Questions tagged [fcurves]

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2answers
1k views

F-Curves disappeared

Before this is marked as a duplicate, I understand that similar questions have been asked both here and here, but their answers do not solve my problem, so I feel the need to ask as I can find no ...
3
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1answer
629 views

How to edit xyz F-Curves at once?

Is there a way to edit/move multiple f-curves (xyz) at once? I am editing a Cube and got it to scale up. To get a feel for the right timing, I'd like to edit all xyz f-curves at once during playback. ...
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1answer
46 views

Zipper along complicated curve issue

I tested out other answers here and here to no avail. So, I'm stumped. In the image below, I'm trying to get my zipper to follow along the curvy, windy path of the leather cowl/collar. You can see the ...
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0answers
15 views

F-Curves and mirrored keyframes

The image above is the x-rotation of two bones in a walk animation that should be mirrors of eachother. The animation is 120 frames long - each foot walk cycle is 60 frames. As you can see, the bezier ...
1
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1answer
85 views

Load animations into custom engine

for learning purpose of 3d animation, I picked blender to study. So far I've exported .blend to .lua file that contains mesh data, bones, and animation data. My animation data is fcurve arrays based ...
4
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2answers
3k views

Curve Editor — Move 2 Handles the same time

I am quite new to blender and started out to do some animation with shape keys. That is working quite fine so far and now I would like to make that whole thing a bit more vivid. Therefore I would ...
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1answer
25 views

Bevel object doesn't work

could someone help me with the following issue? As you can see by the screenshot above I can't extrude the path using the selected profile. Both the items are curves and I have applied Rotation&...
3
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1answer
1k views

Remove F-Curve Modifier from all selected keys in Graph Editor

I added an F-Curve Modifier (Shift Ctrl M) to all selected Curves to repeat the animation. Now I want to remove this F-Curve Modifier from all the selected Curves/Keys. Is it possible to remove the F-...
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0answers
25 views

Problem while running Fcurve smoothing from terminal

I am facing a problem when trying to run my script for Fcurve smoothing form terminal. I have read that some operations are not supported when running Blender in the background. Moreover, ...
11
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1answer
329 views

Set Active FCurve in Graph Editor through python

I'm trying to set an FCurve in the Graph Editor to "Active" through python. In the API FCurves don't actually have an "Active" property, but manually click-selecting a channel or keyframe on an ...
0
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1answer
172 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
10 views

Apply specific function as modifier on f-curve

I am a complete beginner in Blender and 3-D Modelling in general. Currently I am trying to understand f-curves and what you can do with them, because I mainly want to create Audio Responsive ...
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0answers
18 views

Scripting f-curves

I'm trying to write a python script to programmatically assign location and rotation values to keyframes based on a csv file that I am ingesting and parsing. When I hardcode in the frame number and ...
2
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4answers
2k 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 ...
0
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1answer
16 views

Unify rotation direction on f-curve

I have used the bake action operator on a rig. Unfortunately if the rotations are too and fast the direction of rotation is getting the opposite direction. Do you have any idea, how to easily fix this?...
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2answers
112 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 ...
1
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0answers
30 views

How can I bake sound to f-curve but use pitch instead of volume?

I am doing a blender project to music and I have animated it to change with the music using the bake sound to f-curve function, but I need it to change using the pitch as the variable, instead of the ...
1
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1answer
15 views

need my F-Curve sine modifier coming full circuit on Nth frame

How can I determine the exact Phase Multiplier for an sine/cosine F-Curve modifier so that my animation ends up in the exact beginning location on the last frame of my animation? I want to be able ...
0
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1answer
158 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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0answers
13 views

How to get a key or data of a vertex of a curve using a ray cast?

I have curves where 2 or more curves share the same position and i I want to know those keys or identified of every point with a raycast, but ray cast just works with meshes, do u know how to use ...
0
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1answer
62 views

Two origin points for simple deform

I want to bend a beam keeping the endpoints rooted on the x-axis but curving upward on z-axis. I tried to set two origin points on each end of the beam but was unsuccessful. Is there an alternative ...
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0answers
60 views

How to use the Envelope F-Curve Modifier in Blender 2.93

I would think that defining a range of a minimum and maximum of f-curve values would take only 2 variables: your minimum and a maximum and that should be enough to scale the f-curves so that they are ...
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0answers
65 views

Issues with F-Curve to bake sound frequency?

I am trying to bake the sound with some force field empty and a sphere, making them react to certain frequencies, following the tutorial posted in this link: http://barneyisbo.blogspot.com/2013/11/...
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0answers
22 views

Where to find Fcurve's 'enable modifiers' (wrench) attribute with python

As i'm working with custom fcurves in the Dopesheet, i wanted to use that little wrench icon to control something. It was easy to find fcurve[0].lock and ...
3
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2answers
58 views

Copy all attributes to curve by Python?

the question is simple - how to copy all the attributes of the curve data to another curve object by python? I need to make it look the same - same cutom bevel, same extrude, same offset... same ...
1
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1answer
30 views

Adding properties to bpy.types.Fcurve (monkey patching)

I'm trying to add a pointer property to the FCurve type, which has to point to a specific GPencilLayer type. So far, here's what i tried without success : i firstly tried to add a single attribute to ...
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2answers
5k views

Can't find active f-curve panel

I just started Blender 2 months ago and i'm having a great time. I'm trying to add a noise f-curve modifier to my camera movement to create shakiness for a toaster animation kind of thing. However ...
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0answers
12 views

cannot add driver for fcurve noise values

I am not able to add any driver to this noise-modifier values. Ok, i can accept that it is that way. But until now nearly every value i could "drive" with drivers. Is there a special reason ...
0
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1answer
78 views

Delete armature bone specific keyframe using python

I'm trying to delete a specific keyframe at a specific frame in an animation action, I've tried both fcurve.keyframe_points.remove(keyframe) and ...
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0answers
38 views

Re-align imported animation keyframes to blender frames

I've imported a motion capture armature from an fbx file, the problem is whenever I check the action number of keyframes for any fcurve they are much more than I expected from previewing the action ...
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0answers
24 views

Ceil or floor keyframe's time with blender API with python

I would like to ceil or floor all the key frames of an object in a manner that happens when you drag and drop them slightly in the Blender UI. Example images of what I mean: Then I drag and drop the ...
1
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1answer
31 views

Mapping a textures z location from [0 to -40] to [0 - 1] for baking baking sound to f-curve

First off, I am not sure if I'm asking the right question. I'm a modeler first and foremost. Its all I know :) I make music visualizations. Normally, to bake a sound to a value, I press "i" ...
2
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1answer
53 views

Determine if fcurves cannot be evaluated from Python

I'm trying to detect fcurves that are "errors" (the ones with the red underlines): I've tried code like this: ...
3
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1answer
196 views

FCurve Noise modifier: set "Offset" value using Python

First of all: excuse me for my terrible english. Is there any way to set "Offset" value of "Noise" modifier in Graph Editor using Python?
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0answers
45 views

Curve looking weird, maybe missing vertex?

I'm pretty new to blender, just learning. I followed tutorial for a chair and everything was going well up to this point, when one of my curves is really bad.. I don't know what I messed up and don't ...
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0answers
22 views

Displacement on single vertex inside of a mesh

I am currently trying to make individual joints (vertexes) on a human figure move based on an audio file. I've done this for objects in the past for nonspecific movement by using a displacement ...
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0answers
46 views

Graph Editor & F-Curve Modifiers for Material animation

How does one access animation data in Materials in the Graph Editor, so as to better observe Interpolations and use F-Curve Modifiers ?
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2answers
551 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.
-1
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1answer
13 views

How do you find the y_axis of a pose bone in specific keyframes in a script?

How do you find the y_axis of a pose bone in specific keyframes in a script?
-1
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1answer
115 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 ...
0
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1answer
36 views

Continuation of existing curved edges to close mesh body

I’m totally new to blender; this may be a really obvious question! I just wondered if anybody can help. I created this mesh body I then smoothed the vertical edge vertices.This had the desired effect ...
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2answers
41 views

Evaluate FCurve without keyframes won't work

i'm stuck here, i'm trying to evaluate a newly created FCurve to get the current value of associated property, and keep getting "0". Here's an example working code with scale: ...
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0answers
50 views

Skeleton mirror breaks when applied

I downloaded the Unarmed Equip Torch 01 animation (skeleton only) from Mixamo and wanted to mirror it so the torch was in the right hand (and then I noticed you can mirror it right in the web, but let'...
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0answers
14 views

graph editor: how to insert a key at frame along f-curve

I can't find the magic to insert a new key along an existing f-curve, using 3d-viewport, graph, dope or timeline. The only insert that works is "Selected Channel at cursor", but this ...
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0answers
59 views

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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0answers
13 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: ...
1
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1answer
33 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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0answers
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. ...
2
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1answer
31 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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0answers
18 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 ...