Particle refers to a graphics technique that uses a large number of very small sprites or other graphic objects to simulate certain kinds of "fuzzy" structures like fire, explosions, etc.

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Particle friction with variable timestep in XNA

Alright, so I'm working on an engine of sorts in XNA (yes, it's deprecated, I know) and I'm implementing my own particle system. I've defined a "ParticleEffect" such that when it's supplied a GameTime ...
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1answer
345 views

DirectX particle system. ConstantBuffer

I'm new in DirectX and I'm making a 2D game. I want to use a particle system to simulate a 3D starfield, so each star has to set its own constant buffer for the vertexshader es. to set it's world ...
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4answers
750 views

How to implement soft edge areas with particles

My game is created using Phaser, but the question itself is engine-agnostic. In my game I have several environments, essentially polygonal areas that player characters can move into and be affected ...
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1answer
163 views

Making particles accelerate toward a mouse point

I'm currently working on a particle simulation program that makes pixels move towards a mouse point continually accelerating, but i'm running into some math issues. Currently my particle will ...
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3answers
128 views

Identify a selected prefab rather than all of them [closed]

I am trying to play a particle effect when an enemy is killed but it seems to play on a randomly selected one rather than the one that was hit. However the enemy that was hit still disappears and ...
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1answer
78 views

Particle system: BlendMode of particle's draw call

I noticed by reading some tutorial around the web, that when dealing with particle systems, you can both use these approces: Black background on the single particle and additive mode as blending ...
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1answer
95 views

Blending issue with framebuffer

I'm trying to get some particles to work properly - they should blend among themselves but not with the background color. For this I'm using additive blending, textures with premultipled alpha and set ...
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3answers
449 views

How can I render something like the swirling clouds of Jupiter?

The effect should be as similar as possible to this, though it does not need to be at planetary scale. I was thinking that it could be done offline via particles, perhaps by directing their motion ...
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3answers
2k views

XNA: How to make particles face the camera but not alter the pitch

I'm using the particles sample from create.msdn.com/en-US/education/catalog/sample/particle_3d which by default, has all the particles look straight at the camera. I'm trying to modify it so that the ...
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1answer
455 views

How can I implement beam effects like these?

I am interested in the techniques I could use to create the following effects: Can I accomplish this with a particle system or a series of texture quads, or what? You can see this effects in ...
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2answers
197 views

Best practice for handling “dead” objects and their particles

I'm developing a side-scrolling run'n'gun game (but with planes! :P). I'm an experienced coder, but new to game development. When an enemy plane collides with a friendly missile, I start an explosion ...
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2answers
2k views

Recommend a way to draw thousands of particles (liquid) per frame in Unity3d

I'm writing a plugin for this library for Unity3d. I have it working and now I am looking for an efficient way to draw the particles. My 1st test just uses sprites and runs fine on my laptop but I ...
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1answer
2k views

Persist emitted particles in scene after particle system has ended/destroyed?

In Unity, is is possible to persist emitted particles in a scene after the system has ended or even possibly destroyed? I have a particle system attached to my player prefabs that does a rudimentary ...
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1answer
1k views

unable to launch LibGDX Particle Editor.jnlp

I am not able to launch LibGDX ParticleEditor.jnlp file on my system(win7 64 bit) with java7. when I execute this file with javaws.exe in jre7/bin folder, it displays splash screen of badlogic games ...
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1answer
389 views

Why are my geometry-shader-generated billboards not showing up given the following code?

My program is a rain particle system. After processing a list of positions of rain particles, I passed them to the geometry shader for generating a billboard for each position. If I use a simple ...
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1answer
348 views

overlapping 3d particles not blending nicely when at the same z

I'm working on a 3d particle emitter. It's going pretty good but I'm still having a problem with triangle sorting. As you can see in the photos, there are some particles that are not blending ...
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2answers
300 views

Adding an angle variance to a 3d vector

I am converting a particle emitter from 2d to 3d. In the 2d system the original coder used a random angle variance and added it to the angle. So it would be something like: thisAngle = emitterAngle ...
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1answer
352 views

Rendertarget and alphablending problem (Offscreen particle rendering)

Today, I have implemented soft particles by rendering them to a separate render target and blending that with the scene, which worked as expected with additive blended particles. In that case I render ...
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1answer
661 views

ParticleEffectPool.obtain() not resetting particles

I want to use ParticleEffectPools in libGDX but I'm running into an odd issue where the effects don't seem to be reset when obtained by the pool. The code below looks for an existing ...
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1answer
351 views

Starting with shaders and particles

I'm working on a flow field with particle systems and starting to learn about shaders in three.js. Current state of my work is available here. As such amount of calculations is quite heavy for a big ...
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1answer
395 views

Particle movement in three Dimensions

I have created a particle system which movement is controlled by a flow field over perlin noise - Available here. I would be very thankful for any ideas and tips how to control their movement on the ...
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1answer
90 views

Particle system lifetimes in OpenGL ES 2

I don't know how to work with my particle's lifetimes. My design is simple: each particle has a position, a speed and a lifetime. At each frame, each particle should update its position like this: ...
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2answers
1k views

How to create a magic orb like in Skyrim?

How would I go about creating magic orb that looks like from magic menu in Skyrim in Unity3D? Here is what I have in mind: Orb Image And a video of that effect from 0:09-0:13: Orb Video
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103 views

Texture not visible on particles

This is the first time I am working with particles (GL_POINTS) I am using kinematic equations and controlling their movement in vertex shader. I am following an example given in OpenGL 4.0 Cookbook ...
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1answer
162 views

Particles placed in the middle of the screen (OpenGL ES 2 / Android)

It seems like each of my particles is placed at (0, 0, 0) even though I'm setting different positions for each of them (debugger also confirms this). It must be something really silly that I'm ...
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1answer
124 views

Generating and rendering not point-like particles on GPU

Specifically I'm talking about particles as seen (for example) in the UE4 dev video here. They're not just points and seem to have a nice shape to them that seems to follow their movement. Is it ...
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49 views

Powder physics, how to efficiently find out where other particles are [duplicate]

You might be familiar with games like powder toy or powder game or some variation of it. I'm working on a very basic and similar game with just sand and water to learn a bit how it on works. I use ...
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1answer
265 views

How can I set a system's emission rate using Particle Designer 2.0?

In cocos2d-iphone (2.1), CCParticleSystem has a property called emissionRate. Is there any way to set it using Particle Designer 2.0? I've tried all the various settings but there doesn't seem to be ...
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4answers
7k views

How to create a Raining Effect(Particles) on Android?

I am developing a 2d android strategy game, it runs on SurfaceView, so I can't(or can I?) use LibGdx's particle system. And I would like to make a raining effect, I am aiming for something like this( ...
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3answers
799 views

OpenGL ES 2 - Developing snowfall particle system

I've recently begun OpenGL ES 2 and I'm trying to implement a snowfall (on Android), but I'm not sure what's the best approach. I would like to develop it myself rather than use a library. It really ...
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1answer
72 views

Translate velocity to mouse curos position

I have particles, with a velocity (x and y) per tick. I would like to to make my cursor a gravity force, so particles fly to the cursor's position. How can I apply gravity (that is towards my cursor ...
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844 views

ANDEngine : 3d rotation in Particle System

Im using ANDEngine and wants to create confetti particle system. But im unable to make flipping and rotation of confetti particle around z-axis Since andengine is 2d engine, it doesnot support that. ...
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140 views

Particles and gravity

I don't really know how to search for what I'm looking for which is why I think it'll be easier to ask on here. I'm creating a webpage and I had the idea of having random glowing particles floating ...
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1answer
173 views

How are done “snake” particles?

I thought that particles were basically GPU-powered sprites. After looking at the following demo, I'm not totally sure of that anymore : http://vimeo.com/18715688 How are done those snake-like ...
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3answers
322 views

Why Index Particles?

This is a general question, but as a specific example, I'll use the XNA Particles3D sample (http://xbox.create.msdn.com/en-US/education/catalog/sample/particle_3d). What is the point of the index ...
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1answer
150 views

Pygame Particle Emitter Problems

so I've been trying to create a basic particle system in pygame which I can later expand upon but I've run into a spot of bother creating the particle emitter. Obviously what's supposed to happen is ...
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1answer
328 views

Xna Particle Explosion like Geometry Wars

I am making a game, in similar graphics display as Geometry Wars. In Geometry Wars (noticeable in the title, as well as when you blow up an enemy), there are these colorful explosions that emit, then ...
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2answers
2k views

Improving performance of a particle system (OpenGL ES)

I'm in the process of implementing a simple particle system for a 2D mobile game (using OpenGL ES 2.0). It's working, but it's pretty slow. I start getting frame rate battering after about 400 ...
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1answer
168 views

CCParticleSystemQuad works as intended every second time

I'm using CCParticleSystemQuad for particles, loading it from plist: flourEmitter = [CCParticleSystemQuad particleWithFile:@"FlourParticles.plist"]; But it works not every time. Every second or ...
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1answer
870 views

How do you add rotation to particles?

Today I was working on a particle system and I can't figure out how to give the particle billboards a rotation (so to have them spinning clockwise or counter-clockwise while facing the player). I ...
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1answer
295 views

2D Particle Physics [closed]

I am wanting to write small Particle and ParticleEmitter Classes for a HTML5 Canvas Game (Though, just discussing it in pseudo code is fine) I am not great, at all, at Physics, and I don't want to ...
7
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2answers
698 views

How to define areas filled with water?

I would like to enhance my little game engine with nice looking water simulation. To start working on that I need to find a proper way to represent water in the game. Unfortunately I don't know much ...
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2answers
865 views

How do I create a “flying through space” effect?

On the Final Destination stage in Super Smash Bros Brawl (and SSB Melee) the players fight on a platform seemingly moving through space: I see particle effects, but I don't understand how they made ...
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2answers
2k views

Playing different particle effects in Unity on the same ParticleSystem

The question really sums it up: What is the best way to use one particle system for playing different particle effects? The scenario: GameObject is picked up and it starts playing a simple indicator ...
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3answers
1k views

Fast method of detecting whether point is inside mesh

I'm trying to construct a 3d object from a large number of particles. I think this is called BVH (Bounding volume hierarchy). I figured the best way is to draw the particles inside the mesh, then let ...
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2answers
756 views

Alternatives to multiple sprite batches for achieving 2D particle system depth

In my 2D XNA game, I render all my sprites with a single sprite batch using SpriteSortMode.BackToFront and BlendState.AlphaBlend. I'm adding a particle system based on the App Hub particles sample. ...
3
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1answer
2k views

How do I properly use particle simulation in Unity?

So I'm using Unity's simulate function to pre-render particles. It seems that simulate is not quite working as to what I expect. It's most likely a setting that I missed. But I just really cannot find ...
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1answer
1k views

GPU particle system using vertex texture fetch in Direct3D9

I've been reading up on particle systems amongst other stuff and one interesting approach uses rendertargets to store a particle's position, velocity, lifetime, etc. A pretty neat summary is given ...
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3answers
655 views

OpenGL ES 2.0 - How to batch draw particles that have unique translations, rotations, scales, and alphas?

I've combined all of my vertex data for many particles into a single array. How would I batch draw all of those particles in a manner that preserves their unique translations? Any code examples ...
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0answers
473 views

Libgdx Particle Editor: Blank UI elements

How can I get Libgdx Particle Editor to run properly on my 32-bit Windows 7 machine? When I run it, the UI elements are blank like this: