AMD FidelityFX™ Luminance Preserving Mapper (HDR Mapper)

AMD FidelityFX™ LPM (AMD FidelityFX HDR Mapper) provides an open source library to easily integrate HDR, and wide gamut tone and gamut mapping into your game.

Supports:

DirectX® 12
Vulkan®

Part of the AMD FidelityFX™ SDK

Download the latest version - v1.1.4

Download AMD FidelityFX SDK v1.1.4 package View AMD FidelityFX SDK on GitHub Read the AMD FidelityFX LPM documentation

This release of the AMD FidelityFX™ SDK adds the following features:

Additions to the API and fixes for issues discovered.

Features

Open source, MIT license

Highly optimized

High dynamic range (HDR)

Details

Can be configured to work with any positive RGB input working color space.
Can be configured to target any RGB output color space (target any display).
Solution is completely ALU-based without any LUT, so has the capacity to run asynchronously with workloads which are bottlenecked by other hardware limits.
Supports packed FP16 for better performance on Vulkan®.
Custom config setup for scenes, and test pattern in sample provided as starting points for developers.

Comparison

AMD FidelityFX™ LPM is highly configurable, allowing you to tweak the numerous parameters to create the look you require.

As seen in Godfall

Counterplay

“During the production of Godfall, we continuously fine-tuned the art visuals. We understood our limitations with the current technology, which required everyone to spend an ungodly amount of time to find clever workarounds. Ultimately, we achieved a style that we were mostly happy with, but something was still lacking. We had to take a step back; we needed to figure out why.

Everything looked last gen. The metals were not shiny enough. The armor pieces, the fires, the magical effects, the backgrounds all appeared muted and uninteresting. With little hope and time left to tinker, we thought we had to live with these deficiencies. When AMD approached us with FidelityFX LPM, we were amazed at the potential. Together, AMD and Counterplay worked feverishly to integrate this technology. Not only did FidelityFX LPM bring back the colors and vibrancy we envisioned, but it also helped solidify our goal. The players will now see shiny objects with great detail, bright environments without being overblown, and contrast without muddiness. Above all else, the biggest surprise was the HDR enhancements – the game is beautiful.”

Alan Lee, Environment Technical Director

Counterplay Games

Learn more about HDR and AMD FreeSync™ technology

Using AMD FreeSync™ Premium Pro HDR: Code Samples

Part 4 of a series of posts on AMD FreeSync™ Premium Pro Technology. Here, we look at how to enable FreeSync Premium Pro with all next gen graphics APIs.

Using AMD FreeSync™ Premium Pro HDR: Gamut Mapping

In this tutorial, we will be going over what gamut mapping is, how we implemented a gamut mapper to show how FreeSync HDR works, and some pitfalls with different gamut mapping algorithms.

Using AMD Freesync™ Premium Pro HDR: Tone Mapping

In part two of this tutorial, we cover the terminology of tone mapping, what tone mapping is, as well as different monitor features that influence how well a tone mapper will work.

Using AMD FreeSync™ Premium Pro HDR: Color Spaces

The first in a series of four tutorials related to AMD Freesync™ Premium Pro HDR. This tutorial covers terminology related to color.

AMD Compressonator V2.5 release adds enhanced HDR support

The BC6H codec has been improved and now offers better quality than previous releases, along with support for both 16 bit Half Float and 32 bit Float formats per channel.

VDR Follow Up – Tonemapping for HDR Signals

Follow up on VDR and practical advice on adapting a game’s tonemapping pipeline to both traditional display signals and new HDR output signals.

Optimized Reversible Tonemapper for Resolve

Optimized tonemapper form of the technique Brian Karis talks about on Graphics Rants: Tone mapping. Replace the luma computation with max3(red,green,blue).

Requirements

DirectX® 12
Vulkan®

Version history

The AMD FidelityFX™ SDK 1.1.4 is a patch release that includes additions to API and fixes for issues discovered with AMD FSR 3.1.0 to 3.1.3.
Exposed 4 new tunings to reduce AMD FSR upscaler ghosting in newly disoccludded pixels or highly reactive pixels.
Changed the default value of fMinDisocclusionAccumulation to -0.333 (from equivalent of 0.333 in AMD FSR 3.1.3) to reduce disocclusion ghosting.
Added ffxQueryGetProviderVersion to get version info from created ffx-api context.
Exposed ffxDispatchDescFrameGenerationPrepareCameraInfo as a linked struct. It is a required input to AMD FSR 3.1.4 and onwards for best quality.
Added frame generation debug checker support.
Dropped unused interpolation command lists if frame generation callback fails, to fix infinite wait at swapchain destruction.
General fixes to Vulkan® Frame Interpolation Swapchain.
General framework fixes and updates.
Frame pacing debug line added to Vulkan®.
Added new FFX error when create frame interpolation swapchain results in E_ACCESSDENIED in DX12 due to overlay or capture software.
Enabled support for frame interpolation swapchain on Windows® 10 1909 and potentially earlier versions.
Fixed flipped disocclusion factor from previous and current backbuffer.
Fixed HDR mode issues in Cauldron sample.
Fixed MSVC C compile errors including ffx-api.
The AMD FidelityFX™ SDK 1.1.4 also updates the following to address select issues:
AMD FidelityFX™ Brixelizer GI 1.0.1
AMD FidelityFX™ Breadcrumbs 1.0.1