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.
106
questions
0
votes
0
answers
6
views
Export particle hair system as alembic with using nurbs path as instance object
Good evening. I want to create stylized hair and export it as alembic file and I've got a cool idea: what if I speed up the process using technique from this tutorial, then I'll create particle system ...
- 708
0
votes
0
answers
24
views
Read atributes from an alembic?
I'm trying to export geometry from Houdini to Blender, as far as I know alembic is the way to go.
But, even tho I have multiple attributes in Houdini, I only receive in Blender the color attribute (Cd)...
- 393
0
votes
0
answers
19
views
Particle Alembic File Export not working as intended
I made A Particle System, which I want to export as an Alembic. But when I import it back in or into another software to check if it is working, I'ts completely different. I made it looping, but ...
- 1
-1
votes
1
answer
42
views
can we please add a way to view modifier keyframes
I mess with a lot of alembic files and I animate the alembic cache sometimes. The problem is I can't see the keyframes. They don't show up in the graph editor, they don't show up in the dope sheet, ...
0
votes
0
answers
78
views
How to export model as alembic file with texture material (color)?
I have created a 3d model with animations. But when I export it as an alembic file, the color/texture I have added goes away. I made the model using geometry nodes. There are a total of three objects ...
- 1
0
votes
1
answer
51
views
How Do you combine geometry when exporting as an alembic file and keep the animations of each object?
I Cant seem to join my mesh as one as it gets rid of all animations so is there a way of exporting as an alembic file and combining the geometry so that i have one mesh that has different animations ...
0
votes
0
answers
21
views
Access internal transform data from Alembic FileCache
When importing an alembic file with streaming data I get both a MeshSequence modifiers and object transform data.
In a tool I'm writing I need to know the built-in transform data (object transform). ...
- 155
0
votes
0
answers
82
views
How to make blender respect visibility of objects imported from alembic
We are trying to figure out a workflow for importing the results of a pedestrian simulation into Blender for visualization. During the simulation, pedestrians enter into the simulation at various ...
- 1
0
votes
1
answer
89
views
Alembic: Exporting several objects as a single object
Lets consider this example:
Having a destruction simulation composed of several objects in Blender.
I want to export the scene using Alembic animated format.
It works correctly, it exports 1 single ...
- 3
1
vote
1
answer
29
views
Dynamic Paint Irrespective of Time Stretching
I have this Dynamic Paint setup which influences the mapping of some droplets. As the splash happens, it wipes the droplets away based off of the merging of the two Weight Maps.
The only problem is ...
- 11
0
votes
0
answers
86
views
Export vertex colors in .abc alembic
I am unable to export an alembic with vertex colours.
I have a cube with some vertex colours on it that I would like to export as an alembic but on reimport, in a different file, the colour attribute ...
- 710
0
votes
0
answers
38
views
This geometry nodes animation looks different when imported as ABC into another file?
I followed this tutorial
https://www.youtube.com/watch?v=MGxNuS_-bpo
and when I exported the file as alembic and imported into a new blender file or new maya file or any other software, it came up ...
- 21
0
votes
0
answers
92
views
Best way to separate single parts of an imported Houdini alembic in Blender for individual shading etc.?
I successfully imported a Houdini vellum sim into Blender using an alembic.
The sim/alembic consists of four vellum objects interacting with each other.
The alembic in Blender is now basically one ...
- 31
0
votes
1
answer
155
views
Export alembic frames to OBJ
I have an alembic file. Is it possible to export the individual frame data to OBJ files with blender script?
- 101
0
votes
0
answers
72
views
How to read custom properties from alembic after import?
I need import alembic file and this file have custom attributes on it, How to read these attributes as properties in blender?
- 1
0
votes
0
answers
23
views
Stack ParticlesSystem after MeshSequenceCache Modifier
I'm trying to use particles system with alembic files (.abc) in modifier stack.
Apparently this combination doesn't work, when i bake particles system, no particles are emitted.
If i stack the ...
- 431
0
votes
0
answers
110
views
Get a mesh from a frame of a MeshSequenceCache in script
As the title says, I need help to understand how to access individual meshes from an object with a mesh sequence cache modifier that was created by importing an alembic animation. I want to access it ...
1
vote
1
answer
189
views
Geometry node which allow me to skip every odd frame in the object animation
I need help to build a node tree which would allow me to skip every odd frame in the object's animation. Basically, I need a tool that behaves just like a stepped modifier but in geometry nodes.
...
0
votes
0
answers
100
views
Alembic Animation and Keyframes
is it possible to set automatically keyframes at each frame in an alembic animation? I have a alembic animation with 350 frames. The playback is very slow. - I thought, that I can adjust the playback ...
0
votes
0
answers
94
views
Multiple groom assets export as single alembic
Does anyone know how to export multiple groom assets (particle system + curves) as one in alembic for UE5?
I have a groom made with particle system and then separatedly made bradis, because I needed ...
- 1
1
vote
1
answer
455
views
How to correctly import whitewater particles from fluid simulation (FLIP fluids)?
I exported a FLIP fluids simulation to Alembic (.abc) and imported it into another blend file.
The fluid itself works fine however the whitewater particles are not visible.
According to the docs, I ...
- 31
0
votes
0
answers
20
views
Unable to export skin texture in .Alembic format [duplicate]
I exported Rigged avatar from blender(3.2) in .Alembic format as shown below
and exported the same into Marvelous Designer but could not import skin textures into Marvelous Designer.
How can I get ...
- 37
0
votes
0
answers
50
views
Alembic triangulation error in Cycles
I'm rendering an alembic geometry cache animation, that was generated in Houdini. Alembic cache is fine, as proven by Houdini playback itself, Blender view port, as well as Evee render:
However, for ...
- 151
0
votes
0
answers
63
views
Poor performance while playing back alembic
I've been using Houdini and Blender for a while now, typically exporting animations as alembic and rendering in cycles, and have noticed very poor performance when playing back anything that starts to ...
- 21
0
votes
1
answer
501
views
Reading Alembic files from disk
Houdini user here. In Houdini when we load alembic files, it just reads from disk.
Meaning when you save your Houdini scene, the alembic won't increase the file size because it just reads it from disk....
- 11
1
vote
0
answers
210
views
How do I keep the Random Value node static on changing geometry? [closed]
I have an Alembic point cloud I'm trying to render as grains, but the random size keeps changing every frame because the point count isn't static. I guess I could use the seed input, but I have no ...
- 41
1
vote
0
answers
93
views
Can I model a character in blender, export it to maya, run xgen to create hair, then export it back into blender for animation?
Can I model a character in Blender, export it to Maya, run xgen to create hair, then export it back into Blender for animation?
I need an help to understand how can I export xgen hair to Blender and ...
0
votes
1
answer
43
views
Convert animated 3d curve to Grease Pencil
When I select the curve and do convert to -> grease pencil the animation is lost. This is really frustrating.
Is there any way to maintain the animation of an animated 3d curve? In my case I use an ...
- 1
0
votes
1
answer
159
views
Add custom properties to objects before alembic export
I want to add custom properties on objects and export them with alembic, then read them from another software.
like in maya AbcExport -j .. - attr foo -attr bar ..
- 1
2
votes
1
answer
377
views
GN: Exporting Plant Growth Animation To Alembic Incorrect
I created this beautiful Plant to Tree Growth Animation at 30 fps using Geometry Nodes and just discovered that when i export the animation to Alembic (.abc), the animation goes kaput. I have no ...
- 10.3k
0
votes
0
answers
54
views
Organizing materials on a mesh alphabetically
Let me set this question up a bit to establish why you would even WANT to do this.
When exporting from DAZ to Blender, I use the Diffeomorphic plugin and the Sagan Alembic plugin.
Say I port a Genesis ...
- 43
0
votes
1
answer
377
views
Getting colored point cloud sequence into Blender
I have motion capture data in the form of a colored point cloud that I would like to get into Blender. The export options from the MoCap program are:
I have been trying desperately to get the Alembic ...
- 3
0
votes
1
answer
208
views
Is there a way to precache an Alembic sequence on RAM for faster playback?
I've been working with large Alembic files on a project recently, some in excess of 3 or 4 gigs of data and thousands of frames.
I notice that viewport playback takes severe hits with every ABC object ...
- 21
2
votes
1
answer
1k
views
How to export Blender model with animation and materials?
I have created a very basic model of a horror creature that I want to export and use in another Blender scene. The creature consists of two separate meshes and two crudely animated armatures. The ...
- 444
0
votes
0
answers
179
views
export looped alembic files
Is it possible to export looped alembic files? I exported then imported an alembic object (a deer) from Blender into 3Ds Max sing this method that maintains working IDs: https://blender.stackexchange....
- 1
1
vote
2
answers
429
views
Python: Copy visual transform from object with constraints
i am working with an alembic file which contains points and movement information. for project reasons, i need the movement information in keyframes, so i am writing myself a script that grabs for a ...
- 63
0
votes
1
answer
2k
views
Alembic export and reimport misses meshes
i am working with Geometry Nodes and i want to export my instances with animation to alembic. My ultimate goal is to use it in Unity.
I found this tutorial (https://www.youtube.com/watch?v=_-CKa69OhZw)...
- 63
0
votes
0
answers
159
views
Two mesh sequence cache working together at the same time
I have imported in my project two different Alembic files with two mesh sequence cache that have to run at the same time. The problem is that when I run the animation the first one that I have ...
- 1
0
votes
1
answer
160
views
Blender Alembic does not read frames with zero geo correctly
so I imported an alembic file of a Boolean animation from Houdini into Blender. The animation starts at frame 20, but no geometry is supposed to show up until frame 21. However, when I imported the ...
- 116
1
vote
0
answers
127
views
Get Alembic Frame range from imported file via python
Is it possible to use python to get the frame range stored in an imported alembic file? I assume it's on the cache datablock but I can't see anything that would yield this information.
many thanks
- 51
1
vote
1
answer
487
views
Alembic animation not rendering in Octane
does anyone know why my animated alembic mesh (vertexanimation) shows correctly in the viewport but is not rendered out. I am using Octane with the latest blenderversion.
Rendering in Cycles (GPU) ...
- 31
0
votes
1
answer
547
views
How to properly apply an image sequence texture to an imported alembic file?
I've imported an alembic file of a fluid simulation from Houdini and am trying to apply a sequence of image textures (displacement maps that I have also exported from Houdini for the ocean spectrum, ...
1
vote
1
answer
69
views
Marked edge (freestyle) on alembic model not showing in render
I'm currently using blender 2.9
I'm having trouble with using freestyle line on an alembic, everything works apart from marked edges, and unfortunately I really need it.
The first time I tried using ...
- 11
0
votes
1
answer
936
views
Blender to Unreal Engine import animation troubleshooting - Alembic files looks jagged
Apologies that this issue is primarily regarding Unreal, but I was wondering if any Blender-to-Unreal users have come across this issue when exporting an animated mesh as an alembic into Unreal. Below ...
- 25
0
votes
1
answer
127
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 ...
0
votes
0
answers
671
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.....
- 21
0
votes
2
answers
4k
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 ...
1
vote
0
answers
59
views
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 ...
0
votes
2
answers
1k
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 ...
- 53
2
votes
2
answers
1k
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 ...
- 41