foxy shader

Introduced adaptive denoising to greatly improve noise reduction and detail preservation in ray tracing.
Improved ray-traced lighting on normal-mapped materials for finer surface detail.
Improved ray-tracing responsiveness, convergence speed, detail, and noise reduction.
Added rapid response to light-source changes, eliminating lingering light immediately after a light-emitting block is removed.
Significantly improved rough reflection performance through half-resolution rendering.
Reduced rough reflection noise and improved screen-space rough reflections.