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# Sylvia Ritter. AKA: by silvery trait
# variable values
$pretrained_model_name_or_path = "D:\models\v1-5-pruned-mse-vae.ckpt"
$train_dir = "D:\dreambooth\train_lego"
$training_folder = "raw"
$learning_rate = 5e-6
$dataset_repeats = 40
$train_batch_size = 8
$epoch = 4
$save_every_n_epochs=1
$mixed_precision="bf16"
$num_cpu_threads_per_process=6
$max_resolution = "512,512"
# You should not have to change values past this point
# stop script on error
$ErrorActionPreference = "Stop"
# activate venv
.\venv\Scripts\activate
# Usefull to create base caption that will be augmented on a per image basis
$caption="lego set"
$files = Get-ChildItem $train_dir\$training_folder\"*.*" -Include *.png,*.jpg,*.webp
foreach ($file in $files) {New-Item -ItemType file -Path $train_dir\$training_folder -Name "$($file.BaseName).txt" -Value $caption}
# create caption json file
python D:\kohya_ss\diffusers_fine_tuning\merge_captions_to_metadata-ber.py `
--caption_extention ".txt" $train_dir"\"$training_folder $train_dir"\meta_cap.json"
# create images buckets
python D:\kohya_ss\diffusers_fine_tuning\prepare_buckets_latents-ber.py `
$train_dir"\"$training_folder `
$train_dir"\meta_cap.json" `
$train_dir"\meta_lat.json" `
$pretrained_model_name_or_path `
--batch_size 4 --max_resolution $max_resolution --mixed_precision fp16
# Get number of valid images
$image_num = Get-ChildItem "$train_dir\$training_folder" -Recurse -File -Include *.npz | Measure-Object | %{$_.Count}
$repeats = $image_num * $dataset_repeats
# calculate max_train_set
$max_train_set = [Math]::Ceiling($repeats / $train_batch_size * $epoch)
accelerate launch --num_cpu_threads_per_process $num_cpu_threads_per_process D:\kohya_ss\diffusers_fine_tuning\fine_tune.py `
--pretrained_model_name_or_path=$pretrained_model_name_or_path `
--in_json $train_dir"\meta_lat.json" `
--train_data_dir=$train_dir"\"$training_folder `
--output_dir=$train_dir"\fine_tuned2" `
--train_batch_size=$train_batch_size `
--dataset_repeats=$dataset_repeats `
--learning_rate=$learning_rate `
--max_train_steps=$max_train_set `
--use_8bit_adam --xformers `
--mixed_precision=$mixed_precision `
--save_every_n_epochs=$save_every_n_epochs `
--train_text_encoder `
--save_precision="fp16"
# accelerate launch --num_cpu_threads_per_process $num_cpu_threads_per_process D:\kohya_ss\diffusers_fine_tuning\fine_tune_v1-ber.py `
# --pretrained_model_name_or_path=$train_dir"\fine_tuned\last.ckpt" `
# --in_json $train_dir"\meta_lat.json" `
# --train_data_dir=$train_dir"\"$training_folder `
# --output_dir=$train_dir"\fine_tuned2" `
# --train_batch_size=$train_batch_size `
# --dataset_repeats=$([Math]::Ceiling($dataset_repeats / 2)) `
# --learning_rate=$learning_rate `
# --max_train_steps=$([Math]::Ceiling($max_train_set / 2)) `
# --use_8bit_adam --xformers `
# --mixed_precision=$mixed_precision `
# --save_every_n_epochs=$save_every_n_epochs `
# --save_half
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