txt2img #13: Negative prompt
Using “negative prompts” is another great way to drive the image, but instead of entering what you want, enter what you DON'T want. They are just as important as normal "prompts" and, as the name suggests, anything in the "negative prompts" list will be objects/features that the AI will try to avoid or reduce its influence on image generation. So they need not be objects; they can also be unwanted styles and/or attributes. Negative prompts give you the same flexibility in prompt order as regular prompts, remember that the ones at the beginning have more weight than those towards the end of the prompt? Well! Soon I will also explain how to modify these weights beyond their position.
There are different schools of thought and, therefore, you will find many pre-packaged "negative prompts". Here some examples:
#1: deformed,blurry,bad anatomy,disfigured,poorly drawn face,mutation,mutated,extra limb,ugly,poorly drawn hands,two heads,child,children,kid, gross,mutilated,disgusting,horrible,scary,evil,old,conjoined,morphed,text,error,glitch,lowres,extra digits,watermark,signature,jpeg artifacts,low quality,unfinished,cropped,siamese twins,robot eyes,loli
Some really sensational ones "bad-artist", for example, which is an "embedding"; these are like "closed" Chinese boxes that do not show the contents and which obviously can cause unwanted creations). Here is the (probable) list, I can't give you any certainty as to its accuracy given that some creators seem reluctant to make their creations public. I am of the opinion, however, that if things are public, someone better can make changes for the better and if this is prevented.. there is no intellectual growth.
#2 (bad-artist): done by bad-artist,ugly,dazed,light blue eyes,3D render,3D game,3D game scene,3D character,mosaic,painting,illustration,digital art,cartoon,anime,doll,toy,photoshop,video game,surreal,sign,3dcg,decorating,decoration,crayon,clipart,cgi,rendered,3d,cartoon face,drawing,cgstation,airbrushed,sketch,render,unreal engine,blender,digital painting,airbrush,pointillism,painting,image compression,distorted,JPEG artifacts,noisy,shaky,pixelated,unclear,artifacts,low detail,low quality,low resolution,distortion,amateur,low res,low-res,cropped body,cut off,basic,boring,botched,unprofessional,draft,failure,fake,image corruption,irregular,uneven,unnatural,contorted,twisted,unappealing,blurry,haze,worst quality,normal quality,bad shadow,poor quality,amateur photography,tasteless,tacky,lacklustre,simple,plain,grainy,out of focus,fuzzy,cropped,uncentered,out of frame,body out of frame,split image,truncated,disjointed,incoherent,disorganized,jumbled,floating,objects,unreal,deformations,kitsch,unattractive,opaque,boring pose,plain background,boring,plain,standard,average,uninventive,derivative,homogenous,uncreative,ineffective,drab,amateur,censor,censored,censor_bar,text,font,ui,error,watermark,username,signature,QR code,bar code,copyright,logos,HUD,tiling,label,watermarks,calligraphy,kanji,hanzi,hangul,hanza,chu,nom,latin,arabic,cyrillic,symbols,alphanumeric,unicode,script,artist name,logo,censor,high contrast,low contrast,High pass filter,watermarked,monotone,smooth,blur,vignette,filter,writing,oversaturation,over saturation,over shadow,gaussian,blurred,weird colors,blurred,grain,bad art,black-white,posterization,colour banding,grayscale,monochrome,b&w,oversaturated,black and white,no color,greyscale,poorly drawn,messy drawing,bad proportions,gross proportions,imperfection,dehydrated,misshappen,duplicate,double,clones,twins,brothers,same face,repeated person,bad anatomy,anatomical nonsense,malformed,misshaped body,uncoordinated body,unnatural body,long body,liquid body,deformed,mutilated,mutation,mutated,tumor,deformed body,lopsided,mangled,skin defect,disfigured,conjoined,connected,intertwined,hooked,bad body,amputation,siamese,cropped head,bad framing,out of shot,awkward poses,unusual poses,smooth skin,misshapen,gross proportions,poorly drawn face,bad face,fused face,cloned face,big face,long face,dirty face,long neck,warped face,loose face,crooked face,asymetric jaw,asymmetric chin,fake face,deformed face,extra heads,big forehead,head cut off,ugly hair,bald,poorly drawn hair,bad drawn eyes,asymmetric eyes,unaligned eyes,crooked eyes,closed eyes,looking_away,fused eyes,poorly drawn eyes,extra eye,cross eyed,imperfect eyes,cataracts,glaucoma,strabismus,heterochromia,woobly iris,square iris,weird eyes,distorted eyes,deformed glasses,extra eyes,bright blue eyes,cross-eyed,blurry eyes,poorly drawn eyes,fused eyes,blind,red eyes,bad eyes,ugly eyes,dead eyes,bad drawn nose,fused nose,poorly drawn nose,extra nose,bad mouth,fused mouth,poorly drawn mouth,big mouth,mouth cake,cracked mouth,crooked lips,dirty teeth,yellow teeth,ugly teeth,liquid tongue,colorful tongue,black tongue,bad tongue,tongue within mouth,too long tongue,crooked teeth,yellow teeth,long teeth,bad teeth,fused ears,bad ears,poorly drawn ears,extra ears,liquid ears,heavy ears,missing ears,asymmetric ears,big ears,ugly ears,bad collarbone,fused collarbone,missing collarbone,liquid collarbone,missing limb,malformed limbs,extra limb,floating limbs,disconnected limbs,extra limb,amputee,extra limbs,different limbs proportions,decapitated limbs,mutated hands,poorly drawn hands,malformed hands,bad hands,fused hands,missing hand,extra hand,mangled hands,more than 1 left hand,more than 1 right hand,less than two hands appearing in the image,cropped hands,out of frame hands,thousand hands,mutated hands and fingers,missing hands,distorted hands,deformed hands,imperfect hands,undetailed hands,fused fingers,mutated fingers,(tentacle finger),missing fingers,one hand with more than 5 fingers,disfigured hands,one hand with less than 5 fingers,one hand with more than 5 digit,one hand with less than 5 digit,extra digit,fewer digits,fused digit,missing digit,bad digit,liquid digit,extra fingers,too many fingers,bad gloves,poorly drawn gloves,fused gloves,disappearing arms,short arm,missing arms,extra arms,less than two arms appearing in the image,cropped arms,out of frame arms,long arms,deformed arms,short arm,different arms proportions,multiple belly buttons,missing belly button,broken legs,disappearing legs,missing legs,extra legs,more than 2 legs,huge thighs,disappearing thigh,missing thighs,extra thighs,more than 2 thighs,deformed legs,bad thigh gap,missing thigh gap,fused thigh gap,liquid thigh gap,poorly drawn thigh gap,huge calf,disappearing calf,missing calf,extra calf,fused calf,bad knee,extra knee,broken legs,different legs proportions,mutated feet,poorly drawn feet,malformed feet,bad feet,fused feet,missing feet,mangled feet,more than 1 left foot,more than 1 right foot,less than two foot appearing in the image,cropped feet,thousand feet,mutated feet and fingers,missing feet,distorted feet,deformed feet,imperfect feet,undetailed feet,ugly feet,extra foot,long toes,extra shoes,bad shoes,fused shoes,more than two shoes,poorly drawn shoes,fused cloth,poorly drawn cloth,safety panties,safety knickers,dirty panties,fused panties,poorly drawn panties,bad panties,dirty pantie,multiple breasts,fused breasts,bad breasts,huge breasts,poorly drawn breasts,extra breasts,liquid breasts,missing breasts,more than 2 nipples,missing nipples,different nipples,fused nipples,bad nipples,poorly drawn nipples,black nipples,colorful nipples,unnatural nipples,without form nipples,withered nipples,unerect nipples,extra nipples,more than two nipples,imperfect nipples,liquid tentacles,bad tentacles,poorly drawn tentacles,split tentacles,fused tentacles,bad tails,bad animal ears,poorly drawn animal ears,extra animal ears,liquid animal ears,heavy animal ears,missing animal ears,fused animal ears,poorly drawn hairs,fused hairs,bad hairs,bad crotch,bad crotch seam,fused crotch,poorly drawn crotch,fused seam,poorly drawn crotch seam,futa,she-male,bad buttocks,poorly drawn buttocks,fused buttocks,missing buttocks,huge haunch,bad asshole,poorly drawn asshole,fused asshole,missing asshole,bad anus,fused anus,poorly drawn anus,missing anus,bad camel toe,colorful camel toe,bad pussy,missing clitoris,bad clitoris,fused clitoris,colorful clitoris,black clitoris,liquid clitoris,poorly drawn pussy,fused pussy,mutated vagina,bad penis,poorly drawn penis,fused penis,missing penis,tiny penis,small penis,splitted penis,missing testicles,no glans,imperfect glans,ugly glans,unrealistic penis,unerect penis,penis with no glans,thin penis,poorly drawn glans,bad glans,bad cum,poorly drawn cum,fused cum
I think it is useless to tell you that since this list contains "3D character" if you want to create Disney/Pixar style characters you will NOT be able to do so, given that embedding drastically reduces your chance of obtaining it (or prevents it altogether).
Certainly a work of this magnitude will make people think (lazy people who will not read the content even if made public) that it is a work of high level... try to read it even distractedly and you will see the high content of nonsense (so much to make embedding necessary as a "closed" Chinese box).
Another important thing to say: AI has never made me an ugly person and therefore putting the word "ugly" in the "negative prompt" makes no sense! Deformities happen due to the incorrect resolution we want of our image; remember #12 where I explain the resolutions quite comprehensively? I told you that if we want 50% more of the training resolution we do it at our own risk (e.g. SD15 is 512x512 and if we want 512x768 we have stretched the image vertically by 50% and this is the cause of duplications, deformations etc. ). Furthermore, there was such a rush to train the models (checkpoints) that they forced AI to swallow up all kinds of rubbish. Result? We need to fix this mistake that is NOT possible to fix! If AI has decided to make a hand with six fingers or four, it is impossible to make it make it with five. It will only be possible to hide it or completely avoid drawing it!