Questions tagged [particles]

Questions pertaining to a group of particles which can be used to simulate a system of chaotic objects(known as particle systems). Particle systems in Blender are robust and full of settings.

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58
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1answer
7k views

Trace visualisation in 3D - how to wrap curves onto a 3D mesh

Dear Stack Exchange Community, i'm trying to achieve the following effect with curves: Source of this image is here: https://www.behance.net/gallery/57143191/Visualizing-Concepts-in-Houdini-...
27
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1answer
4k views

How to store particle locations in a list?

my question is how to store the locations of a particle or any changing data in a list so as to use the locations for effects like trails. What I intend to create are particle trails, the following ...
26
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3answers
6k views

Is it possible to change the emission rate of particles over time?

Is it possible to change the emission rate of particles over time? E.g. Start off with an initial burst of particles, then emit at a steady rate. Here is a (poor) example of what I mean by the ...
25
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2answers
22k views

How to Create Dust Floating in the Air?

Quite impressed by all of Gleb Alexandrov's scenes with some amazing dust floating around. (To see what I'm talking about > http://www.creativeshrimp.com/lighting-tutorial-atmospheric-effects-dust-...
24
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3answers
14k views

How to change hair color along length of strand?

At some point (not right away), I'll be wanting to make a character model which has multicolor hair. Namely, it will be one color closer to the roots, and another color closer to the tips. Is there ...
24
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3answers
40k views

Convert Cycles Hair Particle System to Mesh Object

I'm hoping this community can help me solve a issue. I have created a cycles hair particle system to render grass. This is successful in rendering and works great. However I want to convert this ...
23
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3answers
2k views

Mix colors from different objects at collision (Rigid Bodies and Particles)

This will be a pretty complex question, many areas will be connected to it but it is for sure focused on one main problem. I'm not sure is it possible without heavy scripting and I didn't found ...
22
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1answer
5k views

How to achieve this spline and particle effect

does someone have any idea of how to achieve the following effect in Blender? the source of this file is http://www.rawandrendered.com/camp-2016-titles I tried to apply curves to a deformed surface, ...
22
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3answers
5k views

How to color particles based on the texture of the object from which they are emitted, using the “grid” emission setting?

I am using Blender's particle system to try to voxelize my mesh. I'd like to color the voxels based on the diffuse color of the textured mesh at the closest location to each voxel. This is an image ...
22
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2answers
25k views

How to control hair particle position?

I am trying to make some grass. I want to have grass only near the edges of my plane and not on the center. Is any way to do that? Or I have to split the plane and make different objects?
21
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5answers
2k views

Is there a way to simulate convection with a particle system?

As stated in the title, I want a particle system that will have particles heat up and rise, and then sink when they cool. How can I simulate this? Additionally, I want to make sure the particles ...
21
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2answers
12k views

Making hair go straight up instead of following the shape?

So I'm making trees on a hill. But from what I know, trees grow straight up, and not at an angle. So how would you make the hair particles go straight up and not at an angle. Here's an example of the ...
21
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3answers
7k views

How to turn particle emission on/off?

Is there a way to animate whether or not a particle emitter is emitting particles at a given point in time? I'm using the particle system to animate bullets, so basically I'm trying to find a way to ...
20
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3answers
8k views

How to loop the particle simulation indefinitely?

I've made a simple snowfall particle simulation (using gandalf3's solution: How to make particles fall like snow). Is there a way to loop the animation, so the transition between last frame and first ...
20
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4answers
21k views

Is there a way to make particles behave like rigid body objects?

I want to create a scene that has a lot of irregularly shaped objects piled up on the ground. I don't want the objects to intersect with eachother. I started off by creating a particle system that ...
20
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3answers
19k views

How can I convert a hair-particle system into 3D, editable objects?

Is it possible to 'apply' a particle system so that it becomes workable 3d objects instead of being hair or emitter objects? If that's possible, then I should hypothetically be able to apply another ...
19
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3answers
7k views

Is it possible to render vertices in Blender?

Is it possible to render vertices with materials applied on them? I subdivided a mesh, and deleted all the faces so only the vertices were left. I could theoretically apply cool effects on them (I ...
19
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4answers
4k views

How to create a Nebula in Cycles?

I'm trying to create a Nebula walk through using Blender but my final art is unrealistic. I would like to create a realistic nebula without Image backgrounds... I used particle System and clouds, but ...
18
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5answers
15k views

Convert particle system to animated meshes

I've started trying to make a 3D model that I will end up exporting to an augmented reality app but I've hit a problem in terms of the particle system. The app wants the 3D file in .dae(collada) ...
18
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2answers
4k views

How to make an object appear to be buried in sand?

My first thought was to use a fluid simulation, but that would act too much like liquid and too little like sand, unless there's some way to configure it differently. Ideally, I want it to look like ...
18
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2answers
4k views

Is it possible to recursively instance object particles?

I have a seed object with some particle hair strands. I've specified this object to be instanced in another particle system, then specified that object to be instanced in yet another particle system. ...
18
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1answer
13k views

How to make foam with bubbles (beer, bath)

My goal is create realistic foam. I mean really realistic foam with bubbles, no only SSS shader and done :-). Use particle system's is not enough, because bubbles overlaps and black artifact's ...
18
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3answers
582 views

Select individual hairs with Python

Is it possible to select specific particle hairs or hair keys in Blender with Python? I'm writing a script on Blender 2.73a which involves finding hairs in a system by their index and applying the ...
17
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1answer
2k views

Make particles slip around objects in Animation Nodes

I would like to create a particle animation that shows a particles flowing and slipping around objects instead of penetrating them. The effect I want to achieve is shown in this gif by Étienne Jacob:
16
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3answers
14k views

How can I disperse objects with a particle system?

I've been working on a project where I need to render a wheat field. I'm using the new cycles hair rendering feature in 2.67. I can't seem to figure out how to render the hair based on an object (...
16
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1answer
7k views

Convert large particle system(s) to one object efficiently

I place leaves on my trees with emitter particle systems. Then, to make a forest, I place those trees with another emitter (or hair) particle system. Problem is particles of particles don't work, I ...
15
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2answers
3k views

How can I create a crashing wave effect?

I have a scene with a stormy ocean, and I am trying to create this effect: I've been looking for tutorials on "crashing wave" or "ocean spray" without much luck. As such, I've run up against a wall. ...
14
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3answers
568 views

Lines inside mesh

I'm trying to make and rig a human mesh but instead of faces I want the volume to be made out of lines, like the image below suggests, with the possibility of animating the lines, just make them ...
14
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3answers
3k views

How to achieve a stylized burning (Wireframe) effect?

I tried many fire simulations, I googled hours of hours about all imaginable keywords* in all sorts of combinations and I followed many many tutorials about smoke simulations. But I don't actually ...
14
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3answers
2k views

How to cover a surface with cells (Biological tissue)

I am looking for an efficient way to cover a mesh with cells (spheres) to obtain results similar to the image below (i.e. a realistic biological tissue). It's a problem I have struggled so much and ...
14
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4answers
3k views

Suspended particles inside a material (procedural)

Inspired by reading this very intense thread about procedural materials, I decided to try and build upon saunam's material of "suspended particles in a recipient" to create a material for a watermelon ...
14
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1answer
2k views

How do I achieve a particle trail effect?

So I was attempting at the "Houdini Trail Effect" in Blender as shown: but got stumped with the whole particle system. I managed to create the following through trial and error with the Vortex on ...
14
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2answers
16k views

How do I save (bake) a particle simulation?

I followed this tutorial ( https://www.youtube.com/watch?v=2KNO_laPA9s ) to create an audio visualizer, and it's worked great with the audio baking to the curves to affect the particles. But during ...
14
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1answer
1k views

Hook/parent/constrain to particle hair?

Is there any way to hook, parent, or constraint something to a vertex of a particle hair strand? Such as a hair accessory dangling from a braid that needs to move with the hair? Converting the hair ...
14
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1answer
2k views

How to attach colors (e.g., gradient color) to fluid particles

This is follow up question based on {this post}, indeed. The question is how to attach color attribute to fluid particles? For example when a part of colored fluid (as explained {here}) ...
13
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2answers
17k views

Generate Particles with Random colors (continuously or from a set)

I am trying to do rocks and I want them to have a random base color from within the colors that look "rocky". The only method I know of is to duplicate the base objects over and over and give each a ...
13
votes
1answer
7k views

Particle Color based on where the particle is emitted?

Is it possible to change a particle's color to the color of the face/texture part it comes out of in cycles? I want it to be the color of the face after shading and all that other stuff
13
votes
1answer
13k views

Bake hair particle system to textured low-poly mesh

I got a scene with a lot of fur (really dense hair particles). There are 1000 particles x 750 interpolated ones (with clump curve and kink) per object. Obviously, this is really slow to render and ...
13
votes
2answers
18k views

Randomization of the array modifier

I would like to create something that is basically what array modifier does, but with a tiny bit of randomization (of both location and rotation). The particle system would be otherwise fine except ...
13
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1answer
5k views

How to use emitter for generating thick forest so that trees would not intersect?

I am trying to make thick forest in blender using emitter or hair emitter. The problem is that with huge ammount of trees they intersect with each other and I do not want that to happen. I did use ...
13
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4answers
4k views

Make animated particle object start animation from the beginning when emitted?

So I made a sphere which rotates and scales and changes color. I wanna use it as a particle, which I can do. So now I have a stream of spheres which rotate and scale in perfect sync. What I want is ...
12
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2answers
1k views

Making weather effects in the BGE

This type of snowfall looks nice: If that example was made in Blender Internal or Cycles, I'd say particles were used - but particles clearly don't work in the BGE. How can a weather effect such as ...
12
votes
4answers
13k views

Is it possible to hide particle emitters in the viewport without hiding particles?

Is it possible to hide a particle emitter object in the 3D view while keeping particles visible? I know you can do this in the render with the Render Emitter setting, but this does not affect the ...
12
votes
2answers
12k views

How can you change the curve resolution of hair particles?

How can I change the curve resolution of hair particles? It seems that by default, hair consists of 4 segments. Which is fine most of the time, but for long hair this does not work at all, as in ...
12
votes
1answer
3k views

How can I simulate powder with a particle system?

I want to simulate powder, are particles the best job for this and if so what settings could I use to achieve this in Blender?
12
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1answer
6k views

Abstract Wave with Particle System

I want to create a wave made out of particles/dots. The wave should look like this: I tried to achieve this effect by adding an ocean modifier to a plane. Then I added a particle system to the plane ...
12
votes
1answer
2k views

Set minimum distance between hair particles

I have a mesh with a hair particle system, with mesh objects as hair particles. As you can see in the image below, some of the objects intersect with eachother. I would like to set a minimum ...
12
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1answer
9k views

How to correct collision between particles

In the use particle system how to avoid two particles intersect each other as in the following figure: Our settings for ...
11
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1answer
792 views

Random sized cylinders with no intersection/gaps

I'm trying to find a way to achieve an extruded version of what the image below shows without having to manually scale every cylinder. I tried particle systems (hair, both vertex and face modes), but ...
11
votes
4answers
6k views

Even hair particle distribution

I'm trying to get my hair particles to distribute evenly across a surface of a object. The problem is that there's only three ways to distribute particles: Verts, Faces, and Volume. My mesh surface ...

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