The Foundry Katana 3.1v1 | 322.6 mb
The Foundry launches the newer update to its professional look development and lighting tool. This update include new Feature Enhancements and bug fixes that improve the 3.0v6 release.

Katana 3.1v1 Release Notes - Release Date 20 November 2018:

Feature Enhancements

Qt
As part of Katana 3.1, we have updated the version of Qt used by Katana from 4.8.5 to 5.6.1, as specified in the VFX Reference Platform CY2017. This means that any UI plugins that utilize Qt should be updated. These changes are detailed below:

- Any Qt widget that opted in to Katana's 'key-based-dragging' protocol must be updated as follows. Previously, Katana would emit a dynamic PyQt keyBasedDragRequested signal from a widget when the user hovered the mouse over it and pressed Ctrl+B. As of Katana 3.1, your widget must instead override the customEvent() method to handle QT4Widgets.GlobalEventFilter.KeyBasedDragEvent Qt events. A widget should accept the event, and initiate a drag using a QT4Widgets.InteractiveDrag object.
- Any Qt widget that previously set a Python attribute of drawInteractiveHighlight to False should now set a boolean QObject property of the same name instead. This property allows a widget to opt out of the standard highlight effect Katana applies to a target widget of a drag-and-drop operation.
- Any Qt widget that previously set a Python attribute of STOP_GLOBAL_SCROLLING or SKIP_GLOBAL_SCROLLING should now set a boolean QObject property of the same name instead. This property allows a widget to opt out of Katana's default 'global scrolling' behaviour, initiated by holding Alt and dragging with the middle mouse button while the cursor is over a QScrollArea-based widget.
Performance
- The performance of application startup, user interface, and idle CPU usage was improved by dispatching more Qt events in C++ instead of Python.
- The Catalog tab now uses push-based events to update the display. The number of render draw events that are buffered before an event is pushed can be controlled by the environment variable KATANA_CATALOG_RECT_UPDATE_BUFFER_SIZE. The default value is 256.
- A number of Katana's polling mechanisms have been optimized to use an event-based system as opposed to continuously polling for state changes in certain flags. This has lead to a noticeable reduction in idle CPU usage when running in UI mode.
- TP 247799 - The amount of computation triggered by calls to the Geolib Runtime Client setLocationsOpen() and setLocationsOpenRecursive() functions, where many locations are watched, was significantly reduced.
- A substantial effect of this change is a reduction in completion time of a recursive expansion triggered by one UI element, typically the Scene Graph tab, that is also applied to another, such as a Viewer tab.
- TP 253458 - The Alembic_In node type and associated Op type now use a modified Alembic library to read Ogawa-format Alembic files using memory-mapped I/O. This allows faster reads in general, and better multi-threaded performance with fewer locks.
- An environment variable named KATANA_ALEMBICIN_DISABLE_MMAP has been added that, if set to 1 or true, disables this memory-mapped I/O extension, in which case Alembic_In reverts to using file streams to read Alembic files.
- The performance of the Katana event system was improved. During a UI session, Katana now makes use of Qt's built in event loop to dispatch its application specific events. This provides a number of benefits partly resulting from the use of a performant priority queue and the ability to indicate a priority level for a given event.
- As a result of these changes, during UI sessions, collapsed event handlers will now only ever be called with a single event. If event buffering is required on the consumer side (for example, for performance reasons), then buffering should be implemented in the consumer.
Hydra Viewer
- The Viewer API has been reworked to add support for a single OpenGL context, shared between all the Viewports. The ViewportWidget class now inherits from QWidget.
- The Hydra Viewer now supports display of object annotations, which can be added via ViewerObjectSettings nodes.
- Ambient occlusion in the Hydra Viewer has been improved to better utilize the OpenGL resources.
Other Feature Enhancements
- A new advanced.mergeGroupAttributes parameter has been added to Merge nodes, which can be used to specify group attributes which should be merged from the different input scenes. This can be used to merge different types of materials, or materials for different renderers, for example.
- TP 231108 - The -var command-line option has been added to Katana's batch mode, which can be used to override the value of a global Graph State Variable in a Katana project to render, e.g. katana -batch -t 1-10 -var myVariableName=newValue /path/to/project_to_render.katana

About The Foundry Katana. Katana is a 3D application specifically designed for the needs of look development and lighting in an asset-based pipeline. Originally developed at Sony Pictures Imageworks, Katana has been their core tool for look development and lighting for all their productions since Spider-Man 3, Beowulf, and Surf's Up!. Katana provides a very general framework for efficient look development and lighting, with the goals of scalability, flexibility, and supporting an asset-based pipeline.

Katana is used in VFX, broadcast, and animation as a post-processing tool for final lighting. It uses a recipe approach to establishing lighting, making it easier for users to establish a lighting profile that can be reused in other scenes or projects.

About The Foundry. The Foundry is a leading global developer of creative software used to deliver high-end visual effects and 3D content for the design, visualization and entertainment industries. The portfolio empowers artists to create inspiring and technical images and visual experiences in media production (film, commercials, episodic television, gaming, and virtual and augmented reality), and product and industrial design.

The company was founded in 1996 and is headquartered in London, with offices in Silicon Valley, Manchester, Los Angeles, Shanghai, Dublin and Austin. In November 2015 Alex Mahon was appointed as CEO while Bill Collis became president.

Product: The Foundry Katana
Version: 3.1v1
Supported Architectures: x64
Language: english
System Requirements: PC
Supported Operating Systems: Windows 7even or newer
Size: 322.6 mb

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