Convert LLSD map accessors to use transparent comparators and string_views to reduce string temporaries

following promotion of DRTVWR-497

Revert "Abandon all hope. Make LLRender2D mostly static variables to reduce overhead caused by getInstance locking"

This reverts commit 778f41e6.

Andrey Kleshchev authored 4 years ago and Rye Mutt committed 4 years ago

Depends onto SL-13979 for proper logging

Andrey Kleshchev authored 4 years ago and Rye Mutt committed 4 years ago

LLSingleton depends onto logging system, having logging system be based on LLSingleton causes crashes and deadlocks

This reverts commit 0f948988.

This reverts commit 51222605.

following promotion of DRTVWR-503

Character lights injected during render pass while in character edit mode
(i.e. mSpecialRenderMode == 3) were causing discrepencies between deferred
(ALM) and forward alpha blend lighting.

Removed some potential div-by-0 NaNs and a mangled clamp.