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gradio_app.py
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import gradio as gr
import os
import imageio
import numpy as np
from einops import rearrange
from demo.img_gen import img_gen
from demo.mesh_recon import mesh_reconstruction
from demo.relighting_gen import relighting_gen
from demo.render_hints import render_hint_images_btn_func
from demo.rm_bg import rm_bg
with gr.Blocks(title="DiLightNet Demo") as demo:
gr.Markdown("""# DiLightNet: Fine-grained Lighting Control for Diffusion-based Image Generation
## A demo for generating images under point/environmantal lighting using DiLightNet. For full usage (video generation & arbitary lighting condition), please refer to our [GitHub repository](https://github.com/iamNCJ/DiLightNet)""")
with gr.Row():
# 1. Reference Image Input / Generation
with gr.Column(variant="panel"):
gr.Markdown("## Step 1. Input or Generate Reference Image")
input_image = gr.Image(height=512, width=512, label="Input Image", interactive=True)
with gr.Accordion("Generate Image", open=False):
with gr.Group():
prompt = gr.Textbox(value="", label="Prompt", lines=3, placeholder="Input prompt here")
with gr.Row():
seed = gr.Number(value=42, label="Seed", interactive=True)
steps = gr.Number(value=20, label="Steps", interactive=True)
cfg = gr.Number(value=7.5, label="CFG", interactive=True)
down_from_768 = gr.Checkbox(label="Downsample from 768", value=True)
with gr.Row():
generate_btn = gr.Button(value="Generate")
generate_btn.click(fn=img_gen, inputs=[prompt, seed, steps, cfg, down_from_768], outputs=[input_image])
gr.Examples(
examples=[os.path.join("examples/provisional_img", i) for i in os.listdir("examples/provisional_img")],
inputs=[input_image],
examples_per_page=8,
)
# 2. Background Removal
with gr.Column(variant="panel"):
gr.Markdown("## Step 2. Remove Background")
with gr.Tab("Masked Image"):
masked_image = gr.Image(height=512, width=512, label="Masked Image", interactive=True)
with gr.Tab("Mask"):
mask = gr.Image(height=512, width=512, label="Mask", interactive=False)
use_sam = gr.Checkbox(label="Use SAM for Refinement", value=False)
rm_bg_btn = gr.Button(value="Remove Background")
rm_bg_btn.click(fn=rm_bg, inputs=[input_image, use_sam], outputs=[masked_image, mask])
# 3. Depth Estimation & Mesh Reconstruction
with gr.Column(variant="panel"):
gr.Markdown("## Step 3. Depth Estimation & Mesh Reconstruction")
mesh = gr.Model3D(label="Mesh Reconstruction", clear_color=(1.0, 1.0, 1.0, 1.0), interactive=True)
with gr.Column():
with gr.Accordion("Options", open=False):
with gr.Group():
remove_edges = gr.Checkbox(label="Remove Occlusion Edges", value=False)
fov = gr.Number(value=55., label="FOV", interactive=False)
mask_threshold = gr.Slider(value=25., label="Mask Threshold", minimum=0., maximum=255., step=1.)
depth_estimation_btn = gr.Button(value="Estimate Depth")
def mesh_reconstruction_wrapper(image, mask, remove_edges, mask_threshold,
progress=gr.Progress(track_tqdm=True)):
return mesh_reconstruction(image, mask, remove_edges, None, mask_threshold)
depth_estimation_btn.click(
fn=mesh_reconstruction_wrapper,
inputs=[input_image, mask, remove_edges, mask_threshold],
outputs=[mesh, fov],
)
with gr.Row():
with gr.Column(variant="panel"):
gr.Markdown("## Step 4. Render Hints")
hint_image = gr.Image(label="Hint Image", height=512, width=512)
res_folder_path = gr.Textbox("", visible=False)
is_env_lighting = gr.Checkbox(label="Use Environmental Lighting", value=True, interactive=False, visible=False)
with gr.Tab("Environmental Lighting"):
env_map_preview = gr.Image(label="Environment Map Preview", height=256, width=512, interactive=False, show_download_button=False)
env_map_path = gr.Text(interactive=False, visible=False, value="examples/env_map/grace.exr")
env_rotation = gr.Slider(value=0., label="Environment Rotation", minimum=0., maximum=360., step=0.5)
env_examples = gr.Examples(
examples=[[os.path.join("examples/env_map_preview", i), os.path.join("examples/env_map", i).replace("png", "exr")] for i in os.listdir("examples/env_map_preview")],
inputs=[env_map_preview, env_map_path],
examples_per_page=20,
)
render_btn_env = gr.Button(value="Render Hints")
def render_wrapper_env(mesh, fov, env_map_path, env_rotation, progress=gr.Progress(track_tqdm=True)):
env_map_path = os.path.abspath(env_map_path)
res_path = render_hint_images_btn_func(mesh, float(fov), [(0, 0, 0)], env_map=env_map_path, env_start_azi=env_rotation / 360.)
hint_files = [res_path + '/hint00' + mat for mat in ["_diffuse.png", "_ggx0.05.png", "_ggx0.13.png", "_ggx0.34.png"]]
hints = []
for hint_file in hint_files:
hint = imageio.v3.imread(hint_file)
hints.append(hint)
hints = rearrange(np.stack(hints), '(n1 n2) h w c -> (n1 h) (n2 w) c', n1=2, n2=2)
return hints, res_path, True
render_btn_env.click(
fn=render_wrapper_env,
inputs=[mesh, fov, env_map_path, env_rotation],
outputs=[hint_image, res_folder_path, is_env_lighting]
)
with gr.Tab("Point Lighting"):
pl_pos_x = gr.Slider(value=3., label="Point Light X", minimum=-5., maximum=5., step=0.01)
pl_pos_y = gr.Slider(value=1., label="Point Light Y", minimum=-5., maximum=5., step=0.01)
pl_pos_z = gr.Slider(value=3., label="Point Light Z", minimum=-5., maximum=5., step=0.01)
power = gr.Slider(value=1000., label="Point Light Power", minimum=0., maximum=2000., step=1.)
render_btn_pl = gr.Button(value="Render Hints")
def render_wrapper_pl(mesh, fov, pl_pos_x, pl_pos_y, pl_pos_z, power,
progress=gr.Progress(track_tqdm=True)):
res_path = render_hint_images_btn_func(mesh, float(fov), [(pl_pos_x, pl_pos_y, pl_pos_z)], power)
hint_files = [res_path + '/hint00' + mat for mat in ["_diffuse.png", "_ggx0.05.png", "_ggx0.13.png", "_ggx0.34.png"]]
hints = []
for hint_file in hint_files:
hint = imageio.v3.imread(hint_file)
hints.append(hint)
hints = rearrange(np.stack(hints), '(n1 n2) h w c -> (n1 h) (n2 w) c', n1=2, n2=2)
return hints, res_path, False
render_btn_pl.click(
fn=render_wrapper_pl,
inputs=[mesh, fov, pl_pos_x, pl_pos_y, pl_pos_z, power],
outputs=[hint_image, res_folder_path, is_env_lighting]
)
with gr.Column(variant="panel"):
gr.Markdown("## Step 5. Control Lighting!")
res_image = gr.Image(label="Result Image", height=512, width=512)
with gr.Group():
relighting_prompt = gr.Textbox(value="", label="Appearance Text Prompt", lines=3,
placeholder="Input prompt here",
interactive=True)
# several example prompts
with gr.Row():
metallic_prompt_btn = gr.Button(value="Metallic", size="sm")
specular_prompt_btn = gr.Button(value="Specular", size="sm")
very_specular_prompt_btn = gr.Button(value="Very Specular", size="sm")
metallic_prompt_btn.click(fn=lambda x: x + " metallic", inputs=[relighting_prompt], outputs=[relighting_prompt])
specular_prompt_btn.click(fn=lambda x: x + " specular", inputs=[relighting_prompt], outputs=[relighting_prompt])
very_specular_prompt_btn.click(fn=lambda x: x + " very specular", inputs=[relighting_prompt], outputs=[relighting_prompt])
with gr.Row():
clear_prompt_btn = gr.Button(value="Clear")
reuse_btn = gr.Button(value="Reuse Provisional Image Generation Prompt")
clear_prompt_btn.click(fn=lambda x: "", inputs=[relighting_prompt], outputs=[relighting_prompt])
reuse_btn.click(fn=lambda x: x, inputs=[prompt], outputs=[relighting_prompt])
with gr.Accordion("Options", open=False):
relighting_seed = gr.Number(value=3407, label="Seed", interactive=True)
relighting_steps = gr.Number(value=20, label="Steps", interactive=True)
relighting_cfg = gr.Number(value=3.0, label="CFG", interactive=True)
relighting_generate_btn = gr.Button(value="Generate")
def gen_relighting_image(masked_image, mask, res_folder_path, relighting_prompt, relighting_seed,
relighting_steps, relighting_cfg, do_env_inpainting,
progress=gr.Progress(track_tqdm=True)):
relighting_gen(
masked_ref_img=masked_image,
mask=mask,
cond_path=res_folder_path,
frames=1,
prompt=relighting_prompt,
steps=int(relighting_steps),
seed=int(relighting_seed),
cfg=relighting_cfg
)
relit_img = imageio.v3.imread(res_folder_path + '/relighting00_0.png')
if do_env_inpainting:
bg = imageio.v3.imread(res_folder_path + f'/bg00.png') / 255.
else:
bg = np.zeros_like(relit_img)
relit_img = relit_img / 255.
mask_for_bg = imageio.v3.imread(res_folder_path + '/hint00_diffuse.png')[..., -1:] / 255.
relit_img = relit_img * mask_for_bg + bg * (1. - mask_for_bg)
relit_img = (relit_img * 255).clip(0, 255).astype(np.uint8)
return relit_img
relighting_generate_btn.click(fn=gen_relighting_image,
inputs=[masked_image, mask, res_folder_path, relighting_prompt, relighting_seed,
relighting_steps, relighting_cfg, is_env_lighting],
outputs=[res_image])
if __name__ == '__main__':
demo.queue().launch(server_name="0.0.0.0", share=True)