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import gradio as gr
from modules import sd_models, sd_vae, errors, extras, call_queue
from modules.ui_components import FormRow
from modules.ui_common import create_refresh_button
def update_interp_description(value):
interp_description_css = "<p style='margin-bottom: 2.5em'>{}</p>"
interp_descriptions = {
"No interpolation": interp_description_css.format("No interpolation will be used. Requires one model; A. Allows for format conversion and VAE baking."),
"Weighted sum": interp_description_css.format("A weighted sum will be used for interpolation. Requires two models; A and B. The result is calculated as A * (1 - M) + B * M"),
"Add difference": interp_description_css.format("The difference between the last two models will be added to the first. Requires three models; A, B and C. The result is calculated as A + (B - C) * M")
}
return interp_descriptions[value]
def modelmerger(*args):
try:
results = extras.run_modelmerger(*args)
except Exception as e:
errors.report("Error loading/saving model file", exc_info=True)
sd_models.list_models() # to remove the potentially missing models from the list
return [*[gr.Dropdown.update(choices=sd_models.checkpoint_tiles()) for _ in range(4)], f"Error merging checkpoints: {e}"]
return results
class UiCheckpointMerger:
def __init__(self):
with gr.Blocks(analytics_enabled=False) as modelmerger_interface:
with gr.Row().style(equal_height=False):
with gr.Column(variant='compact'):
self.interp_description = gr.HTML(value=update_interp_description("Weighted sum"), elem_id="modelmerger_interp_description")
with FormRow(elem_id="modelmerger_models"):
self.primary_model_name = gr.Dropdown(sd_models.checkpoint_tiles(), elem_id="modelmerger_primary_model_name", label="Primary model (A)")
create_refresh_button(self.primary_model_name, sd_models.list_models, lambda: {"choices": sd_models.checkpoint_tiles()}, "refresh_checkpoint_A")
self.secondary_model_name = gr.Dropdown(sd_models.checkpoint_tiles(), elem_id="modelmerger_secondary_model_name", label="Secondary model (B)")
create_refresh_button(self.secondary_model_name, sd_models.list_models, lambda: {"choices": sd_models.checkpoint_tiles()}, "refresh_checkpoint_B")
self.tertiary_model_name = gr.Dropdown(sd_models.checkpoint_tiles(), elem_id="modelmerger_tertiary_model_name", label="Tertiary model (C)")
create_refresh_button(self.tertiary_model_name, sd_models.list_models, lambda: {"choices": sd_models.checkpoint_tiles()}, "refresh_checkpoint_C")
self.custom_name = gr.Textbox(label="Custom Name (Optional)", elem_id="modelmerger_custom_name")
self.interp_amount = gr.Slider(minimum=0.0, maximum=1.0, step=0.05, label='Multiplier (M) - set to 0 to get model A', value=0.3, elem_id="modelmerger_interp_amount")
self.interp_method = gr.Radio(choices=["No interpolation", "Weighted sum", "Add difference"], value="Weighted sum", label="Interpolation Method", elem_id="modelmerger_interp_method")
self.interp_method.change(fn=update_interp_description, inputs=[self.interp_method], outputs=[self.interp_description])
with FormRow():
self.checkpoint_format = gr.Radio(choices=["ckpt", "safetensors"], value="safetensors", label="Checkpoint format", elem_id="modelmerger_checkpoint_format")
self.save_as_half = gr.Checkbox(value=False, label="Save as float16", elem_id="modelmerger_save_as_half")
self.save_metadata = gr.Checkbox(value=True, label="Save metadata (.safetensors only)", elem_id="modelmerger_save_metadata")
with FormRow():
with gr.Column():
self.config_source = gr.Radio(choices=["A, B or C", "B", "C", "Don't"], value="A, B or C", label="Copy config from", type="index", elem_id="modelmerger_config_method")
with gr.Column():
with FormRow():
self.bake_in_vae = gr.Dropdown(choices=["None"] + list(sd_vae.vae_dict), value="None", label="Bake in VAE", elem_id="modelmerger_bake_in_vae")
create_refresh_button(self.bake_in_vae, sd_vae.refresh_vae_list, lambda: {"choices": ["None"] + list(sd_vae.vae_dict)}, "modelmerger_refresh_bake_in_vae")
with FormRow():
self.discard_weights = gr.Textbox(value="", label="Discard weights with matching name", elem_id="modelmerger_discard_weights")
with gr.Row():
self.modelmerger_merge = gr.Button(elem_id="modelmerger_merge", value="Merge", variant='primary')
with gr.Column(variant='compact', elem_id="modelmerger_results_container"):
with gr.Group(elem_id="modelmerger_results_panel"):
self.modelmerger_result = gr.HTML(elem_id="modelmerger_result", show_label=False)
self.blocks = modelmerger_interface
def setup_ui(self, dummy_component, sd_model_checkpoint_component):
self.modelmerger_merge.click(fn=lambda: '', inputs=[], outputs=[self.modelmerger_result])
self.modelmerger_merge.click(
fn=call_queue.wrap_gradio_gpu_call(modelmerger, extra_outputs=lambda: [gr.update() for _ in range(4)]),
_js='modelmerger',
inputs=[
dummy_component,
self.primary_model_name,
self.secondary_model_name,
self.tertiary_model_name,
self.interp_method,
self.interp_amount,
self.save_as_half,
self.custom_name,
self.checkpoint_format,
self.config_source,
self.bake_in_vae,
self.discard_weights,
self.save_metadata,
],
outputs=[
self.primary_model_name,
self.secondary_model_name,
self.tertiary_model_name,
sd_model_checkpoint_component,
self.modelmerger_result,
]
)
# Required as a workaround for change() event not triggering when loading values from ui-config.json
self.interp_description.value = update_interp_description(self.interp_method.value)
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