This is release 1.5.1 of OFX, the Open Effects image-processing plug-in standard API.

Documentation and more info can be found at:

• The OpenFX website
• OFX Programming Guide By Example
• OFX API v. 1.4 Reference
• OFX API Programming Guide
• OFX API Programming Reference
• OFX Discussion Google Group

Release Notes - 1.5.1

This is version 1.5.1 of the OpenFX API, a minor release with bug fixes and improvements.

Key Features of OpenFX Version 1.5.1:

• CPU Render Support: Added kOfxImageEffectPropCPURenderSupported property to allow plugins to declare CPU rendering capability (or rather lack thereof).
• Thumbnail Rendering: Added kOfxImageEffectPropThumbnailRender property to support efficient thumbnail generation.
• Spatial Awareness: Added kOfxImageEffectPropNoSpatialAwareness. Allows the host and plugin to coordinate a render that ensures no spatial changes to the image.

Fixes in OpenFX Version 1.5.1:

• Fix LICENSE.md to conform to Github template for BSD 3-Clause (issue #194).
• Use predefined _WIN32 macro everywhere instead of defining WINDOWS, improving Windows portability.
• Fix CI build problems with conan version, expat dependency, and compiler compatibility.
• Restore older CentOS 7 builds for vfx-2021 & 2022 compatibility.
• Clarify that Image Effect Hosts property kOfxPropType must have the value
  kOfxTypeImageEffectHost, and fix host support lib to implement that.

Documentation Improvements

• Significantly cleaned up documentation for Interacts, including DrawSuite and Overlay Interacts interaction.
• Fixed documentation for clipGetRegionOfDefinition.
• Updated colourspace example for more complete coverage.
• Fixed numerous typos throughout Documentation, include, Support, and HostSupport directories (via codespell).
• Corrected copyright notice with explanation in CONTRIBUTING.md (addresses issues #110, #206).
• Updated documentation footer and build script to support uv package manager.
• Removed stray references to old OFX Association.

Deprecations

None

Detailed List of Changes

• Add kOfxImageEffectPropCPURenderSupported (issue #212) - Property to indicate CPU rendering support.
• Add kOfxImageEffectPropThumbnailRender (issue #193) - Property for thumbnail rendering mode.

1.5 plus a few color fixes.

OpenFX image processing plug-in standard

This is the latest release of OFX, the Open Effects image-processing plug-in standard API.

Documentation and more info can be found at:

• The OFX Association website
• OFX Programming Guide By Example
• OFX API v. 1.4 Reference
• OFX API Programming Guide
• OFX API Programming Reference
• OFX Discussion Google Group

Release Notes

This is version 1.4 of the OFX API. Significant additions include a
Dialog Suite for plugins to request the host to allow them to put up a
modal dialog, a NativeOrigin host property, draft render quality
support, half-float format tag available for CPU rendering (not just
OpenGL), and a new internationalizable version of the progress suite.

A number of ambiguities in the spec have also been clarified in this
version, including allowing OpenGL processing and tiled rendering to
be enabled/disabled in Instance Changed events, and clarifying the
semantics of dialogs and the progress suite. The old Analysis pass
action has also been removed.

Deprecations

In this release, some old properties and tags which were deprecated in
previous releases have now been moved to a new header file, include/oldOfx.h.
To continue to support those old tags, whether as a plugin or a host,
you'll need to include oldOfx.h.

Detailed List of Changes:

• removed = final stage of deprecation: moved to oldOfx.h
• added = new property or tag
• refined/modified = documentation of precise expectations (without touching definitions)
  also: some prototypes add a const

ofxImageEffects.h :

• removed - kOfxImageEffectPropInAnalysis
• removed - kOfxImageComponentYUVA
• added - kOfxImageEffectPropRenderQualityDraft
• refined - kOfxImageEffectPropSupportsTiles
• added - kOfxImageEffectHostPropNativeOrigin
• refined - kOfxImageEffectPropRenderScale (Interact action was missing in supported actions)
• refined - prop kOfxBitDepthHalf (kOfxImageEffectPropPixelDepth)
• refined - prop kOfxBitDepthHalf (kOfxImageClipPropUnmappedPixelDepth)
• refined - prop kOfxBitDepthHalf (kOfxImageEffectPropSupportedPixelDepths)

ofxParam.h:

• removed - kOfxParamPropPluginMayWrite
• removed - kOfxParamDoubleTypeNormalisedX
• removed - kOfxParamDoubleTypeNormalisedY
• removed - kOfxParamDoubleTypeNormalisedXAbsolute
• removed - kOfxParamDoubleTypeNormalisedYAbsolute
• removed - kOfxParamDoubleTypeNormalisedXY
• removed - kOfxParamDoubleTypeNormalisedXYAbsolute
• modified - kOfxParamPropInteractMinimumSize is now a double (matches kOfxParamPropInteractSize)
• modified - changed comments with regards to OfxParameterSuiteV1 (i.e. no Analysis action anymore)
• refined - paramGetValue, paramSetValue: precision about when it's safe to use - i.e. Instance Changed domain only)

ofxPixels.h:

• removed - OfxYUVAColourB;OfxYUVAColourS;OfxYUVAColourF // leftover from 1.2 deprecation
• modified - OfxRGBColourD should not have an "a" component

ofxProgress.h:

• refined - OfxProgressSuiteV1
• added - OfxProgressSuiteV2

ofxDialog.h: NEW

• added - OfxDialogSuiteV1

ofxOpenGLRender.h:

• refined - kOfxImageEffectPropOpenGLRenderSupported

ofxCore.h:

• modified - kOfxFlagInfiniteMax (INT_MAX) (and Min)
• added - kOfxBitDepthHalf

ofxInteract.h:

• removed - kOfxInteractPropViewportSize

ofxOld.h:

• New file added to capture removals ("removed" above)

/Support folder:

• C++ wrapper adds support for v1.3 and v1.4