About layers Photoshop layers are like sheets of stacked acetate. You can see through transparent areas of a layer to the layers below. You move a layer to position the content on the layer, like sliding a sheet of acetate in a stack. You can also change the opacity of a layer to make content partially transparent. Transparent areas on a layer let you see layers below. You use layers to perform tasks such as compositing multiple images, adding text to an image, or adding vector graphic shapes. You can apply a layer style to add a special effect such as a drop shadow or a glow. See a Video tutorial: Understanding layers for an overview on working with Layers. Organizing layers A new image has a single layer. The number of additional layers, layer effects, and layer sets you can add to an image is limited only by your computer’s memory. You work with layers in the Layers panel. Layer groups help you organize and manage layers. You can use groups to arrange your layers in a logical order and to reduce clutter in the Layers panel. You can nest groups within other groups. You can also use groups to apply attributes and masks to multiple layers simultaneously. Layers for non-destructive editing Sometimes layers don’t contain any apparent content. For example, an adjustment layer holds color or tonal adjustments that affect the
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Transcript
About layers
Photoshop layers are like sheets of stacked acetate. You can see through
transparent areas of a layer to the layers below. You move a layer to position the
content on the layer, like sliding a sheet of acetate in a stack. You can also
change the opacity of a layer to make content partially transparent.
Transparent areas on a layer let you see layers below.
You use layers to perform tasks such as compositing multiple images, adding
text to an image, or adding vector graphic shapes. You can apply a layer style to
add a special effect such as a drop shadow or a glow.
See a Video tutorial: Understanding layers for an overview on working with
Layers.
Organizing layers
A new image has a single layer. The number of additional layers, layer effects,
and layer sets you can add to an image is limited only by your computer’s
memory.
You work with layers in the Layers panel. Layer groups help you organize and
manage layers. You can use groups to arrange your layers in a logical order and
to reduce clutter in the Layers panel. You can nest groups within other groups.
You can also use groups to apply attributes and masks to multiple layers
simultaneously.
Layers for non-destructive editing
Sometimes layers don’t contain any apparent content. For example,
an adjustment layer holds color or tonal adjustments that affect the layers below
it. Rather than edit image pixels directly, you can edit an adjustment layer and
Option-clicking (Mac OS) the same eye icon restores
the original visibility settings.
Drag through the eye column to change the visibility
of multiple items in the Layers panel.
Note: Only visible layers are printed.
Photoshop, Layers 101 - By Colin Smith
Layers were introduced in Photoshop 3.0. This totally revolutionized Photoshop. For the first time you could do
complex compositions easily without having to be a channels guru. I remember before layers, if a client wanted to
make changes to a composition, or even change a font you were in big trouble.
There is a lot to layers and they will take some time to master. But they are not that difficult once you understand
how they work. In this tutorial I will explain the concept of layers, describe the features and walk you through a
simple tutorial. Along the way I will throw in a few cool tips to help you work faster and easier.
Part 1. What is a Layer?
A layer is simply one image stacked on top of another. Imagine I have a piece of paper and I paint it red. Then I
take a peice of clear celophaine and paint a yellow circle, and lay it over the paper. Now I take another peice of
cellophane and paint some blue type and laythat on top of the yellow circle. I now have a background (red) and 2
layers (yellow and blue.) Just like in the picture below.
A background with 2 layers.
This is how your image with would look on the screen or when printed.
Broken apart so you can see how the layers work
Each layer stacks on top of the previous one.
That is it! The concept of layers is that simple. Photoshop uses the Layers Pallete to allow you to do this with your
images. More than one layer is called a composition.
Photoshop's layers Pallete is a powerful tool that allows you do many special things to your layed compositions.
Next we will look at the Photoshop 6 layers pallete.
The Layer Window
Normal Layer: Where your image layer is stored
Layer Effects (Styles): Special effects applied to your image layer. Noted by the little f. Each effect will be listed.
Here only the drop shadow is used, multiple effects may be used at once.
Type Layer: The same as an image layer, except this layer contains type that can be edited; (Change character,
color, font or size)
Background: Always locked, cannot be moved or have layer effects applied to it. The little icon of the padlock on
the right, indicates it is locked. Can be changed into a regular layer by simply double clicking on the thumbnail.
Thumbnail: A small picture of the layers contents.
Show/Hide Icon: If the eye is showing that layer is visible. Click on the eye and the layer will still be there but
invisible until you click on the eye again.
Layer Features
Blending mode: Changes the way the layers interact with each other. Experiment with the different modes.
Layer opacity: Adjusts how transparent each layer is. 0 is completely transparent, 100 is completely opaque.
Lock all: If the box is checked the layer is totally protected from any editing.
Lock Position: You can make any changes except for moving the image.
Lock Image pixels: You cannot draw on this layer if checked.
Lock transparent: You can paint on this layer but not where it is transparent.
Delete: Will delete an entire layer. Either Drag the thumbnail to the icon or select the layer* and click on the trash
can (delete icon).
*Selected layer highlighted -Type layer is currently selected
New Layer: Click to add a new blank layer. Or drag an existing layer thumbnail to create a duplicate.
New Adjustment layer: Allows non-destructive adjustment of colors to a layer. (Can be undone anytime, even
after closing document)
Create a new set: Allows you to organize your layers into folders. This new feature was on my wish list.
Layer mask: Allows you to paint away parts of your layer without damaging your original image.
Layer styles: Special effects for your layers. Beefed up version of the old layer effects. (Allows you to do cool
things with no effort)
Neprestano spominjemo izraze layer i maska. Mnogi od vas znaju što je to i čemu služi ali ovo je tutorial za vas početnike. Objasnit ću točno što je to, čemu služi i kako se koristi u ovom edukativnom tutorialu.
1. korak Prije svega, treba znati što je maska. Ona je upravo ono što joj i ime govori. Definira koji dio/dijelove sloja/layera ćemo vidjeti. Kao da stavimo skijašku masku npr. Ona će pokriti naše lice ali će ostaviti vidljive oči i usta. Naše lice je sloj a maska je... maska. Idemo odmah na primjere. Recimo da u photoshopu imamo otvorenu sliku sa dva sloja
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2.korak "kutije" su iste veličine, tako da će se vidjeti samo zelena "kutija" pošto je ona layer2, dakle nalazi se preko layera1. Recimo da želimo vidjeti i dio crvene kutije. To postižemo sa "layer maskom". Izabrat ću zeleni sloj i add a layer mask te ću nacrtati veliki X preko njega. To daje photoshopu naredbu da pokaže što je ispod kroz oblik koji sam nacrtao
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Idemo na praktično.
3.korak idi na Create New Image i stvori dva sloja (layera). Ja koristim ove sa donje slike. Vidjet će se samo gornji layer ali ćemo dodati masku tako da se i neki dijelovi donjeg pokažu. Klikni na gornji layer i idi na Layer>Add Layer Mask>Reveal All
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4.korak Primjetit ćete da se nakon klikanja opcije reveal all vaša paleta sa layerima promijenila
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5.korak Ovo je layer maska glavom i bradom, dame i gospodo. Primjetite da je bijela a da se naizgled vaš layer nije promijenio. Layer maska se sastoji od samo dvije boje; crne i bijele. Bijela govori da vidiš layer a crna da vidiš one layere ispod. Za primjer, nacrtat ću veliki X (sa paintbrushom) preko layer maske.
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6.korak Kao što vidite, na mjestu gdje sam nacrtao X, pokazao se donji sloj. Na masku možete crtati bilo kojim alatom dok god su boje koje koristite crna i bijela. Ako želite editirati masku, morate kliknuti BAŠ na nju a ne bilo gdje na sloj
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7.korak Sada ćemo editirati masku. X sam popunio bijelom bojom tako da se opet pojavljuje samo čisti layer. Ovaj put sam obojao pozadinu oko vojnika crnom. Koristio sam manje četkice i pažljivo ga omeđio crnom. Fora je da - ako pogriješiš - uvijek možeš opet sve ispuniti bijelom pa ponovo
8.korak Negdje na početku, koristili smo opciju Reveal all. Sad gledajte primjer gdje ćemo koristiti opcijuHide All. Recimo da želite pretvoriti sliku u crno-bijelu ali da neki njeni dijelovi ostanu netaknuti. Dupliciraj layer (crtl+j) i promijeni donji sloj u crno-bijeli (grayscale). Zatim kliknite na gornji iLayer>Add Layer Mask>Hide All.
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9.korak Sad možete editirati layer masku i obojati paintbrushom u bijelo dijelove koje želite da budu vidljivi. Ovaj puta je maska crna a vi vidite donji layer umjesto onog gornjeg (sa maskom) jer je cijeli layer trenutno skriven
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10.korak Sad ću obojati layer masku na dijelovima oko vrha vojnikovog oružja i oko vizira njegove kacige. Rezultat je
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11.korak Još ću pokazati jedan primjer a u njemu leži prava mož layer maski. Koristit ću gradient toolumjesto paintbrusha. Koristit ću originalnu sliku kao gornji sloj a istu tu sliku ću koristiti i kao donji, s tim da ću na donjem napraviti radial blur (filter > blur > radial blur)
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12.korak Na gornjem sloju sam otišao na Layer>Add Layer Mask>Reveal All . Uzeo sam Gradient Tool i koristio white to black (od boja. bijela se preljeva u crnu. to vidite gore, ispod File, Edit, Image...) i upaljen Radial. (od onih 5 ikonica, radial je druga. isto gore). Započeo sam na vojnikovoj glavi i povukao crtu negdje do pola slike (van od vojnika). Vidjet ćete kako krug "vene" iz bijele u crnu na samoj maski, na mjestu gdje sam povukao gradient. Ovo dozvoljava donjem layeru da se stapa, što smo dobili sa radialom i gradient toolom, umjesto da sam ga definirao paintbrushom. Upravo to je jedno od najmoćnijih obilježja layer maski; da se slojevi spajaju na bilo koji način koji poželimo.
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13. i zasad zadnji korak Najbolji način da ovo shvatite je da uzmete neke slike pa se "igrate" s njima. Jednom kad shvatite logiku svega toga, vidjet ćete da je to primjenjivo u gotovo svakom projektu.
Photoshop layers – kako i zašto ih koristiti
Sjećam se da mi je trebalo mnogo truda da svoju kći nagovorim da počne koristiti layere u
photoshopu. Dugo vremena sve je radila na istom layeru. Kada sam je upitala zašto tako radi, rekla
je da zaboravi otvoriti novi, a i da je previše layera zbunjuje Ako i vi radite istu početničku grešku,