Afterlight — temporal coast playground

Loading the synchronized coast replay…

00:00.000 / 00:36.200

frame —GPU —adapter —

View

Live percentages

Whole effect100%

Ambient occlusion Only100%

Reality extension Only100%

One control over how far the effect is allowed to go. It scales transport reach exponentially (50% reaches about 2.8 m, 100% reaches 4 m, 200% reaches 8 m, 400% reaches 32 m) and the ceilings linearly: the positive-fill ceiling, the AO relief budget (half a stop at 100%, one at 200%), and colour transfer. Fill fades out as a surface approaches white, so pushing the control cannot wash out authored highlights, and the sharp contact band never moves. 0-200% is the conservative range — positive energy never exceeds one exposure stop. 200-400% is the dramatic tier: up to two stops of fill and one and a half of AO relief. It exists so there is somewhere to tone down from while grading a look; it is not the recommended default and it has not been through temporal qualification, so expect the underlying gather's instability to be amplified along with everything else.

Protect detected lights100%

Diffuse history85%

Diffuse light stabilization350 ms

Applied light softness100%

Damps both rising and falling diffuse illumination during a pan. History is clipped to the current frame's local radius-32 light field before blending, so stale light cannot paint an unrestricted trail over newly revealed geometry. Applied light softness adds a cheap, post-history depth/normal-aware filter. Its radius grows with the measured light-travel distance: local colour bleed stays tighter while sky/environment fill is broader. The percentage scales that model globally; 0% is the unblurred comparison. Neither control filters sharp AO.

Temporal caveat: this capture has no engine motion vectors. Stationary holds rotate samples and converge at the selected history strength. During depth-detected motion, sharp AO stays current-frame while rising and falling changes in the softened bounce use bounded, neighborhood-clipped same-pixel history. Hard cuts reset both. This is not motion reprojection—production camera-motion history still needs pose, vectors, or qualified flow.

Execution

AO radius model

Maximum AO reach1.00 m

Adaptive mode uses a per-pixel radius of roughly 10% of view depth, capped by the maximum above. Near geometry stays sharp; distant geometry receives broader world-space shading. Every direction reserves taps near 10%, 50%, and 90% of that local radius.

Geometry extension

GTAO quality

Colour is the streamed MP4; shader depth is a synchronized, codec-free 16-bit R2 sidecar (0.46 mm/code over this capture). Release claims still use the canonical RGB24 + colour corpus and its manifest hash.