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I should create a vector rectangle filled with a gradient made of 4 colors, one for each corner. I could just find some very generic information about using live blends, but I am not sure that is the best tool and still I was not able to do this. How would you get that in Illustrator exactly? (And secondary in Photoshop?)

4 colors gradient (this image comes from the Photoshop color picker)

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You could just draw squares and use a Gaussian blur, couldn't you? –  Jeremy Jul 13 '13 at 2:01

1 Answer 1

up vote 5 down vote accepted

Gradient Mesh in Illustrator

  • draw a rectangle
  • select the Mesh Tool
  • click one corner of the rectangle
  • apply corner color
  • Select the Direct Selection Tool
  • Click another corner anchor and apply color
  • repeat for remaining corners

mesh

There's no simple, one-click solution for a gradient of that nature.

Shape Layers in Photoshop

For Photoshop, the processes is much more cumbersome and involved and nowhere near as precise.

One method could be to use a separate shape/vector layer for each corner, then a solid filled shape as a base.

final

You basically set a gradient for each shape:

gradient

Then once you have the 4 shapes with Gradients change their blending modes to Darken. You don't absolutely need that bottom white rectangle I used. But things won't look quite right without a solid color (preferably white) background behind the gradient shape layers.

Another method for Photoshop could be to simply grab the Gradient Tool, set a color to transparent gradient and then drag from a corner. Repeat for each of the 4 colors. The problem with this method is that each time you drag, the length of the gradient will be different. So, you won't end up with 4 equal corner gradients. The Vector Layer/Shape Layer method ensures the gradients are all the same length.

In the end, I'd simply generate this in Illustrator and then copy/paste to Photoshop as a Smart Object.

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A smart object in Photoshop (from Illustrator) looks the best and simplest solution actually. It also allows you to modify the gradient! Thanks for your very detailed answer. –  taseenb Jul 14 '13 at 14:26

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