v4.8.2

HIGHLIGHTS:

• SIGMA improvements

DETAILS:

• SIGMA: fixed 1 pixel wide blur on shadows with penumbra size < 1 pixel
• SIGMA: better behavior for multi-layered shadows (a narrow penumbra inside a wide penumbra)
• SIGMA: reduced potential flickering
• SIGMA: fixed suboptimal output of the blur pass affecting TS pass
• SIGMA: improved weights for moments calculations in TS pass
• NRD: resolved some TODOs
• updated deps
• updated docs

v4.8.1

v4.8.1:

HIGHLIGHTS:

• Bug fixes and improvements

DETAILS:

• REBLUR_SH: fixed mis-normalized weighted sum for diffSh and specSh in HistoryFix pass (the regression appeared after finding a better initial weight for the center pixel)
• REBLUR_SH: minor performance optimization in "Temporal Stabilization" pass
• REBLUR_SH: fixed "touching" of specSh.w in HistoryFix pass, which is "modified roughness" and must not be processed in any way

v4.8.0

HIGHLIGHTS:

• NRD: improved FP16 viewZ support
• SIGMA: made more friendly to per light shadow denoising (multi-light scenario)
• removed unused (non-denoisers) SPECULAR_REFLECTION_MV & SPECULAR_DELTA_MV

DETAILS:

• NRD: exposed CommonSettings::viewZScale, which should help to improve FP16 support
• SIGMA: IN_SHADOWDATA => IN_PENUMBRA, IN_SHADOW_TRANSLUCENCY => IN_TRANSLUCENCY
• SIGMA: massaged front-end functions
• SIGMA: switched to use common IN_VIEWZ input instead of a custom one (it eliminates a need to clone ViewZ in case of multiple lights)
• REBLUR: minor tweaks
• SPECULAR_REFLECTION_MV: deprecated and removed
• SPECULAR_DELTA_MV: deprecated and removed
• updated docs

v4.7.0

v4.7.0:

HIGHLIGHTS:

• REBLUR: minor performance optimization
• SIGMA: numerous improvements and bug fixes
• SIGMA: temporal stabilization pass can be disabled, what makes SIGMA more useful for per-light shadow denoising if lights are many

DETAILS:

• REBLUR: number of steps in "prev-prev" test reduced to 1 (was 2)
• SIGMA: taken kernel from REBLUR
• SIGMA: per pixel rotations replaced with per frame rotations
• SIGMA: tuned random rotators (affects REBLUR too)
• SIGMA: improved "umbra in wide penumbra" behavior
• SIGMA: clarified usage of SIGMA_BackEnd_UnpackShadow
• SIGMA: reduced bias
• SIGMA: removed SigmaSettings::blurRadiusScale
• SIGMA: exposed SigmaSettings::lightDirection
• SIGMA: fixed mismatched behavior between opaque and translucent shadows
• SIGMA: anisotropic filtering support (currently only for directional light sources)
• SIGMA: reduced flickering in areas with a small blur radius (if TS is on)
• SIGMA: exposed SigmaSettings::stabilizationStrength (TS pass is disabled if 0)
• SIGMA: reduced umbra blurring when in wide penumbra
• NRD INTEGRATION: bug fixes for debug logging
• Updated deps
• Updated docs

v4.6.1

v4.6.1:

HIGHLIGHTS:

• NRD: shaders made compatible with Vulkan 1.2
• NRD: improved curvature
• REBLUR: various improvements

DETAILS:

• NRD: shaders made compatible with Vulkan 1.2
• NRD: improved curvature
• REBLUR: updated code to reflect fixes in MathLib
• REBLUR: reduced potential darkening on the screen boundaries

v4.6.0

v4.6.0

HIGHLIGHTS:

• REBLUR: exposed previously hard-coded parameter minBlurRadius
• NRD: no algorithmic changes

DETAILS:

• REBLUR: exposed minBlurRadius, which is used in the converged state
• REBLUR: blurRadius renamed to maxBlurRadius
• REBLUR: code cleanup
• SIGMA: code cleanup
• NRD INTEGRATION: updated to the latest NRI
• slightly updated docs

v4.5.0

v4.5.0:

HIGHLIGHTS:

• NRD: ResourceDesc::stateNeeded renamed to descriptorType to match ResourceRangeDesc::descriptorType because the former is a concatenation of the latter
• NRD: extended API for comfortable shader printf support (VK only)
• REBLUR: minor bug fixes

DETAILS:

• NRD: added shader printf support (VK only)
• NRD: stateNeeded renamed to descriptorType to match ResourceRangeDesc::descriptorType
• REBLUR: added missing "materialID" test for "vmb" specular motion
• REBLUR: improved fast history accumulation, which improves color clamping behavior
• NRD INTEGRATION: updated NRI
• Updated comments
• Updated README
• Updated UPDATE
• Updated deps

v4.4.3

v4.4.3:

HIGHLIGHTS:

• no changes

DETAILS:

• updated dependencies

v4.4.2

HIGHLIGHTS:

• NRD: fixed "NRD_IsValidRadiance" in NRD.hlsli

DETAILS:

• NRD: fixed "NRD_IsValidRadiance" in NRD.hlsli

v4.4.1

v4.4.1:

HIGHLIGHTS:

• RELAX: fixed new and old regressions in C++ side code

DETAILS:

• RELAX: fixed new and old regressions in C++ side code