Questions tagged [fcurves]

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2
votes
1answer
21 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 ...
0
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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 ...
3
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1answer
39 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 ...
1
vote
1answer
22 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 ...
3
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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. ...
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 ...
0
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1answer
14 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 ...
1
vote
1answer
19 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 ...
0
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1answer
43 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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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? ...
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
1answer
2k 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 ...
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 ...
0
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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
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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
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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 ...
1
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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-...
0
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2answers
335 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
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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
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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?
0
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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 ...
5
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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 ...
0
votes
1answer
42 views

Restore Graph Editor F-Curve Filter Location

Moving to 2.8 I realized that the search bar for F-curve filter is now located inside an extra menu as shown below: This is very counter-productive as animating requires you to filter out many curves ...
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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
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1answer
25 views

Any way to avoid fcurves in scripting animations?

I am trying to use blender to animate spheres I am controlling with a python script. I already have the position data I want for each sphere at each frame of the animation. I don't need keyframes with ...
0
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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?
1
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0answers
14 views

How can I stop a cyclic animation? [duplicate]

I animated fish that are swimming in a tank with cyclic fin movement. Now I want the fish to die and their fin movement to stop, but I cant get the cyclic animation to stop without the cycle to ...
1
vote
1answer
886 views

Simplifying animation F-Curves in Blender 2.8

I can’t find out how to use the Simplify Curve add-on on animation F-Curves in Blender 2.8. I’ve activated the add-on, and in the 3D view the parameters are changeable when operated on a curve object....
0
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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
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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
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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
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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
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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 ...
1
vote
1answer
183 views

Making trails in a curve mesh created by the Animation Nodes add-on

I've asked the question before in here: Creating trails using Animation Nodes by delaying the frame of the following polygons . This was for making trails, but for objects only. I realized I want to ...
1
vote
2answers
97 views

is it possible to cycle only some keyframes in the graph editor?

I am creating an animation with lots of cycles and it would be nice to use the cycles modifier in the graph editor but to only affect some keyframes and not the whole thing because I have different ...
0
votes
1answer
43 views

How could I have an object's Z axis align with the first derivative of is location F-Curve

I want an object to follow a path in space (specified via F-Curves, or by clamping to a Bezier curve), but I want the Z axis of this object to always be tangent to this trajectory (the same way that ...
0
votes
1answer
22 views

How can I find an specific F-Curve given an action name?

Given action name, a data path and an array index, how can I find the F-Curve associated to that action?
0
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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
1answer
1k 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 ...
0
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0answers
37 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
1answer
146 views

F-curve modifier animation - whole values only

Is there a method to have the graph editor only use whole values between key frames? I've tried linear interpolation as to remove any ease in/out. For example: I have key frames at frame 1 and 100 ...
0
votes
1answer
37 views

How do you edit an f curve modifier?

I added a noise f-curve modifier to a graph, but it's too jittery. How can I lower the amplitude and frequency of the noise?
0
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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
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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
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2answers
168 views

FCurve handles to 3D Bézier spline control points

I'm trying to export Bézier curve animations from Blender, but i can't seem to figure out how the control points of FCurves should be interpreted. A Bézier keyframe for a 3D position typically has ...
0
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1answer
17 views

Is there a way to restrict the operation of a driver or even record the action of the driver in Blender

I have a small animation playing and I have made use of some trajectory equations in order to obtain a more realistic jump in the form of a driver, but I also want to add some additional movements to ...
0
votes
1answer
269 views

How can you invert an F-Curve

Basically I have a lamp moving on the Z axis according to a sound baked, then unbaked F-Curve, the problem is it's moving the exact opposite way I need it to, and so I believe I need to invert the F-...
1
vote
1answer
218 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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0answers
114 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 ...
1
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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 ...