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Layers Panel

  • What are all the icons I don’t know about? ***
  • Lock Icons. Locks transparent pixels so they can not be painted over, only the image area. Locks the image from being edited. Locks layer position from moving. Prevents auto nesting. Locks all.

Shortcuts

  • ALT + CLICK on the eye symbol for a layer toggles all the other layers on and off. Useful for a before and after view.
  • Double Click to the right of the layer to bring up the Blend Modes panel.
  • ALT + CLICK towards the bottom of a layer icon and a small square appears, drag it down to the junction with the next layer below and CLICK and it creates a Clipping Mask so that it only affects the layer below.
  • SHIFT + +/- -  Toggles between different blend modes. Ensure the Move tool is selected. [Also in Layers]  [Also in Blending Modes]
  • CMD + E merges all selected layers into one layer. (or layers in a group??)
  • CMD + ALT + SHIFT + E Created a merged layer of every visible layer as a single layer above all the other layers with out altering any of the other layers. this is Calle ‘Stamp Visible’. This is not in a menu. Make sure the top layer is selected first so that the stamp appears as the top layer. 
  • CMD + ALT + CLICK on a later selects the contents of that layer, even if it does not occupy the whole layer. Selecting like this is difficult to do otherwise. 
  • SHIFT + CMD + N Creates a new layer above with an option box asking you for the details.
  • SHIFT + ALT + CMD + N Creates a new blank layer above.
  • ALT + CMD + G Creates a clipping mask to the layer below.

Information

  • Layers can be copied and pasted. Highlight a layer. Press CMD + C. Go to another document and press CMD + V to paste it. (Ref)
  • Resize layers from the centre with SHIFT + ALT. The anchor point in the centre can be dragged to another point and it will then rotate from this new point with SHIFT + ALT. (Ref)
  • Individual layers can be rotated when in Transform mode (?) by right clicking and choosing Flip Vertical etc. Also rotate by dragging the corners from outside the bounding box, or hold SHIFT to rotate it at 15 degree intervals. (Ref)

Add a New Image as a Layer From Another Document

  • If you have the texture visible in Finder, then drag and drop it into the Photoshop program icon and it will open as a smart object. (Ref
  • Open the image in Photoshop. Click CMD + A to select the whole of the image. Click CMD + C to copy the image to the clipboard. In the document you want to open the image in click CMD + V to paste it in as a new layer. (Ref)
  • Drag the image from the Finder and release it in the editing area where you want it to open. This produces a new layer which is a Smart Object. (Ref)
  • Layers can be copied and pasted. Highlight a layer. Press CMD + C. Go to another document and press CMD + V to paste it. (Ref)
  • (Links from Adding Textures to Images)

Groups

  • A Group can have a Layer Mask and can also have an Adjustment Layer clipped to it, which can also have a mask.

Clipping Masks

  • A Clipping Mask is simply a mask that is clipped to the layer below it, so that it only effects that layer and not everything else under it, as it normally would. This can be really useful for limiting the effect of this layer only to the precisely masked area of the layer below.
  • A Clipping Mask is indicated as being present in a Layer when there is a small downward pointing arrow next to it. 
  • ALT + CMD + G Creates a clipping mask to the layer below, alternatively Right Click on the Layer and select Create Clipping Mask.
  • Be careful not to move or add any other layers immediately below the Clipping Mask as it will automatically clip to the layer below it. It is often better to Group Layers and Clipping Masks together, as otherwise any layers that are moved can clip to these or unclip them.
  • Clipping Masks can be added to a Group.
  • Clipping Masks can be stacked one above the other and each of them only effects the actual image below.

Blending Modes

Linked From