issue60:tuto_gimp
Différences
Ci-dessous, les différences entre deux révisions de la page.
| Prochaine révision | Révision précédente | ||
| issue60:tuto_gimp [2012/05/03 05:58] – créée fredphil91 | issue60:tuto_gimp [2012/05/11 13:24] (Version actuelle) – albinoz | ||
|---|---|---|---|
| Ligne 1: | Ligne 1: | ||
| - | In the first of this new GIMP series, I’m going to try and show you some intermediate techniques. In other words, things that people may think are possible only with Photoshop. If you’d like to read more about the absolute basics of GIMP, then I refer you back to FCM#12-19. While I used an older version of GIMP in those issues, the layout of GIMP has changed little in the passing years. | + | **In the first of this new GIMP series, I’m going to try and show you some intermediate techniques. In other words, things that people may think are possible only with Photoshop. If you’d like to read more about the absolute basics of GIMP, then I refer you back to FCM#12-19. While I used an older version of GIMP in those issues, the layout of GIMP has changed little in the passing years. |
| For ideas, I’m using Photoshop tutorials that are freely available on the web, and, while not copying them step for step, applying the underlying principles of them to GIMP. | For ideas, I’m using Photoshop tutorials that are freely available on the web, and, while not copying them step for step, applying the underlying principles of them to GIMP. | ||
| Ligne 5: | Ligne 5: | ||
| I should also state, for the record, that I’m using GIMP 2.6. As I write this, a 2.7 version is available, but, it is not entirely compatible with the *buntu family, and trying to install it can give conflicts. | I should also state, for the record, that I’m using GIMP 2.6. As I write this, a 2.7 version is available, but, it is not entirely compatible with the *buntu family, and trying to install it can give conflicts. | ||
| - | What we’ll be making is shown left. | + | What we’ll be making is shown left.** |
| - | Sources: | + | Pour le premier numéro de cette nouvelle série sur GIMP, je vais tester et vous montrer des techniques intermédiaires. En d' |
| - | Sky - http://www.2textured.com/index.php/ | + | |
| - | YouTube Video showing Pt1 being made: http:// | + | Pour les idées, j' |
| + | |||
| + | Ce que nous allons faire est montré à gauche. | ||
| + | |||
| + | **Sources: | ||
| + | Sky - http:// | ||
| + | |||
| + | YouTube Video showing Pt1 being made: http:// | ||
| The Sky Gradient | The Sky Gradient | ||
| - | First thing we need to do is create a new image (File > New), and make it A4 in size, portrait in orientation, | + | First thing we need to do is create a new image (File > New), and make it A4 in size, portrait in orientation, |
| + | |||
| + | Sources : | ||
| + | Ciel - http:// | ||
| + | Vidéo YouTube montrant la création de Pt1: http:// | ||
| + | |||
| + | Le dégradé du ciel | ||
| + | |||
| + | La première chose que nous devons faire est de créer une nouvelle image (Fichier > Nouveau), de lui appliquer la taille A4 et l' | ||
| - | Select the ‘Blend tool’ icon (shown left), and, where it says ‘Shape: | + | **Select the ‘Blend tool’ icon (shown left), and, where it says ‘Shape: |
| Next, left click (and hold) in the middle of the blank image and move up to the top middle of the image. Release the mouse button and you’ll have a radial fill covering the entire canvas. | Next, left click (and hold) in the middle of the blank image and move up to the top middle of the image. Release the mouse button and you’ll have a radial fill covering the entire canvas. | ||
| Ligne 24: | Ligne 38: | ||
| Click File> | Click File> | ||
| - | With the sky now in our main image, you can close the opened sky image. | + | With the sky now in our main image, you can close the opened sky image.** |
| - | The sky image is quite high resolution, larger than we require, so we need to resize it. Click the ‘Resize’ tool (shown left), and click the sky. In the resize window that pops up, you need to make sure that the little chain link icon is linked. If the icon looks like a broken chain, then your sky image will resize disproportionately and squish. Make the width of the sky about 300 wide, and click OK. This gives us some room to play with. | + | Sélectionnez l' |
| + | |||
| + | Ensuite, cliquez (et maintenez) le bouton gauche de la souris vers le centre de l' | ||
| + | |||
| + | Non, pas les calques ! | ||
| + | |||
| + | Cliquez sur Fichier > Ouvrir, et choisissez l' | ||
| + | |||
| + | **The sky image is quite high resolution, larger than we require, so we need to resize it. Click the ‘Resize’ tool (shown left), and click the sky. In the resize window that pops up, you need to make sure that the little chain link icon is linked. If the icon looks like a broken chain, then your sky image will resize disproportionately and squish. Make the width of the sky about 300 wide, and click OK. This gives us some room to play with. | ||
| Click the ‘Move’ icon (shown left). Now, left click and drag the sky icon to where you think it looks best. | Click the ‘Move’ icon (shown left). Now, left click and drag the sky icon to where you think it looks best. | ||
| Ligne 32: | Ligne 54: | ||
| TIP: The gradient is one layer and the sky is another. If we add several more layers, it’ll get quite confusing. To make things easier you can double click on a layer name and rename it. | TIP: The gradient is one layer and the sky is another. If we add several more layers, it’ll get quite confusing. To make things easier you can double click on a layer name and rename it. | ||
| - | Now for some layer magic. With the sky layer still selected, click the drop down menu above the layers and choose ‘Value’. | + | Now for some layer magic. With the sky layer still selected, click the drop down menu above the layers and choose ‘Value’.** |
| - | Color Curve | + | L' |
| + | |||
| + | Cliquez sur l' | ||
| + | |||
| + | ASTUCE: le dégradé est un calque, le ciel en est un autre. Si vous ajoutez plusieurs calques, cela peut devenir un peu confus. Pour vous simplifier la vie, double-cliquez sur le nom du calque (dans la boîte de dialogue « Calques ») et renommez-le. | ||
| + | |||
| + | Maintenant, un peu de magie avec les calques. Le calque « ciel » étant sélectionné, | ||
| + | |||
| + | **Color Curve | ||
| You’ll now have a greeny sky, but it doesn’t look very dramatic does it? With the sky layer still selected, click Colors > Curves from the menu. We’re going to create what’s known as an S-curve. The S-curve is a great way of quickly color correcting your photos too. Click two boxes across and two down in the grid, and drag your mouse up and to the left slightly, and two boxes in and up from the bottom left of the grid, and click and drag down to the right. | You’ll now have a greeny sky, but it doesn’t look very dramatic does it? With the sky layer still selected, click Colors > Curves from the menu. We’re going to create what’s known as an S-curve. The S-curve is a great way of quickly color correcting your photos too. Click two boxes across and two down in the grid, and drag your mouse up and to the left slightly, and two boxes in and up from the bottom left of the grid, and click and drag down to the right. | ||
| Ligne 40: | Ligne 70: | ||
| Which will give you an S-curve (shown above) which you should play around with until you get a nice dramatic sky with good darks, but not too bright lights. | Which will give you an S-curve (shown above) which you should play around with until you get a nice dramatic sky with good darks, but not too bright lights. | ||
| - | Let’s finish off this sky and that’ll do us for this first part of the tutorial. | + | Let’s finish off this sky and that’ll do us for this first part of the tutorial.** |
| - | Layer Mask | + | Courbe des couleurs |
| + | |||
| + | Vous avez maintenant un ciel vert, mais il n'est pas encore assez « dramatique », n' | ||
| + | Vous devriez avoir une courbe en S (cf. au-dessus) avec laquelle vous pouvez jouer afin d' | ||
| + | |||
| + | Avec ce ciel s' | ||
| + | |||
| + | **Layer Mask | ||
| Right click on the sky layer, and from the menu, choose ‘Add Layer Mask’ (shown below). | Right click on the sky layer, and from the menu, choose ‘Add Layer Mask’ (shown below). | ||
| Ligne 50: | Ligne 87: | ||
| That box is a thumbnail of the layer mask. The idea is that if you select that layer thumbnail, and draw in black, you’ll erase parts of the sky image. Draw over the erased area with white and the sky will reappear. This means you can show/hide parts of the sky - using the mask - without destroying the original sky image. We’ll use the mask to fade the sky into the background. | That box is a thumbnail of the layer mask. The idea is that if you select that layer thumbnail, and draw in black, you’ll erase parts of the sky image. Draw over the erased area with white and the sky will reappear. This means you can show/hide parts of the sky - using the mask - without destroying the original sky image. We’ll use the mask to fade the sky into the background. | ||
| - | Make sure the mask thumbnail is selected, it should have a white outline, and click the “Rectangle Select’ icon (shown below left). Left click and draw a box around the bottom third of the sky. | + | Make sure the mask thumbnail is selected, it should have a white outline, and click the “Rectangle Select’ icon (shown below left). Left click and draw a box around the bottom third of the sky.** |
| - | Now click the ‘Blend Tool’ icon (that we used at the start of this tutorial), but make sure the ‘Shape: | + | Les masques de calque |
| + | |||
| + | Cliquez droit sur le calque du ciel et, depuis le menu, choisissez « Ajouter un masque de calque... » (cf. en dessous). | ||
| + | Dans la nouvelle fenêtre, choisissez « Blanc (opacité complète) » et cliquez sur « Ajouter ». Une boîte est apparue à côté de la vignette du ciel dans la liste des calques. | ||
| + | |||
| + | Cette boîte est une vignette du masque de calque. L' | ||
| + | |||
| + | Assurez-vous que la vignette du masque soit sélectionnée (elle devrait être entourée d'une bordure blanche) et cliquez sur l' | ||
| + | |||
| + | **Now click the ‘Blend Tool’ icon (that we used at the start of this tutorial), but make sure the ‘Shape: | ||
| Your sky will now magically fade into the background. And since it’s a layer mask, the original sky is untouched. You can right click on the layer mask and delete it and the sky will return to its original state. | Your sky will now magically fade into the background. And since it’s a layer mask, the original sky is untouched. You can right click on the layer mask and delete it and the sky will return to its original state. | ||
| - | Next month we’ll add a piece of landscape below the sky, and maybe, just maybe, start growing that beanstalk. Class dismissed! | + | Next month we’ll add a piece of landscape below the sky, and maybe, just maybe, start growing that beanstalk. Class dismissed!** |
| + | |||
| + | Maintenant, cliquez sur l' | ||
| + | |||
| + | Votre ciel va se fondre maintenant dans l' | ||
| + | Le mois prochain, nous ajouterons un peu de paysage en dessous du ciel, et peut-être, je dis bien peut-être, nous commencerons la création du haricot. L' | ||
issue60/tuto_gimp.1336017523.txt.gz · Dernière modification : 2012/05/03 05:58 de fredphil91
