![]() ![]() Since the last public VOLT release two years ago, we have added various features and made improvements across the entire product. Other fixes in VOLT compiler and user interface. Various fixesįixed project corruption when editing lookups with EXCEPT context.įixed VOLT crash involving caret attachment lookups in some situations.įixed compilation error of projects using very long anchor names. User interfaceĮxtended proofing tool to support fonts with more than 100 lookups.įixed form layout problems when content is obstructed by thick window borders.įixed positioning lookup window so position inside grids is preserved during window resize.Īdded menu item for importing project ignoring glyph definitions. User can specify format explicitly by adding _PPF1 or _PPF2 at the end of lookup name. In addition to automatic optimizations, VOLT added ability to manually control format of pair positioning lookups. This syntax is intentional, to prevent a user from accidentally creating overlapping mark classes. Using mark glyph sets is almost the same as mark attachment classes, except the user is required to put '*' in front of mark group name in lookup editing window. VOLT now implements mark filter glyph sets introduced in OpenType specification 1.6. This was one of the most serious compiler limitations without any workaround for font developers to overcome. The compiler is now able to compile GPOS lookups with a large number of defined attachment anchors. In some cases, savings allowed 4x reduction in compiled table size. Savings in size are significant especially with fonts containing a large number of complex contextual lookups. New optimizations towards reducing the size of generated layout tables, including contextual and pair positioning lookups. Multiple bug fixes across VOLT including the compiler, project import and export, and across the UI.Speed improvements for project compilation, loading, and saving.Support for mark filtering sets in compiler and user interface. ![]() Compiler optimizations to support fonts containing extensive anchor or cursive attachment lookups.Compiler optimizations enabling significant savings in compiled table size.Here is quick list of changes, followed by a detailed description of each: Since the last public Visual OpenType Layout Tool (VOLT) release, we have added various features and made improvements across the product.
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