The Art of Poser and Photoshop- P10

The Art of Poser and Photoshop- P10:Before you dive into the first chapter, be sure to download the content and images fromwww.chromeallusion.com/downloads.html. You will see the title of the book in boldand below that, you will find the files you need. Please download the files for each chapterand place them into a main folder named Tutorials. You will be asked to referencethe images from that folder as you work through the tutorials throughout the book. Ofcourse you will need Poser Pro and Photoshop CS4 as well....
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The Art of Poser and Photoshop- P10258 The Art of Poser and Photoshop: The Official Guide Figure 5.70 View of the Granite node added to the X Scale channel 3. Connect to the Bottom channel and notice that only the darker areas in the origi- nal texture are affected. The highlights have not been touched. 4. Continue by connecting to the Octaves channel. The Octaves are the denser areas in the original texture. The base color in the Granite node (white) dominates these areas. 5. Finally, connect to the X Scale, Y Scale, and Z Scale channels and observe how the texture engine attempts to texture tonalities along each of those axes.Applying Photographic Images to IndividualChannelsJust as you can add procedural textures to individual channels, you can also add digitalimages. In this section, you’ll add a photographic image to each of the channels. 1. Open another Turbulence node. It will be titled Turbulence_2 by default. Start with the X Scale channel and attach an Image_Map node. To do this, choose New Node > 2D Textures > Image_Map. At the top you will see the Image_Source layer. Click on this layer and navigate to the tutorials folder. Open the texture.jpg file from the Chapter 5 ■ Advanced Nodal Texturing in Poser 259 Tutorials folder. Immediately you can see how the image map is applied to the Turbulence_2 texture. If you observe closely (see Figure 5.71), you can determine the axis that is being affected by observing the direction of the distortion. Poser appears to be allowing it to affect the pixels in a left-to-right fashion, which is the X axis. 2. Connect to the Y Scale and Z Scale channels and observe how the texture engine affects the tonalities along each of those axes. Start by connecting to the Y axis and notice that Poser appears to be allowing it to affect the pixels in an up-and-down pattern. See Figure 5.72. In this step the pixels that are affected are the ones facing you on the Z axis, so everything seems to have some distortion. See Figure 5.73. Figure 5.71 View of the Image_Mapnode added to the X Scale channel260 The Art of Poser and Photoshop: The Official Guide Figure 5.72 View of the Image_Map node added to the Y Scale channel Figure 5.73 View of the Image_Map node added to the Z Scale channel Chapter 5 ■ Advanced Nodal Texturing in Poser 261 Using the Nodes to Create Bump and Luminosity Effects When working with photographic imagery, you will also want to apply the image directly to the surface of your object. Oftentimes you may want to use that same image to create bump textures as well as lighting effects through the luminous channels. 1. Clear the other nodes that you were working with in the previous exercise. Apply the image map to the Diffuse_Color channel, as shown in Figure 5.74. Use tex- ture.jpg as your source image. Note that this channel is the one that you will use to apply a photographic image to the object’s surface. Figure 5.74 Apply the image map to theDiffuse_Color channel 2. Next click and hold on the Specular_Color connector and drag it to the image map. The color of the current image is used as the specular color of the box. This is why the white highlights were replaced with the actual color of the texture. See Figure 5.75. 3. Now connect the Bump channel to the image map. You can see that this process uses the textures in your image to create a bumpy surface. Poser is simply using any highlights from the image map as the areas that will rise forth and any shadow details in the image as the areas that will recede into valleys. See Figure 5.76. Do a little experimentation with the value of the bump. Change it to .03 as shown in Figure 5.77. Notice that the effect of the texture is less dominant. Use the Bump value to control the strength of the effect.262 The Art of Poser and Photoshop: The Official Guide Figure 5.75 Apply ...