ericwa/tyrutils-ericw

This reverts commit 4832d9d.

… calling CalcBarycentric"

This reverts commit 459a545.

… CalcBarycentric

…acos to prevent NaN's due to values slightly over 1 / slightly under -1

Added features:
qbsp:
	parser: string escape verification.
	arg: -wrbrushes		(bspx) Includes a list of brushes for brush-based collision
	arg: -wrbrushesonly	-wrbrushes combined with -noclip argument
	arg: -notex		Write only placeholder textures, to depend upon replacements
	field: _smooth		Names a texture within the entity for which lighting should be smoothed (softens columns etc).
	field: _lmscale		Generates an LMSHIFT bspx lump for use by a light util. Note that both scaled and unscaled lighting will normally be used.

light:
	worldfield: _lightmap_scale	Forces all surfaces+submodels to use this specific lightmap scale. Removes LMSHIFT field.
	arg: -lmscale				Equivelent to _lightmap_scale worldspawn key.
	field: _project_texture		Specifies that a light should project this texture.
	field: _project_mangle		Specifies the pitch+yaw+roll angles for a texture projection (overriding mangle).
	field: _project_fov			Specifies the fov angle for a texture projection.
	arg:	-bspxlit				Writes rgb data into the bsp itself.
	arg: -bspx					Writes both rgb and directions data into the bsp itself.
	arg: -novanilla				Fallback scaled lighting will be omitted. Standard grey lighting will be ommitted if there are coloured lights. Implies -bspxlit. -lit will no longer be implied by the presence of coloured lights.

bspinfo:
	displays bspx lumps.

vis:
	no changes

…txqbsp-xt

…check light level. it's only very slightly slower.

…otlights based on the surface normal

…ght_penumbra and _sunlight2

…deSize setting

…ore checking each surface point. gives a modest speedup.

…lay 2 lights.)

…idBSP pass.

MidSplit now does two passes (structural/detail), like ChoosePlaneFromList.
Now, the first pass will pick among planes that have at least one structural face, and zero or more detail faces.
The second pass will pick among planes that have no structural faces, and zero or more detail faces.

This fixes the hull 1 leak in telefragged.map introduced when I added txqbsp's maxNodeSize feature,
and also reduces the cluster and portal count in jam6_ericwtronyn.map a bit.

Fixes some weird artifacts I noticed when experimenting with lava surface lights in jam6_ericwtronyn.map