The method first uses package tracking to not only provide better quality but also higher speed.
AMD introduced FidelityFX back in 2019 at E3, which originally only offered adaptive contrast sharpening, or CAS 1.0, but since then System expansion, Most recently the action for focusing on DirectX 12 Ultimate Was included.
Now the company has expanded the package again, although some new features in the previous Effects Update have been exhausted. Explaining the changes in more detail, LPM, version 1.2 of Luminance Preserving Mapper, also allows HDR10 support via DirectX 12 API in framing mode, with a highly optimized native resolution setting in CACAO, or the Combined Adaptive Ambient Mapper 1.2. , While Parallel Sort 1.1 will be available with Vulkan API.
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An entirely new process, however, is the Hybrid Shadows Sample, which combines one of the most popular shielding processes with ray tracing. This responds to the typical problem of shadow falls, where a high-quality shadow map might require many shadow falls. However, this comes at a cost in terms of performance and memory usage, so in practice, there is a point that is not worth going over, otherwise it will cause a lot of slowdown.
With an AMD solution, there is no need to use multiple high-resolution shadow cascades, instead the quality of shadows is improved by tracking the beam. It also does this in a way that uses data from regular, depth, and cascading shadow maps to help determine where and where the beam tracking app is. This is important so that the system focuses only on those areas where the calculations will have a visible result, and in other places it is not necessary to waste resources. In this way, high-quality shadows can be obtained even with successive, relatively low-resolution shadow maps, because in general it may be cheaper to build purposefully for beam tracking rather than spreading more high-resolution shadow falls. All you need for the calculated result is an ID, which is the same as the FidelityFX package, Also used by Microsoft.
The Hybrid Shadows Sample result is better shadow quality with faster processing than before, but here I have to add that this only applies to devices that support DirectX Raytracing 1.1, for older designs, you should definitely opt for the usual full rasterization with all its downsides. However, this is the first time that package tracking can be used not only to increase quality but also to reduce the computational need for impact.
FidelityFX’s new procedures are available at Next GitHub page.