4.560/4.561 Photoshop Channel and Mask Demo

demo1, demo2, demo3, demo4

Instructor: Prof. Takehiko Nagakura
Last modified: 2011.02.03. by TN
All rights reserved.

 

Demo 4

The following example combines two images together and creates a shadow using layer masks and layer styles.

1 Open both marble.jpg and column.jpg in Photoshop.
2 In marble.jpg, double-click on the background layer and rename the layer to "marble".
3 Next create a new layer in marble.jpg that is completely white. In the layer palette, click on the little triangle in the upper right-hand corner and select New Layer.... Name the new layer "white" and move the white layer so that it is below the marble layer in the layer palette stack.
4 Select the marble layer and add a layer mask by clicking on the squared icon next to the trash can at the bottom of the layer palette. Alternatively, you can use the menu,     Layer > Add Layer Mask > Reveal All
Alt-Click (click with Alt key down) on the layer mask to make it viewable in the main screen.
5 In column.jpg, select the entire image (Ctrl-A) and copy it (Ctrl-C). Then paste (Ctrl-V) it into the layer mask of marble.jpg. After pasting, invert the image (Ctrl-I).
Click on the marble icon in the layer palette to see the effects of the layer mask. You should see a column shape filled with marble pattern.
6

To create a drop shadow, double-click on the marble to bring up the layer style options. Check Drop Shadow. Set the angle to 135, distance to 5, size to 7, and click OK.

Haldane Liew - 2003.09.02