Advanced Maya Texturing and Lighting- P3

Advanced Maya Texturing and Lighting- P3: I should stress that I am self-taught. In 1994, I sat down at a spare seat of AliasPowerAnimator 5.1 and started hacking away. After several years and various trials byfire, 3D became a livelihood, a love, and an obsession. Along the way, I was fortunateenough to work with many talented artists at Buena Vista Visual Effects and PacificData Images. In 2000, I switched from PowerAnimator to Maya and have since loggedtens of thousands of hours with the subject of this book....
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Advanced Maya Texturing and Lighting- P3in addition, you can animate the Color attribute by left-clicking the color swatch,choosing a new color from the Color Chooser window, right-clicking the color swatchor the word Color in the Attribute editor tab, and choosing Set Key from the shortcutmenu. to edit the resulting animation curves, select the light and open the grapheditor (choose Window > Animation editors > graph editor).Intensity Controls the brightness of the light. you can apply a texture to this attributeto vary the intensity across the throw of the light. the texture serves as a multiplier.if intensity is set to 2 and the texture is 50 percent gray, the intensity of the light willonly be 1 when it strikes a surface.Illuminates By Default Serves as an on/off switch for the light.Emit Diffuse and Emit Specular Determines whether the light will affect the diffuse andspecular calculations of a material during a render. each attribute can be checked offindependently. if only emit Specular is checked, the specular highlights will render bythemselves; however, the alpha channel will include the entire surface. Maya lights offer manipulator handles to make the positioning of the light iconseasier. you can activate a manipulator by selecting the light and choosing Display > 39rendering > Camera/light Manipulator > manipulator name. (to hide the manipula- ■ M AyA l i g h t t y p e Stor, choose it again it from the menu.) the following manipulator handles are avail-able for all six lights:Cycling Index Displays an upside-down Q-shaped icon that, when clicked, cyclesthrough all the other available manipulators (see Figure 2.2). this is perhaps the mostefficient way to use the light manipulators.Figure 2.2 A spot light’s Cycling Index manipulator Center Of Interest Displays a Center of interest manipulator and an origin manipula- tor (see Figure 2.3). When the Center of interest is translated, the light rotates auto- matically to follow. you can also translate the origin manipulator and thus move the body of the light. Activated Pivot manipulator Center Of Interest manipulator Origin manipulator40A p p ly i n g t h e C o r r e C t M AyA l i g h t t y p e ■ Figure 2.3 A directional light’s Center Of Interest and Pivot manipulators. The Pivot manipulator handle is activated so that the Rotate tool operates around the new pivot point. Pivot Displays a handle that sets the light’s pivot point. you can drag the handle’s small circle across the light’s Center of interest line, which is automatically displayed with the pivot manipulator (see Figure 2.3). you can set the pivot in front of or behind the light. to rotate the light with the new pivot point, click the small circle so that its center becomes solid yellow. to return the rotation to the light’s origin, click2: the small circle a second time. if the pivot manipulator is hidden while it is active (thatchapter is, solid yellow at the center), the rotate tool will continue to operate around the new pivot point. By default, the light of ambient, directional, point, and spot lights never decays. that is, its intensity appears the same whether an object struck by the light is one world ...