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Features ​

• Global Ilumination
  Implements Screen Space Visibility Bitmask Indirect Lighting (SSVBIL) to achieve real-time global illumination with minimal performance overhead, leveraging bitmask-based visibility approximation for accurate indirect light bounces in complex scenes.

• Photorealistic, real-time, and fast Atmospheric Scattering
  Combines Unreal Engine's Sky Atmosphere model with Epipolar Sampling for real-time volumetric light shafts and wavelength-dependent sky rendering, enabling dynamic time-of-day transitions and physically accurate aerial perspective.

• High-quality, fast, and adaptive Shadows
  Deploys adaptive shadow resolution via Rectilinear Texture Warping, reducing aliasing artifacts while maintaining <2ms rendering cost, with variable penumbra simulation for contact-hardened soft shadows.

Versions ​

v1.2.0 ​

New

• Added emissive curve setting

Improvement

• Greatly improved GI quality and temporal stability
• Do GI accumulation in full resolution for higher quality and less flickering
• Added Shared memory optimization to GI Denoiser filter
• Added fast history clamping to denoiser for sharper shadows and more responsive update
• Optimized GI reproject branching

New vs Old

Ours vs ITRP

Ours vs Kappa