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I just started looking into particles with Blender.

I'm familiar with the concept (I also work with particles inside Unreal Engine), and experimented already with force fields.

What I'd like to do is some kind of "static particle system", where I just need to render one image that later I will simply put over a photo with Gimp.

Basically I'm looking for something like this: http://www.4rand.com/TEST/Krakatoa/TurbSpawn/furball100m4k.png

Is it possible to achieve a similar result with Blender? Any suggestions?

Thank you very much.

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Is it possible to achieve a similar result with Blender?

Yes. Absolutely.

What follows is a sloppy facsimile to demonstrate technique not artistry. You are the artist. The background use is black for legibility. I have no idea of your future background. Blender Render not Cycles. No lights. Emission material.

enter image description here

You wrote

over a photo with Gimp

Your writing seems to imply you want a transparent background.

Any single or range of frames can be rendered and saved to disk with a transparent background.
PNG format.

Because you state you only want one image and not a sequence that can be critiqued as a moving image you might just need a circle or sphere mesh and generate particles or spherical texture for density. Forces are convenient. The movement or location might come from the [normal velocity] of the Blender Particles System. Color and Blur if that suits you in the Compositor

The particles themselves can be group of mesh objects or PNG bill board images. You can also generate all particles in 1 or 2 frames and by the 3 frame the image is static if there are not forces, normal velocity, gravity or similar. Splurge and generate a few hundred images and pick the one you want. Since the shape is generally circular spherical you can layer PNGS with rotation for increased density.

If you do not value your originality, and the mentioned image is intended for sharing you could you can also remove the background from the image. GIMP or Blender Compositor.

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    $\begingroup$ "If you do not value your originality..." you got me laughing with this one >_< $\endgroup$ – Mentalist Aug 27 '15 at 16:33
  • $\begingroup$ I guess I should have a show in Las Vegas, $\endgroup$ – atomicbezierslinger Aug 27 '15 at 16:34
  • $\begingroup$ Thanks @atomicbezierslinger, really helpful. What you did in your image is basically what I'd like to do. Could you expand on the technique? I just need to understand where to start, then I'll go with trial and error, it would be much appreciated. $\endgroup$ – Delere Aug 27 '15 at 19:15
  • $\begingroup$ Please. State how many months experience you have with Blender. 0, 1, 2, 36? Create a sphere. Add a particle system. Render. Your results can be less than perfect. You need a stating point. Put your image in the original question to be seen. We need to see your efforts as an image. If you do not understand what I wrote here then I suggest a tutorial. Link youtube.com/watch?v=jLjwN_JqUGU . Quick Search I performed. You need to show some effort. Feel free to issue a merit or demerit for this response. – atomicbezierslinger 1 hour ago $\endgroup$ – atomicbezierslinger Aug 28 '15 at 0:55

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