Secret of Photoshop Texture article (actual "stump" one)

Source: Internet
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Wood Texture Research 2--actual combat "Stump"

Hello everyone, I am JRT, and we meet again, really happy! When I started to learn Photoshop, I thought it was just a software for working with photos. Ever since I started researching textures, I've found that Photoshop's original ability is just as powerful. In fact, processing photos, just a part of Photoshop, the official called "Digital Darkroom", another part of Photoshop is the creation of raster graphics. Today we have an example to further explore the study of wood texture, but also to let you come with me to understand the Photoshop in the original aspect of the powerful features. As for what to do, I think for a long time, and decided to make a stump, the background is a century old tree, has just been cut down after leaving the stump. All right, we're officially starting. First of all to do the section of the stump, that is, we see the ring.
1. At first we can use the last we do the wood texture to be processed to complete the ring effect, so first of all, please follow the previous course taught to make a 512x512pixel wood texture. 2. Select Menu Filters->disort->polar coordinates, select Pectangularto Polar Item. 3. The resulting doughnut-like texture has a seam in the middle, let's remove the seams: Copy the background layer, rotate the new layer 180 degrees, select the seam and the surrounding part with the rectangular selection box, choose Select->feather, the value is 16, if the selection edge is still too hard, can be a few times, I used two times. 4. Select Layer->add Layer mask->hide selection. What do you think? The seams are gone, aren't they? Merge the visible layer, the results are shown in Figure I.

Figure I

5. Next we have to adjust the image brightness so that it and the actual rings closer. Using the shortcut key ctrl+l, open the level adjuster, using the parameters: Input levels=15:1.00:996. From the ordinate and the horizontal axis pulls two auxiliary line to the picture center position, determines the picture central point. Select the circle selector, hold down the Alt+shift key to the picture center point as the starting point to select a concentric circle area, press the shortcut key ctrl+j the selection to the new layer, the new layer named "Ring", delete the original two layers, get the results see figure two.

Figure II

7. Hold down the CTRL key and click the "ring" layer in the layer window with the mouse to invoke the transparent selection of this layer. Select Select->modify->border and select Value 15. 8. Use shortcut keys again ctrl+j the image in the selection to the new layer, the new layer named "Bark." 9. Select "Bark" layer, press shortcut key Ctrl+l, enter level adjuster, select parameter input levels=207:1.00:255, this step makes edge part of bark effect. 10. Tree rings due to the long period of time, the center of the new long out of the general color of the edge of the section is lighter, some light. Select the "Ring" layer, in the upper layer window selected preserve Transparency option, press the shortcut key Q into the temporary mask status, select the Ring Gradient tool to determine the foreground color is black, the color is white, the gradient mode for FG to BG, from the center to the ring edge pull a gradient. Press Q to exit the temporary mask status to see the new selection. Press Ctrl+shift+i to reverse the selection.

11. Press shortcut key Ctrl+l enter level adjuster, select parameter input level=0:1.74:255. The final results are shown in Figure three. Save the picture, and you'll have to come in handy later. Call..... Say a lot in a breath, let's call it a day! This time use of a lot of new skills, such as polar coordinates (polar coordinates) filter, is a very useful filter, there is a step 3 of the seam method is a new method, I hope we have more experience and research. Next time we start talking about the trunk section, this is the first example of our challenge, and compared to simple texture simulation, the complexity of the layer is completely different, I hope you can understand and learn what I said. Well, JRT is tired and going to have a rest.



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