Tài iệu Photoshop cs5 by Dayley part 108 pps

Chapter 24: Using Photoshop Tools to Change the Appearance of a 3D Layer 777 FIGURE 24.22 The Layers panel shows a neat array of effects. Giving the moon away Now let me show you another example that uses different techniques. In this exercise, you create cross sections and place more than one instance of an object in a file. You also place a second 3D object in the same file. You can make a present of the moon by following the steps in the following sections. Create a gift box Follow these steps to create the first part of the package perfectly wrapped for gift-giving: On the Web Site Find the files you need to do this exercise on the Web site. They are saved as Figure 24-23 and Figure 24-25. n 1. Open Figure 24-23 from the Web site. This is a PSD file of a 3D box with a lid, as shown in Figure 24.23. 2. Open the 3D {Scene} panel. 3. Change the following settings: Check Cross Section, click Flip Cross Section, uncheck Intersection, set the offset to +12, and click Z-axis. You should be left with the lid of the box. 4. Rename the layer Lid by right-clicking the layer and selecting Layer Properties. 5. Select File ➪ Place, browse to Figure 24.23, and click Place. 6. Click the check mark to accept Placement. 7. Double-click the thumbnail in the Figure 24-23 layer. When you are reminded to save, click OK. 34_584743-ch24.indd 77734_584743-ch24.indd 777 5/3/10 10:45 AM5/3/10 10:45 AM Part VII: Working with 3D Images 778 FIGURE 24.23 A box with a lid 8. Open the 3D {Scene} panel. 9. Change the following settings: Check Cross Section, uncheck Intersections, click Z-axis, and set the offset to 11. You should be left with the bottom of the box, minus the lid. 10. Use the 3D Manipulation tools to place the bottom of the box so you can see into it. 11. Save the changes, and exit the File. 12. Rename the Figure 24-23 layer Box by right-clicking the layer and selecting Layer Properties. 13. Use the 3D Manipulation tools to tilt the lid so it looks like it is being opened, as you see in Figure 24.24. 14. Double-click the lid texture in the Layers panel of the Lid layer to open the texture. 15. Select File ➪ Place, browse to Figure 24-25 (downloaded from the Web site), and click OK. This file is a pattern created from an image of a nebula, as seen in Figure 24.25. 16. Stretch the pattern to fill the texture of the box. 17. Click the check mark in the Options bar to accept the placement of the pattern. 18. Save the changes to the texture, and close the texture file. The lid of the box should now have a new texture. 19. Double-click the thumbnail in the Box layer. When you are reminded to save, click OK. 20. Double-click the box texture of the Box layer in the Layers panel to open the texture. 34_584743-ch24.indd 77834_584743-ch24.indd 778 5/3/10 10:45 AM5/3/10 10:45 AM Chapter 24: Using Photoshop Tools to Change the Appearance of a 3D Layer 779 FIGURE 24.24 You can open the box by creating cross sections of both halves. FIGURE 24.25 This image was created using the Pattern Maker, a plug-in filter available from Adobe. 34_584743-ch24.indd 77934_584743-ch24.indd 779 5/3/10 10:45 AM5/3/10 10:45 AM Part VII: Working with 3D Images 780 21. Repeat Steps 16-20 to add the texture to the main portion of the box. 22. Save this file, and close it. You used the Cross Section tool to create and place the same 3D object in a file twice. You added texture to both portions of that object. Your final result should be similar to Figure 24.26. Now you are ready to create the moon. Creating the moon To create the moon, you create a sphere in Photoshop and map an image of the moon over it. Follow these steps: On the Web Site Find the texture of the moon saved as Figure 24-27. n FIGURE 24.26 The box is complete. 1. Browse to Figure 24-27, and open it. 2. Double-click the Figure 24-27 layer, and rename the layer Moon. This converts the background layer to a regular layer and gives it a descriptive name. 34_584743-ch24.indd 78034_584743-ch24.indd 780 5/3/10 10:45 AM5/3/10 10:45 AM Chapter 24: Using Photoshop Tools to Change the Appearance of a 3D Layer 781 3. Use the 3D Shape Preset in the 3D panel to create a sphere from the layer. You see a representation of the moon, as shown in Figure 24.27. 4. Open the 3D {Lights} panel. 5. From the Light Preset drop-down menu, select Blue Lights. 6. Click the Layer Styles icon (fx) in the Layers panel, and choose Inner Glow. 7. Adjust the settings to give the moon a nice glow. You can see my settings in Figure 24.28. 8. In the Layer Styles dialog box, select Outer Glow. 9. Adjust the settings to give the moon a nice outer glow as well. 10. Click OK to exit the Layer Styles dialog box. 11. Save your file. FIGURE 24.27 Creating a sphere from the texture map of the moon Creating a present of the moon Now that you’ve created two 3D object files, let’s add them to an image file to make a complete composite. Follow these steps to create a composite that gives the moon away as a gift: On the Web Site Find the image used in this composite saved as Figure 24-29. n 34_584743-ch24.indd 78134_584743-ch24.indd 781 5/3/10 10:45 AM5/3/10 10:45 AM Part VII: Working with 3D Images 782 FIGURE 24.28 The moon isn’t the moon without a glow. Use the layer styles to create one. 1. Open the file shown in Figure 24-29. 2. Choose File ➪ Place, browse to the 3D file of the box you created earlier, and click OK. 3. Position and size the box in the file however you’d like, and click the check mark to accept placement. FIGURE 24.29 The box needs a mask to make it work inside this photo. 34_584743-ch24.indd 78234_584743-ch24.indd 782 5/3/10 10:45 AM5/3/10 10:45 AM Chapter 24: Using Photoshop Tools to Change the Appearance of a 3D Layer 783 4. Note the areas that need to be masked, and then hide the box by clicking the eye icon. 5. Using the Selection tool of your choice, select the areas that need to be masked, as shown in Figure 24.30. Tip I created a jagged selection along the edge of the box as well as a selection around the face to take away the sharp edge that should have been sunk slightly into the carpet. FIGURE 24.30 Creating a selection of the areas that need to be masked 6. Choose Select ➪ Inverse. Note You can, of course, select the areas that need to be shown rather than the areas to be masked. Then there is no need to Inverse the selection. n 7. Click Refine Edge in the Options bar. 8. Adjust the settings to refine the edge of your selection. 9. Choose Output to Layer Mask and click OK to close the Refine Edge dialog box. 10. Drag the mask from the Image layer to the Box layer. 34_584743-ch24.indd 78334_584743-ch24.indd 783 5/3/10 10:45 AM5/3/10 10:45 AM Part VII: Working with 3D Images 784 11. Click the eye icon to restore the Box layer to view. Your box should be masked into the photo. 12. Choose File ➪ Place, browse to the file of the moon, and click OK. 13. Size the moon to fit in the box, and click the check mark to accept placement. 14. Drag the Moon layer to the top of the Layers panel, placing it on top of the box. 15. Set the moon inside the box. 16. With the Moon layer highlighted, click the Rectangular Marquee Selection tool and create a selection that includes everything in the moon layer that is above the box, as shown in Figure 24.31. FIGURE 24.31 Create a selection to mask the moon into the box. 17. Click the Mask icon in the Layers panel to create a mask from the selection. The moon is placed into the box. Your finished product should look like Figure 24.32. You can see that even the most rudimentary 3D objects can become very interesting by using Photoshop tools to enhance them. Just imagine what you can do with more elaborate 3D models. 34_584743-ch24.indd 78434_584743-ch24.indd 784 5/3/10 10:45 AM5/3/10 10:45 AM Chapter 24: Using Photoshop Tools to Change the Appearance of a 3D Layer 785 FIGURE 24.32 A realistic composite created with an image, 3D objects, and cool Photoshop tools On the Web Site If you would like to see the final PSD file used to create Figure 24.32, you can find it on the Web saved as Figure 24-32. n Summary In this chapter, you learned some of the advanced techniques for working with 3D objects, how to use the Photoshop tools to change them, and how to add them to composite images successfully. You learned how to do the following: l Use the 3D paint tools to paint textures directly onto a 3D object l Use adjustment layers, layer styles, and filters on a 3D object l Create composites using images and 3D objects 34_584743-ch24.indd 78534_584743-ch24.indd 785 5/3/10 10:45 AM5/3/10 10:45 AM . file. You can make a present of the moon by following the steps in the following sections. Create a gift box Follow these steps to create the first part of the package perfectly wrapped for. 5/3/10 10:45 AM5/3/10 10:45 AM Chapter 24: Using Photoshop Tools to Change the Appearance of a 3D Layer 779 FIGURE 24.24 You can open the box by creating cross sections of both halves. FIGURE. AM5/3/10 10:45 AM Chapter 24: Using Photoshop Tools to Change the Appearance of a 3D Layer 783 4. Note the areas that need to be masked, and then hide the box by clicking the eye icon. 5. Using