Scrapper (Fallout 4)

Scrapper is an Intelligence perk .
==Effects==
Taking ranks of this perk allows for a greater variety of components to be gained when scrapping weapons, armor, and settlement objects in a workshop. Higher ranks allow rarer components to be gained, in addition to highlighting items made of components which can be marked for search in the workshop, and rank 3 approximately doubles (in fact, gives either double or double plus 1 unit) the yield. The actual effects of this perk depend on the materials that went into the object: their quantity, rarity, and scrap scalar. The rarity and scrap scalar for each material can be found below. The rarity and scrap scalar are related: zero yield is true if and only if the scalar is 0, rare and uncommon always have a scalar of 0.25 or 1/4, and a scalar of 0.5 or 1/2 means the rarity is common; the only outliers are ceramic, concrete, leather, and plastic, which have common rarity but a scalar of 0.25. The formula for what is obtained when the player scraps an item iterates over each material that went into making it, giving the player some of each:
: \begin{align}
RankMul &= \begin{cases}
1 &\text{if } Rank &\le 2 \\
2 &\text{if } Rank &= 3 \\
\end{cases} \\
Return &= \left\lfloor Quantity \times Scalar \times RankMul \right\rfloor \text{if }
\begin{cases}
Rarity \text{ is Common} \\
Rarity \text{ is Uncommon and }Rank \ge 1 \\
Rarity \text{ is Rare and }Rank \ge 2 \\
\end{cases} \\
\end{align}
==Ranks==
Rank	Requirements 	Description 	Form ID
1 	INT 5 	Waste not, want not! You can salvage uncommon components like screws, aluminum, and copper when scrapping weapons and armor. 	
2 	INT 5, LVL 23	You can salvage rare components like circuitry, nuclear material, and fiber optics when scrapping weapons and armor. Items with favorited components are highlighted	
3 	INT 5, LVL 40	You get more from salvaging. 	
==Notes==
* Despite the perk description only mentioning weapons and armor, it also allows additional materials to be salvaged from scrapped settlement objects. For instance, a baseball player statue that requires 10 copper to build normally yields nothing when scrapped, but having rank 1 of this perk allows the player to salvage 2: \left\lfloor \frac{10}{4} \right\rfloor copper from it, and having rank 3 increases the yield to 5: \left\lfloor \frac{10 \times 2}{4} \right\rfloor.
* Despite its broad description, rank 3 only doubles the amount of uncommon materials recovered (aluminum, copper, cork, fiberglass, gears, glass, lead, screw, spring).
* Modified weapons will produce additional components
* Certain mods and prefixes indicate whether some components may be scrapped from them, while other components are linked to the base weapon. For instance, weapons with the "muzzled" or "silenced" prefix will nearly always yield aluminum (though the quantity depends on the base weapon), while wood and copper are tied to the base weapon (double barrel and combat shotguns and hunting rifles in the case of wood, and pipe weapons for copper), with the modifications determining the quantity. Unlike other resources, wood is often present with less technical mods, with the "short" versions often providing the most.
** The same applies to armor, but the effect is less dramatic (significantly less-common modifications are needed to extract the more uncommon/rare components).
* The highlighting effect of rank 2 applies to junk and containers containing junk with components that have been marked for search only, not to weapons and armor with and/or without mods with tagged components.
* Wood, steel, rubber, cloth, Bone, plastic, leather and concrete can be recovered without this perk. Spring, screw, lead, glass, gears, fiberglass, cork, copper and aluminum require rank 1; Silver, fiber optics, nuclear material, gold, crystal, circuitry, ballistic fiber and asbestos require rank 2. Adhesive and oil cannot be recovered; Acid, antiseptic, ceramic and fertilizer are not used in any scrappable items.
==Bugs==
 If the second rank of the Scrapper perk is acquired, highlighted items can be seen through the screen of the Pip-Boy.
Category:Fallout 4 perks
de:Wiederverwerter (Extra)
fr:Recycleur
ru:Драчун