Questions tagged [alembic]

Alembic is an open computer graphics interchange framework. Alembic distills complex, animated scenes into a non-procedural, application-independent set of baked geometric results. This distillation' of scenes into baked geometry is exactly analogous to the distillation of lighting and rendering scenes into rendered image data. Use this tag for any questions relating to the usage of Alembic within Blender.

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9 views

Reduce file size of alembic animation

I have created an animation using blender and exported it as an alembic animation file. Is there any way to reduce the alembic file size.
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Can I export fluid cache to Alembic with speed vectors (for motion blur)?

I have exported a mantaflow fluid simulation to Alembic file format, and I want to re-import it and still have motion blur work, but I can’t seem to make it happen. I have tried turning on multiple ...
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Is it possible to shade/render a fluid simulation with whitewater imported from Houdini into Blender?

I’ve done a lot of research on the process of exporting/importing alembic files of fluid simulations to/from Houdini and Blender and have read about the difficulties in importing custom attributes ...
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Change pivot point of an alembic imported file

I would like to create a cool effect where I want to distribute instance of an animated object with Geometry Node. I have use FlipFluid to make a quick test of a fluid sim, but when I export/import ...
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How to create a shape key animation from 2 mdd shape key animations

[Hard question] When exporting an alembic (.abc) animation into an .mdd file (and reimport it back) it creates a sequence of shapekeys that form 1 animation. if I have 1 mocap face mdd animation (...
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1answer
16 views

Alembic sequence only renders the first frame

I'm trying to render out an alembic sequence. Rendering any single frame works fine, but rendering the entire frame range results in the first frame being repeated over and over. This is what my ...
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38 views

How to select individual parts of alembic (abc) file in Blender

Question: How can we select individual parts "mesh" or parts thereof in an alembic file in Blender? We've tried the "edit mode" ->P and then selecting by loose parts.. No luck.....
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51 views

Any way to change the speed of an Alembic?

I have an alembic of some splashing water. I'd like to use it in slow motion, 20% speed. Is there any way to do that? I believe alembics have no concept of frames, which seems like it should mean it's ...
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What is the best way to take animations from Maya to Blender?

In our studio the animations are done in Maya and they are rendered in blender Eevee. Eevee saves a lot of time in rendering but the time is wasted in setting up the files for render. Right now we ...
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24 views

Get position from alembic mesh

I'm working in blender with animated alembic caches, where I create some simulations. Since I want to comp it later in Nuke, it is useful sometimes to get the position of a specific vertex, so I could ...
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42 views

Question concerning alembic imports

I just had "Storm Simulation Tool" calculate a fluid sim. It exported it frame by frame as alembic files. Unfortunately Storm does not say whether it uses 'Ogawa' compression or not. Blender ...
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52 views

I need to update an alembic and keep materials

I need to import alembics in my scene and I would like to do a lots of updates of this object without losing my materials (& other datas). For example, I have a main scene, I import an alembic, do ...
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1answer
146 views

Blender stuck at 100% on the first frame of animation

It renders, composites and saves the image just fine, but refuses to move to the next frame. GUI remains responsive. It's a large scene (alembic animations, 7 million tris with hair on top of the ...
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46 views

Hair dynamics hair jumps, jitters, and flies around

How can I control the hair dynamics so that the hairs mostly maintain their original shape but also move around slightly with the model when animated? My current hair setup causes the hair to fly ...
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39 views

How to display Alembic “Override Frame” animation in the animation graph?

I have set some keyframes for "Override Frame" in the MeshSequenceCache modifier. Unfortunately the animation has a ease-in ease-out, so I want to take a look at the curve in the graph-...
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21 views

Mantaflow Alembic export for compositing

I m new in bender and use it for flow simulation, I m trying to export a composition did with mantaflow to get the animation fusion 17. i only have the domain's cube and not the simulation. Do you ...
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10 views

How to apply mesh sequence modifier to object duplicates frame by frame using python

I'm trying to create a "stop motion" mesh sequence animation that I could export as an fbx using stepped keyframes. I've downloaded some alembic data and I'm trying to create duplicates of ...
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30 views

Shutter time not affecting motion blur on alembic objects (eevee)

I have some objects exported from houdini as alembic I am bringing into blender. It renders with motion blur, but its blurred too much. So I adjust the shutter time, but it doesn't affect my alembic ...
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2answers
500 views

Marvelous designer alembic export and textures

I have a problem with marvelous designer and alembic export. I just "baked" my cloth animation in Marvelous Designer 10 and exported it as an alembic (ogawa). When I import my alembic file ...
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61 views

How to apply existing textures on alembic

So I did an animation with a character with Maya, then I exported the alembic and imported in blender, making sure the uv option was ticked when exporting When I tried to apply the textures (create ...
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1answer
16 views

Exporting camera crane alembic

I'm using blender's crane camera rig to get a shot however I need to export the camera to an external program but because the camera is being controlled by the crane it doesn't have any transform ...
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13 views

Alembic - relocate the path in outliner

I'm following this video so, I have some questions: How to avoid this exhaustive workflow that need to change the alembic path from every geometry? Can we have a way to switch the path and ...
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Subdiving Alembic Crashes Blender

So importing an alembic from Houdini and wanted to throw a subdivide modifier on it and every time it crashes blender. Can confirm the alembic can be subdivided in C4D Here's a link to the file. Just ...
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convert grease pencil into animated mesh with visibility keyed for each frame

so far i can do this manually, but it gets pretty labor intensive if you have more than 20 frames. Right now this is how im approaching this: Convert each frame into a polygon curve, adding 0.01 to ...
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41 views

Boolean Alembic Sequence

Is there a way to get rid of a part of an imported alembic mesh sequence? There is one triangle instanced for every alembic vertex, I would like to render only a cropped part of it (there are over 10 ...
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69 views

Blender Alembic export for keyshot

I am trying to export a small physics sim from blender, to open in keyshot. I am exporting the files as Alembic but in Keyshot, none of the animations are taking place, ive tried baking the animation, ...
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193 views

Export/ Import alembic trouble / blender 2.9

I got some trouble with alembic export/import. I tried to export and reimport a fluid simulation but when i do so the importet mesh is not animatet. Further are all stages of the animation on top of ...
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99 views

Issue with importing animation from Blender to Keyshot 9 Pro

Made a simple animation of a wire, but I'm having a hard time importing this one to Keyshot 9 Pro. After exporting it from Blender in Alembic (*.abc) format and importing into keyshot the wire is ...
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15 views

Alembic Camera issue

I've imported an alembic camera into my scene and for whatever reason if the translation coordinates are super high (for example, x = 100000, y = 25000, z = 75000) I end up getting a render thats ...
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36 views

Why camera's matrix exported to alembic has swapped axis?

I'm working on software which loads .abc files exported from blender. Yesterday I noticed strange thing: exported camera which is placed in (0, 0, 0) without any translation, rotation and scale doesn'...
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1answer
63 views

Alembic eye mesh not following the character body

I'm trying to export Malcolm(Animschool rig) from maya to blender as an alembic file. But after exporting his eye mesh break the connection with the body and they come on grid in blender. Any valuable ...
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29 views

Why are only some of my frames being exported to Alembic format?

I'm using Animation Nodes to animate a spectrum from an audio file. I want to render this using the Crowd Render addon, and so I found that I can't have any Animation Nodes stuff animating anything, ...
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505 views

Importing particle simulation from Houdini to Blender

I have a particle simulation in Houdini that I'd like to import into blender. The particle simulation has instanced objects on every particle in Houdini, so I've tried just exporting it from there as ...
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50 views

Failed import of FBX file - need help converting FBX to Alembic

I'm new to rigging and animations of 3D characters and so I've been using Akeytsu for it's intuitiveness.I want to use Blender to turn my .FBX file from Akeytsu into an Alembic file (don't have the ...
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1answer
391 views

Bake Mesh Sequence Cache to Keyframes or Shape Keys?

I have a Mesh Sequence Cache modifier that references a .abc file. Is there any way I could bake the modifiers' motion to the object so it doesn't have to reference the .abc file? I'm doing this so ...
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1answer
95 views

Clothes don't collide to its parent : a rigid body

Description of my scene : I have a human face mesh (an alembic file in movement) and ropes made with single vert and whith cloths properties parenting to my face (as child) When my face moves, ropes ...
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Assign multiple objects one to a frame inside one track of a geometry cache?

So, i'm pretty new to this, so please excuse me if this is wrong place, or there is a better way to do what i am doing. Overview: Lets say I have 20 objects that together make up my fire animation (...
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28 views

It's possible to create a 3D or 2.5D video/animtation using the alembic file from photogrammetry?

my interest is about how create fast renders with the images aligned by photogrammetry. I think it's appropiate to use the alembic file (*.abc) from a a photogrammetry software such as meshroom. I ...
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212 views

Vertex color Animation from houdini to blender 2.8

i am trying to export a alembic from houdini to blender. This mesh has a Cd atribute with an animation. I was able to export a still frame using the ROP alembic node in houdini. I can use the vertex ...
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1answer
78 views

Assign Materials based on mesh name

our workflow for a job requires us to import alembic meshes from maya and render them in cycles. I would like run a script that looks at the scene mesh names and assigns the corresponding material. ...
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1answer
140 views

Blender does not recognize Alembic file from Houdini

im pretty new to Houdini but a Blender user for almost 2 years now. I made a Fluid Simulation in Houdini, exported the deforming mesh as an alembic file, but whenever i try to Import it to blender, ...
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413 views

Is it possible to export animation cache data from Maya and apply it to a look dev mesh in Blender?

I'm currently setting up a pipeline at my company where our animators are animating our characters in Maya, and we want to use the powerful Toon Shader for Eevee in Blender to texture the look dev ...
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71 views

Set meshes for each frame of the animation?

When you export a cloth simulation as an alembic file and then import it again, you get a modifier on the cloth mesh called "Mesh sequence cache". The meshes in the sequence are read from file. What I ...
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1answer
58 views

Custom exporter and problems with matrix and rotation order

I'm trying to write a custom exporter for cameras from/to Blender, but I'm having some problems with rotations and rotation order. In my mind I should be able to extract euler values from the world ...
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78 views

.PLY animation to alembic/cache

I know similar questions have been asked elsewhere here but, the most recent answer is over 3 years old and we've have b2.8 drop in the interim. I have captured some depth footage using an Intel ...
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31 views

Context issues while importing Alembic files in a plugin [duplicate]

I keep getting the context is incorrect error and the error is: Operator bpy.ops.wm.alembic_import.poll() failed. I have tried all the solutions shared in this post and in the official documentation ...
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216 views

What is an Alembic Cache and can it be converted to fbx or dae?

Can anyone help me understand what an alembic cache is? and can I convert it to any other format like fbx or dae? I am specifically looking to bring it on the web and play the animation online ...
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1answer
163 views

exporting blender ABC to 3DsMAX with working Material ID

Well the question lives between blender and max community so I need to ask here just in case somebody also knows the answer. When exporting objects ( a cube ) with different 3 materials assigned to ...
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410 views

Weird bug with Alembic & Blender 2.8 + Eevee

I am working on my second project with Blender and I have a very weird bug. I import Alembic files created with Quill and I time correct it with expressions to reproduce the stopmotion look (6fps or ...
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1answer
108 views

How can I export baked fluid simulations that work in Xcode?

When I export a baked fluid sim to Alembic, it imports back into Blender just fine, but in Xcode, it's just a static mesh. I've tried a few dozen different combos of bake and export options, and they ...