Questions tagged [fcurves]

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1answer
217 views

Is there any way to insert f-curves keyframes by script?

I'm writing a python script for animation in Blender and I'm looking for a way to insert keyframes automatically. So far I have: ...
2
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1answer
566 views

What has caused this f-curve to be inactive?

The f-curve for the Y location is still there, but it isn't working. I must have clicked or pressed something without realizing, but I can't find what. It shows up in white with all its keyframes ...
0
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1answer
178 views

create in python a specific F-curve

Recent versions of Blender do not generate any type of F-curve. In particular, after inserting a key position image on the object, I would like to enter: ...
2
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1answer
298 views

Best sound baking settings

I'm building an audio visualizer in Animation Nodes. It's working well, but there's always just a strong peak, rather than well distributed activity across the board. I've been trying various ...
0
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0answers
165 views

Objects not following curve [duplicate]

I'm having a bit of a trouble with the curve modifier. The object seems to not be following the curve. I have checked other threads and posts about the similar problem, and I followed their given ...
3
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1answer
400 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. ...
1
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1answer
117 views

Can't animate keyframed node properties with f-curve - they are disabled

I need a 'pulsing' light in my scene, so I have animated a material's emmission strength over a few frames and keyframed that with 'I'. I want that infinitely repeating using f-curve since I need it ...
0
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1answer
195 views

How to create and assign a group to an fcurve with python script?

I am attempting to make an addon/script with blender python that works with mocap files (.bvh), my problem is that when the files are imported the group collection on fcurve.group is blank ...
0
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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 ...
2
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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
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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 ...
0
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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?
1
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1answer
693 views

How to bake multiple audio sounds to f curve?

I want to add three different audio clips to same character's mouth using bake sound to f curve. But I am able to add only one sound clip. when i try to add second clip, it replaces the first one. ...
0
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2answers
334 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 ...
1
vote
1answer
441 views

Simulate POV Walking Camera

I have been struggling for a while to try to solve this problem. I need to make a POV camera, it needs to simulate a walking person going up on a hill. I need the camera to move up&down as loop (...
1
vote
1answer
167 views

Access only filtered/visible F-curves through python in graph editor

I'm looking for a way to be sure a script affect only f-curves that are showing up to the user in the graph editor (post filtering) for WYSIWYG style control. In details: Currently I'm getting the ...
2
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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 ...
0
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1answer
1k views

Same animation to different objects

Say I've got a dozen meshes and I want to animate some features that any mesh can have, regardless of their topology: render visibility, number of subsurface iterations, intensity of a displace ...
5
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2answers
800 views

How to make a wiggly animated curve?

I'm trying to make a curve move in sort of a worm-like fashion, and I'm not able to get it to move properly with F Curve modifiers. Basically, I want it to move in a looped "s" shape pattern. How ...
0
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3answers
440 views

How do I go from BVH to a working F-Curve?

I found a BVH I want to use by first checking the motion in BVH Hacker, I import it into Blender, delete the rig the importing generated, select my character, then choose the BVH from the F-Curves ...
1
vote
1answer
194 views

Recreating the Animation Nodes FCurve Animation Offset Template

Hi i've been trying to find a way to create and control traffic (thats also flying) in a large futuristic city scene. To do this I'm trying to re-create an old animation nodes template that I feel ...
-2
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1answer
640 views

No bezier handles showing up in F curve editor

Please help there are no handles at all. I've set the interpolation to Bezier a million times nothing is happening please help.
3
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2answers
796 views

How to change an FCurve value in Python

Someone asked for the functionality to change multiple fcurves at once (f.e. Loc X, Loc Y, Loc Z). Now I managed to get all selected Fcurves in an array but I can't find any way to change their ...
3
votes
2answers
431 views

How do you visualize changes animations in the graph editor?

This might sound stupid but I think I've looked everywhere for a good tutorial and explanation on the graph editor, but I still don't fully understand. I know that generally, it's the main animation ...
4
votes
1answer
2k views

Loop Actions with a Cycle F-modifier

I am about to create a ~3 minutes long forest scene with some rabbit roaming around. I created a rabbit with two animations: Sit, Walk. I then created a curve and key framed the evaluation time so ...
1
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1answer
45 views

BGE register new Action

I wanted, for a game with level editing capabilities, to create an Action (animation fcurves) from scratch and assign it to an existing Action actuator. However, when the Action is created at runtime ...
1
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1answer
116 views

What does path_from_id actually do?

I learned to use object.path_from_id(property) to obtain the path for my fcurves. But when I did this: ...
1
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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 ...
2
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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
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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 ...
1
vote
1answer
1k views

How to select the fcurve of a material

I have a fcurve assigned to a material, but for some reason it neither influences the Offset, which it should be, nor shows up in the Dope Sheet or NLA Editor. And actually, the X-Offset is only ...
1
vote
1answer
288 views

How to specify multiple restrict frame ranges for the F-curve Noise modifier?

It's a simple problem but one I can't seem to get my head round. I'm using a noise modifier which seems to perfectly mimic a realistic rotation of some equipment I'm deploying. My problem is I need to ...
1
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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
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1answer
225 views

Multiplying with positive and negative noise modifier

I have a baked f-curve, and I also have a script to unbake it. I want to multiply this f-curve with positive and negative noise, however, the noise modifier only uses positive and negative if I use ...
0
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1answer
416 views

Bake Follow Track constraint to f-curve?

I have an empty with a Follow Track constraint so it copies the movement of a track point in the Movie Clip Editor. How can I "apply" the constraint to the object so I can see the f-curve of the ...
0
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1answer
267 views

Scale F-curve from time/ 3D cursor

A while ago I saw a demo where the f-curve could be scaled from a specific point in the time line - if I remember correctly determined by the 3D cursor - but I have not been able to recreate it. What ...
1
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0answers
222 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 ...
3
votes
1answer
715 views

Delete specific fcurve in python

Hello all blenderheads ! i'm trying to write a simple tool to split a frame in piece with the great animated render border addon ! so far so good, all's working but i need a way to delete the created ...
1
vote
1answer
215 views

Round values of a f-curve to be either 0 or 1

I would like to transform my baked f-curve in blender. I already scaled it so it's values are between 0 and 1 using the envelope-modifier. Now i want to transform the f-curve in a way that all values ...
2
votes
1answer
771 views

How to get xyz coordinates from f-curve

We are doing research on monitor human activities to avoid adverse events. In part of it, we did an experiment in our MoCap lap to detect the human motion to monitor his activities. We have f-curves ...
2
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0answers
691 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 ...
3
votes
1answer
545 views

Exporting animation F-curve points from the Graph Editor

I have an animation consisting of translation in X and Y and rotation along the Z axis. Each of these Bézier curves consist of points, such as the black points in the picture above. Each of these ...
2
votes
1answer
540 views

How to change the rotation of an already existing animation?

I need to change the rotation of an already existing animation, it currently only goes forward but I also want it to go up and down. I know I can use R to rotate ...
0
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0answers
460 views

Modifying FCurve values on armature bones via python

I have this script, which does what i need with object actions. ...
0
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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 ...
1
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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 ...
0
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1answer
293 views

What are the formulas governing blender's exponential easing for animation fcurves?

I was trying to animate something that was scaling exponentially, so I created an fcurve with two keyframes and configured it for exponential easing. It did not behave as I expected. Consider two ...
2
votes
1answer
119 views

Why is “create snapshot (ghosts)” disabled? (baked sound F-Curves in Graph Editor)

In VSE I have inserted a sound clip and added two custom properties. This is purely so I can bake different frequencies as F-Cruves which greatly helps with aligning video with music. I want those ...
0
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1answer
210 views

F-curves disappeared but keyframes still work

Perhaps another basic question about a mysterious disappearance. I am using Blender to edit video, and my F-curves have vanished. The keyframes are still visible and apparently functional in the ...
1
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1answer
385 views

Can F-Curves be used to define interpolation between keyframes?

What I'm trying to do specifically is animate a punch. With the default Bezier curves, the interpolation between the "wind-up" and "contact" poses gets eased in AND eased out. This effectively makes ...