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Presentation of Natron: a cross-platform, open-source compositing software.
Citation preview
Alexandre Gauthier-Foichat
LGM 2014
Leipzig, April 4th
Alexandre Gauthier-Foichat 1/15
Table of contents
1 Introduction1 The project2 Why we do it3 License
2 Architecture1 Feature for v12 Performances3 Demand driven4 OpenFX support5 OpenFX current state
3 Conclusion
Alexandre Gauthier-Foichat 2/15
The project
• Hosted in a research team at INRIA• Open-source, cross-platform nodal compositing software• Video editing and image processing• Funded since October 2013 as a result of an open-source
project contest
Alexandre Gauthier-Foichat 3/15
Compositing in short
Image before matting Road Signs
Final image
Alexandre Gauthier-Foichat 4/15
Why we do it
• Support OpenFX: standard to design visual effectsplug-ins.
• No open-source graphical software supporting OpenFX• But used by many proprietary applications: Nuke,Scratch,
Da Vinci resolve...• Natron first targets education and research domains
Alexandre Gauthier-Foichat 5/15
Why we do it
• Support OpenFX: standard to design visual effectsplug-ins.
• No open-source graphical software supporting OpenFX
• But used by many proprietary applications: Nuke,Scratch,Da Vinci resolve...
• Natron first targets education and research domains
Alexandre Gauthier-Foichat 5/15
Why we do it
• Support OpenFX: standard to design visual effectsplug-ins.
• No open-source graphical software supporting OpenFX• But used by many proprietary applications: Nuke,Scratch,
Da Vinci resolve...
• Natron first targets education and research domains
Alexandre Gauthier-Foichat 5/15
Why we do it
• Support OpenFX: standard to design visual effectsplug-ins.
• No open-source graphical software supporting OpenFX• But used by many proprietary applications: Nuke,Scratch,
Da Vinci resolve...• Natron first targets education and research domains
Alexandre Gauthier-Foichat 5/15
License
• Most OpenFX plug-ins are commercial or released underBSD-style license.
• GPL programs cannot load non GPL plug-ins• This is probably why we don’t see many open-source
softwares around OpenFX• Natron is under Mozilla Public License (GPL compatible)
Alexandre Gauthier-Foichat 6/15
License
• Most OpenFX plug-ins are commercial or released underBSD-style license.
• GPL programs cannot load non GPL plug-ins
• This is probably why we don’t see many open-sourcesoftwares around OpenFX
• Natron is under Mozilla Public License (GPL compatible)
Alexandre Gauthier-Foichat 6/15
License
• Most OpenFX plug-ins are commercial or released underBSD-style license.
• GPL programs cannot load non GPL plug-ins• This is probably why we don’t see many open-source
softwares around OpenFX
• Natron is under Mozilla Public License (GPL compatible)
Alexandre Gauthier-Foichat 6/15
License
• Most OpenFX plug-ins are commercial or released underBSD-style license.
• GPL programs cannot load non GPL plug-ins• This is probably why we don’t see many open-source
softwares around OpenFX• Natron is under Mozilla Public License (GPL compatible)
Alexandre Gauthier-Foichat 6/15
Table of contents
1 Introduction1 The project2 Why we do it3 License
2 Architecture1 Feature for v12 Performances3 Demand driven4 OpenFX support5 OpenFX current state
3 Conclusion
Alexandre Gauthier-Foichat 7/15
Features for v1
• Implementation of a performant rendering engine
• Animation support
• Support for OpenFX v1.3: Over 500 plug-ins available
Alexandre Gauthier-Foichat 8/15
Features for v1
• Implementation of a performant rendering engine• Animation support
• Support for OpenFX v1.3: Over 500 plug-ins available
Alexandre Gauthier-Foichat 8/15
Features for v1
• Implementation of a performant rendering engine• Animation support
• Support for OpenFX v1.3: Over 500 plug-ins available
Alexandre Gauthier-Foichat 8/15
Based on many open-source libraries
• Qt: Graphical user interface and core library• Boost: Serialization of the project• OpenImageIO: Image reading/writing• OpenColorIO: Color management
Alexandre Gauthier-Foichat 9/15
Performances
• Multi-threaded:
−→ A main-thread handling user events and OpenGLrendering−→ N render threads gathered in a pool
• Thread pool controlled by Natron• Asynchronous tasks asked by the plug-ins
Alexandre Gauthier-Foichat 10/15
Performances
• Multi-threaded:−→ A main-thread handling user events and OpenGLrendering
−→ N render threads gathered in a pool• Thread pool controlled by Natron• Asynchronous tasks asked by the plug-ins
Alexandre Gauthier-Foichat 10/15
Performances
• Multi-threaded:−→ A main-thread handling user events and OpenGLrendering−→ N render threads gathered in a pool
• Thread pool controlled by Natron• Asynchronous tasks asked by the plug-ins
Alexandre Gauthier-Foichat 10/15
Demand driven
Alexandre Gauthier-Foichat 11/15
OpenFX support
• Very stable API for writing visual effects.
• Efficient: about 500 lines of code for a plug-in• Plug-ins can be GPU accelerated using external libraries
like OpenCL or CUDA
Alexandre Gauthier-Foichat 12/15
OpenFX support
• Very stable API for writing visual effects.• Efficient: about 500 lines of code for a plug-in
• Plug-ins can be GPU accelerated using external librarieslike OpenCL or CUDA
Alexandre Gauthier-Foichat 12/15
OpenFX support
• Very stable API for writing visual effects.• Efficient: about 500 lines of code for a plug-in• Plug-ins can be GPU accelerated using external libraries
like OpenCL or CUDA
Alexandre Gauthier-Foichat 12/15
OpenFX current state
• Many plug-ins, but most of them are proprietary.
• About 80 are open-source: TuttleOFX
• We need more open-source visual effects plug-ins
Alexandre Gauthier-Foichat 13/15
OpenFX current state
• Many plug-ins, but most of them are proprietary.• About 80 are open-source: TuttleOFX
• We need more open-source visual effects plug-ins
Alexandre Gauthier-Foichat 13/15
OpenFX current state
• Many plug-ins, but most of them are proprietary.• About 80 are open-source: TuttleOFX
• We need more open-source visual effects plug-ins
Alexandre Gauthier-Foichat 13/15
Conclusion• Natron is in beta stage now and it’s a good time to join us.• We need people making packages for all linux distributions• Non developers are welcome: bug reporting,feedback,
demo reels, tutorials, translation...
• Download at https://natron.inria.fr• Mailing list: [email protected]
Alexandre Gauthier-Foichat 14/15
Thank you
• Thanks for your time !• Any questions ?
Alexandre Gauthier-Foichat 15/15