DRTVWR-583

DRTVWR-583

DRTVWR-559 Revert skies to be very close to release and disable tone mapping when probe ambiance is zero.

Hack for desaturating legacy materials has been removed for performance and quality reasons.

Adds a new setting for auto adjusting legacy skies.  This is the PBR "opt out" button.  If disabled, legacy skies will disable tonemapping, automatic probe ambiance, and HDR/exposure.  If enabled, legacy skies will behave as if probe ambiance and HDR scale are 1.0, and ambient will be cut in half.  

HDR scale will act as a sky brightener, but will automatically adjust dynamic exposure so the sky will be properly exposed.  If you want relatively even exposure all the time, set HDR Scale to 1.0.  If you want a high range of exposures between indoor/dark areas and outdoor/bright areas, increase HDR Scale.

Also tuned up SSAO (thanks Rye!).

Reviewed with Brad.

DRTVWR-559 Remove RenderReflectionProbeCount (which is bugged) and lean on RenderReflectionProbeLevel for preferences (which works).

DRTVWR-559 Add control for automatic reflection probes to advanced preferences and featuretable. Remove Reflections checkbox.  Don't persist reflection probe volume display between sessions.  Incidental decruft.

SL-19538 Clear probes on sky setting slam.  Better probe update prioritization.  Incidental decruft.

SL-19538 Remove clouds from irradiance maps and don't conflate max probe samples with max probe neighbors, and don't move manual probes after they are complete (removes flickering around Sponza).

SL-19538 Followup -- tune exposure parameters and clamp local light ambiance.  Make render targets 16F and scrube NaNs (thanks Rye).  Update midday. (#154)

* SL-19538 Remove hacky ambiance scale and take the mittens off probe ambiance values.  Fix for sky brightening being done in sRGB space.

DRTVWR-559 Quality pass -- Fix sky banding, fix off-by-one-mip in reflection probes (thanks Rye), remove noiseMap from light shaders (removes speckles), make irradiance maps RGB16F instead of RGBA16.  Use actual luminance for sky instead of max color component during irradiance map pass.

SL-19281 Unify handling of haze and gamma between fullbright and not and move haze back to sRGB color space to stay consistent with sky colors.  Also fix broken "roughness" stuck at 0.2.

SL-19277 Fix for fallback probe sometimes getting occluded and making void water dark after teleport.  Never default to having reflections off.

SL-19226 Reimplement water fresnel offset/scale, exposure balance for midday, adjust reflections off, and decruft depth buffer error correction shenanigans that are no longer used.

DRTVWR-559 Fix for irradiance maps going black at 128x128 radiance map resolution.  Improve radiance map anti-aliasing and default to 128x128 everywhere.

DRTVWR-559 Fix for stall in probe occlusion culling and fix for culled neighbors getting sampled (badly).

DRTVWR-559 WIP -- occlusion culling for reflection probes -- has a defect for objects close to the camera at some angles and leaks query objects, will follow up.

SL-18927 Warn *before* destroying content, not after.  Followup from last commit -- immediately apply scale to sphere probes.

SL-18780 Turn down contribution of cloud shadow to reflection probe ambiance and make the value a debug setting.

SL-19015 Balance sun/sky ambiance with punctual light ambiance.  Prevent irradiance maps from being brighter than the environment.

SL-19015 Bump probe resolution back to 256 by default (drop to 128 if vram < 2GB), remove irradiance map feedback loop (one bounce, but but more stable and allows for much brighter first bounce), make sky contribution to irradiance not tint the world blue.  Make irradiance that appears in radiance maps match world irradiance.

* SL-19203 WIP -- Integrate SSR with reflection probes.  Decruft LLRenderTarget.

* SL-19203 WIP -- Re-integrate SSR.  Incidental decruft.

* SL-19203 WIP -- SSR frame delta correction (still broken for Z)

* SL-19203 WIP -- SSR frame delta Z fix

* SL-19203 WIP -- Make SSR toggleable again and disable SSR in cube snapshots.

* SL-19203 WIP -- Soften sphere probe transitions and fix reflections on void water (make fallback probe a simple terrain+water+sky probe).  Remove parallax correction for automatic probes to reduce artifacts.

* SL-19203 Tune probe blending.

* SL-19203 Cleanup.

SL-18869, SL-18772  Overhaul VBO management, restore occlusion culling, intel compatibility pass, etc

SL-18780 Feedback cloud coverage into reflection probe ambiance to recover legacy behavior of cloud coverage brightening ambient lighting without destroying the ability to have good probe driven ambiance.

Jonathan Goodman authored 2 years ago and David Parks committed 2 years ago

First pass of Screen Space Reflections

Approved-by: Dave Parks