender. As you can guess in the picture, I try to create a road with an array and two curve modifiers. After the first elevated road curve, the road should be higher ...
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82 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
66 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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43 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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38 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
124 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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56 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
72 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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1answer
394 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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8 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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23 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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24 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
51 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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1answer
72 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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16 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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14 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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24 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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29 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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51 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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27 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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18 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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38 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
92 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
44 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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10 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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8 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
209 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
89 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
170 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
74 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
130 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 ...