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Questions tagged [particles]

Particle in computer graphics usually refers to the small, simple images or 3D models (meshes) that are governed by and make up a particle system, usually used to depict a fuzzy object (e.g. fire, smoke, glowing trail left behind by a meteor).

Particle (in computer graphics)

Particles are small units that together represent a fuzzy object in a particle system. Over time the system generates particles, which move and change from the origin of creation (or emission) and eventually die or fade away. Link to academic paper

Particle can have a different meaning depending on if the field is computer graphics, nanotechnology, or physical sciences

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lua - table maintenance (particle system related)

The update() function below gets called on every frame of a game. If the Drop particle has y value greater than 160 I want to remove it from the table. The problem is that I get "attempt to compare number with nil" errors, on the line notated…
clua7
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THREE.JS | GLSL Set particle colour by scene texture

I have matrix of GLSL particles (THREE.Points), which have to be coloured by overall scene texture. So, the result should be like this: Yeah, I can create canvas and set buffer.color by ctx.getImageData(left, top, width, height), but is it…
VVK
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Proper implementation of Particle Designer plist emitters in cocos2d?

I'm confused about how to properly use emitters made in Particle Designer with Retina displays in cocos2d. I have tried using an emitter with a non-hd texture (fire.png for example) saved as "particle.plist" with and without the texture embedded and…
Steve
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Efficient way to redraw hundreds of particles in flash?

I am just starting to learn flash/actionscript 3 and decided to code up a simple particle simulator. The very initial design simply involves filling the screen with a buncha particles which scatter away from the cursor if you were to click. This…
Razor Storm
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Python: Measuring a particle size in an image from a given reference?

I am a python beginner. I am working on counting and measuring particle sizes from 100s of images. I have an example image below. The particle with the arrow pointed towards it is 20 microns in height and width diameter. Is there a way to use that…
racemic
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Move part of a Cocos2d project, into another project

I'm from France so excuse my poor english. So I have a project which don't use cocos 2d with a ball which is mooving, and I have another project but with cocos 2D where there are particles. What I want to do is to bring the part of the cocos 2d…
arvin Arabi
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xcode iphone particles without cocos2D

is it possible to have particles without using cocos 2D. I know particle designer but we have to use it with cocos 2D. How can I make particles without cocos 2D ??
arvin Arabi
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THREE.JS: Particle repulsion in all axes [XYZ]

var blob =…
VVK
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Preserving Ajax page state with URL hash

There is a page on my site with two sets of tabs, each tab's link is ajax-driven but has a proper href in case javascript is not enabled. I'm about to implement an ajax 'back-button' solution using a plugin such as jQuery Address. My…
Brian
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3D mesh to particle cloud conversion

I need to convert arbitrary triangulated 3D mesh to cloud of particles that are uniformly spaced. First thought was to try find a way to fill one 3D triangle. And then fill each triangle of mesh, removing duplicated particles on edges, but that's…
J.B.
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About 120 000 particles on canvas?

I have about 120 000 particles (each particle 1px size) that I need to find the best and most important: fastest way to draw to my canvas. How would you do that? Right now I'm basically getting my pixels into an Array, and then I loop over these…
nickelman
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want to build web site by django for take a value by Temperature sensor on particle-Photon

i want to build an web site by djnago. this site could be able to take values from Temperature sensor which is connection with my particle-Photon. i checked the net but i do not found an compatible libary Which could be connect my Photon and django…
Anas Mansour
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iOS - How to achieve a particle animation like effect on iOS

I have seen a particle scattering effect on a number of websites and app design concepts on dribbble. The effect is like this:- https://www.craftedbygc.com/ The effect can also be seen as shown in this…
Shikhar varshney
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Finding particles in the same cell on a 2d grid

It's a sort of an algorithmic question, without a bond to any of the particular languages. Let's say I have Np point particles with continuous (read double) x, y coordinates on a 2d plane. The 2d plane is divided into N ⨉ N cells. For each particle…
hayk
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Slowing down particles of an SKEmitterNode

I was just curious, is there a way to slowdown particle emitting along the other objects in the scene. Say you have one particle emitter, and one sprite. Sprite is moved using SKAction. An emitter is emitting. Both nodes are added to the scene. If…
Whirlwind
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