Questions tagged [fcurves]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
1
vote
1answer
345 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 ...
2
votes
1answer
92 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 ...
1
vote
1answer
1k 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 ...
0
votes
0answers
28 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 ...
0
votes
1answer
65 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. ...
3
votes
1answer
127 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 ...
0
votes
0answers
34 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?
0
votes
0answers
28 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 ...
0
votes
1answer
271 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 ...
1
vote
1answer
50 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 ...
1
vote
1answer
305 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. ...
2
votes
1answer
154 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 ...
1
vote
2answers
429 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 ...
-1
votes
1answer
111 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
votes
1answer
228 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 ...
1
vote
2answers
506 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.
0
votes
1answer
1k views

How to copy F-Curve Modifier(s) from one object to multiple objects in Blender 2.8x

I have an object that animates to float up and then starts slowly rocking in mid-air. I achieved this by using the Noise modifier for the different location/rotation values and it looks good, my ...
0
votes
1answer
157 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 - ...
0
votes
1answer
174 views

Light point power keyframes not showing up in graph editor

Title is self explanatory. Trying to simulate flickering light via light power keyframes but there are no points in the graph editor even though i can see them in the dopesheet, timeline etc. For ...
0
votes
1answer
353 views

Is it possible to make the f-curve noise modifier's scale into a variable?

Normally the scale value in the noise modifier is a constant. It cannot be animated. Is it possible to make the scale value decrease over time. Something like the picture below: Any idea or ...
0
votes
1answer
56 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 ...
2
votes
1answer
154 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
votes
2answers
102 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
votes
1answer
205 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
232 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 ...
0
votes
1answer
201 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
33 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 ...
2
votes
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
votes
1answer
163 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? ...
3
votes
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-...
0
votes
0answers
152 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
1answer
98 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 ...
0
votes
1answer
59 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 ...
1
vote
0answers
64 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 ...
0
votes
0answers
195 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 ...
1
vote
2answers
416 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
190 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
52 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
votes
0answers
198 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 ...
1
vote
1answer
485 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 ...
0
votes
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 ...
1
vote
1answer
2k 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
votes
1answer
495 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
255 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
votes
1answer
32 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
925 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-...
11
votes
1answer
311 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
vote
0answers
103 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
44 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?
4
votes
1answer
149 views

How to change order of F-curve's modifiers?

Is this possible at all? Because UI isn't obvious in this case.