SL-19784

DRTVWR-583

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 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-18563

SL-19477 Remove angular attenuation from sphere probe weight to fix harsh indirect lighting.  Minor incidental decruft.

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-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.

SL-19147 Water quality pass.  Remove gl_FragDepth writes from sky rendering (optimization).  Incidental decruft.

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-18105 Hook up render pipe directly to LLTextureEntry::mGLTFMaterial and add LLViewerFetchedTextures to LLFetchedGLTFMaterial.  Lower reflection probe resolution to 128x128 per side.

SL-18190 Fix for mystery circle showing up on east side of reflection probes.  Add one probe to rule them all as a fallback for pixels that aren't inside any influence volume.

SL-18190 Use funky distance based error correction only on water surface (revisit for general use later).

SL-18190 Water shader WIP.  Better parallax correction for sphere probes.  Reduce probe memory footprint.  Remove framebuffer copies and move to deprecate stencil buffer usage.

SL-18239 Unify PBR and non-PBR treatment of ambient/SSAO/irradiance.  Restore SSAO to release version.

SL-18190 WIP - Windlight to linear space proof of concept, better parity between release viewer and materials viewer when reflections disabled.  Avoid run-away probe ambiance.

SL-18120 Fix for specular color of legacy materials tinting environment reflections from "environment" intensity.

SL-17705 Backwards compatibility pass.  Support OpenGL pre-4.0 by disabling reflection probes and anti-aliasing.  Get render parity with current release viewer when reflection probes are disabled.

SL-18190 Don't allocate mips for irradiance maps because they're never generated.  Disable OpenGL core profile on Intel by default.