Questions tagged [random]
For questions pertaining to randomization (not for just any "random" questions... heh). Some examples include scattering particles or instances in a non-uniform or unpredictable way, or assigning colors with random variation.
78
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Geometry Nodes: How to randomly delete objects?
I've connected rectangles in an L-shape loop and staggered them across layers. However, I'm struggling to figure out how to randomly delete some of the rectangles on the four faces to create gaps.
...
- 21
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0
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21
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How to randomly wiggle vertices?
I have this object (flat plane) with a Lattice modifier, I want to randomly wiggle the position of each vertex on the Lattice individually - how's best to do this? Similar behaviour to wiggle ...
- 15
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1
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33
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Creating a mask for a specific node inside a Geometry Node system
I'm trying to make a very basic Geometry Node setup, and need some randomisation in the rotation.
Though, i only need the randomized rotation in a specific area, while keeping the rest straight
I ...
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1
answer
148
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'noise value' in geometry nodes
I have this nodes setup in geometry nodes - using instance on points :
I got as expected :
but now , I want to generate 'noise' rather than 'random' but I can't find something like 'noise value'. ...
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1
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126
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Geometry nodes: random value as single value rather than field [duplicate]
I want a single random number, rather than a field. In my node setup I want to sample the position of a random point on a mesh, so I'm using the sample index node ...
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30
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How to give .abc (Alembic file) particles random color and emmsive values?
I made a particle and volume simulation in Embergen and exported them both in their respective file formats, volume to VDB and particles to .abc.
I want to give the particles in Blender a random color ...
- 27
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1
answer
107
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Maintaining consistent random colors for animated cars in Blender
I have a follow-up question regarding my earlier inquiry: Traffic animation with cars along a curve
I want to animate cars driving along a curve and I want the colors of the cars to be random. So I ...
- 441
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1
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60
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Randomizing Z Position for Stacked Rows in Repeat Zone
I have created a Geometry Nodes setup with a Repeat Zone to duplicate instances randomly along the X-axis and stack multiple rows on top of each other. A fixed stacking value is given so that each row ...
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1
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Randomizing Stacked Rows of Cubes in Geometry Nodes with Fixed Start and End Constraints
I have created a geometry node setup that places cubes along the X-axis with random positions and sizes using the accumulate field node.
I need to place these cubes to match the total length of a ...
- 113
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1
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78
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How to get a random number only once per instance, in stead of for each vertex, in geometry nodes
I've built this rather complex way to create a box with tape on it in geometry nodes. This is because I need to create many different boxes according to specific size profiles.
The setup works but I ...
- 110
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31
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Problems with Geometry Node Set up - collection instances rotate randomly in Blender Render Buffer VS Viewport Render
I have a fully finished tracked VFX shot (please see attached play blast video) and it has instances that rotate and scale up according to the position of two empties.
The geometry nodes look perfect ...
- 11
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31
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How to stabilise the Curves info random value?
I am using the SouthernShotty's workflow and node tree to get hair that has different colour on individual hairs. He uses Random output of the Curves info node for this step, which works. However when ...
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49
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How to make the position property of an object wiggle only when it is moving?
I have an object with two simple position keyframes. I would like to add some randomness to the animation but only while it is moving. As soon as it stops, the wiggle should stop, too.
In After ...
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34
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Random Scale of UV Spheres radius using "Instances on points" Origins are off!
I have a a whole bunch of spheres generated on a curve, I want to randomise the radius of the spheres as well as their positions in order to get a galaxy effect.
The issue I am running into is that ...
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2
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49
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Add Random seed slider to a node group to affect other input values randomly
I Hope someone can help me with that, can't find any solution fewwww
I'm trying to integrate a random seed slider to my nodegroup!
Basically I would love that slider to change randomly all the other ...
- 13
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104
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.Problem with randomization of Instances in a Repeat Zone
Hello everyone, my project is still to animate a growth of branches on a trunk and other branches on the firsts and so on…
I want to randomize the position of the branches to do so, in the ...
- 1,039
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1
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76
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How to use object info / particle info in geo nodes?
I have a simple setup here. I would like each point to have a different color. This setup should show each point having a different shade of gray, but it does not - because technically this mesh ...
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26
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How to randomly rotate many linked array objects along their individual origins
I have 30x50 matrix (2 arrrays) of roughly 1500 cubes that I want to each randomly rotate around their individual origins to achieve similar effect:
Thus far have most success with 2 array modifiers ...
2
votes
1
answer
68
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Randomise the endpoints of parallel curve lines (Geometry Nodes)
I'm looking for a solution how I can switch start and endpoints of parallel curve lines randomly with Geometry Nodes.
What I have so far is this:
10 parallel curve lines, divided into 10 segments by ...
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vote
1
answer
30
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Checker texture addon question?
I am trying to make a node setup where i have
Transparent Tex
Principal BSDF
these both are going through the mix shader .
I want to control the Factor of the mix shader with a chekered texture .
But ...
- 13
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votes
1
answer
138
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How can I quickly place assets on a grid?
I'm currently learning Blender and have taken on a personal project of building a city to keep pushing myself. I'm currently designing generic buildings and other assets of varying sizes and shapes to ...
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answers
29
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Creating a random seed per instance with geometry nodes [duplicate]
I've searched everywhere but can't find an answer for this.
How do I change the seed value per instance I create so that all my instances appear different.
Right now they all use the same seed and ...
- 51
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1
answer
34
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Why my particle system only shows particles falling down?
I just started learning to use Blender and I'm following a tutorial in which i have to create a particle system over a mesh; but when I add the particle system and press play, it only shows the ...
0
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0
answers
24
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Is there a way to randomly change the seed in Point Instance? [duplicate]
This created a Node group that was seeded so that the branches and leaves of the tree could be changed randomly
However, using the RandomValue node did not result in random changes
The image shows a ...
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53
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Seed of Random Value can't be as input never?
I connected the seed of Random Value to Random_seed of Repeat zone as driver or data path, but the output of repeat zone is as same as before, 0.
I just want to change that seed not using other stuff ...
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1
answer
74
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GeoNodes - Random numbers on points of a grid [duplicate]
I would like to create a grid in Geometry Nodes and add random numbers to its points.
Sounds so easy... I am a beginner and just cannot figure out how... could you please advise?
2
votes
1
answer
163
views
How can I make a material randomize a texture per object?
Let's imagine I have a scene with a thousand identical cube meshes. I want to apply the same material to all cubes, but have each cube randomly display one of my 3 or 4 image textures. Say, some cubes ...
1
vote
0
answers
24
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Efficiently create a big set of object [closed]
I am creating a low poly forest for my project. I want to use a big library of assets (that I am making).
I figured that what works best for me so far is to create branches separately from the trunks ...
1
vote
2
answers
312
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Randomize instances WITHOUT repetition?
Hello Blender community!
I'm trying to generate random positions for a set of objects. I've got 3 objects (cone, cylinder, cube) with a variable of 3 colors (blue, red, yellow), which makes 3x3=9 ...
- 13
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votes
2
answers
148
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How to randomly rotate the texture of instances when the node "Geometry" is used?
Here is the setup of the geometry nodes, where the random value is set up to randomly rotate instances along Y and Z axes. However, the screenshot shows that the texture of instances does not randomly ...
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Random Camera appeared after i've done some animation
I just finished creating an animation for my character, but i then i decided to play the animation through the camera view and it ended up showing me a random camera view that i don't have in my scene....
- 11
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0
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78
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Geometry Nodes : get a differet random value for each mesh after subdivide
I'm on Blender 3.6. I've made a geometry node to build a building from a plane, I want to build one to build a block, I subdivide a bigger plane and apply my geometry node for building (BatMain on the ...
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42
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geo node problem in blender 3.6.4 random node, when random value added it multiply the objects on many points, can anyone help me with it
Here is the image with details, I have marked it with white pencil. I want to know how to fix this issue.
2
votes
2
answers
425
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Geometry Nodes, how to randomize the height of some cubes?
I need to slightly randomize the heights of some cubes. (like the following image )
any ideas?
Blender 3.6+
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2
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726
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Geonodes: Adding 'Random Value' to 'Noise Texture' (4D/W) yields strange results
If you look at the images you'll see I have a basic node setup where noise distorts a mesh. I want to be able to apply this modifier to multiple objects and have the distortion be randomized for each ...
- 1,839
4
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1
answer
709
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Random rotation of instances
I am trying to use geometry nodes to build a wall, where the stones of every second layer are offset to create a brick-like pattern.
I tried using mesh lines to points for more control, so that I ...
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votes
1
answer
36
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Animation not rendering (viewport still fine) & Random per island changes color on every frame
Somehow my animation is not rendering, it just render every frame I tell it to but no change in actual object movement. The playback in viewport is running fine.
Also, I used random per island to ...
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1
answer
299
views
Automatically randomize rotation for each duplicated object
Is there any way to randomize the rotation on z-axis of an object each time I duplicate it?
The Randomize Transform feature doesn't work for me, because it needs to be done manually every single time ...
6
votes
2
answers
669
views
How to make a procedural texture from multiple images?
I have several images of ceramic tiles, square shape. I need to fill the surface with them so that they lay down randomly, and not I manually arranged them individually.
- 63
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votes
3
answers
245
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Geonode : Display instances scales as text
I need to display a bunch of fish instances with randomized scale.
They are generated with geonodes.
Under each fish, I need to display its ( randomly generated ) scale.
As you may know using a ...
- 157
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vote
0
answers
29
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(Geometry Nodes) Instance on Points: Create Array Of One Object With Random Group Input Values [duplicate]
I have created a Geometry Nodes patch, which is able to switch between multiple Objects (simple number Meshes; Range: 1-8 ; Group Input: "NUMMER") in different types (e.g. Solid Green Look, ...
12
votes
1
answer
1k
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Realistically randomize Rubik's Cube
A particular user with a Rubik's cube in avatar has inspired me by these questions:
Random colors to geometry node
creating a cube mosaic
Randomizing colors on Rubik's cube faces is easy. But what ...
- 40.1k
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1
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1k
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How to apply random noise texture to instances?
What I had in mind was to use Geometry Nodes to take a sphere and apply a noise texture to distort the surface into an odd shape, then distribute that sphere as many instances on a surface. (...
- 87
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votes
1
answer
136
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Creating random combinations of objects, a group of objects or collections
Consider 10 shirts, 10 pants and 10 shoes. Is there any way in blender I can quickly make a copy of all and make random combinations of all, each combination containing exactly one shirt, one pant and ...
- 855
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109
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How to fill a fixed space with random instances
I want to fill a bookshelf with random instances of books. The books are available as instance collections and vary in size.
I believe array modifiers cannot work with instances, and cannot pick from ...
- 135
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84
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Random Emission Value Per Face
I followed the guide here https://blender.stackexchange.com/a/255013/164211 to create random colours preach individual face. I now want to be able to control the emission strength in the same way. I ...
0
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0
answers
90
views
Spawn Object with Random Color (Viewport Shading)
I've been stuck trying to instance objects with a random color set when the Viewport Shader color is set to Random.
bpy.context.object.color = self.color
The line ...
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286
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Can I randomise the start of the animation in an Instanced object?
I'm making a scene with a submarine like corridor, and there are multiple revolving siren like lights.
The issue is they're all spinning at the same time and it's not realistic, but I don't want to ...
- 11
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1
answer
170
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Randomize Color of an Object with Multiple Meshes
I'm making a container with multiple meshes inside and I want to randomize the color when I duplicate it. Like the left red one in the picture I want to change its color between blue/red/green but ...
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48
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How to randomize some meshes appearing in a loop animation?
I need to create a terrain that moves under a vehicle, but some small meshes that appear on the terraine as it rolls must appear randomly. How could that be done or where should I start looking to ...
