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#img_gen_modal.py
import modal
import sys
import os
import random
from datetime import datetime
import random
import io
@app.function(
image=image,
#gpu="T4",
timeout=600
)
def generate_image(prompt_alias, team_color, model_alias, custom_prompt, height=360, width=640,
num_inference_steps=20, guidance_scale=2.0, seed=-1):
import torch
from diffusers import StableDiffusionPipeline
# Find the selected prompt and model
try:
prompt = next(p for p in prompts if p["alias"] == prompt_alias)["text"]
model_name = next(m for m in models if m["alias"] == model_alias)["name"]
except StopIteration:
return None, "ERROR: Invalid prompt or model selected."
# Determine the enemy color
enemy_color = "blue" if team_color.lower() == "red" else "red"
# Print the original prompt and dynamic values for debugging
print("Original Prompt:")
print(prompt)
print(f"Enemy Color: {enemy_color}")
print(f"Team Color: {team_color.lower()}")
# Format the prompt
prompt = prompt.format(team_color=team_color.lower(), enemy_color=enemy_color)
# Print the formatted prompt for debugging
print("\nFormatted Prompt:")
print(prompt)
# Append custom prompt if provided
if custom_prompt and len(custom_prompt.strip()) > 0:
prompt += " " + custom_prompt.strip()
# Randomize seed if needed
if seed == -1:
seed = random.randint(0, 1000000)
# Initialize the pipeline
pipe = StableDiffusionPipeline.from_pretrained(
model_name,
torch_dtype=torch.float16,
use_safetensors=True,
variant="fp16"
)
pipe.to("cpu")
# Generate the image
try:
image = pipe(
prompt,
guidance_scale=guidance_scale,
num_inference_steps=num_inference_steps,
width=width,
height=height,
generator=torch.Generator("cuda").manual_seed(seed)
).images[0]
# Convert PIL image to bytes
img_byte_arr = io.BytesIO()
image.save(img_byte_arr, format='PNG')
img_byte_arr = img_byte_arr.getvalue()
except Exception as e:
return None, f"ERROR: Failed to generate image. Details: {e}"
# Save the image with a timestamped filename
timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
output_filename = f"{timestamp}_{model_alias.replace(' ', '_').lower()}_{prompt_alias.replace(' ', '_').lower()}_{team_color.lower()}.png"
try:
image.save(output_filename)
except Exception as e:
return img_byte_arr, "Image generated successfully!"
except Exception as e:
return None, f"ERROR: Failed to generate image. Details: {e}"
return output_filename, "Image generated successfully!" |