If there is no vcruntime140_1 in the build system, it is likely that file is not required for the viewer to run.

access violation, 'this' was null

following promotion of DRTVWR-550

- Do not try initializing shaders if requirements are not met or if window does not exist
- Warn user before closing window. Situation is unexpected, there is chance of more issues, like a freeze or a crash on close()
- mHasMultitexture is a solid requirement, if it is not present, we won't be able to run

SL-17239 Override face bounding box with avatar bounding box for rigged meshes when calculating virtual size.

LLWord should persist till the end due to wide usage.

Pausing clouds should not pause water

following promotion of DRTVWR-540

SL-17194 Impostor quality pass 2 (and fix for fully transparent rigged attachments rendering to depth buffer)

This reverts commit b45c0e3e.

# Conflicts:
#	indra/newview/llstartup.cpp

Merged previewAvatar and generateImpostor into a single function since they are nearly identical

SL-17077 Ensure profiling is disabled if gpu_benchmark fails.  Log the source of the real crash for when the viewer inevitably crashes later.

SL-17028 Fix for inconsistent ordering of transparent rigged meshes and removal of glow-only rigged meshes from depth buffer.