Reshade TFAA

• This is a work in progress Reshade shader, which acts as an addon to other, non-temporal anti-aliasing methods.
• It adds a Temporal filter component similar to the ones found in SMAA (1Tx, Filmic SMAA T2x), TAAU, most otherwise unamed TAA implementations and even FSR2.
• It requires Marty McFly's LAUNCHPAD.fx.

Copyright Notice

• Temporal Filter Anti-Aliasing | TFAA
• First published 2022 - Copyright, Jakob Wapenhensch
• License File HERE
• https://creativecommons.org/licenses/by-nc/4.0/
• https://creativecommons.org/licenses/by-nc/4.0/legalcode

Example Shader Usage

Updates

• 0.1
  • Initial release; a lot of stuff was broken or not working at all.
• 0.2
  • Variance clamping was implemented.
  • Finished implementing features present in the UI but did nothing at all in 0.1.
  • Fixed a lot of bugs.
  • Optimized some stuff.
• 1.0
  • New shader that is both simpler and looks cleaner, in my opinion.
  • Reworked most parts of the code in some way.
  • Removed some features that were never finished or not useful.
  • Made the UI much more user-friendly.
  • Added comments and docstrings to make it usable by other devs.
  • This effect is only one file now for convenience.
• 1.1
  • Reordered blending and clamping to be done in the order they are applied in all SOTA methods.
    • This dramatically improves the temporal stability of the effect, but also causes a bit more blur.
    • Reworked the adaptive sharpening to adjust more accurately to the temporal blur caused by the filter.
  • Readded dilated motion vector sampling.
    • This reduces artifacts around edges on moving objects.
  • Reduced samples used in the sharpening pass to enhance performance; you should not notice a difference.
• 1.1.1
  • Reworked the adaptive sharpening and blending weight calculation to use less magic numbers and be more intuitive and look cleaner.
  • Removed UI elements that were accidentally left in the shader.
• 1.1.2
  • Optimized performance. Now ~ 0.4ms in 4k on a RTX 2070. Before it was ~ 0.6ms.
  • Simplified some of the code to make future updates easier.
  • Fixed some bugs.

Installation

• Install the current Reshade build.
• Drag the TFAA.fx file into your reshade-shaders/Shaders folder.
• Install https://github.com/martymcmodding/iMMERSE/blob/main/Shaders/MartysMods_LAUNCHPAD.fx.
• Ingame make sure the depth buffer is detected correctly by using the DisplayDepth.fx.
• Set the global preprocessor sttings for the depth buffer to match the ones in DisplayDepth.fx.
• Order in Reshade should be ANTIALIASING (SMAA or! CMAA2 or! FXAA) -> LAUNCHPAD -> Any GI/AO/SSR Shaders -> TFAA -> COLOR CORRECTION -> ANYTHING ELSE