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How to make Lightning bolt and Electricity Effects? (6 posts)

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dvsantos4p said 6 months ago:

Hi guys,

What are the best ways to implement lightning bolts, beams and electricty effects in JME3?

Obtaining effects like this one would be great: http://www.ramblingsofagamer.com/wp-content/uploads/2010/01/Infamous-Game.jpg

Actually, my doubt is essentially the same as I found here: http://www.ogre3d.org/forums/viewtopic.php?f=2&t=36135

Tks,

Diogo

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wezrule190p said 6 months ago:

particle emitters are the easy way to get these effects:

http://jmonkeyengine.org/wiki/doku.php/jme3:beginner:hello_effects

http://jmonkeyengine.org/wiki/doku.php/jme3:advanced:particle_emitters

i actually made a rubbish lightning effect the other day

or you can look at shaders

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Sploreg200p said 6 months ago:

Glow can help with the effect. Bloom and Glow
You will no doubt have to dive into the realm of shaders to get the effect you want.

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pspeed805p said 6 months ago:

A simple trick for lightening bolts is to fractally subdivide a line with some random offsets. At a high level:
-take a line
-find its midpoint
-offset the midpoint by some random amount
-repeat with the two halves and a smaller random amount

Then use bloom and glow on it.

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dvsantos4p said 6 months ago:

I´ll try first to make something using particle emitters. It seems to be a good starting point to try it in JME3, although It may not be the most suitable way for this kind of effect.

The techniques I´ve googled up until now are these:

Using GLSL Shaders:

http://blenderartists.org/forum/showthread.php?235244-GLSL-Electricity-Shader

Billboard Chains and Ribbon Trails, among others:

http://www.ogre3d.org/forums/viewtopic.php?f=1&t=56670&start=0

Some procedural way, using Perlin Noise:

http://unity3d.com/support/resources/example-projects/procedural-examples

What do you think about them?

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pspeed805p said 6 months ago:

I think the last one is similar to what I described except using perlin noise as the random source. I guess it just depend on what you want to do with it and how you want it animated.

The first one was a 2D effect which I personally find much less interesting.

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