I believe this was discussed in the February live show on YouTube. Tim said that blur is very resource intensive and would require significant computing power.

I have tried UVMaps to do this and it drove the CPU usage through the roof, so that's definitely not the best route for implementation

Nvidia obs codec


StreamFX 0.8.0 Beta 1

Apr 8, 2020

We're inching closer and closer to the full release of 0.8.0, and let's celebrate that with the first production ready beta release! This release fixes some major issues that were introduced in a refactor, further improves Linux support, and updated the translation files from Crowdin again. And that's not all, though the next part is not my own doing:

The Nvidia Face Tracking filter is finally available thanks to Nvidia releasing the AR SDK publicly. This means that you can now have a "smart camera" always follow your face, keeping the action in the frame, allowing you to engage with your viewers without having to manually crop and zoom the camera source. A more in-depth view on it is available on my blog.

That is pretty much it for this release. Lots of things were fixed or added over the past Alpha releases, and now we're slowly but surely moving towards a full release again. And best of all, we've finally hit stable again.

Support the StreamFX project!
If you rely on StreamFX for your streaming and recording needs and want StreamFX to continue existing, consider supporting me on Patreon or on Github Sponsors! Even a support as low as one dollar per month means a lot and helps keep the project afloat, and if every single user of the plugin was supporting me with just one dollar per month I could spend a lot more time working on the project than I do now. So what are you waiting for?

Help & Support
Before installing this plugin, please make sure to read the Installation Guide which includes the necessary prerequisites for succesfully getting StreamFX to run. If it still does not work, consider joining the official Discord.

Changelog
0.8.0b1

Updated translations from Crowdin, huge thanks to everyone submitting translations!
Fixed FFmpeg Encoders not respecting user selected color formats and instead always using YUV 4:2:0.
Fixed FFmpeg ProRes not correctly overriding color formats with the ones supported by the selected profile.
Fixed a lot of code issues by actually jumping ship to modern C++.
Removed the lib prefix from the StreamFX.so files on Linux. Make sure you delete the old version of the plugin first if you're using Linux!

0.8.0a4

Updated support for libOBS v25.0.3 and newer.
Added support for Ubuntu 18.04 and 19.10, take a look at the platform parity wiki page to see what is missing.
Fixed potential memory corruption caused by FFmpeg Encoders.
Fixed a regression introduced in 0.7.2 which causes 3D Transforms to suddenly invert. (#116)
Added Custom Shader Filters, Sources and Transitions - and also added extra examples for them.
Added Nvidia Face Tracking filter which will be available at a later point in time.
Updated translations from Crowdin, many thanks to all the volunteer translators!

0.8.0a3

Updated support for libOBS v25.0.1 and newer.
Fixed 3D Transform causing discoloration in transparent sources. (#104)
Fixed audio jitters caused by audio mirroring in Source Mirror happening out of order. (#111)
Fixed a common freeze new to libOBS v25 caused by Source Mirror.
Fixed audio mirroring only working every second configuration update in Source Mirror.

0.8.0a2

Added FFmpeg Encoders which expose various encoders available in FFmpeg to you with a neat, easy to use UI (if you can read tooltips). You will find them available under either Streaming or Recording, depending on the codec you want to encode. This integration is slightly different from the one in obs-ffmpeg-encoder, so the two plugins will clash and you should remove obs-ffmpeg-encoder ahead of time using its uninstaller entry.
Improved Custom Shaders further, however these are still very experimental. Expect these to crash, corrupt or otherwise eat your setup in unexpected ways, and also expect these to change wildly.
Improved Audio Mirroring in Source Mirror by relying on a global thread pool instead of a thread per source, drastically reducing the total CPU load in massive setups.
Removed scaling from Source Mirror which was mostly broken anyway, so please use any of the available filters instead.
Fixed a possible crash in multi-core systems caused by event callbacks.
Fixed various crashes and corruptions caused by Source Mirror, Dynamic Mask and Blur.

0.8.0a1

Important: The plugin was renamed to StreamFX, users that manually installed this plugin (or manually built it) must ensure that the old obs-stream-effects files are removed before installing the new version.
Deprecated 32-Bit versions of the plugin. You don't have an excuse to be on 32-bit anymore, hardware has gotten dirt cheap thanks to AMD Ryzen. You can get a barebone modern PC for around 260 €, or upgrade your existing one for around 140 €.
Added additional options for Tint control to Color Grade, allowing fine tuning of what is Shadow, Midtone and Highlight.
Added GPU debug markers to most of the code which allow GPU debuggers like NVIDIA Nsight to show the exact time taken for each effect step.
Added a new example shader: Plasma. This effect simulates old school plasma effects and showcases some of the features of Custom Shaders.
Added a temporary workaround for a bug in OBS Studio to ensure that StreamFX does not crash or corrupt OBS Studio's memory. A fix to OBS Studio has already been submitted and is waiting on Review.
Updated translations from Crowdin: de-DE, es-Es, fr-FR, it-IT, ja-JP, nl-NL, pl-PL, ru-RU, sv-SE, zh-CN. Much thanks to all the contributors on Crowdin!
Improved Custom Shader Sources by adding support for automated file reloading, dynamic parameter updates, and various UI improvements.
Improved stability drastically by gracefully handling all unexpected exceptions and refactoring a lot of code.
Improved performance drastically by no longer always caching sources and ensuring that some code hotspots don't duplicate heap data on call.
Moved all examples from data/ to data/examples/.
Fixed a few crashes caused by the Graphics Subsystem Wrapper (GSW).
Fixed a freeze with Source Mirror when retrieving the size of a mirrored Source.
Fixed rescaling size in Source Mirror when "Use Original Size for Transform" is active.
Fixed filters messing with source sizes when they shouldn't be.
Fixed a freeze caused by Directional Gaussian Blur (#83, #85).
Removed Custom Shader Filters temporarily, they will return later.
Removed AppVeyor Continuous Integration in favor of GitHub Actions. You can now download bleeding edge builds from here by clicking on the commit, then clicking on Artifacts, and then selecting either windows-2016 (Windows 7) or windows-2019 (Windows 10 or up to date Windows 7).


StreamFX (for OBS Studio) 0.8.0b1

Overall

Added new translations from CrowdIn. Huge thank you to all the contributors, you can take part in translating the project too if you have some spare time.
Reduced general plugin overhead by reducing the amount of events being listened to.
(Update 2) Updated translations from Crowdin.
(Update 3) Fixed source tracking not updating when sources are renamed.
(Update 3) Fixed log spam when a source can no longer be found.

Blur Filter

Completely redesigned the UI to allow new options without having to hardcode them.
Added Dual Filtering blur which is an approximation of Gaussian blur that uses around 98% less GPU resources and thus is capable of larger blur sizes.
Added Rotational blur, which can be used to simulate rolling a camera in place.
Added Zoom blur, which can be used to simulate moving a camera forward or backward.
Added an empty entry to the masking sources list.
Increased the maximum blur size for most Blur types to 127 from 25.

Displacement Filter

(Update 2) Fixed a crash when a zero-length filename was given.
(Update 2) Fixed a crash when the selected file could not be found.

Source Mirror Source

Added support for mirroring scenes as well as sources. This is a backwards compatible change and does not require the new libOBS v23.x API.
Fixed a freeze that happened with audio mirroring and opening the filters dialog for the Source Mirror source.
Fixed a freeze that happened with audio mirroring and opening the filters dialog for the mirrored source.
Fixed a bug that caused sources with no size or no video to still attempt to render.
Fixed audio stuttering and skipping with audio mirroring, which was caused by naively assuming that there is enough CPU time to do both capture and mirror in the same millisecond.
(Update 1) Fixed Source Mirror rendering offscreen since v0.6.0.
(Update 1) Fixed an at-exit crash due to the new audio mirroring code introduced in v0.6.0.

Transform Filter

(Update 2) Position, Rotation, Scale and Shear properties now have a proper description.

Just registered to say this:

+1

would be a super nice feature for simple & clean intros.
1)Blur the video
2)add a title animation
3)remove blur

+1

+1