Adobe 25510629 User Guide - Page 99

NOTE Returning all grid settings to the defaults Clicking the Reset button returns all of the Input Offset values to the default settings. This action does not affect check boxes in this control group, such as Scale To Fit and Portrait. Panning and zooming Ultra lets you program complex virtual camera movements into a session to produce pans and zooms and also tilts, dolly shots, and boom maneuvers. If you've ever tried to capture such shots on film or tape, you know how tricky they can be. A take can be ruined by the slightest jiggle, and it sometimes seems impossible to maintain focus and framing through a camera move of any complexity. Ultra delivers the desired results with no such glitches and with precision down to the frame and the pixel. You can program up to 64 pan and zoom points-though you may be better off editing simple scenes together with an NLE than designing a scene that's this complex. Each virtual camera move follows a straight line from one pan and zoom point to the next. If you want a movement to follow an arc, set multiple points that collectively form a curved path. The speed of a move is a function of the distance between the two points divided by the time between them. To make the moves smoother and more natural, the rate accelerates at the beginning and decelerates at the end. Adobe uses a Hermite spline to calculate the rate curve. Ultra's support for high-resolution graphics and HD video and its pan and zoom capacity lets you create some truly stunning results. Because Ultra maintains the resolution of still images up to 4096x4096 rather than automatically converting all graphics larger than 720x480 to that resolution, all of those pixels are still there. (The maximum resolution for still graphics may be less, depending on the limitations of the graphics card.) When you zoom in and then zoom in further on a high-resolution image, the image remains crisp and unmarred by the blockiness or fuzziness that comes from enlarging low-resolution graphics. When making spatial adjustments, you should start on the Scene tab if the virtual set permits changes there, and then proceed to the Input tab if necessary to finish with the Pan & Zoom settings. This is because the position of all of the layers and their sources must be finalized before programming the pan and zoom points. Grid control The grid control on the Pan & Zoom tab sets the scale and position of each pan and zoom point. The following explains what the grid control displays and how it works. Positioning layers and performing virtual camera moves 99 TIP