| Performance | Raster Paint | Cineon/DPX Files
These options let you set various preferences for FX rendering, memory management, and Cineon file conversion.
To display: Choose from the main menu. In the explorer that appears, click the icon.
Performance
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FX Tree rendering from a File Output operator can take advantage of distributed rendering. This option specifies the maximum
number of render slave CPUs used to render FX trees. You can specify one, two, four, or eight CPUs.
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Memory Usage
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The minimum amount of RAM to allocate for storing images when the FxTree starts. You may need to set a higher value when working
with large images or complex trees, and you may need to set it lower if Softimage crashes when you open the FxTree view.
On 32-bit systems, this value should not be set higher than 128 MB.
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Specifies the maximum percentage of RAM that should be used for caching images. This value can be set to several levels between
0% and a maximum of 80%.
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Disk Usage
When caching to disk, make sure that there is enough free space in the Temp or user-specified directory.
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Activate this option to save images to a disk cache that would otherwise be lost due to insufficient cache memory during editing
of an FX tree.
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When Overflow Cache to Disk is activated, specifies the maximum size of the data stored in the cache directory which is used
to store cached data after overflow.
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When Overflow Cache to Disk is activated, specifies the amount of disk space that must remain free. The helps prevent the
disk from filling up with cached images.
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Cache Directory
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When activated, the images cached to disk are stored in the system's Temp directory.
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When Use Standard Temporary Directory is deactivated, images cached to disk are stored in the directory specified here.
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Raster Paint
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When activated, frames modified in a Paint Clip operator are saved when you change frames.
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Cineon/DPX Files
Cineon/DPX images use a logarithmic color space, so to work with them in the FX tree, you first have to convert them to linear
space. Once you've applied the desired effects, you will likely want to convert them back to logarithmic space. These options
allows you to set preferences for automatically converting log images to linear when they are read, and converting them back
to log when they are written.
Log-To-Lin Look Up Table
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The "Black Reference". This value maps the minimum log value to the linear black value of 0. Values below this will be clipped
to black.
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The "White Reference". This value maps the maximum log value to the linear white value of 255. Values above this one will
be clipped to white.
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The soft clip value helps smooth out color imbalances cause by clipping the highlights in the original log image. It defines
a range of values around the white reference over which the clipping curve is softened. This preserves details in the image's
highlights.
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Adjusts the film gamma.
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Performs a gamma correction. Entering your monitor's gamma correction value ensures that the original Cineon/DPX image's gamma
looks correct on your monitor.
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Automatically Use Table...
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When activates, Softimage will automatically use the Log-To-Lin lookup table when reading Cineon format images from disk.
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When activates, Softimage will automatically use the Log-To-Lin lookup table when writing Cineon format images to disk.
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