Questions tagged [fcurves]

The tag has no usage guidance.

52 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
5
votes
1answer
696 views

Is there a way to make baking sound to F-curves more accurate?

At the moment I've got a script that generates a bunch of bars, and bakes a narrow range of frequencies to each bar's Z scale. It ends up being a pretty simple spectrogram that I composite onto the ...
3
votes
1answer
403 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. ...
3
votes
0answers
46 views

Generate a f-curve from another one

How can I generate a f-curve from the upper and lower points of another f-curve? (check out the image as example, I want to generate the green f-curve from the red f-curve) Thank you :)
2
votes
0answers
115 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 ...
2
votes
0answers
247 views

Efficiently creating noise in animations

Organic animation in Blender looks a lot more convincing when everything has a bit of jitter to it. I'm trying to find an efficient, clean way to do this. F-Curve modifiers are the obvious solution, ...
2
votes
0answers
134 views

How to restrict frame range for multiple F-curves at once?

I have lots of f-curves(~100) cycle modifier applied to and I want to restrict same frame range for all of them simultaneously. is it possible to make it? coz I feel pain to restrict same frame range ...
2
votes
0answers
125 views

Why does undo select all channels in graph editor?

I select any channel (with only show selected option or\and with show only selected curve keyframes option on) then modify keyframes on f-curve, then press CtrlZ for undo and all channels become ...
2
votes
0answers
126 views

Facial tracking

I've been playing around with facial tracking. Placing markers on my face, then tracking it in blender. Once I hit "Link Empty to track" It creates the markers and they follow my facial movement. Each ...
2
votes
1answer
148 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?
2
votes
0answers
55 views

Armature transform matrix

I have a question about how to place bones in a right position. Let's say I have 3 bones root, mid, and last. And root is a parent of mid, mid is a parent of last, and last is the very end. As I know ...
2
votes
0answers
692 views

How do I smooth out an f-curve?

So maybe it´s a dumb question to the more experienced users, but I´m a noob at animating, so I tried to make a Basic intro(basically a world where there is a simple camera movement to the text which ...
2
votes
0answers
130 views

Tracking one strip, to another?

I've got one of my Video strips in the Video editor fully 3D-tracked by motion tracking. I wanted to add another video strip on top of it, following the track and being stabilized in the movie. How do ...
2
votes
0answers
46 views

Addon executes only after left click on window

I have written a script that interpolates the beginning and end keyframes of an animation intended to be cyclic in response to my own question here. The addon executes just fine, but only after ...
1
vote
1answer
23 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 ...
1
vote
0answers
70 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-...
1
vote
0answers
35 views

Fluid Obstacle while animated by modifier

I'm new to 3D animation, and was trying out Blender. I've come across an issue that I'm not sure how to fix. I wanted to try throwing fluid onto a subdivided plane, whose vertex's are being moved by ...
1
vote
0answers
41 views

Noise distribution used by F-Curve Modifier

What is the distribution used by Blender to generate the random noise patterns in the F-Curve Modifier?
1
vote
0answers
160 views

I’m looking for some new ideas to make a full talking character

let’s say that I want to create something like this : https://www.youtube.com/watch?v=4qE72InFJrM this can be done easily with crazy talk animator,but we like to use blender,right ? let’s say also ...
1
vote
0answers
47 views

Is it possible to get fcurves associated to a bone by script ?

I'm working on a Blender add-on for transfering animation. I'd like to know if there's a way to select the fcurves describing a bone's movement through the bone. What I mean is that the only way to ...
1
vote
0answers
46 views

Write bone transform from fcurve animation data

I am trying to write an animation exporter and facing issue to write animation bone curve from fcurve data. And the animation looks stretched and not correct at all. Down here is the code to compute ...
1
vote
1answer
63 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 ...
1
vote
0answers
223 views

How to maintain interpolation when keyframing F-curve?

Inserting keyframe ruins Bezier interpolation. There is an option Sample keyframes, but it inserts keyframe for every frame - this is too much for me. How to do it without additional handwork? Top to ...
1
vote
0answers
238 views

Finding a specific fcurve!

I am trying to develop an addon that involves placing a keyframe on a specific fcurve (like for example the X Location) and then making changes to the coordinates of the handles of that keyframe (as ...
1
vote
0answers
906 views

How to make Noise modifier on f-curve loop?

I am trying to make a looping animation. I am animating the camera movement using the noise modifier of an f-curve. I would like my start keyframe and end+1 keyframe to be the same so that the ...
1
vote
0answers
60 views

How do I duplicate an action and change the F-curves?

I'm trying to write a script that duplicates an action. Ultimately I'm going to be generating an entirely new set of F-curves and key-frames but I thought simply removing all F-curves and re-entering ...
1
vote
0answers
215 views

Looping F-Curve Modifier?

I was wondering if there is a way to exploit the F-Curve Modifiers to create a seamless loop from a Noise modifier further up the stack. What I would imagine it would do is behave kind of like the ...
1
vote
0answers
46 views

Tie an animated tail flap to Z position change

I have created a (frighteningly realistic) swim cycle for an object, and then added a path. The object follows the path using a constraint: as it swims along the path, the tail flaps. I then added ...
0
votes
0answers
14 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 ...
0
votes
1answer
8 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 ...
0
votes
0answers
60 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? ...
0
votes
0answers
21 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 ...
0
votes
0answers
15 views

How do I turn keyframed animation curves back into bezier curves?

I've been handed some files where all the animation curves have been baked down into individual frames. Does anybody know of an easy way to turn these back into curves? And if not, why not? Seriously,...
0
votes
0answers
11 views

Can one define new interpolation types for F-curves?

I'd be happy if there were a way to define a new interpolation type (beyond constant, linear, and Bezier) for F-curves - let's call it ballistic and it is in fact "just" a special case of the Bezier ...
0
votes
0answers
20 views

Animation, I want to alter all the axis at once in the graph editor

Often times in animation, I want to tweak the handles of the curves of an animation in the graph editor to get the tweening effect I want.(I only move the handles on the x axis most of the time, ...
0
votes
0answers
71 views

How to set interpolation 'LINEAR' to keyframe on mapping node or similar node?

It is not clear to me how to access the fcurve of these keyframes, it is not very clear to me with regards to the nodes, I have found examples of objects. If anyone had any idea how to access it I ...
0
votes
0answers
7 views

F-curve and driver, why is the value of the curve is not on the graph?

I just move from 2.79C to 2.8. Trying to make switch for FKIK on the leg & feet. Using driver for it, but the value wont move on the cruve like it should. I cant seem to rotate the curve like I ...
0
votes
0answers
19 views

apply fcurve modifier type 'Cycles' to an entire scene

I want to apply fcurve modifier type 'Cycles' to an entire scene, with start frame 1 and end frame 249, so the entire animated scene loops. I want to do this with a script. How can I do this?
0
votes
0answers
9 views

fcurve editing bvh

Can one reset or revoke the changes to the fcurves of a bvh file? I am unable to find a method apart from pressing cmd/ctrl z innumerable number of times. Unfortunately there's no easy method of ...
0
votes
0answers
9 views

Discrepancies between rotation mode context and fcurve

One of the problems in Blender is often the discrepancies one encounters in details. For example even though I can change the coordinate system from quaternions to Euler etc through the rotation mode ...
0
votes
0answers
29 views

How can i get the Driver Value? (which is displayed in Debug info)

Hellow, Please tell me how to get the value of the driver, which is displayed in Debug info. blender 2.79. F-Curve.evaluate(frame) - this value after all modifications, and I need what is in this case ...
0
votes
0answers
59 views

Is it possible to export a Blender f-curve noise modifier to another program?

I have a Blender background that looks like a stone wall illuminated by a flickering candle. The light source was made to "flicker" by putting a single keyframe at the light source's Energy Value, at ...
0
votes
0answers
54 views

Linking material emission value with light power for easy animation

I have a flickering lightbulb. It consists of a point light and a lightbulb mesh with an emission material for when it's on. I'm using a noise modifier to variate the lightbulb power, but I'd like to ...
0
votes
0answers
38 views

Global bezier adjustments across multiple axis within Graph Editor

Happy to join the forum. I'm looking to globally adjust bezier curves in the graph editor with little success. I come mainly from an After Effects who's graph editor allows you to drag and select ...
0
votes
0answers
28 views

Moving of frame intervals for F-Curves modifiers

Blender 2.79b on Ubuntu 16.04. I have dozens F-Curves with Noise modifier. I use option “Restrict Frame Range” on N-panel for each of them to set particular frame intervals where modifier must be ...
0
votes
0answers
25 views

Use set of VSE stripes with f-curves as template

Blender: 2.79 OS: Linux I make series of video (Teaching, News, Vlog) and make set of "decorations" Titles (Video Topic, Speaker, credits ...) with nice fade-in and fade-out, semi pransparent blocks ...
0
votes
0answers
121 views

animation of two object using csv file

i have two different mesh in blender and i want both of them move independently using different f-curve at same time and using different csv files but i am not able to do that. Is there any way to do ...
0
votes
1answer
48 views

How can i see if my flickering light is working right without rendering the animation?

I have a flickering light using f-curves. Is there any way to judge the strength of the flickering without rendering the animation over and over?
0
votes
2answers
336 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 ...
0
votes
0answers
460 views

Modifying FCurve values on armature bones via python

I have this script, which does what i need with object actions. ...
0
votes
0answers
35 views

Moving an object in a specific way

Is it possible to show an f-curve in an animation to show how the object moves as the frames progress? I want to show how the object moves in the animation as well as show it's position on a curve ...