Apple Shake 4 - Manual (Page 66)

66 Chapter 1 An Overview of the Shake User Interface
More About Using VLUTs
The VLUTs and the Viewer scripts are similar in that they apply an arbitrary set of
functions that modify the image. A typical example is a color lookup table to
compensate for the display properties of your computer’s monitor.
The key difference is that VLUTs allow you to scrub pixel values from the unmodified
image (this feature can be disabled) whereas you always scrub the modified pixel
values when using Viewer scripts. For example, you may want to work on Cineon plates
in logarithmic space without converting the plates to linear space. However, you want a
rough idea of what the images look like in linear color space. To do this, apply a VLUT
to convert the images to linear space. The results when scrubbing colors in the Viewer
are still derived from the original, unmodified input logarithmic plates, which ensures
accurate processing for your output images.
VLUTs are typically used during color correction, and Viewer scripts are typically used
for unusual operations—for example, when creating an image for stereoscopic viewing.
Both methods let you use any series of pre-made functions.
Shake includes two VLUTs, the Truelight VLUT, and VLUT 2, which can be customized
any way you need. You can also create as many additional VLUTs as you need, for
different situations. You can only turn on one VLUT and one Viewer script at the same
time, but both can be activated simultaneously. To apply multiple color corrections,
build your VLUTs and scripts to have multiple controls.
Viewer Script–Frames/Timecode: Displays frames or timecode in the active Viewer.
To show and modify the frames/timecode display:
• Right-click the Viewer Script button and select timecode, or click and hold the
Viewer Script button and select the Timecode button. By default, timecode is
displayed in the Viewer.
• Right-click the Viewer Script button and select Load Viewer Script into Parameters2
tab. The timecode parameters are loaded into the tab.
• Click the mode pop-up menu to choose Frames, Padded Frames, Timecode, or
Timecode Dropped Frame.
• Use the Time Offset subtree to offset by hours, minutes, seconds, or frames.
• Color: Click the color control to change the color of the text display.
• BgColor: Click the color control to change the color of the timecode display
background box.
• BgOpacity: Controls the opacity of the timecode display background box.
• size: Controls the size of the frames/timecode display.
• xPos: Controls the X position of the frames/timecode display. You can also use the
onscreen controls to reposition the display.
• yPos: Controls the Y position of the frames/timecode display. You can also use the
onscreen controls to reposition the display.
Button Description