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app.py

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+import gradio as gr
+import spaces
+from gradio_litmodel3d import LitModel3D
+import os
+import shutil
+import random
+import uuid
+from datetime import datetime
+from diffusers import DiffusionPipeline
+
+os.environ['SPCONV_ALGO'] = 'native'
+from typing import *
+import torch
+import numpy as np
+import imageio
+from easydict import EasyDict as edict
+from PIL import Image
+from trellis.pipelines import TrellisImageTo3DPipeline
+from trellis.representations import Gaussian, MeshExtractResult
+from trellis.utils import render_utils, postprocessing_utils
+
+NUM_INFERENCE_STEPS = 8
+
+huggingface_token = os.getenv("HUGGINGFACE_TOKEN")
+# Constants
+MAX_SEED = np.iinfo(np.int32).max
+TMP_DIR = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'tmp')
+os.makedirs(TMP_DIR, exist_ok=True)
+
+# Create permanent storage directory for Flux generated images
+SAVE_DIR = "saved_images"
+if not os.path.exists(SAVE_DIR):
+    os.makedirs(SAVE_DIR, exist_ok=True)
+
+# Initialize device
+device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
+
+# Initialize Flux pipeline
+flux_pipeline = DiffusionPipeline.from_pretrained(
+    "black-forest-labs/FLUX.1-dev",
+    torch_dtype=torch.float16,
+    variant="fp16",
+    use_safetensors=True
+).to(device)
+
+# Initialize TRELLIS pipeline
+trellis_pipeline = TrellisImageTo3DPipeline.from_pretrained(
+    "JeffreyXiang/TRELLIS-image-large",
+    torch_dtype=torch.float16,
+    variant="fp16",
+    use_safetensors=True
+).to(device)
+
+def start_session(req: gr.Request):
+    user_dir = os.path.join(TMP_DIR, str(req.session_hash))
+    os.makedirs(user_dir, exist_ok=True)
+
+def end_session(req: gr.Request):
+    user_dir = os.path.join(TMP_DIR, str(req.session_hash))
+    shutil.rmtree(user_dir)
+
+def preprocess_image(image: Image.Image) -> Image.Image:
+    processed_image = trellis_pipeline.preprocess_image(image)
+    return processed_image
+
+def pack_state(gs: Gaussian, mesh: MeshExtractResult) -> dict:
+    return {
+        'gaussian': {
+            **gs.init_params,
+            '_xyz': gs._xyz.cpu().numpy(),
+            '_features_dc': gs._features_dc.cpu().numpy(),
+            '_scaling': gs._scaling.cpu().numpy(),
+            '_rotation': gs._rotation.cpu().numpy(),
+            '_opacity': gs._opacity.cpu().numpy(),
+        },
+        'mesh': {
+            'vertices': mesh.vertices.cpu().numpy(),
+            'faces': mesh.faces.cpu().numpy(),
+        },
+    }
+
+def unpack_state(state: dict) -> Tuple[Gaussian, edict]:
+    gs = Gaussian(
+        aabb=state['gaussian']['aabb'],
+        sh_degree=state['gaussian']['sh_degree'],
+        mininum_kernel_size=state['gaussian']['mininum_kernel_size'],
+        scaling_bias=state['gaussian']['scaling_bias'],
+        opacity_bias=state['gaussian']['opacity_bias'],
+        scaling_activation=state['gaussian']['scaling_activation'],
+    )
+    gs._xyz = torch.tensor(state['gaussian']['_xyz'], device='cuda')
+    gs._features_dc = torch.tensor(state['gaussian']['_features_dc'], device='cuda')
+    gs._scaling = torch.tensor(state['gaussian']['_scaling'], device='cuda')
+    gs._rotation = torch.tensor(state['gaussian']['_rotation'], device='cuda')
+    gs._opacity = torch.tensor(state['gaussian']['_opacity'], device='cuda')
+    
+    mesh = edict(
+        vertices=torch.tensor(state['mesh']['vertices'], device='cuda'),
+        faces=torch.tensor(state['mesh']['faces'], device='cuda'),
+    )
+    
+    return gs, mesh
+
+def get_seed(randomize_seed: bool, seed: int) -> int:
+    return np.random.randint(0, MAX_SEED) if randomize_seed else seed
+
+@spaces.GPU
+def generate_flux_image(
+    prompt: str,
+    seed: int,
+    randomize_seed: bool,
+    width: int,
+    height: int,
+    guidance_scale: float,
+    progress: gr.Progress = gr.Progress(track_tqdm=True),
+) -> Image.Image:
+    """Generate image using Flux pipeline"""
+    if randomize_seed:
+        seed = random.randint(0, MAX_SEED)
+    generator = torch.Generator(device=device).manual_seed(seed)
+    prompt = "wbgmsst, " + prompt + ", 3D isometric, white background"
+    image = flux_pipeline(
+        prompt=prompt,
+        guidance_scale=guidance_scale,
+        num_inference_steps=NUM_INFERENCE_STEPS,
+        width=width,
+        height=height,
+        generator=generator,
+    ).images[0]
+    
+    # Save the generated image
+    timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
+    unique_id = str(uuid.uuid4())[:8]
+    filename = f"{timestamp}_{unique_id}.png"
+    filepath = os.path.join(SAVE_DIR, filename)
+    image.save(filepath)
+    
+    return image
+
+@spaces.GPU
+def image_to_3d(
+    image: Image.Image,
+    seed: int,
+    ss_guidance_strength: float,
+    ss_sampling_steps: int,
+    slat_guidance_strength: float,
+    slat_sampling_steps: int,
+    req: gr.Request,
+) -> Tuple[dict, str]:
+    user_dir = os.path.join(TMP_DIR, str(req.session_hash))
+    outputs = trellis_pipeline.run(
+        image,
+        seed=seed,
+        formats=["gaussian", "mesh"],
+        preprocess_image=False,
+        sparse_structure_sampler_params={
+            "steps": ss_sampling_steps,
+            "cfg_strength": ss_guidance_strength,
+        },
+        slat_sampler_params={
+            "steps": slat_sampling_steps,
+            "cfg_strength": slat_guidance_strength,
+        },
+    )
+    video = render_utils.render_video(outputs['gaussian'][0], num_frames=120)['color']
+    video_geo = render_utils.render_video(outputs['mesh'][0], num_frames=120)['normal']
+    video = [np.concatenate([video[i], video_geo[i]], axis=1) for i in range(len(video))]
+    video_path = os.path.join(user_dir, 'sample.mp4')
+    imageio.mimsave(video_path, video, fps=15)
+    state = pack_state(outputs['gaussian'][0], outputs['mesh'][0])
+    torch.cuda.empty_cache()
+    return state, video_path
+
+@spaces.GPU(duration=90)
+def extract_glb(
+    state: dict,
+    mesh_simplify: float,
+    texture_size: int,
+    req: gr.Request,
+) -> Tuple[str, str]:
+    user_dir = os.path.join(TMP_DIR, str(req.session_hash))
+    gs, mesh = unpack_state(state)
+    glb = postprocessing_utils.to_glb(gs, mesh, simplify=mesh_simplify, texture_size=texture_size, verbose=False)
+    glb_path = os.path.join(user_dir, 'sample.glb')
+    glb.export(glb_path)
+    torch.cuda.empty_cache()
+    return glb_path, glb_path
+
+@spaces.GPU
+def extract_gaussian(state: dict, req: gr.Request) -> Tuple[str, str]:
+    user_dir = os.path.join(TMP_DIR, str(req.session_hash))
+    gs, _ = unpack_state(state)
+    gaussian_path = os.path.join(user_dir, 'sample.ply')
+    gs.save_ply(gaussian_path)
+    torch.cuda.empty_cache()
+    return gaussian_path, gaussian_path
+
+# Gradio Interface
+with gr.Blocks() as demo:
+    gr.Markdown("""
+    ## Game Asset Generation to 3D with FLUX and TRELLIS
+    * Enter a prompt to generate a game asset image, then convert it to 3D
+    * If you find the generated 3D asset satisfactory, click "Extract GLB" to extract the GLB file and download it.
+    * [TRELLIS Model](https://huggingface.co/JeffreyXiang/TRELLIS-image-large) [Trellis Github](https://github.com/microsoft/TRELLIS) [Flux-Dev](https://huggingface.co/black-forest-labs/FLUX.1-dev) 
+    * [Flux Game Assets LoRA](https://huggingface.co/gokaygokay/Flux-Game-Assets-LoRA-v2) [Hyper FLUX 8Steps LoRA](https://huggingface.co/ByteDance/Hyper-SD) [safetensors to GGUF for Flux](https://github.com/ruSauron/to-gguf-bat) [Thanks to John6666](https://huggingface.co/John6666)
+    """)
+    
+    with gr.Row():
+        with gr.Column():
+            # Flux image generation inputs
+            prompt = gr.Text(label="Prompt", placeholder="Enter your game asset description")
+            
+            with gr.Accordion("Generation Settings", open=False):
+                seed = gr.Slider(0, MAX_SEED, label="Seed", value=42, step=1)
+                randomize_seed = gr.Checkbox(label="Randomize Seed", value=True)
+                with gr.Row():
+                    width = gr.Slider(512, 1024, label="Width", value=1024, step=16)
+                    height = gr.Slider(512, 1024, label="Height", value=1024, step=16)
+                with gr.Row():
+                    guidance_scale = gr.Slider(0.0, 10.0, label="Guidance Scale", value=3.5, step=0.1)
+                #    num_inference_steps = gr.Slider(1, 50, label="Steps", value=8, step=1)
+
+            with gr.Accordion("3D Generation Settings", open=False):
+                gr.Markdown("Stage 1: Sparse Structure Generation")
+                with gr.Row():
+                    ss_guidance_strength = gr.Slider(0.0, 10.0, label="Guidance Strength", value=7.5, step=0.1)
+                    ss_sampling_steps = gr.Slider(1, 50, label="Sampling Steps", value=12, step=1)
+                gr.Markdown("Stage 2: Structured Latent Generation")
+                with gr.Row():
+                    slat_guidance_strength = gr.Slider(0.0, 10.0, label="Guidance Strength", value=3.0, step=0.1)
+                    slat_sampling_steps = gr.Slider(1, 50, label="Sampling Steps", value=12, step=1)
+
+            generate_btn = gr.Button("Generate")
+            
+            with gr.Accordion("GLB Extraction Settings", open=False):
+                mesh_simplify = gr.Slider(0.9, 0.98, label="Simplify", value=0.95, step=0.01)
+                texture_size = gr.Slider(512, 2048, label="Texture Size", value=1024, step=512)
+            
+            with gr.Row():
+                extract_glb_btn = gr.Button("Extract GLB", interactive=False)
+                extract_gs_btn = gr.Button("Extract Gaussian", interactive=False)
+
+        with gr.Column():
+            generated_image = gr.Image(label="Generated Asset", type="pil")
+            
+        with gr.Column():
+            
+            video_output = gr.Video(label="Generated 3D Asset", autoplay=True, loop=True)
+            model_output = LitModel3D(label="Extracted GLB/Gaussian", exposure=8.0, height=400)
+            
+            with gr.Row():
+                download_glb = gr.DownloadButton(label="Download GLB", interactive=False)
+                download_gs = gr.DownloadButton(label="Download Gaussian", interactive=False)
+
+    output_buf = gr.State()
+
+    # Event handlers
+    demo.load(start_session)
+    demo.unload(end_session)
+
+    generate_btn.click(
+        generate_flux_image,
+        inputs=[prompt, seed, randomize_seed, width, height, guidance_scale],
+        outputs=[generated_image],
+    ).then(
+        image_to_3d,
+        inputs=[generated_image, seed, ss_guidance_strength, ss_sampling_steps, slat_guidance_strength, slat_sampling_steps],
+        outputs=[output_buf, video_output],
+    ).then(
+        lambda: (True, True),
+        outputs=[extract_glb_btn, extract_gs_btn]
+    )
+
+    extract_glb_btn.click(
+        extract_glb,
+        inputs=[output_buf, mesh_simplify, texture_size],
+        outputs=[model_output, download_glb]
+    ).then(
+        lambda: True,
+        outputs=[download_glb]
+    )
+    
+    extract_gs_btn.click(
+        extract_gaussian,
+        inputs=[output_buf],
+        outputs=[model_output, download_gs]
+    ).then(
+        lambda: True,
+        outputs=[download_gs]
+    )
+
+    model_output.clear(
+        lambda: gr.Button(interactive=False),
+        outputs=[download_glb],
+    )
+
+# Initialize both pipelines
+if __name__ == "__main__":
+    from diffusers import FluxTransformer2DModel, FluxPipeline, BitsAndBytesConfig, GGUFQuantizationConfig
+    from transformers import T5EncoderModel, BitsAndBytesConfig as BitsAndBytesConfigTF
+    
+    # Initialize Flux pipeline
+    device = "cuda" if torch.cuda.is_available() else "cpu"
+    huggingface_token = os.getenv("HUGGINGFACE_TOKEN")
+    
+    dtype = torch.bfloat16
+    file_url = "https://huggingface.co/gokaygokay/flux-game/blob/main/hyperflux_00001_.q8_0.gguf"
+    file_url = file_url.replace("/resolve/main/", "/blob/main/").replace("?download=true", "")
+    single_file_base_model = "camenduru/FLUX.1-dev-diffusers"
+    quantization_config_tf = BitsAndBytesConfigTF(load_in_8bit=True, bnb_8bit_compute_dtype=torch.bfloat16)
+    text_encoder_2 = T5EncoderModel.from_pretrained(single_file_base_model, subfolder="text_encoder_2", torch_dtype=dtype, config=single_file_base_model, quantization_config=quantization_config_tf, token=huggingface_token)
+    if ".gguf" in file_url:
+        transformer = FluxTransformer2DModel.from_single_file(file_url, subfolder="transformer", quantization_config=GGUFQuantizationConfig(compute_dtype=dtype), torch_dtype=dtype, config=single_file_base_model)
+    else:
+        quantization_config = BitsAndBytesConfig(load_in_4bit=True, bnb_4bit_quant_type="nf4", bnb_4bit_use_double_quant=True, bnb_4bit_compute_dtype=torch.bfloat16, token=huggingface_token)
+        transformer = FluxTransformer2DModel.from_single_file(file_url, subfolder="transformer", torch_dtype=dtype, config=single_file_base_model, quantization_config=quantization_config, token=huggingface_token)
+    flux_pipeline = FluxPipeline.from_pretrained(single_file_base_model, transformer=transformer, text_encoder_2=text_encoder_2, torch_dtype=dtype, token=huggingface_token)
+    flux_pipeline.to("cuda")
+    # Initialize Trellis pipeline
+    trellis_pipeline = TrellisImageTo3DPipeline.from_pretrained("JeffreyXiang/TRELLIS-image-large")
+    trellis_pipeline.cuda()
+    try:
+        trellis_pipeline.preprocess_image(Image.fromarray(np.zeros((512, 512, 3), dtype=np.uint8)))
+    except:
+        pass
+    
+    demo.queue(max_size=10).launch()

requirements.txt

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+--extra-index-url https://download.pytorch.org/whl/cu121
+
+torch==2.4.0
+torchvision==0.19.0
+pillow==10.4.0
+imageio==2.36.1
+imageio-ffmpeg==0.5.1
+tqdm==4.67.1
+easydict==1.13
+opencv-python-headless==4.10.0.84
+scipy==1.14.1
+rembg==2.0.60
+onnxruntime==1.20.1
+trimesh==4.5.3
+xatlas==0.0.9
+pyvista==0.44.2
+pymeshfix==0.17.0
+igraph==0.11.8
+git+https://github.com/EasternJournalist/utils3d.git@9a4eb15e4021b67b12c460c7057d642626897ec8
+xformers==0.0.27.post2
+spconv-cu120==2.3.6
+transformers==4.46.3
+gradio_litmodel3d==0.0.1
+flash-attn==2.7.0.post2
+diff-gaussian-rasterization @ https://huggingface.co/spaces/JeffreyXiang/TRELLIS/resolve/main/wheels/diff_gaussian_rasterization-0.0.0-cp310-cp310-linux_x86_64.whl
+nvdiffrast @ https://huggingface.co/spaces/JeffreyXiang/TRELLIS/resolve/main/wheels/nvdiffrast-0.3.3-cp310-cp310-linux_x86_64.whl
+accelerate
+diffusers
+peft
+sentencepiece
+bitsandbytes
+gguf