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MOTIVATION Think-Pair-Share THINK- How can you describe a Layer Mask? PAIR- with the person seated next to you SHARE- your responses 9/26/2010 2 ESALVAREZ
A Review ADJUSTMENT LAYERS How do you differentiate gradient adjustment layer to hue/saturation layer? How do you differentiate pattern fill adjustment layer to solid color adjustment layer? 9/26/2010 3 ESALVAREZ
Lesson Objectives Describe a layer mask Identify the purpose of a layer mask Enumerate the steps for creating layer mask Enumerate the steps for modifying a layer mask
What is Layer Mask? It is used to hide an area in a layer to show the corresponding area in the layer below. To hide an area in the layer, paint black the area in the layer mask that corresponds to the area you want to hide. Painting an area of the layer mask white will make the corresponding area in the image visible.
Creating Layer Mask Method 1: Click the Add layer mask icon in the layers palette. Method 2: Click [Layer]-[Layer Mask] in the menu bar.
Creating layer mask that shows the entire layer Click the layer that you want to create a layer mask to select it. In the layers palette click the Add layer mask icon.
Method 2 Alternatively, you can click [Layer]-[Layer Mask]-[Reveal All] in the menu bar to create a layer mask that shows the whole area of the selected layer. 9/26/2010 8 ESALVAREZ
9/26/2010 9 ESALVAREZ Click the Layer Mask icon
Creating layer mask that hide the entire layer Click the layer that you want to create a layer mask for. Press the [Alt] key ([Option] key on Mac) then click the Add layer mask icon in the layers palette.
Method 2 [Layer]-[Layer Mask]-[Hide All] in the menu bar to create a layer mask that hides all areas of the selected layer. 9/26/2010 11 ESALVAREZ
9/26/2010 12 ESALVAREZ Press ALT key, then click the ADD LAYER MASK icon
Editing a layer mask using the Brush tool Click the layer mask thumbnail to ensure that it is selected. Notice that the foreground and background colors are set to white and black respectively. You can switch the foreground and background colors by pressing the X key on the keyboard.
Set the foreground color to white if you want to reveal an area of the layer
Set it to black if you want to hide a portion of the layer so that the layers below becomes visible.
9/26/2010 14 ESALVAREZ Using the BRUSH tool
Editing a layer mask using the Brush tool Select the brush tool from the layers palette then paint on the area of the layer that you want to show or hide. You can change the opacity of the brush in the tools option bar to adjust the intensity of the brush. Optionally if you want to view the layer mask only, press the [Alt] key ([Option] key on Mac)then click the layer mask thumbnail in the layers palette. On the document window you will see the content of the layer mask that you are currently working on. This will give you a preview if you are modifying the layer mask correctly.
Editing a layer mask using the Gradient tool Click the layer mask thumbnail to ensure that it is selected. Select the Gradient tool in the tools palette.
Using the gradient tool 3. In the tool option bar, choose Black, White gradient fill from the gradient picker dropdown list, select linear gradientoption, and set the blending mode to Darken . 9/26/2010 18 ESALVAREZ
9/26/2010 19 ESALVAREZ Using the GRADIENT TOOL
recapitulation ONE-MINUTE-QUESTION How do you differentiate the methods (using the Brush tool/Gradient tool) to edit a layer mask? 9/26/2010 20 ESALVAREZ
OBJECTIVES for the next lab activity Explore a layer mask Explore the functions of a layer mask to edit an image Apply the steps for creating a layer mask Apply the steps for modifying a layer mask USING THE BRUSH TOOL AND GRADIENT TOOL 9/26/2010 21 ESALVAREZ