Twixtor Release Notes for After Effects

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Version 6.2.8 | January 23, 2017

  • Fixes a crashing bug. (Developer note: in premult/straight conversions)

Version 6.2.7 | December 19, 2016

  • Fixed a bug where turning on GPU resulted in green frames on Mac OS 10.12 (Sierra) on some Mac models (mainly laptops).

Version 6.2.6 | October 5, 2016

  • Added an update checker for future version updating. The update check runs on the local machine, and must be manually run.

Version 6.2.5 | June 15, 2016

  • Fixes a bug where a green frame was not produced when the GPU was NOT supported.

Version 6.2.4 | June 1, 2016

  • Fixes occasional crashing some users experienced.

Version 6.2.3 | September 29, 2015

  • Fixes a crashing bug in Premiere Pro.
  • Premiere Pro users will now see utilization of two or more GPUs at the same time, provided they are the fastest GPU on the machine, and are of the exact same type.
  • Premiere Pro users will no longer the GPU to be supported by Premiere Pro in order to utilize GPU acceleration.

Version 6.2.2 | September 18, 2015

  • Premiere Pro users will now see utilization of two or more GPUs at the same time, provided they are the fastest GPU on the machine, and are of the exact same type.
  • Premiere Pro users will no longer the GPU to be supported by Premiere Pro in order to utilize GPU acceleration.

Version 6.2.1 | June 30, 2015

  • Version needed to run in AE CC 2015 if you use splines to help guide Twixtor Pro (this version fixes a crashing bug).
  • Fixed a crashing bug with AMD FirePro series

Version 6.2 | May 15, 2015

  • Version needed to run in AE CC 2015 if you use splines to help guide Twixtor Pro.
  • Fixes some bugs in Twixtor Pro and Motion Vectors Create within After Effects CC 2014 where the render cache was not properly re-rendered when masks were modified that the plug-in was using.
  • Adds support for RVL_NOGUI_LIC and RVL_QUIT_LIC_FAIL environment variables during render-only use in After Effects. Read more here.

Version 6.1.0 | June 13, 2014

  • Fixes a bug with Motion Weighted Blend
  • Fixes a bug with Twixtor, Vectors In when only one of Prev Motion Vectors or Next Motion Vectors was supplied.
  • From recent releases:
  •     6.0.9 Fixes a bug where negative alpha could be erroneously created when slowing down footage and using motion blur compensation (bug was in GPU mode only).
  •     6.0.9 Adds GPU support for Twixtor, Vectors In and Motion Vector Create.
  •     6.0.9 Fixes a bug where GPU mode did not work properly in demo mode on some GPUs.
  •     6.0.9 Fixes a bug where incorrect vectors were produced when Image Track was not on.
  •     6.0.8 Fixes a bug where negative alpha could be erroneously created when slowing down footage and using motion blur compensation (bug was in GPU mode only).
  •     6.0.8 Adds GPU support for Twixtor, Vectors In and Motion Vector Create.

Version 6.0.9 | June 5, 2014

  • Fixes a bug where negative alpha could be erroneously created when slowing down footage and using motion blur compensation (bug was in GPU mode only).
  • Adds GPU support for Twixtor, Vectors In and Motion Vector Create.
  • Fixes a bug where GPU mode did not work properly in demo mode on some GPUs.
  • Fixes a bug where incorrect vectors were produced when Image Track was not on.

Version 6.0.8 | May 29, 2014

  • Fixes a bug where negative alpha could be erroneously created when slowing down footage and using motion blur compensation (bug was in GPU mode only).
  • Adds GPU support for Twixtor, Vectors In and Motion Vector Create.

Version 6.0.7 | April 21, 2014

  • Fixes a crashing bug that could happen when scrubbing or positioning the current time pointer on the timeline.

Version 6.0.6 | February 18, 2014

  • Adds Intel HD Graphics GPU support for AFter Effects (not Premiere Pro). On Windows, an Intel HD Graphics driver must be present with OpenCL 1.1 (or later) support. On Macintosh, Macintosh OS 10.9 (Mavericks) is needed for Intel HD Graphics GPU support.
  • Fixes a bug where Twixtor (regular) could mark frames "invalid" when valid input frames were not available (most often occurring when using negative speed). This caused frames in the host program's cache to not have frames present, which could be confusing. Blue frames are now returned instead of an error returned to AFter Effects and Premiere Pro.

Version 6.0.5 | January 16, 2014

  • Fixes a bug where images over 10,000 pixels in width or height could not be processed.

Version 6.0.4 | November 13, 2013

  • Fixes a bug in Premiere Pro CC 7.0.1 and later where changing the in point can reference incorrect frames in the source material. This is actually a bug introduced by Premiere Pro CC, and in order to workaround this bug, we have removed the option to select Color Source Video track (and you can only retime using the clip or sequence that Twixtor is directly applied to). Projects that are saved in CS6 referencing another video track as Color Source than the current one where the effect is applied will not work properly.
  • added in v6.0.3: Fixes some crashing bugs in certain situations when using GPU mode. Crashing bugs were particularly seen in the Macintosh version.
  • added in v6.0.3: Fixes incorrect results in certain situations in Twixtor Pro when using GPU mode.
  • added in v6.0.3: support for Intel HD 4000 and Intel HD 5000 graphics GPUs on Macintosh OS 10.9. Intel graphics still not supported on Windows.

Version 6.0.3 | November 8, 2013

  • Fixes some crashing bugs in certain situations when using GPU mode. Crashing bugs were particularly seen in the Macintosh version.
  • Fixes incorrect results in certain situations in Twixtor Pro when using GPU mode.
  • Adds support for Intel HD 4000 and Intel HD 5000 graphics GPUs on Macintosh OS 10.9. Intel graphics still not supported on Windows.

Version 6.0.2 | October 15, 2013

  • Fixes a bug in Twixtor Pro where black layers were produced when using foreground mattes in an After Effects 16-bit project when using GPU mode.

Version 6.0.1 | September 9, 2013

  • Initial 6.0 release with GPU acceleration.
  • Fixes a bug where Twixtor crashes when trying to use a GPU on a machine that has an Intel HD Graphics GPU. We do not support Intel HD Graphics, but Twixtor shouldn't crash, and you should be allowed to use other GPUs that may be on the machine.
  • Fixes a bug where having multiple GPUs in certain circumstances could cause Twixtor to crash.
  • Fixes a bug where some AMD GPUs on Macintosh were not usable (in the case we found, it was an AMD 6750M).
  • Fixes a bug on Windows where if there was no OpenCL library on the system that Twixtor would not load.

Version 6.0 | September 4, 2013

  • Initial 6.0 release with GPU acceleration.

Version 5.2 | August 1, 2013

  • Fixes a bug in Premiere Pro CC (7.0) where changing the in point can reference incorrect frames in the source material. This is actually a bug introduced by Premiere Pro CC, and in order to workaround this bug, we have removed the option to select Color Source Video track (and you can only retime using the clip or sequence that Twixtor is directly applied to). Projects that are saved in CS6 referencing another video track as Color Source than the current one where the effect is applied will not work properly.
  • Fixes a bug in Premiere Pro where Previews with Mercury Engine OFF could produce some orange frames at certain resolutions, due Premiere Pro reporting incorrect resolutions to Twixtor, even if your clip and sequence are the same resolution.

Version 5.1.5b | June 17, 2013

  • Adds installer support for Adobe CC.

Version 5.1.5 | November 16, 2012

  • Fixes a bug some users were seeing with licensing.

Version 5.1.4 | October 16, 2012

  • Fixes a bug where Twixtor Pro did not work proplery on interlaced material within AE CS6.

Version 5.1.2, 5.1.3 | October 7, 2012

  • Fixes a bug with Twixtor, Vector Input, that sometimes did not work properly in AE CS6.
  • Fixes a potential crashing bug with Twixtor Pro when separation mattes are used.
  • Fixes a potential licensing issue some users were seeing.

Version 5.1.1 | May 25, 2012

  • Fixes a bug where AE CS6 erroneously marked frames as "not needing to be rendered"
  • Required version for CS6.

Version 5.1 | May 3, 2012

  • Added changes necessary to work in Adobe CS6 applications

Version 5.0.4 | May 11, 2011

  • Fixes a bug some users saw with Twixtor render-only floating licenses.

Version 5.0.3 | April 21, 2011

  • Fixes a bug where Twixtor can crash.
  • Adds installer support for Adobe CS5.5 products.

Version 5.0.2 | October 28, 2010

  • Fixes a bug that crashes AE CS3 when a project is set t work with 32-bit pixels.

Version 5.0.1 | July 9, 2010

  • Adds floating license capability for Twixtor Pro and Effections floating license purchases.

Version 5.0 | May 11, 2010

  • Added support for 64b for After Effects and Premiere CS5.
  • Significant speed enhancements.
  • Better error handling within Premiere.
  • Removed the 32,000 frame number limit when using Twixtor's Frame Number retiming mode.
  • Higher resolution option for Motion Vector Create
  • Within After Effects CS5, Twixtor now has better caching behavior when animating any of Twixtor's parameters, most notably the Speed or Frame Number settings. Only the frames that need to be rerendered are removed from the cache, instead of all the previously rendered frames.

Version 4.5.11 | June 8, 2009

  • Fixed a bug where Twixtor could cause rendering to stop with no errors reported. This could happened when the source material's "in" and "out" points were trimmed within an After Effects or Premiere Pro, or the whole layer was moved to a starting time other than zero.

Version 4.5.10 | December 5, 2008

  • Fixed a bug where Twixtor could crash or hang Quantel generationQ.

Version 4.5.9 | October 10, 2008

  • Fxied a problem where Twixtor made Premiere Pro crash or hang
  • Added a new Warping Method, "Forward, no Smart Blend" in Twixtor Pro, see manual for details.

Version 4.5.8b | May 20, 2008

  • Added the ability for the installer to add an After Effects-compatible license for Twixtor if an FxPlug license was installed (Mac only). The plugin itself has remained the same, only the installer has been updated.

Version 4.5.8 | April 20, 2006

  • Fixed a problem on Windows where AE 7.0 won't quit if a project has Twixtor applied.
  • Added Intel support for Final Cut Pro. Read about limitations.

Version 4.5.7 | January 24, 2006

  • Fixed a bug that was crashing Final Cut Pro.

Version 4.5.6 | January 17, 2006

  • Added floating point image support for After Effects 7.0
  • On the Macintosh, make sure to delete the previous set of plugins for Twixtor in your plugins folder, because the name of the plugin files have been changed
  • On the Macintosh users will see a significant improvement on G5 CPUs running Mac OS 10.4 (Tiger).

Version 4.5.5 | October 11, 2005

  • Fixed a bug where the tracking could sometimes extremely poor, matching up images in a way where one would inappropriately go completely offscreen. This fix affects all the Twixtor and Twixtor Pro plugins (including the Motion Vector Create plugin included in Twixtor Pro).

Version 4.5.4 | September 16, 2005

  • Fixed a bug in Twixtor Pro that prevented spline guidance to be used from within combustion.
  • Fixed a bug where the tracking could sometimes extremely poor, matching up images in a way where one would inappropriately go completely offscreen.

Version 4.5.3 | August 15, 2005

  • Fixed a bug in the Twixtor Pro, Vectors In plugin where the Inverse warping mode was performed regardless (basically setting the Warping menud to Forward was ignored).

Version 4.5.2 | July 7, 2005

  • Fixed a problem in Twixtor Pro where InvMatteShrink values greater than zero caused some of the layers to go black when a sequence was retimed.
  • Fixed a problem with the Motion Vector Create plugin where black frames were created when "Image Track" was turned off and there was one or more foreground layers

Version 4.5.1 | March 22, 2005

  • Fixed a problem where render-only licenses worked in demo mode even when there was a valid license present.

Version 4.5 | March 11, 2005

  • Tracking completely rewritten from the ground up. Twixtor is much more accurate and exhibits fewer artifacts when there are objects crossing in the scene. (note that the "Crossing Objects?" checkbox of previous versions is gone because the new tracking in Twixtor 4.5 takes into account crossing objects to the best of its ability).
  • Added an option to automatically enhance dark imagery or imagery with poorly defined edges. In many cases, footage that was difficult to track becomes much more well-behaved upon retiming.
  • Added a smart blending option for pans and zooms to prevent inappropriate streaking.
  • Fixed a bug in Twixtor Pro where tracking points' "Use" settings were being retrieved at incorrect times. Now Twixtor correctly retrieves the "Use" parameter for each track point in the source timing (instead of the output Twixtor timing).
  • Fixed a bug in the Create Motion Vector plugin where spline's Layer setting could not be set to FG2 or FG3 (combustion problem only).
  • Because we've added new options in version 4.5:
  • You'll see that we've renamed the Twixtor 4.x and Twixtor Pro 4.x plugins as Twixtor 4.5 and Twixtor Pro 4.5. The new ones will show up in the applications as "Twixtor 4.5" and "Twixtor Pro 4.5." That way, your old projects will still run and load using the previous version of the two plugins (that way you don't have to worry about the new tracking in the new version screwing up older projects). The "Create Motion Vectors" and "Twixtor Pro 4, Vectors In" plugins remain the same and old plugins will use the new plugin, with the new features, once installed into the application's plugin folder.

Version 4.0.1 | January 28, 2005

  • Fixed a color problem some users were seeing when slowing down footage using a Motion Blur Compensation value greater than 0.0.
  • Fixed a potential crashing problem in Twixtor Pro when using Forward warping.

Version 4.0 | December 6, 2004

  • Better integration with host with respect to interlaced materail. What does this mean for you? It means you no longer set an "Output:Fields" setting for most hosts (in fact, this setting has been removed for most apps). Instead, Twixtor pays attention to the field rendering settings of the host to determine whether to create interlaced material or not. It also means that you no longer have to set the field interpretation on interlaced footage to None (however, you still have to tell Twixtor that you are giving it interlaced material).
  • Added render-only license pricing for After Effects and combustion.
  • Motion blur parameter renamed Motion Blur Compensation because it now controls the removal of motion blur as well as the addition of motion blur. This parameter now defaults to 0 instead of 0.5.
  • Regrouped the parameters so that they are divided into Input, Track and Output parameter groupings.
  • Stretching method renamed Time Remap Mode.
  • Speed/Frame settings greyed out in most hosts depending on the time remapping mode of Twixtor being used.
  • Ability to mark segments of your source material so that Twixtor does not interpolate inappropriately across cuts, dissolves and other transition.
  • Only need to set Output:Frame Rate in combustion (the parameter has been removed for all other hosts applications)
  • Only need to set Input:Frame Rate from within combustion and After Effects (the parameter has been removed for all other hosts applications).
  • After Effects only: Ability to retime audio and image sequences using After Effects time stretching and time-remap tools but using Twixtor frame interpolation methods.
  • Premiere Pro: Twixtor now works properly in Premiere Pro interlaced projects.
  • Motion vector export and import. For use in 16 bits-per-channel processing applications only.
  • Fixed a potential crashing bug from within combustion.

  • Of course, new features were added to Twixtor 4.0. For info on what is new in version 4 see the main Twixtor page and the manual that comes with the installer.
  • Because we've added new options in version 4.0:
  • You'll see that we've renamed the plugin, and that it will show up in the applications as "Twixtor 4.x" and "Twixtor Pro 4.x." That way, your old projects will still run and load (using pre-3.0 Twixtor).

Version 3.2.4 | August 31, 2004

  • Fixed another crashing bug in Premiere Pro.

Version 3.2.3 | August 30, 2004

  • Fixed a black frame and crashing bug in Premiere Pro (happened upon application of Twixtor to a clip or when rendering).

Version 3.2.2 | August 18, 2004

  • Fixed a crashing bug in combustion when interacting with parameters or scrubbing the timeline from within combustion on both Macintosh and Windows.
  • Fixed a problem from within combustion that could produce completely transparent frames.
  • Fixed a problem with crashing and hanging on multiprocessor Windows machines when deleting a plugin from a project or quitting a host application.

Version 3.2.1 | July 5, 2004

  • Fixed a rare crashing bug. The same fix will avoid incorrect tracking (when not causing a crash) in some rate situations as well.
  • The Motion Sensitivity setting is now more continous when determining how far pixels are tracked (in previous versions, the motion sensitivity only changed in discreet jumps).

Version 3.2 | December 17, 2003

  • Multiprocessor support added. Users will see a significant speedup on multiprocessor machines.
  • G5 optimization added for Mac versions of the products. Updates for Mac versions only available for Mac OS X.
  • Tracking problems have been fixed in certain cases when using layer separation in Twixtor Pro.
  • Frame-rate conversion within combustion 3 now works properly.

Version 3.0.4 | October 9, 2003

  • Added support for combustion version 3.0 that allows spline guidance through combustion's roto tools. See the manual for more info.

Version 3.0.2 | June 4, 2003

  • Fixed bug that in Twixtor Pro that caused guiding geometries to be retrieved incorrectly, which in some cases could cause the guiding geometries to do more harm than good (guiding geometry includes Twixtor's tracking point settings and guidance through AE's spline masks).

  • The bug could be viewed in previous versions when Twixtor Pro was asked to to draw the guiding geometries. In some cases, the guiding geometries were not drawn where the geometry was actually located.

Version 3.0.1 | April 5, 2003

  • Fixed bug that could create studdering footage when changing frame rates (particularly PAL to NTSC).

Version 3.0 | April 1, 2003

  • Twixtor is now more motion sensitive. As such, the default motion sensitivity for Twixtor is set to 70 (approximately the same amount of motion sensitiviy that 100 produced in version 2.0).
  • 16 bit support added for regular version.
  • Twixtor is now more motion sensitive. This means that the value of 100 for motion sensitivity can now "see farther." As such, the default motion sensitivity for Twixtor 3.0 is 70 (roughly the same as a value of 100 was for Twixtor 2.0).
  • Fixed a bug that caused no motion blur to be added if you were speeding up a clip in reverse.
  • Fixed a bug in the Twixtor Pro, After Effects plugin for Windows, that in some cases processed foreground mattes incorrectly.
  • Fixed a bug in Twixtor Pro, After Effects plugin for Mac, that caused the plugin to crash.

  • Of course, new features were added to Twixtor 3.0. See main Twixtor page for info on what is new in version 3.
  • In Twixtor Pro, the addition of a new warping method that can give better results in some situations (read the Twixtor manual for more details).
  • Because we've added new options in version 3.0:
  • You'll see that we've renamed the plugin, and that it will show up in the applications as "Twixtor 3.x" and "Twixtor Pro 3.x." That way, your old projects will still run and load (using pre-3.0 Twixtor).

Version 2.0.4 | January 24, 2003

  • Added G4 support for Mac OS versions. Twixtor now runs significantly faster on G4 machines
  • Twixtor frame rate conversion now works from within combustion 2.1 and Commotion 3.1 and later.
  • Fixed a bug that caused Twixtor to not add motion blur when speeding up footage in reverse

Version 2.0.3 | April 25, 2002

  • Fixed a bug that caused improper inbetweening when using multiple frame rates. This fix should affect users of Twixtor from within After Effects, using the frame rate conversion feature of Twixtor.

Version 2.0.2

  • Fixed a bug that caused unnecessary stuttering in certain cases when keyframing the Frame parameter.
  • Organized the buttons for combustion
  • into related groups (and now the last set of buttons spills on to a second page).

Version 2.0.1

  • Fixed a bug that corrects the following problem: when specifying output interlaced video, the fields were reversed (that is, when specifying Lower Field First, Twixtor generated upper field first video, and vice-versa).
  • Fixed a bug in which output with fields did not work with 16-bit per channel projects (Pro version only).

Version 2.0

    Currently only the After Effects version (for After Effects, Final Cut Pro, Premiere 6.0, Combustion and Commotion) has been updated to version 2.0.

  • We've renamed and replaced some of the options to make things clearer:
  • o Multiple Layers of Motion? has been renamed: Crossing Objects? (Conflicting motion?). This was done because we added the notion of foreground and background layers, and we didn't want to reuse the word "layer."
    o The frame interpolation mode Multi-Frequency has been eliminated and Motion Weighted Blend has been added. The Multi-Frequency mode was not very useful. From the 1.5 manual describing Motion Weighted Blend: When a new frame is created from existing frames it is often the case that some softening is introduced. This softening can more or less strong (depending on how far away in time the new frame is located from existing frames in the original sequence. This can result in a pulsing of what appears to be the Twixtored sequence coming in and out of focus. The Motion Weighted Blend option attempts to reduce this pulsing.
    o Time Warp Layer has been renamed Color Source. This is because you can now have color source and a tracking source that are different clips (see manual) so, in a sense, both the Color Source and Alt Motion Source (alternate tracking source) are part of the time warping input information.
  • We've added quite a few features:
  • o Alt Motion Source: Allows you to specify a different clip for tracking than the one used for color. (Previously, the same clip was always used for both tracking and color ).Of course, Twixtor assumes these two sequences line up in time.
    o Plenty Memory? (Cache last motion?): When slowing down footage, computation can often be sped up by keeping the last motion estimation vectors and reusing them. Please read the manual for approximate amount of memory needed and a few "gotchas."
    o Motion Sensitivity: Prior to version 2.0 you really had no choice to limit the amount of motion calculated for any motion estimation quality. The newly added Motion Sensitivity option now allows you to limit how much pixels can move once a particular motion vector quality is chosen. This can help eliminate the "gloop" in creating new frames that is seen when objects pass over each other in the imagery.
    o Finally, in Twixtor Pro, we allow you to specify (via a matte), a foreground layer that is separate from the background layer. The two layers are tracked, interpolated and warped separately. Twixtor uses proprietary filling and tracking techniques when working on the background layer, even when it is obscured by the foreground! Note: applying earlier versions of Twixtor to 2 layers (the foreground and background) and then combining them does not produce the same results, because in Twixtor Pro we figure out the motion for the portion of the background layer that is covered by the foreground later, an important part in reconstructing the background when the foreground moves in front of it.
    o We've optimized Twixtor so that it doesn't perform motion estimation when it doesn't need to.
  • Because we've added new options in version 2.0:
  • o You'll see that we've renamed the plugin, and that it will show up in the applications as "ReelSmart Twixtor 2.x." That way, your old projects will still run and load (using pre-2.0 Twixtor).

Version 1.4

  • Addition of a "Speed" parameter that may be animated. In this way you don't have to animate exact frame numbers if you wish to animate speed changes instead.
  • Support for 16 bits per channel from within After Effects 5.0 Pro Bundle. To gain access to 16-bit support, you must purchase ReelSmart Twixtor Pro or the ReelSmart Twixtor Pro Upgrade if you've already purchased the regular version.

Version 1.3

  • Fixes a bug that causes crashing in the Windows version of Discreet Combustion when animating parameters.
  • Revamped to work in Adobe Premiere 6.0.

Version 1.2

  • 1.2 fixes a timing bug that can cause retimed footage to stutter.
  • 1.2's tracking is much more accurate.
  • 1.2 fixes a bug that causes Combustion to crash
  • 1.2 no longer reports erroneous "Out Of Memory" errors in Commotion.
  • 1.2 no longer reports erroneous "Verify Filter Parameter" errors in Final Cut Pro.