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Questions tagged [fcurves]

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6 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 ...
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0answers
8 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 ...
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17 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 ...
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29 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 ...
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2answers
25 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 ...
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1answer
28 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 ...
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1answer
17 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?
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0answers
14 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 ...
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1answer
86 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 ...
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1answer
119 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
19 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 ...
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1answer
162 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....
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1answer
28 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 ...
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1answer
20 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?
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0answers
12 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 ...
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21 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 ...
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0answers
9 views

Applying the same fcurve to several emission sources

I have several light sources I want to flicker in sync with each other. I can alter each emission strength fcurve separately, is there any way to have all the emission fcurve data linked together? ...
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0answers
23 views

keyframing problem

When I put a keyfreame the curve changes like so: Is there a way to put keyframes without it changing like that? Like offset mode in source filmmaker?
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1answer
15 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 ...
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1answer
92 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-...
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15 views

Object not moving properly after F Curve sound bake, and then unbake

I don't know how to describe it, just watch the video. https://streamable.com/pcwfx
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0answers
55 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 ...
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0answers
10 views

Two armatures sharing action - Animations desynced

I'm creating an action for an armature in which a single bone from another armature is required. I was playing with some F-curves when the single bone stopped moving. I tried to assign the action back ...
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0answers
18 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 ...
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0answers
39 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?
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1answer
71 views

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

Is this possible at all? Because UI isn't obvious in this case.
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0answers
44 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 ...
4
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1answer
93 views

How to repeat an emitter 'burst'

I have a plane acting as a simple emitter. It emits 10 particles from frame 1 to 4. And again from frame 11-14. And again from 21-24. Then there's a pause for 40 frames, and the entire sequence ...
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2answers
117 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 ...
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0answers
151 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, ...
3
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1answer
127 views

What kind of F-curve can be used for a perpetual elastic effect of clock second hand motion?

I'm trying to animate my clock second hand with an elastic F-curve to make it more snappy like a real hand. The thing is I'm not good at advanced math to figure out the equation for its curve, so ...
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0answers
26 views

How to set the F-curve that defines the bone’s Y position to a reasonable range

I'm trying to drive the control bones of the armature through the shapekeys using the method explained here,that's basically something like this : Add a driver to the bone’s rotation in Pose Mode (...
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0answers
11 views

flipping keyframes makes my im betweens distorted (graph editor)

i cant find a solution so i ask here: i got a nice rig set up and even a proper animation, but every time i want to flip the keyframes it distorts certain in betweens of the animation. distorts means: ...
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0answers
25 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 ...
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1answer
357 views

How do you access and set a specific bone animation fcurve in python ? e.g. set pinky02_L z rotation = 8 degrees

I want to access the keyframes for a specific bone in animation_data.action, just so I can reset them to a default value. My main problem is I dont know how to just access a specific bone. The ...
2
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1answer
393 views

Simplify F-Curves of Shape Key animation

i am trying to clean-up animation curves from facial mocap data. The recorded data/animation is containing keys on nearly every frame. Usually i would use the Add-on 'Simplify Curves', wich does ...
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1answer
44 views

How to use scripting to remove fcurve for x and y location channels only?

I want to remove the x and y locations in fcurve using codes. I can remove all location channels in fcurve using codes, but I don't know which one x or y is. If the fcurve contains x,y,z, I remove the ...
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1answer
129 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
325 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 ...
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1answer
115 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
209 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 ...
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0answers
74 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
201 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
83 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 ...
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1answer
148 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 ...
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0answers
97 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 ...
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0answers
117 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 ...
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0answers
107 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 ...
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1answer
45 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?
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1answer
460 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. ...