Making cast shadows in photoshop
This photoshop tutorial will show you how to make very realistic shadows in Photoshop.
You will learn how to make the shadow, how to position the angle and length. A realistic shadow fades and softens as it gets further away from the point of contact. I will show you how to do all of this very easily in Photoshop. You will be very happy you watched this tutorial next time you create a composite in photoshop
Note, this is my original method of creating Shadows that I have used for a long time. I say that because a lot of people plagiarize on the web and don’t give proper credit. Notice, I’m not monetizing, I actually want to help.
(BTW My newsletter is unique in that I do the same thing, I share completely free tutorials and don’t try to constantly sell things, join from the form on the right and also get the goodies in the vault).
Part 1 making the Shadow
Lets start with a photo of the Louve, Paris.
Notice there is a cut out person on a layer at the top, that’s currently hidden. I have other tutorials on how to cut out a person and how to combine images.
We will make the shadow in 3 steps.
I have turned the top layer on.
Now we have a person on a layer above the background. It needs a shadow to look realistic and believable.
Choose the layer with the person from the layers panel. Click fx to open the layer styles, choose drop shadow.
We are going to use the shadow in a different way than you might be used to. (We want a cast shadow, not merely a drop shadow).
Copy these settings;
Black Shadow, Opacity =0, Distance, Spread and Size all to 0.
Click ok
You will see a Drop Shadow added to the layer.
You won’t see much of a difference on the image, maybe a small black outline.
We want to convert the Effect into a layer.
Right Click on the drop Shadow in the Layers panel
Choose Create Layers
Now the FX will be converted to a pixel layer of a black silhouette
Part 2: Positioning the Shadow
Choose the Layer
Press Ctrl/Cmd+T for free transform (Ctrl = Windows /Cmd = Mac)
Right-Click and choose Flip Vertical
Now the shows is flipped upside down, just how we want it.
With the move tool (V) drag the shadow down until its touching the lowest point on the person
Take notice of the direction of the shadow coming off the light source. (The sun setting behind the building and lamppost).
Rotate the shadow to match
Right-Click and choose skew
Skew the shadow so the bottom of the person is touching the shadow
also stretch it to make it longer
I dragged the bottom a bit more to the left to match the existing shadow angles
Part 3: Soften the shadow
Look at the existing Shadow. Notice its softer, But not in proportion.
As the shadow gets further away from the subject it gets softer. Notice it also becomes more transparent. We will match that now.
Choose Filter>Blur Gallery>Field Blur
You will now get the Blur Gallery workspace.
Click to add a pin and adjust the amount of blur by dragging the wheel on the pin
Click closer to our person and add a second pin.
Make this one less blurry. This is how we blend the blur
Click ok and we now have a blended blur. Notice is sharper as we get closer to the person.
We will fade the transparency in a moment, but first, lets touch up the shadow, because its not touching the dress even though the dress is touching the ground. This step is optional.
Press Ctrl/Cmd+T for free transform.
Right-Click and choose Warp
Drag on the top of the shadow and warp it into shape if you need to.
Fading transparency on the shadow
Choose the shadow layer and add a Layer Mask by clicking the Layer Mask icon at the bottom of the Layers Panel.
Choose the Gradient Tool
Set it to black to white and Linerar
Drag the gradient along the height of the shadow
Adjust the gradient so the shadow fades away towards the bottom
If you need to, adjust the opacity in the lyaers panel and there you have it, our shadow is done.
Thanks for checking it out, I hope you found this Photoshop tutorial useful.
Colin
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