How to simulate long exposure light trails?

How can I apply long exposure lighting effects to a road (ideally using Photoshop or Illustrator)? See the image below for an example.

How can this be achieved?

long exposure light trails


Per the asker’s request, here’s a solution that can be done in Illustrator:

First place the picture in Illustrator and lock that layer. Then, with the pen tool make paths that are similar in shape to what you are looking for.

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After you’ve made a few, you can star picking the colors you need. Unlock the layer with the picture, lock and hide the layer with the stroked you made and choose a color on the light path. Save these colors to your swatches and relock the picture, unhide and unlock the paths.

Select the paths. Make sure you have stroke color selected and select gradient (the middle button underneath the stroke and fill selectors)

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Now, select each path individually and open your gradient tool. Make sure you put the color mode in RGB (I think it defaults to Greyscale) by clicking the dropdown in the upper right of the tool window and select RGB. Now select the fist color in the gradient tool and change it to the colors you saves to your swatches and start adjusting where they need to go on the slider. You may have to click the reverse button above it if your colors are backwards on the stroke.

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Once you have as many as you want, you can thin out the stroke thickness if they seemed too much.

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You should have something similar which you can then copy into Photoshop and create some glow effects and shadowing or anything else that Illustrator doesn’t do as well as Photoshop.

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Keep in mind that the pen tool which I used in this tutorial has a steep learning curve so it will take a lot of practice to get the lines right if you’ve never used the tool before. I suggest watching a few tutorials on YouTube before starting, just as a primer.

Source : Link , Question Author : Bala , Answer Author : OghmaOsiris

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