TAILIEUCHUNG - Advanced Maya Texturing and Lighting- P12

Advanced Maya Texturing and Lighting- P12: I should stress that I am self-taught. In 1994, I sat down at a spare seat of Alias PowerAnimator and started hacking away. After several years and various trials by fire, 3D became a livelihood, a love, and an obsession. Along the way, I was fortunate enough to work with many talented artists at Buena Vista Visual Effects and Pacific Data Images. In 2000, I switched from PowerAnimator to Maya and have since logged tens of thousands of hours with the subject of this book | 309 Figure Clockwise from top left 20 mm 35 mm 135 mm and 50 mm focal lengths in Maya with a 35 mm Academy Film Gate Camera Scale Scales the Focal Length attribute as if the entire virtual camera mechanism were resized. Objects will appear twice as far away if this attribute is set to 2 and twice as close if this attribute is set to . Selecting Frame Rates and Interlacing A proper frame rate or frames per second fps is critical for smooth animation. To set the rate choose Window Setting Preferences Preferences switch to the Settings section and choose an option from the Time attribute drop-down menu see Figure . Maya provides the most common frame rates including 24 25 and 30. 24 fps The standard frame rate of motion picture film. 25 fps The standard frame rate of PAL and SECAM video. 30 fps The standard frame rate of NTSC video. 30 fps is a simplification of the more technically accurate fps. DETERMINING CRITICAL PROJECT SETTINGS Note To accurately gauge an animation when using the Timeline s playback controls you must switch the Playback Speed attribute to Real-Time. You can find Playback Speed in the Timeline section of the Preferences window choose Window Setting Preferences Preferences . x I z PAL 25 fps NTSC 30 fps Show 48 fps PAL Field 50 fps NTSC Field 60 fps Figure A portion of the Time drop-down menu in the Preferences window 310 CHAPTER 10 PREPPING FOR SUCCESSFUL RENDERS Standard television transmission requires the use of interlaced fields. Thus in reality PAL runs at 50 interlaced fps and NTSC runs at 60 interlaced fps or more accurately interlaced fps . The interlacing process splits any given frame into interlaced upper and lower fields with one field drawn first and the other field drawn second. Whether the upper field or lower field is drawn first is dependent on the video s field dominance. This varies with video format. You can render interlaced frames in Maya by choosing PAL Field or NTSC Field from the Time .

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