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Micro optimizations #6

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208e128
Micro optimizations galore
superpowers04 Dec 13, 2025
578a127
fixes
superpowers04 Dec 17, 2025
ed1655b
Typo
superpowers04 Dec 17, 2025
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1 change: 1 addition & 0 deletions lua/autorun/!!!!!_lithium.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ if SysTime() - _G.LITHIUM_LastAutoReload < 0.1 then return end
_G.LITHIUM_LastAutoReload = SysTime()

require("lithium")
local math=math

concommand.Add("lithium_samplefps_"..(SERVER and "sv" or CLIENT and "cl" or "unk"), function(ply, _, args, _)
if not IsValid(ply) and SERVER then
Expand Down
4 changes: 2 additions & 2 deletions lua/autorun/server/sv_lithium_controls.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -5,15 +5,15 @@ net.Receive("lithium_controls", function(_, ply)
if msg == 1 then -- set bool
if not ply:IsAdmin() then return end
local cv = net.ReadString()
if not string.StartsWith(cv, "lithium_") then return end
if not cv:StartsWith("lithium_") then return end
local cvv = GetConVar(cv)
if not cvv then return end
cvv:SetBool(net.ReadBool())
return
end
if msg == 0 then -- get bool
local name = net.ReadString()
if not string.StartsWith(name, "lithium_") then return end
if not name:StartsWith("lithium_") then return end
net.Start("lithium_controls")
net.WriteUInt(0, 4)
net.WriteString(name)
Expand Down
13 changes: 6 additions & 7 deletions lua/includes/modules/hook_lithium.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -149,14 +149,13 @@ end
function CallPart(hook_table, event, i, arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9)
if hook_table[i + 1] then
return hook_table[i](arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9)
else
name = hook_table[i + 2]
if not name then return end
if not name:IsValid() then
return RemoveForce(event, name)
end
return hook_table[i](name, arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9)
end
name = hook_table[i + 2]
if not name then return end
if not name:IsValid() then
return RemoveForce(event, name)
end
return hook_table[i](name, arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9)
end

function Call(event, gm, arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9)
Expand Down
16 changes: 6 additions & 10 deletions lua/lithium/extensions/caching.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -25,27 +25,23 @@ local isnumber = isnumber
hook.Add("OnEntityCreated", "LITHIUM_CacheEntity", function(ent)
if not ent:IsValid() then return end
local idx = ENTITY_EntIndex(ent)
if idx == -1 then return end
if idx == 0 then return end
if idx == -1 or idx == 0 then return end
entlist[idx] = ent
end)

hook.Add("EntityRemoved", "LITHIUM_CacheEntity", function(ent, fullupdate)
if fullupdate then return end
local idx = ENTITY_EntIndex(ent)
if idx == -1 then return end
if idx == 0 then return end
if idx == -1 or idx == 0 then return end
entlist[idx] = nil
end)
function Entity(entindex)
if not isnumber(entindex) then entindex = tonumber(entindex) end
local ent = entlist[entindex]
if not ent then
ent = OldEntity(entindex)

if entindex ~= 0 then
if ent and ENTITY_IsValid(ent) then entlist[entindex] = ent end
end
if ent then return ent end
ent = OldEntity(entindex)
if entindex ~= 0 then
if ent and ENTITY_IsValid(ent) then entlist[entindex] = ent end
end
return ent
end
13 changes: 9 additions & 4 deletions lua/lithium/extensions/client/optimised_draw.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -84,6 +84,7 @@ local surface_DrawTexturedRectRotated = surface.DrawTexturedRectRotated

local string_sub = string.sub

local math = math
local math_ceil = math.ceil

local Tex_Corner8 = surface.GetTextureID("gui/corner8")
Expand All @@ -106,6 +107,8 @@ function draw.GetFontHeight(font)
return h
end

local tbl_concat = table.concat

function draw.SimpleText(text, font, x, y, color, xalign, yalign)
surface_SetFont(font or "DermaDefault")

Expand Down Expand Up @@ -142,27 +145,29 @@ function draw.DrawText(text, font, x, y, color, xalign)

local lineHeight = draw.GetFontHeight(font or "DermaDefault")

local line_start = 1
for i=1, #text do
local ch = string_sub(text, i, i)
if ch == "\n" then
local curString = string_sub(text,line_start,i)
if #curString > 0 then
draw.SimpleText(curString, font, curX, curY, color, xalign)
end

curY = curY + lineHeight -- / 2
curX = x
curString = ""
line_start = i+2
elseif ch == "\t" then
local curString = string_sub(text,line_start,i)
if #curString > 0 then
draw.SimpleText(curString, font, curX, curY, color, xalign)
end
local tmpSizeX, _ = surface_GetTextSize(curString)
curX = math_ceil( (curX + tmpSizeX) / 50 ) * 50
curString = ""
else
curString = curString .. ch
line_start = i+2
end
end
local curString = string_sub(text,line_start,i)
if #curString > 0 then
draw.SimpleText(curString, font, curX, curY, color, xalign)
end
Expand Down
89 changes: 47 additions & 42 deletions lua/lithium/extensions/lastresort.lua
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Original file line number Diff line number Diff line change
@@ -1,21 +1,23 @@
require("niknaks") -- bsp parser

if not NikNaks then return end
local math = math
local min,max,abs = math.min,math.max,math.abs

local function calc_lighting(pos, normal)
local surface = render.GetLightColor(pos + normal)
--local exposure = render.ComputeLighting(pos + normal, normal)

local final = (surface)
final[1] = math.min(final[1]^(1 / 2.2), 1)
final[2] = math.min(final[2]^(1 / 2.2), 1)
final[3] = math.min(final[3]^(1 / 2.2), 1)
final[1] = min(final[1]^(1 / 2.2), 1)
final[2] = min(final[2]^(1 / 2.2), 1)
final[3] = min(final[3]^(1 / 2.2), 1)
final = final * 255

--return final[1], final[2], final[3], 255
return math.abs(normal.x * 127) + final[1] / 255 * 127,
math.abs(normal.y * 127) + final[2] / 255 * 127,
math.abs(normal.z * 127) + final[3] / 255 * 127,
return abs(normal.x * 127) + final[1] / 255 * 127,
abs(normal.y * 127) + final[2] / 255 * 127,
abs(normal.z * 127) + final[3] / 255 * 127,
255
end

Expand Down Expand Up @@ -69,55 +71,55 @@ local function generate_map_meshes()
do_face(v1, vmid)
do_face(v2, vmid)
do_face(v3, vmid)
p1 = Vector(math.min(p1.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 0
math.min(p1.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 0
math.min(p1.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 0
p1 = Vector(min(p1.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 0
min(p1.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 0
min(p1.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 0

p2 = Vector(math.max(p2.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 1
math.min(p2.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 0
math.min(p2.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 0
p2 = Vector(max(p2.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 1
min(p2.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 0
min(p2.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 0

p3 = Vector(math.min(p3.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 0
math.max(p3.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 1
math.min(p3.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 0
p3 = Vector(min(p3.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 0
max(p3.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 1
min(p3.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 0

p4 = Vector(math.max(p4.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 1
math.max(p4.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 1
math.min(p4.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 0
p4 = Vector(max(p4.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 1
max(p4.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 1
min(p4.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 0

p5 = Vector(math.min(p5.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 0
math.min(p5.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 0
math.max(p5.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 1
p5 = Vector(min(p5.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 0
min(p5.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 0
max(p5.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 1

p6 = Vector(math.max(p6.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 1
math.min(p6.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 0
math.max(p6.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 1
p6 = Vector(max(p6.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 1
min(p6.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 0
max(p6.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 1

p7 = Vector(math.min(p7.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 0
math.max(p7.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 1
math.max(p7.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 1
p7 = Vector(min(p7.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 0
max(p7.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 1
max(p7.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 1

p8 = Vector(math.max(p8.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 1
math.max(p8.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 1
math.max(p8.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 1
p8 = Vector(max(p8.x, v1.pos.x, v2.pos.x, v3.pos.x), -- 1
max(p8.y, v1.pos.y, v2.pos.y, v3.pos.y), -- 1
max(p8.z, v1.pos.z, v2.pos.z, v3.pos.z)) -- 1
end)

if not succ then print(str) end
end

if mesh.VertexCount() >= MAX_TRIANGLES then
mesh.End()
table.insert(imeshes, imesh)
table.insert(minmaxs, {p1, p2, p3, p4, p5, p6, p7, p8})
imeshes[#imeshes+1] = imesh
minmaxs[#minmaxs+1] = {p1, p2, p3, p4, p5, p6, p7, p8}

imesh = Mesh()
mesh.Begin(imesh, MATERIAL_TRIANGLES, MAX_TRIANGLES)
end
end
--end
mesh.End()
table.insert(imeshes, imesh)
table.insert(minmaxs, {p1, p2, p3, p4, p5, p6, p7, p8})
imeshes[#imeshes+1] = imesh
minmaxs[#minmaxs+1] = {p1, p2, p3, p4, p5, p6, p7, p8}

return imeshes, minmaxs
end
Expand All @@ -137,7 +139,7 @@ function EyePos() return eyepos end
function EyeAngles() return eyeang end

local vm_fov = GetConVar("viewmodel_fov")

local RENDERGROUP_OPAQUE, RENDERGROUP_VIEWMODEL, RENDERGROUP_OPAQUE_BRUSH, RENDERGROUP_BOTH = RENDERGROUP_OPAQUE, RENDERGROUP_VIEWMODEL, RENDERGROUP_OPAQUE_BRUSH, RENDERGROUP_BOTH
function render.RenderView(view)
local vm = LocalPlayer():GetViewModel()
local view = table.Copy(view)
Expand All @@ -160,9 +162,12 @@ function render.RenderView(view)
local opaque, translucent = {}, {}
local rendergroup
for _, ent in ents.Iterator() do
if not IsValid(ent) or ent:GetNoDraw() then continue end
if ent == vm then continue end
if ent:GetClass() == "gmod_hands" then continue end
if not IsValid(ent)
or ent:GetNoDraw()
or ent == vm
or ent:GetClass() == "gmod_hands" then
continue
end
-- frustrum culling, if too close dont bother
--[[
local pos = ent:GetPos()
Expand All @@ -185,7 +190,7 @@ function render.RenderView(view)
end
end

if hook.Run("PreDrawOpaqueRenderables", false, false, false) ~= true then
if not hook.Run("PreDrawOpaqueRenderables", false, false, false) then
local ent
for i=1, #opaque do
ent = opaque[i]
Expand All @@ -196,7 +201,7 @@ function render.RenderView(view)
hook.Run("PostDrawOpaqueRenderables", false, false, false)
end

if hook.Run("PreDrawTranslucentRenderables", false, false, false) ~= true then
if not hook.Run("PreDrawTranslucentRenderables", false, false, false) then
local ent
for i=1, #translucent do
ent = translucent[i]
Expand All @@ -209,8 +214,8 @@ function render.RenderView(view)

if view.drawviewmodel then
if IsValid(vm) and
hook.Run("PreDrawViewModel", vm, LocalPlayer(), LocalPlayer():GetActiveWeapon()) ~= true and
hook.Run("ShouldDrawLocalPlayer", LocalPlayer()) ~= true and LocalPlayer():ShouldDrawLocalPlayer() ~= true then
not hook.Run("PreDrawViewModel", vm, LocalPlayer(), LocalPlayer():GetActiveWeapon()) and
not hook.Run("ShouldDrawLocalPlayer", LocalPlayer()) ~= true and LocalPlayer():ShouldDrawLocalPlayer() then
cam.Start3D(eyepos, eyeang, vm_fov and vm_fov:GetFloat() / 0.75 or 60)
render.DepthRange(0, 0.03)
vm:DrawModel()
Expand Down
39 changes: 21 additions & 18 deletions lua/lithium/gpusaver.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -7,48 +7,51 @@ local show_activity = CreateConVar("lithium_gpusaver_info_activity", 1, {FCVAR_A
local show_session = CreateConVar("lithium_gpusaver_info_session", 1, {FCVAR_ARCHIVE}, "GPU Saver Show Session time", 0, 1)
local show_velocity = CreateConVar("lithium_gpusaver_info_velocity", 1, {FCVAR_ARCHIVE}, "GPU Saver Show Velocity", 0, 1)

local draw = draw
local surface = surface
local color_white = color_white
local bgcolor, bgcolor_dark = Color(0, 127, 255, 255), Color(24, 24, 32, 255)


hook.Add("PreRender", "LITHIUM_GPUSaver", function()
if system.HasFocus() then return end
cam.Start2D()
local lp = LocalPlayer()
if not dark_mode:GetBool() then
surface.SetDrawColor(0, 127, 255, 255)
else
surface.SetDrawColor(24, 24, 32, 255)
end
surface.DrawRect(0, 0, ScrW(), ScrH())
draw.DrawText("Lithium", "DermaDefault", ScrW() * 0.5, ScrH() * 0.25, color_white, TEXT_ALIGN_CENTER)
draw.DrawText("GPU Saver is ACTIVE", "DermaLarge", ScrW() * 0.5, ScrH() * 0.25 + 18, color_white, TEXT_ALIGN_CENTER)
local scrw,scrh = ScrW(),ScrH()
surface.SetDrawColor(dark_mode:GetBool() and bgcolor_dark or bgcolor)
surface.DrawRect(0, 0, scrw, scrh)
draw.DrawText("Lithium", "DermaDefault", scrw * 0.5, scrh * 0.25, color_white, TEXT_ALIGN_CENTER)
draw.DrawText("GPU Saver is ACTIVE", "DermaLarge", scrw * 0.5, scrh * 0.25 + 18, color_white, TEXT_ALIGN_CENTER)
draw.DrawText("If you believe this is a mistake, send a bug report at https://github.com/Def-Try/Lithium", "DermaDefault",
ScrW() * 0.5, ScrH() - 18, color_white, TEXT_ALIGN_CENTER)
scrw * 0.5, scrh - 18, color_white, TEXT_ALIGN_CENTER)

if draw_info:GetBool() then
local y = ScrH() * 0.25 + 52
local y = scrh * 0.25 + 52
if not lp then
draw.DrawText("Player stats:", "DermaLarge", ScrW() * 0.1, ScrH() * 0.25 + 18, color_white, TEXT_ALIGN_CENTER)
draw.DrawText("< UNAVALIABLE >", "DermaDefault", ScrW() * 0.1, y, color_white, TEXT_ALIGN_CENTER)
draw.DrawText("Player stats:", "DermaLarge", scrw * 0.1, scrh * 0.25 + 18, color_white, TEXT_ALIGN_CENTER)
draw.DrawText("< UNAVALIABLE >", "DermaDefault", scrw * 0.1, y, color_white, TEXT_ALIGN_CENTER)
cam.End2D()
return true
end

draw.DrawText((show_name:GetBool() and lp:Name() or "Player").." stats:", "DermaLarge", ScrW() * 0.1, ScrH() * 0.25 + 18, color_white, TEXT_ALIGN_CENTER)
draw.DrawText((show_name:GetBool() and lp:Name() or "Player").." stats:", "DermaLarge", scrw * 0.1, scrh * 0.25 + 18, color_white, TEXT_ALIGN_CENTER)
if show_health:GetBool() then
draw.DrawText("Health: "..lp:Health().."/"..lp:GetMaxHealth(), "DermaDefault", ScrW() * 0.1, y, color_white, TEXT_ALIGN_CENTER)
draw.DrawText("Armor: "..lp:Armor().."/"..lp:GetMaxArmor(), "DermaDefault", ScrW() * 0.1, y + 18, color_white, TEXT_ALIGN_CENTER)
draw.DrawText("Health: "..lp:Health().."/"..lp:GetMaxHealth(), "DermaDefault", scrw * 0.1, y, color_white, TEXT_ALIGN_CENTER)
draw.DrawText("Armor: "..lp:Armor().."/"..lp:GetMaxArmor(), "DermaDefault", scrw * 0.1, y + 18, color_white, TEXT_ALIGN_CENTER)
y = y + 18 * 2
end
if show_velocity:GetBool() then
draw.DrawText("Velocity: "..tostring(lp:GetVelocity()), "DermaDefault", ScrW() * 0.1, y, color_white, TEXT_ALIGN_CENTER)
draw.DrawText("Velocity: "..tostring(lp:GetVelocity()), "DermaDefault", scrw * 0.1, y, color_white, TEXT_ALIGN_CENTER)
y = y + 18
end
if show_activity:GetBool() then
draw.DrawText("Last mouse move time: "..string.FormattedTime(system.UpTime(), "%02i:%02i"), "DermaDefault", ScrW() * 0.1, y, color_white, TEXT_ALIGN_CENTER)
draw.DrawText("Last mouse move time: "..string.FormattedTime(system.UpTime(), "%02i:%02i"), "DermaDefault", scrw * 0.1, y, color_white, TEXT_ALIGN_CENTER)
y = y + 18
end
if show_session:GetBool() then
local apptime = string.FormattedTime(system.AppTime())
apptime = string.format("%02i:%02i:%02i", apptime.h, apptime.m, apptime.s)
draw.DrawText("Application time (as reported by steam): "..apptime, "DermaDefault", ScrW() * 0.1, y, color_white, TEXT_ALIGN_CENTER)
draw.DrawText("Application time (as reported by steam): "..apptime, "DermaDefault", scrw * 0.1, y, color_white, TEXT_ALIGN_CENTER)
y = y + 18
end
end
Expand Down
1 change: 1 addition & 0 deletions lua/lithium/util.lua
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@ function GetConVarString(name)
end

_G.LITHIUM_Material_old = _G.LITHIUM_Material_old or Material
local LITHIUM_Material_old = LITHIUM_Material_old
function Material(name, words)
if name == "" and words == nil then -- the fuck?
return LITHIUM_Material_old(name, words)
Expand Down