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Action 4.7.0 with World's first JPEG XL screenshots capturing in HDR is ready!


Hi creators and gamers!

Today we bring you Action! v4.7.0 with another World's first: JPEG XL true HDR10 screenshots capturing!
From now on not only you can create great looking HDR10 videos using Intel, Nvidia or AMD GPUs but also be ready for the future of amazing HDR still image creation!
The web browsers like Chrome, Edge and others with JPEG XL (JXL) support are only a few steps away and with Action! 4.7.0 you will be ready and ahead of the others.

Let us explain how it works in a few simple and easy steps:
  • Action! automatically detects HDR video content
  • When you push create screenshot hotkey (default F12) when HDR video is visible on your screen two screenshots are made at the same time. One is an SDR tone mapped screenshot (BMP, PNG or normal JPEG) and the other a true HDR10 JPEG XL (JXL extension) still image
  • To view it just go to the screenshots tab and the HDR screenshot will there waiting for you with a small icon on it telling that it is the HDR one
  • Double click it and our free JPEG XL HDR10 viewer will display the screenshot in true HDR colors! (HDR display is needed of course)
  • You can share the screenshots along with the viewer to anybody (just send the jxlcodec_view.exe and jxlcodec.dll files that are located in your Action!'s Steam installation folder)
  • The viewer can be assigned in Windows to open any JXL files by default
  • A more advanced standalone application for JPEG XL viewing will be available from us for free soon!


We are very excited that we can enter this wonderful HDR future with you!

And as a bonus soon with Action! you will be able to create panoramic 360 HDR still images from ANY First Point Of View game! Sounds amazing, doesn't it?

Below a list of other improvements in version 4.7.0 (and also 4.5.0 and 4.6.0):
  • Microphone volume boost to 200% level is now possible
  • HUD is now rendered in true HDR for HDR desktop and HDR games using 64 bits per pixel color
  • Fixed Alt+Tab crashing in some DirectX 10/11 games and applications
  • Improved ST.2084/BT.2020 HDR10 video signaling
  • Fixed randomly corrupted (green) recordings using hardware accelerated HEVC encoding on Nvidia GPUs
  • Fixed maximum allowed AMD AMF (VCE 1.0 to 4.1) video encoder resolution

  • Fixed active screen switching (on accounts without administrator rights)
  • Fixed desktop capture on multi-GPU systems (on accounts without administrator rights)
  • Fixed cursor position when recording regions on multiple desktops (other than primary)
  • Fixed desktop capture when non-native resolution with non-native aspect ratio is selected
  • Fixed Vulkan HUD not refreshing when recording/streaming is started
  • Fixed support for very long streamkeys (used by Booyah live streaming service)
  • Fixed not detecting specific applications as active
  • Reduced minimum streaming bitrate value for 60fps
  • OpenGL capture fixes


Mirillis Team