SL-19000 Fix various 3D UI components not respecting depth buffer.  Incidental decruft.  Do I get a prize for 1000th jira?

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-18869 Touch up -- Prune "post_pos" from shadow shaders that don't need it and fix non-standard gl_Position z values

SL-18869 Optimizations -- Revive "Frame Profile" and GL_DEPTH_CLAMP.  Remove usage of gl_FragDepth from shadow shaders.

SL-18869 Optimizations -- Decruftify LLRenderTarget, use a shader to copy color/depth instead of glCopyTexSubImage or glBlitFrameBuffer

Fixes SL-18484.

SL-18784 Refactor physics shape display to not require its own render target.  Remove "Hover Glow Objects" to free up a superfluous render target.

SL-18785 Fix for corrupt reflection probes on various preference changes.  Add UI for Screen Space Reflections.

SL-18692 Fix for fullbright alpha not clipping against water plane (also fixes ultraspace particles).

SL-18682 WIP -- Clear BOOST_SELECTED as needed.  GL 3.2 compatibility pass.  Fix for stack underflow when reflection probes disabled.

SL-18662

SL-18154 Profile guided optimizations vs release viewer.  Trim some unused abilities and remove some more fast timers.

Mostly just making it actually kind of work.  Still needs a lot more tweaking - but can revisit later.
SL-18332

original fix by Beq Janus

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

First pass of Screen Space Reflections

Approved-by: Dave Parks