diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d293dc2..6afe024 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -24,9 +24,6 @@ jobs:
       - name: 安装测试依赖
         run: python -m pip install numpy pytest
 
-      - name: 准备 Vendor
-        run: python prepare_vendor.py
-
       - name: 运行测试
         run: python -m pytest
 
diff --git a/.gitignore b/.gitignore
index fc0a0e3..7ba9ec1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,5 +7,4 @@ build/
 *.zip
 .pytest_cache/
 
-/vendor/
 /models/
diff --git a/README.md b/README.md
index 6e36d3c..297d75b 100644
--- a/README.md
+++ b/README.md
@@ -19,9 +19,10 @@ SnapForm 是一个 Blender 扩展，可以把一张照片、一段视频或一
    最快的 DirectML/CoreML provider，否则 CPU。下载超时会自动重试国内镜像，无需手动配置
 5. 打开 3D 视图右侧的 `SnapForm` 面板，点击 `Install Environment`
 
-扩展只内置对应平台的 uv。首次使用会自动下载轻量的 ONNX Runtime 环境，随后自动下载 `MoGe-2 ViT-S Normal` 和
+扩展不内置 uv 或 AI 运行库。首次使用会先下载并校验固定版本的 uv，随后自动安装轻量的 ONNX Runtime 环境，再下载 `MoGe-2 ViT-S Normal` 和
 `BEN2 Base`；不安装 PyTorch，也不下载各模型的 Python 源码包。其他 AI 模型可在
 `Models` panel 中按需下载，请保持网络畅通，首次安装需要一些时间。
+安装时 uv、ONNX Environment、MoGe-2 和 BEN2 各自使用独立的 0–100% 进度；下载阶段显示速度与连续字节进度。
 
 ## 快速上手
 
@@ -69,7 +70,8 @@ Bump Scale 会在材质组内乘以 `0.001`，并按透视表面的深度空间
 ### 视频与序列帧
 
 SnapForm 支持视频（mp4、mkv、mov 等）和序列帧，会逐帧处理并生成逐帧对应的立体面片。处理范围默认
-跟随 Empty 上设置的 `Image Frames` 与 `Offset`，不需要额外配置。
+跟随 Empty 上设置的 `Image Frames` 与 `Offset`，不需要额外配置。DA3 的转换任务复用同一个 ONNX
+Session 逐帧推理，显存峰值不随视频帧数平方增长；Debug 多帧输出仍使用多视图联合推理。
 
 ## 任务结果保存在哪里
 
diff --git a/docs/depth-plane.md b/docs/depth-plane.md
index 4170cd7..a7fa719 100644
--- a/docs/depth-plane.md
+++ b/docs/depth-plane.md
@@ -22,6 +22,8 @@
    因此材质直接用 `.foreground` 同时提供颜色和 Mask，不再额外加载原图 Image Texture。
     Image Empty 引用视频或序列帧时，DA3 与 MoGe-2 会按 Empty 的 Image Frames 数值逐帧估计
     深度（未设置时为完整帧数，显式设为 1 时只处理 1 帧），起始帧跟随 Empty 的 Offset，与背景蒙版范围一致；
+    DA3 会复用同一个 ONNX Session 对每帧独立推理，再合并为原有序列输出，避免多帧 Attention 的平方级显存占用。
+    该行为只用于 Depth Plane 与 Surface 转换；Debug 多帧输出仍联合推理。
     Offset 超出视频长度时同样把窗口收进视频内。材质节点与置换贴图的 Start 保持与原 Empty
     一致；Original 模式的视频或序列帧使用 `frame.0001.jpg` 等原图序列作为颜色与深度，
     `foreground.0001.png` 只提供前景 Alpha。
diff --git a/docs/development.md b/docs/development.md
index e22d4f4..5e620c9 100644
--- a/docs/development.md
+++ b/docs/development.md
@@ -3,7 +3,6 @@
 ## 开发
 
 ```bash
-uv run python prepare_vendor.py
 uv run pytest tests -v
 uv run python pack.py
 ```
@@ -12,10 +11,7 @@ uv run python pack.py
 
 ```text
 .
-├── vendor.lock.toml        各平台 uv 的版本、URL 与 SHA-256
-├── prepare_vendor.py       下载并校验各平台 uv
 ├── pack.py
-├── vendor/                 不进入 Git 的 uv 下载缓存
 ├── src/
 │   └── snapform/
 │       ├── blender_manifest.toml
diff --git a/docs/features.md b/docs/features.md
index 8823bed..13ea5ce 100644
--- a/docs/features.md
+++ b/docs/features.md
@@ -37,7 +37,8 @@
 - Image Empty 右键菜单可直接运行 DA3，根据 `mini_npz` 深度生成面片
 - Image Empty 右键菜单可直接运行 BEN2，保留原图并换用新建的透明背景图片
 - Image Empty 支持视频与序列帧输入：`Convert to Depth Plane` 逐帧估计深度，
-  `Remove Background` 逐帧抠图，入口保持不变
+  `Remove Background` 逐帧抠图，入口保持不变。DA3 转换时每帧独立执行 ONNX 推理并复用模型 Session；
+  Debug 多帧任务继续联合推理，以保留跨视图相机与深度关系
 - 视频生成的序列帧以外部文件引用保留在 job 目录（Blender 无法整体 Pack 序列帧）；
   Geometry Nodes 与材质 Image Texture 均可按场景帧播放序列帧
 - 使用浮点深度贴图、`O DA3 Depth Plane` Geometry Nodes 和原图 Bump 构建立体面片
@@ -49,10 +50,9 @@
 
 ## 使用
 
-1. 先运行 `uv run python prepare_vendor.py`，按 `vendor.lock.toml` 下载并校验固定版本的
-   第三方构建输入；再运行 `uv run python pack.py`，分别构建 `windows-x64`、`macos-arm64`、
-   `linux-x64` 三个平台的 Extension ZIP（如 `SnapForm.v0.11.1.macos-arm64.zip`）。
-   每个包只含对应平台的 uv 二进制，不再携带 AI 项目的源码包。
+1. 运行 `uv run python pack.py`，分别构建 `windows-x64`、`macos-arm64`、
+   `linux-x64` 三个平台的 Extension ZIP（如 `SnapForm.v0.11.2.macos-arm64.zip`）。
+   安装包不携带 uv 或 AI 项目源码；首次安装 Environment 时下载固定版本 uv，官方源建连超过 3 秒后回退 OmooLab 镜像，并校验固定 SHA-256。
 2. 在 Blender 的 `Preferences > Extensions` 中选择 `Install from Disk`。
 3. 在 Extension Preferences 中确认 Storage Root 与 Device。Device 是正式功能
    （Image Empty 右键菜单）使用的推理设备，默认取本机最快的 DirectML/CoreML provider，否则 CPU，且只列出
@@ -60,12 +60,15 @@
 4. 在 `AI Service` 点击 `Install Environment`。首次安装会下载 Python、ONNX Runtime、FastAPI、Uvicorn；
    uv 已内置在扩展中，DA3、BEN2 与 MoGe 不安装源码包，
    并在 Environment 安装后自动下载 `MoGe-2 ViT-S Normal` 和 FP16 `BEN2 Base` 推荐模型。Environment 安装
-   固定显示 `Environment`、`ONNX Runtime` 两个用户阶段；FastAPI 等内部安装步骤合并在 `ONNX Runtime` 中。
-   安装完成后直接写入 Environment Manifest，不再额外导入全部组件进行验证。推荐模型属于安装
-   后的自动步骤，不计入阶段编号；`DA3 Base` 等其他模型可稍后在 `Models` 面板按需下载。
-   状态文字使用 `阶段/总数 阶段名 | 当前操作 | 预计剩余时间`。依赖安装只显示阶段与已解析的
-   包总数，不再承诺剩余时间；模型下载根据字节数和速度计算剩余时间，例如
-   `Downloading DA3 Small | 14.2 MB/s | About 2 min left`。重试或切换镜像时进度不会倒退。
+   首次安装依次显示 `uv`、`ONNX Environment`、`MoGe-2 ViT-S Normal` 与 `BEN2 Base`；每个阶段
+   都独立从 0 走到 100%，进入下一阶段时进度条归零。uv 已存在时省略其阶段并重新编号。
+   安装完成后直接写入 Environment Manifest，不再额外导入全部组件进行验证；`DA3 Base` 等其他模型可稍后在 `Models` 面板按需下载。
+   状态文字使用 `阶段/总数 当前操作`，例如
+   `3/4 Downloading MoGe-2 ViT-S Normal 8.4 MB/s`。依赖安装只显示阶段与已解析的
+   包总数；模型下载显示速度，例如
+   `Downloading DA3 Small 14.2 MB/s`；镜像来源显示为
+   `Downloading DA3 Small (mirror) 14.2 MB/s`。下载按字节连续推进，重试或切换镜像时进度不会倒退。
+   Environment 安装阶段与 `Models` 面板单独下载使用相同的模型名称格式，不会改写为通用的 `Downloading packages`。
     Environment 安装后即使模型下载中断也不影响 Service 使用，可稍后在 `Models` 面板单独补下。
     安装不做启动网络预检：依赖安装默认依次尝试清华、阿里镜像并以 pypi.org 兜底；模型下载由
     worker 自行探测回退到 OmooLab 镜像，切换结果写入 service.json 的 models_from_r2 字段，
diff --git a/docs/service.md b/docs/service.md
index 0ff70b7..c02cfe4 100644
--- a/docs/service.md
+++ b/docs/service.md
@@ -21,7 +21,7 @@ Environment、模型和任务结果默认保存在 `~/.snapform`：
 
 ## ONNX-only Environment
 
-扩展只内置对应平台的 `uv` 可执行文件。`Install Environment` 使用它创建环境并安装：
+扩展不内置 `uv` 可执行文件或 AI 运行库。`Install Environment` 首先下载固定版本的 uv，校验 SHA-256 后解压到共享 Storage Root，再用它创建环境并安装：
 
 - ONNX Runtime 1.24.4；Windows 使用 `onnxruntime-directml`
 - NumPy 2.4.2、Pillow 12.1.1、PyAV 17.0.0、trimesh 4.11.2
@@ -41,7 +41,7 @@ Windows 当前发行环境提供 DirectML 与 CPU；`Auto` 优先使用 `DmlExec
 - DA3 Small、DA3 Base
 - BEN2 Base
 
-首次安装自动下载 `MoGe-2 ViT-S Normal` 与 FP16 `BEN2 Base`，其他模型在 `Models` panel 按需下载。模型按 Hugging Face 仓库末段名称保存在 `~/.snapform/models/`，并保留仓库内部结构。声明了文件清单与校验值的模型会直接走 Hugging Face `resolve` 直链流式下载，跳过文件清单与 ETag 预校验；连接源不可达时 6 秒内快速失败并回退到 `https://models.omoolab.xyz/<repository-name>/<relative-path>`，并把 `models_from_r2` 写入 service.json，本次 service 周期内后续模型直接走 R2，不再重复等待 Hugging Face。R2 文件会校验大小与 SHA-256。未声明清单的仓库仍使用 `huggingface_hub` 快照下载。可用 `HF_ENDPOINT` 指定 Hugging Face 镜像。
+首次安装自动下载 `MoGe-2 ViT-S Normal` 与 FP16 `BEN2 Base`，其他模型在 `Models` panel 按需下载。模型按 Hugging Face 仓库末段名称保存在 `~/.snapform/models/`，并保留仓库内部结构。声明了文件清单与校验值的模型会直接走 Hugging Face `resolve` 直链流式下载，跳过文件清单与 ETag 预校验；连接源不可达时使用 3 秒 TCP 与 TLS 建连超时，随后回退到 `https://models.omoolab.xyz/<repository-name>/<relative-path>`，并把 `models_from_r2` 写入 service.json，本次 service 周期内后续模型直接走 R2，不再重复等待 Hugging Face。建连成功后不限制模型文件读取时长。R2 文件会校验大小与 SHA-256。未声明清单的仓库仍使用 `huggingface_hub` 快照下载。可用 `HF_ENDPOINT` 指定 Hugging Face 镜像。
 
 DA3 ONNX 使用模型的 camera decoder 恢复外参与内参；旧版 `Use Ray Pose` 参数只为任务协议兼容保留，不参与 ONNX 推理。MoGe-2 的 metric depth、normal、mask、normalized intrinsics，以及 BEN2 的 Alpha，均在 NumPy 后处理中恢复。
 
@@ -50,7 +50,9 @@ DA3 ONNX 使用模型的 camera decoder 恢复外参与内参；旧版 `Use Ray
 
 安装器直接开始工作，不做阻塞式网络预检。依赖安装默认依次尝试清华、阿里云 PyPI 镜像并以 pypi.org 兜底，也可用 `UV_INDEX_URL` 显式指定。Windows 系统代理会注入子进程；同时支持 `HTTP_PROXY`、`HTTPS_PROXY` 与 `ALL_PROXY`。
 
-GitHub 不参与用户安装流程。`prepare_vendor.py` 只为扩展打包准备各平台的 `uv` 二进制。
+uv 默认从 Astral 的 GitHub Release 下载，TCP 与 TLS 建连超过 3 秒时回退到 `https://mirror.omoolab.xyz/uv/<version>/`；镜像建连超时为 15 秒，避免较慢的 TLS 握手再次过早失败。两个来源使用相同的下载速度与连续字节进度显示，并共用固定 SHA-256 校验，建连成功后不限制文件读取时长。下载压缩包只作临时文件，提取完成后删除。模型下载不经过 GitHub。
+
+首次安装按阶段分别显示 0–100%：uv 下载与解压、ONNX Environment 创建与依赖安装、MoGe-2 下载、BEN2 下载。进入下一阶段时进度条归零；若 uv 已存在则省略该阶段并重新编号。
 
 ## 生命周期
 
@@ -64,9 +66,11 @@ Service 全局同时执行一个 AI 任务。BEN2 独立缓存，深度模型只
 
 DA3 ONNX 的注意力是朴素实现（`MatMul → Softmax → MatMul`），峰值显存与 `(帧数 × 每帧 patch 数)²` 成正比。迁移到 ONNX 前的 PyTorch 版使用 `scaled_dot_product_attention`（`XFORMERS_DISABLED=1`），按块计算注意力分数、不落地完整注意力矩阵，显存近似线性，因此视频能处理几十上百帧；ONNX 导出把 SDPA 回退成朴素注意力，多帧在中高分辨率下会显存爆炸（约 12 帧 @ 1008 即需 ~90 GB）。
 
-作为兜底，`da3_onnx.infer` 在推理前按 `views × patches` 预估注意力张量，超过 4 GiB 直接报错并提示减少帧数或 Resolution Scale，避免 onnxruntime 报出难以定位的分配失败或 `UnicodeDecodeError`（DirectML 在中文 Windows 下报错信息为 GBK 编码，被 UTF-8 解码掩盖）。
+Depth Plane 与 Surface 的视频、序列帧转换会复用同一个 ONNX Session 逐帧独立推理，再把结果合并到现有序列输出，因此峰值显存只取决于单帧分辨率。逐帧结果不保留 DA3 的跨视图尺度与相机位姿一致性，适用于当前逐帧动画结构。Debug 多帧输出仍使用联合推理，以保留多视图关系。
+
+联合推理时，`da3_onnx.infer` 会在执行前按 `views × patches` 预估注意力张量，超过 4 GiB 直接报错并提示减少帧数或 Resolution Scale，避免 onnxruntime 报出难以定位的分配失败或 `UnicodeDecodeError`（DirectML 在中文 Windows 下报错信息为 GBK 编码，被 UTF-8 解码掩盖）。
 
 待解决方向：
 
 - 重新导出 DA3 ONNX，使用 ORT 的 `Attention` / `MultiHeadAttention` 贡献算子，或注入内存高效的注意力算子；
-- 或把视频按小窗口分批推理，再按 `ref_view_strategy` 对齐相机位姿拼接。
+- 若未来需要统一坐标系的视频重建，可按小窗口分批推理，再对齐相机位姿与深度尺度。
diff --git a/pack.py b/pack.py
index 9b545df..76716dc 100644
--- a/pack.py
+++ b/pack.py
@@ -1,4 +1,3 @@
-import hashlib
 import tomllib
 from pathlib import Path
 from zipfile import ZIP_DEFLATED, ZipFile
@@ -6,49 +5,8 @@ from zipfile import ZIP_DEFLATED, ZipFile
 
 PROJECT_ROOT = Path(__file__).resolve().parent
 SOURCE_DIR = PROJECT_ROOT / "src" / "snapform"
-VENDOR_DIR = PROJECT_ROOT / "vendor"
 DIST_DIR = PROJECT_ROOT / "dist"
-LOCK_PATH = PROJECT_ROOT / "vendor.lock.toml"
-
-
-def load_vendor_lock():
-    """Return the locked third-party artifact metadata."""
-    with LOCK_PATH.open("rb") as stream:
-        lock = tomllib.load(stream)
-    if lock.get("schema_version") != 1:
-        raise RuntimeError("Unsupported vendor.lock.toml schema")
-    return lock
-
-
-VENDOR_LOCK = load_vendor_lock()
-PLATFORMS = {
-    platform: artifact["filename"]
-    for platform, artifact in VENDOR_LOCK["platforms"].items()
-}
-
-
-def file_sha256(path):
-    """Return the SHA-256 digest for a file."""
-    digest = hashlib.sha256()
-    with Path(path).open("rb") as stream:
-        while chunk := stream.read(1024 * 1024):
-            digest.update(chunk)
-    return digest.hexdigest()
-
-
-def validate_artifact(path, expected_sha256):
-    """Require an artifact to exist and match its locked digest."""
-    if not path.is_file():
-        raise RuntimeError(
-            f"Missing vendor artifact: {path}. "
-            "Run: uv run python prepare_vendor.py"
-        )
-    actual = file_sha256(path)
-    if actual != expected_sha256:
-        raise RuntimeError(
-            f"Vendor artifact hash mismatch: {path}. "
-            "Run: uv run python prepare_vendor.py"
-        )
+PLATFORMS = ("windows-x64", "macos-arm64", "linux-x64")
 
 
 def manifest_for_platform(platform):
@@ -73,21 +31,6 @@ def manifest_for_platform(platform):
     return "\n".join(lines) + "\n"
 
 
-def bundled_vendor_files(platform):
-    return {
-        f"vendor/{PLATFORMS[platform]}": VENDOR_DIR / PLATFORMS[platform]
-    }
-
-
-def validate_vendor_files(platform):
-    """Validate common archives and the selected uv archive."""
-    uv_artifact = VENDOR_LOCK["platforms"][platform]
-    validate_artifact(
-        VENDOR_DIR / uv_artifact["filename"],
-        uv_artifact["sha256"],
-    )
-
-
 def build_extension(platform):
     if platform not in PLATFORMS:
         raise ValueError(f"Unsupported platform: {platform}")
@@ -96,8 +39,6 @@ def build_extension(platform):
         f"{manifest['name']}.v{manifest['version']}.{platform}.zip"
     )
     DIST_DIR.mkdir(exist_ok=True)
-    vendor_files = bundled_vendor_files(platform)
-    validate_vendor_files(platform)
     with ZipFile(output_path, "w", ZIP_DEFLATED) as archive:
         for source_path in sorted(SOURCE_DIR.rglob("*")):
             if not source_path.is_file():
@@ -105,8 +46,6 @@ def build_extension(platform):
             if "__pycache__" in source_path.parts:
                 continue
             relative_path = source_path.relative_to(SOURCE_DIR)
-            if relative_path.parts[0] == "vendor":
-                continue
             if source_path.name == "blender_manifest.toml":
                 continue
             archive.write(source_path, relative_path)
@@ -114,11 +53,6 @@ def build_extension(platform):
             "blender_manifest.toml",
             manifest_for_platform(platform),
         )
-        for archive_name, source_path in vendor_files.items():
-            archive.writestr(
-                archive_name,
-                source_path.read_bytes(),
-            )
     return output_path
 
 
diff --git a/prepare_vendor.py b/prepare_vendor.py
deleted file mode 100644
index cacd9b4..0000000
--- a/prepare_vendor.py
+++ /dev/null
@@ -1,110 +0,0 @@
-import argparse
-import hashlib
-import sys
-import tomllib
-import urllib.request
-from pathlib import Path
-
-
-PROJECT_ROOT = Path(__file__).resolve().parent
-LOCK_PATH = PROJECT_ROOT / "vendor.lock.toml"
-VENDOR_DIR = PROJECT_ROOT / "vendor"
-CHUNK_SIZE = 1024 * 1024
-
-
-def load_lock(path=LOCK_PATH):
-    """Load and validate the vendor lock file."""
-    with Path(path).open("rb") as stream:
-        lock = tomllib.load(stream)
-    if lock.get("schema_version") != 1:
-        raise RuntimeError("Unsupported vendor.lock.toml schema")
-    return lock
-
-
-def file_sha256(path):
-    """Return the SHA-256 digest for a file."""
-    digest = hashlib.sha256()
-    with Path(path).open("rb") as stream:
-        while chunk := stream.read(CHUNK_SIZE):
-            digest.update(chunk)
-    return digest.hexdigest()
-
-
-def download_artifact(artifact, destination_dir=VENDOR_DIR):
-    """Download one locked artifact and verify its content."""
-    destination_dir = Path(destination_dir)
-    destination = destination_dir / artifact["filename"]
-    expected = artifact["sha256"]
-    if destination.is_file() and file_sha256(destination) == expected:
-        print(f"Ready: {destination.name}")
-        return destination
-
-    destination_dir.mkdir(parents=True, exist_ok=True)
-    temporary = destination.with_name(f"{destination.name}.part")
-    temporary.unlink(missing_ok=True)
-    print(f"Downloading: {destination.name}")
-    request = urllib.request.Request(
-        artifact["url"],
-        headers={"User-Agent": "SnapForm vendor preparation"},
-    )
-    try:
-        with urllib.request.urlopen(request) as response, temporary.open("wb") as output:
-            while chunk := response.read(CHUNK_SIZE):
-                output.write(chunk)
-        actual = file_sha256(temporary)
-        if actual != expected:
-            raise RuntimeError(
-                f"SHA-256 mismatch for {destination.name}: "
-                f"expected {expected}, got {actual}"
-            )
-        temporary.replace(destination)
-    except Exception:
-        temporary.unlink(missing_ok=True)
-        raise
-    return destination
-
-
-def prepare(platforms=None, lock_path=LOCK_PATH, destination_dir=VENDOR_DIR):
-    """Prepare bundled uv executables for selected platforms."""
-    lock = load_lock(lock_path)
-    available = lock["platforms"]
-    selected = list(available) if platforms is None else platforms
-    unknown = sorted(set(selected) - set(available))
-    if unknown:
-        raise ValueError(f"Unsupported platform: {', '.join(unknown)}")
-
-    artifacts = [available[platform] for platform in selected]
-    return [
-        download_artifact(artifact, destination_dir)
-        for artifact in artifacts
-    ]
-
-
-def parse_args(argv=None):
-    """Parse command-line options."""
-    parser = argparse.ArgumentParser(
-        description="Download and verify third-party files for SnapForm.",
-    )
-    parser.add_argument(
-        "--platform",
-        action="append",
-        dest="platforms",
-        help="Prepare one platform; repeat as needed. Default: all platforms.",
-    )
-    return parser.parse_args(argv)
-
-
-def main(argv=None):
-    """Run vendor preparation from the command line."""
-    args = parse_args(argv)
-    try:
-        paths = prepare(args.platforms)
-    except (OSError, RuntimeError, ValueError) as error:
-        print(f"Preparation failed: {error}", file=sys.stderr)
-        return 1
-    print(f"Prepared {len(paths)} files")
-    return 0
-
-
-if __name__ == "__main__":
-    raise SystemExit(main())
diff --git a/pyproject.toml b/pyproject.toml
index 19a00e2..9e6f42b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "snapform"
-version = "0.11.1"
+version = "0.11.2"
 description = "Fast image-guided structure building tools for Blender"
 readme = "README.md"
 requires-python = ">=3.11"
diff --git a/src/snapform/blender_manifest.toml b/src/snapform/blender_manifest.toml
index c2ed409..b55382e 100644
--- a/src/snapform/blender_manifest.toml
+++ b/src/snapform/blender_manifest.toml
@@ -1,7 +1,7 @@
 schema_version = "1.0.0"
 
 id = "snapform"
-version = "0.11.1"
+version = "0.11.2"
 name = "SnapForm"
 tagline = "Build spatial structures from images, fast"
 maintainer = "OmooLab"
diff --git a/src/snapform/client.py b/src/snapform/client.py
index a8724bb..fa00baa 100644
--- a/src/snapform/client.py
+++ b/src/snapform/client.py
@@ -269,7 +269,7 @@ def job_id_from_status(status_path):
 
 
 def uv_executable():
-    """Return the bundled uv path inside the shared storage."""
+    """Return the downloaded uv path inside the shared storage."""
     return str(uv_cache_path())
 
 
@@ -833,6 +833,7 @@ def reconstruct_request(
     mesh_filter_edges=None,
     start_frame=1,
     device=None,
+    inference_mode="joint",
 ):
     snapform_selected_key = model_key or selected_model_key(settings, export_format)
     snapform_selected_process_res = (
@@ -867,6 +868,7 @@ def reconstruct_request(
         "device": (device or settings.device).lower(),
         "use_ray_pose": 1 if snapform_selected_ray_pose else 0,
         "ref_view_strategy": settings.ref_view_strategy,
+        "inference_mode": inference_mode,
         "remove_background_model_dir": "",
         "mesh_filter_edges": bool(
             getattr(settings, "mesh_filter_edges", True)
diff --git a/src/snapform/install_env.py b/src/snapform/install_env.py
index ba6a70c..a9599c0 100644
--- a/src/snapform/install_env.py
+++ b/src/snapform/install_env.py
@@ -1,4 +1,6 @@
 import argparse
+import hashlib
+import http.client
 import json
 import os
 import platform
@@ -36,13 +38,30 @@ PILLOW_VERSION = "12.1.1"
 AV_VERSION = "17.0.0"
 TRIMESH_VERSION = "4.11.2"
 HUGGINGFACE_HUB_VERSION = "1.4.1"
+UV_VERSION = "0.11.3"
+UV_OFFICIAL_CONNECT_TIMEOUT = 3.0
+UV_MIRROR_CONNECT_TIMEOUT = 15.0
+DOWNLOAD_CHUNK_SIZE = 256 * 1024
+UV_OFFICIAL_BASE_URL = (
+    f"https://github.com/astral-sh/uv/releases/download/{UV_VERSION}"
+)
+UV_MIRROR_BASE_URL = f"https://mirror.omoolab.xyz/uv/{UV_VERSION}"
+UV_ARTIFACTS = {
+    "x86_64-pc-windows-msvc": (
+        "uv-x86_64-pc-windows-msvc.zip",
+        "ae681c0aaec7cc96af184648cb88d73f8393ed60fa5880abdd6bdb910f9b227c",
+    ),
+    "aarch64-apple-darwin": (
+        "uv-aarch64-apple-darwin.tar.gz",
+        "2bc3d0c7bf2bd08325b1e170abac6f7e5b3346e1d4eab3370d17cefec934996f",
+    ),
+    "x86_64-unknown-linux-gnu": (
+        "uv-x86_64-unknown-linux-gnu.tar.gz",
+        "c0f3236f146e55472663cfbcc9be3042a9f1092275bbe3fe2a56a6cbfd3da5ce",
+    ),
+}
 _resolved_pypi_index = None
 DEFAULT_MODEL_KEYS = (MOGE2_MODEL.key, BEN2_MODEL.key)
-RUNTIME_STAGE_COUNT = 2
-ENVIRONMENT_SLICE = (0.02, 0.06)
-AI_COMPONENTS_SLICE = (0.10, 0.85)
-MODELS_SLICE_START = 0.85
-MODELS_SLICE_END = 1.0
 RAMP_RATE = 0.02
 CREEP_CAP = 0.60
 CHECK_CODE = (
@@ -54,6 +73,48 @@ CHECK_CODE = (
 )
 
 
+class _ConnectHTTPSConnection(http.client.HTTPSConnection):
+    """Limit TCP/TLS setup without limiting artifact reads."""
+
+    connect_timeout = UV_OFFICIAL_CONNECT_TIMEOUT
+
+    def connect(self):
+        try:
+            self.timeout = self.connect_timeout
+            super().connect()
+        finally:
+            self.timeout = None
+        self.sock.settimeout(None)
+
+
+class _MirrorConnectHTTPSConnection(_ConnectHTTPSConnection):
+    connect_timeout = UV_MIRROR_CONNECT_TIMEOUT
+
+
+class _ConnectHTTPSHandler(urllib.request.HTTPSHandler):
+    def __init__(self, connection_type):
+        super().__init__()
+        self.connection_type = connection_type
+
+    def https_open(self, request):
+        return self.do_open(self.connection_type, request)
+
+
+def build_uv_download_opener(connection_type):
+    return urllib.request.build_opener(
+        urllib.request.ProxyHandler(),
+        _ConnectHTTPSHandler(connection_type),
+    )
+
+
+_uv_download_openers = {
+    UV_OFFICIAL_BASE_URL: build_uv_download_opener(_ConnectHTTPSConnection),
+    UV_MIRROR_BASE_URL: build_uv_download_opener(
+        _MirrorConnectHTTPSConnection
+    ),
+}
+
+
 def configure_standard_streams():
     """Windows 图形进程可能继承 GBK stdout，安装日志统一写为 UTF-8。"""
     for stream in (sys.stdout, sys.stderr):
@@ -484,22 +545,6 @@ def uv_download_target():
     raise RuntimeError(f"Unsupported platform for uv download: {sys.platform}")
 
 
-def bundled_vendor_directory():
-    packaged = Path(__file__).with_name("vendor")
-    if packaged.is_dir():
-        return packaged
-    project_root = Path(__file__).resolve().parents[2]
-    if (project_root / "pyproject.toml").is_file():
-        return project_root / "vendor"
-    return packaged
-
-
-def bundled_uv_archive():
-    target, archive = uv_download_target()
-    path = bundled_vendor_directory() / f"uv-{target}.{archive}"
-    return path if path.is_file() else None
-
-
 def archive_is_valid(path):
     if zipfile.is_zipfile(path):
         return True
@@ -526,6 +571,99 @@ def extract_uv(archive_path, uv_path):
             os.chmod(uv_path, 0o755)
 
 
+def file_sha256(path):
+    digest = hashlib.sha256()
+    with Path(path).open("rb") as stream:
+        while chunk := stream.read(1024 * 1024):
+            digest.update(chunk)
+    return digest.hexdigest()
+
+
+def format_download_rate(rate):
+    size = float(rate)
+    units = ("B/s", "KB/s", "MB/s", "GB/s")
+    unit_index = 0
+    while size >= 1024 and unit_index < len(units) - 1:
+        size /= 1024
+        unit_index += 1
+    precision = 0 if unit_index == 0 else 1
+    return f"{size:.{precision}f} {units[unit_index]}"
+
+
+def download_uv_archive(
+    destination,
+    status_path,
+    start,
+    end,
+    stage_fields,
+    clock=time.monotonic,
+):
+    target, _archive_type = uv_download_target()
+    artifact = UV_ARTIFACTS.get(target)
+    if artifact is None:
+        raise RuntimeError(f"SnapForm does not provide uv for {target}")
+    filename, expected_checksum = artifact
+    failures = []
+    sources = (
+        (UV_OFFICIAL_BASE_URL, ""),
+        (UV_MIRROR_BASE_URL, " (mirror)"),
+    )
+    for base_url, source_label in sources:
+        destination.unlink(missing_ok=True)
+        url = f"{base_url}/{filename}"
+        write_status(
+            status_path,
+            start,
+            f"Downloading uv{source_label}",
+            **stage_fields,
+        )
+        request = urllib.request.Request(
+            url,
+            headers={"User-Agent": "SnapForm uv bootstrap"},
+        )
+        try:
+            with _uv_download_openers[base_url].open(request) as response:
+                total = int(response.headers.get("Content-Length", 0))
+                downloaded = 0
+                started_at = clock()
+                last_report_at = started_at
+                with destination.open("wb") as output:
+                    while chunk := response.read(DOWNLOAD_CHUNK_SIZE):
+                        output.write(chunk)
+                        downloaded += len(chunk)
+                        now = clock()
+                        if now - last_report_at < 0.20 and downloaded < total:
+                            continue
+                        last_report_at = now
+                        elapsed = max(now - started_at, 1e-6)
+                        rate = downloaded / elapsed
+                        message = (
+                            f"Downloading uv{source_label} "
+                            f"{format_download_rate(rate)}"
+                        )
+                        progress = start
+                        if total:
+                            progress += (end - start) * downloaded / total
+                        write_status(
+                            status_path,
+                            min(progress, end),
+                            message,
+                            **stage_fields,
+                        )
+            actual_checksum = file_sha256(destination)
+            if actual_checksum != expected_checksum:
+                raise RuntimeError(
+                    f"SHA-256 mismatch: {actual_checksum}"
+                )
+            if not archive_is_valid(destination):
+                raise RuntimeError("Downloaded uv archive is invalid")
+            return destination
+        except Exception as error:
+            destination.unlink(missing_ok=True)
+            failures.append(f"{url}: {error}")
+    raise RuntimeError("Unable to download uv; " + "; ".join(failures))
+
+
 def install_uv(
     uv,
     status_path,
@@ -535,29 +673,31 @@ def install_uv(
     start=0.0,
     end=1.0,
 ):
-    """Extract the bundled uv binary; fail clearly when it is missing."""
+    """Download, verify, and extract the pinned uv binary."""
     stage_fields = {
         "stage": stage,
         "stages": stages,
         "stage_label": stage_label,
     }
-    bundled_uv = bundled_uv_archive()
-    if bundled_uv is None:
-        raise RuntimeError(
-            "Bundled uv is missing; reinstall the extension matching your "
-            f"platform (searched {bundled_vendor_directory()})"
-        )
-    if not archive_is_valid(bundled_uv):
-        raise RuntimeError(f"Bundled uv archive is invalid: {bundled_uv}")
-    print(f"Extracting bundled uv from {bundled_uv}")
-    write_status(
-        status_path,
-        start,
-        "extracting bundled uv",
-        **stage_fields,
-    )
     Path(uv).parent.mkdir(parents=True, exist_ok=True)
-    extract_uv(bundled_uv, uv)
+    archive_path = Path(uv).with_name("uv-download.tmp")
+    try:
+        download_uv_archive(
+            archive_path,
+            status_path,
+            start,
+            end,
+            stage_fields,
+        )
+        write_status(
+            status_path,
+            end,
+            "Extracting uv",
+            **stage_fields,
+        )
+        extract_uv(archive_path, uv)
+    finally:
+        archive_path.unlink(missing_ok=True)
 
 
 def run_stage(
@@ -649,38 +789,30 @@ def install(args):
     stages = install_stages(args, venv_dir, python, uv)
     env_stages = [stage for stage in stages if stage[3] != "download"]
     model_stages = [stage for stage in stages if stage[3] == "download"]
-    model_span = (
-        (MODELS_SLICE_END - MODELS_SLICE_START) / len(model_stages)
-        if model_stages
-        else 0.0
-    )
+    total_stages = int(uv_missing) + 1 + len(model_stages)
+    stage = 1
     installed_packages = []
-    for index, (label, command, environment, kind) in enumerate(env_stages):
-        if index == 0:
-            stage = 1
-            stage_start, stage_end = ENVIRONMENT_SLICE
-        elif index == 1:
-            stage = 2
-            stage_start, stage_end = AI_COMPONENTS_SLICE
-        else:
-            raise RuntimeError(f"Unexpected runtime stage: {label}")
-        if uv_missing and index == 0:
-            midpoint = stage_start + (stage_end - stage_start) * 0.5
-            install_uv(
-                uv,
-                args.status,
-                stage=stage,
-                stages=RUNTIME_STAGE_COUNT,
-                stage_label=label,
-                start=stage_start,
-                end=midpoint,
-            )
-            stage_start = midpoint
+    if uv_missing:
+        install_uv(
+            uv,
+            args.status,
+            stage=stage,
+            stages=total_stages,
+            stage_label="uv",
+            start=0.0,
+            end=1.0,
+        )
+        stage += 1
+    environment_label = "ONNX Environment"
+    for index, (_label, command, environment, kind) in enumerate(env_stages):
+        if index >= 2:
+            raise RuntimeError("Unexpected ONNX Environment stage")
+        stage_start, stage_end = ((0.0, 0.05) if index == 0 else (0.05, 1.0))
         stage_installed = run_stage(
             args.status,
             stage,
-            RUNTIME_STAGE_COUNT,
-            label,
+            total_stages,
+            environment_label,
             command,
             environment,
             kind,
@@ -689,6 +821,7 @@ def install(args):
         )
         if isinstance(stage_installed, list):
             installed_packages.extend(stage_installed)
+    stage += 1
     devices = installed_devices()
     venv_dir.mkdir(parents=True, exist_ok=True)
     manifest_path.parent.mkdir(parents=True, exist_ok=True)
@@ -711,44 +844,50 @@ def install(args):
         ),
         encoding="utf-8",
     )
-    model_offset = MODELS_SLICE_START
     failed_models = []
     for label, command, environment, kind in model_stages:
-        stage_start = model_offset
-        stage_end = stage_start + model_span
         try:
             run_stage(
                 args.status,
-                None,
-                None,
+                stage,
+                total_stages,
                 label,
                 command,
                 environment,
                 kind,
-                start=stage_start,
-                end=stage_end,
+                start=0.0,
+                end=1.0,
             )
         except Exception as error:
             print(f"Model download failed: {label}: {error}")
             failed_models.append(label)
             write_status(
                 args.status,
-                stage_end,
+                1.0,
                 f"Skipping {label}; continuing",
+                stage=stage,
+                stages=total_stages,
+                stage_label=label,
             )
-        model_offset = stage_end
+        stage += 1
     if failed_models:
         labels = ", ".join(failed_models)
         write_status(
             args.status,
             1.0,
             f"Environment is installed; retry {labels} from Models",
+            stage=total_stages,
+            stages=total_stages,
+            stage_label=model_stages[-1][0],
         )
         return
     write_status(
         args.status,
         1.0,
         "Environment and recommended models ready",
+        stage=total_stages,
+        stages=total_stages,
+        stage_label=model_stages[-1][0] if model_stages else environment_label,
     )
 
 
diff --git a/src/snapform/operators.py b/src/snapform/operators.py
index 6cebf66..a7d1cf4 100644
--- a/src/snapform/operators.py
+++ b/src/snapform/operators.py
@@ -108,6 +108,7 @@ class ActiveJob:
     started: bool = False
     start_error: str = ""
     start_thread: threading.Thread | None = None
+    progress_stage: int | None = None
 
 
 _active_job = None
@@ -520,6 +521,11 @@ class RunJob(bpy.types.Operator):
                     and remove_background
                 ),
                 device=self._task_device(settings),
+                inference_mode=(
+                    "per_frame"
+                    if self.job_type in DA3_IMAGE_JOBS
+                    else "joint"
+                ),
             ),
             paths,
         )
@@ -612,10 +618,17 @@ class RunJob(bpy.types.Operator):
         reported_progress = float(
             status.get("progress", settings.progress)
         )
-        settings.progress = max(
-            settings.progress,
-            min(max(reported_progress, 0.0), 1.0),
-        )
+        reported_progress = min(max(reported_progress, 0.0), 1.0)
+        reported_stage = status.get("stage")
+        if reported_stage is not None and reported_stage != getattr(
+            job,
+            "progress_stage",
+            None,
+        ):
+            job.progress_stage = reported_stage
+            settings.progress = reported_progress
+        else:
+            settings.progress = max(settings.progress, reported_progress)
         settings.status = self._format_status(status, settings.status)
         self._redraw_ui(context, force=True)
 
@@ -624,38 +637,19 @@ class RunJob(bpy.types.Operator):
         stage = status.get("stage")
         stages = status.get("stages")
         stage_label = status.get("stage_label")
-        parts = []
         if stage and stages:
-            stage_text = f"{stage}/{stages}"
+            prefix = f"{stage}/{stages}"
+            normalized = str(message or "").strip()
+            if normalized and normalized.lower() != str(
+                stage_label or ""
+            ).lower():
+                return f"{prefix} {normalized}"
             if stage_label:
-                stage_text = f"{stage_text} {stage_label}"
-            parts.append(stage_text)
-        elif stage_label:
-            parts.append(str(stage_label))
+                return f"{prefix} {stage_label}"
+            return prefix
         if message:
-            normalized = str(message).strip()
-            if normalized.lower() != str(stage_label or "").lower():
-                parts.append(normalized)
-        eta = self._format_eta(status.get("eta_seconds"))
-        if eta:
-            parts.append(eta)
-        return " | ".join(parts) if parts else (message or fallback)
-
-    @staticmethod
-    def _format_eta(seconds):
-        if seconds is None:
-            return ""
-        seconds = max(float(seconds), 0.0)
-        if seconds <= 10:
-            return "A few seconds left"
-        if seconds < 60:
-            rounded = max(5, int((seconds + 2.5) // 5) * 5)
-            return f"About {rounded} sec left"
-        if seconds < 3600:
-            minutes = int((seconds + 59) // 60)
-            return f"About {minutes} min left"
-        hours = int((seconds + 3599) // 3600)
-        return f"About {hours} hr left"
+            return str(message).strip()
+        return str(stage_label or fallback)
 
     def _finish(self, context, job, return_code):
         settings = context.scene.snapform_settings
diff --git a/src/snapform/worker.py b/src/snapform/worker.py
index d04e6a3..1c886f3 100644
--- a/src/snapform/worker.py
+++ b/src/snapform/worker.py
@@ -49,7 +49,8 @@ EXPORT_FORMATS = (
 HF_ENDPOINT = "https://huggingface.co"
 R2_ENDPOINT = "https://models.omoolab.xyz"
 # 连接（TCP + TLS 握手）超时，源不可达时快速失败切换；下载阶段不设读超时。
-CONNECT_TIMEOUT = 6.0
+CONNECT_TIMEOUT = 3.0
+DOWNLOAD_CHUNK_SIZE = 256 * 1024
 
 
 class _ShortConnectHTTPSConnection(http.client.HTTPSConnection):
@@ -898,7 +899,7 @@ class DownloadProgressReporter:
         with self.lock:
             if progress <= self.progress:
                 return
-            if now - self.last_write_time < 0.20 and progress < 0.95:
+            if now - self.last_write_time < 0.20 and factor < 1.0:
                 return
             self.progress = progress
             self.last_write_time = now
@@ -907,20 +908,10 @@ class DownloadProgressReporter:
             if not effective_rate and elapsed > 0:
                 effective_rate = current / elapsed
             speed = format_rate(effective_rate) if effective_rate else ""
-            eta_seconds = None
-            if effective_rate and effective_rate > 0:
-                eta_seconds = max(total - current, 0) / effective_rate
-            if self.stage is not None:
-                message = (
-                    f"Downloading packages | {speed}"
-                    if speed
-                    else "Downloading packages"
-                )
-            else:
-                prefix = self.label or self.repository
-                message = f"Downloading {prefix}"
-                if speed:
-                    message = f"{message} | {speed}"
+            prefix = self.label or self.repository
+            message = f"Downloading {prefix}"
+            if speed:
+                message = f"{message} {speed}"
             write_status(
                 self.status_path,
                 progress,
@@ -928,7 +919,6 @@ class DownloadProgressReporter:
                 stage=self.stage,
                 stages=self.stages,
                 stage_label=self.stage_label,
-                eta_seconds=eta_seconds,
             )
 
 
@@ -1063,7 +1053,7 @@ def _download_declared_or_fail(args, model_dir, label, start, span, stage_kwargs
             (
                 R2_ENDPOINT,
                 download_from_r2,
-                f"Downloading {label} | OmooLab mirror",
+                f"Downloading {label} (mirror)",
             ),
         )
     else:
@@ -1072,7 +1062,7 @@ def _download_declared_or_fail(args, model_dir, label, start, span, stage_kwargs
             (
                 R2_ENDPOINT,
                 download_from_r2,
-                f"Downloading {label} | OmooLab mirror",
+                f"Downloading {label} (mirror)",
             ),
         )
     failures = []
@@ -1209,7 +1199,7 @@ def _download_file_from_url(
             with opener(request) as response:
                 with open(temporary, "wb") as output:
                     while True:
-                        chunk = response.read(1024 * 1024)
+                        chunk = response.read(DOWNLOAD_CHUNK_SIZE)
                         if not chunk:
                             break
                         output.write(chunk)
@@ -1310,7 +1300,7 @@ def download_from_r2(
         lambda filename: r2_file_url(args.r2_directory, filename),
         start,
         span,
-        label,
+        f"{label} (mirror)" if label else "mirror",
         stage_kwargs,
     )
 
@@ -1935,6 +1925,25 @@ def run_moge(args, model_cache=None, cancel_check=None):
             shutil.rmtree(temporary_directory, ignore_errors=True)
 
 
+def merge_da3_frame_predictions(predictions):
+    """Combine independent single-frame DA3 results for existing exporters."""
+    import numpy as np
+
+    if not predictions:
+        raise ValueError("DA3 returned no frame predictions")
+    merged = predictions[0]
+    for name in (
+        "depth",
+        "conf",
+        "extrinsics",
+        "intrinsics",
+        "processed_images",
+    ):
+        values = [getattr(prediction, name) for prediction in predictions]
+        setattr(merged, name, np.concatenate(values, axis=0))
+    return merged
+
+
 def reconstruct(args, model_cache=None, cancel_check=None):
     write_status(args.status, 0.02, "Starting Environment")
     check_cancelled(cancel_check)
@@ -2016,15 +2025,32 @@ def reconstruct(args, model_cache=None, cancel_check=None):
             0.25,
             f"Estimating depth for {len(images)} frame(s)",
         )
+        inference_options = {
+            "process_res": args.process_res,
+            "process_res_method": args.process_res_method,
+            "use_ray_pose": bool(args.use_ray_pose),
+            "ref_view_strategy": args.ref_view_strategy,
+        }
         try:
-            prediction = infer(
-                model,
-                [str(path) for path in images],
-                process_res=args.process_res,
-                process_res_method=args.process_res_method,
-                use_ray_pose=bool(args.use_ray_pose),
-                ref_view_strategy=args.ref_view_strategy,
-            )
+            if getattr(args, "inference_mode", "joint") == "per_frame":
+                predictions = []
+                for index, image in enumerate(images):
+                    check_cancelled(cancel_check)
+                    write_status(
+                        args.status,
+                        0.25 + 0.60 * index / len(images),
+                        f"Estimating DA3 depth ({index + 1}/{len(images)})",
+                    )
+                    predictions.append(
+                        infer(model, [str(image)], **inference_options)
+                    )
+                prediction = merge_da3_frame_predictions(predictions)
+            else:
+                prediction = infer(
+                    model,
+                    [str(path) for path in images],
+                    **inference_options,
+                )
         except UnicodeDecodeError as error:
             # DirectML reports failures with a locale-specific message that
             # ONNX Runtime cannot always decode, masking the real error.
diff --git a/tests/test_addon.py b/tests/test_addon.py
index cd399c5..dc8aac0 100644
--- a/tests/test_addon.py
+++ b/tests/test_addon.py
@@ -849,7 +849,7 @@ class AddonTest(unittest.TestCase):
                 },
                 "fallback",
             ),
-            "3/8 pytorch | 2 downloaded",
+            "3/8 2 downloaded",
         )
         self.assertEqual(
             operator._format_status(
@@ -886,7 +886,7 @@ class AddonTest(unittest.TestCase):
                 },
                 "fallback",
             ),
-            "2/3 PyTorch | Downloading packages | About 3 min left",
+            "2/3 Downloading packages",
         )
         self.assertEqual(
             operator._format_status(
@@ -902,6 +902,30 @@ class AddonTest(unittest.TestCase):
             "2/3 PyTorch",
         )
 
+    def test_update_status_resets_progress_when_stage_changes(self):
+        operator = self.addon.RunJob()
+        settings = SimpleNamespace(progress=0.9, status="previous")
+        context = SimpleNamespace(
+            scene=SimpleNamespace(snapform_settings=settings)
+        )
+        job = SimpleNamespace(status_path=Path("status.json"), progress_stage=1)
+
+        with patch.object(
+            self.addon.client,
+            "read_status",
+            return_value={
+                "progress": 0.1,
+                "message": "Downloading model",
+                "stage": 2,
+                "stages": 4,
+                "stage_label": "MoGe-2",
+            },
+        ), patch.object(operator, "_redraw_ui"):
+            operator._update_status(context, job)
+
+        self.assertEqual(job.progress_stage, 2)
+        self.assertEqual(settings.progress, 0.1)
+
     def test_model_options_mark_only_models_that_are_not_downloaded(self):
         items_callback = self.addon.SnapFormSettings.__annotations__["model"][
             "items"
@@ -1419,6 +1443,7 @@ class AddonTest(unittest.TestCase):
 
         parameters = request.payload["parameters"]
         self.assertEqual(request.payload["command"], "reconstruct")
+        self.assertEqual(parameters["inference_mode"], "joint")
         self.assertEqual(parameters["export_format"], "gs_ply")
         for parameter in (
             "process_res",
@@ -1660,6 +1685,10 @@ class AddonTest(unittest.TestCase):
             self.fake_bpy.data.objects.get = original_get
 
         self.assertEqual(reconstruct.call_args.kwargs["start_frame"], 71)
+        self.assertEqual(
+            reconstruct.call_args.kwargs["inference_mode"],
+            "per_frame",
+        )
 
     def test_reconstruct_request_accepts_image_depth_overrides(self):
         client = importlib.import_module("snapform.client")
diff --git a/tests/test_download_progress.py b/tests/test_download_progress.py
index 78d3f0a..6b71f01 100644
--- a/tests/test_download_progress.py
+++ b/tests/test_download_progress.py
@@ -110,10 +110,10 @@ class DownloadProgressTest(unittest.TestCase):
             status = json.loads(status_path.read_text(encoding="utf-8"))
             self.assertEqual(
                 status["message"],
-                "Downloading da3 small | 13.4 MB/s",
+                "Downloading da3 small 13.4 MB/s",
             )
 
-    def test_reports_estimated_time_remaining(self):
+    def test_does_not_report_estimated_time_remaining(self):
         times = iter((0.0, 10.0))
         with tempfile.TemporaryDirectory() as directory:
             status_path = Path(directory) / "status.json"
@@ -133,9 +133,9 @@ class DownloadProgressTest(unittest.TestCase):
             progress.update(50)
 
             status = json.loads(status_path.read_text(encoding="utf-8"))
-            self.assertEqual(status["eta_seconds"], 10)
+            self.assertNotIn("eta_seconds", status)
 
-    def test_staged_download_prefixes_speed_with_downloading(self):
+    def test_staged_download_keeps_model_label(self):
         class FakeTqdmWithRate(FakeTqdm):
             @property
             def format_dict(self):
@@ -165,7 +165,7 @@ class DownloadProgressTest(unittest.TestCase):
             status = json.loads(status_path.read_text(encoding="utf-8"))
             self.assertEqual(
                 status["message"],
-                "Downloading packages | 13.4 MB/s",
+                "Downloading da3 small 13.4 MB/s",
             )
             self.assertEqual(status["stage"], 6)
             self.assertEqual(status["stages"], 8)
diff --git a/tests/test_install_env.py b/tests/test_install_env.py
index 730d09a..5ea2c12 100644
--- a/tests/test_install_env.py
+++ b/tests/test_install_env.py
@@ -1,7 +1,9 @@
 import importlib.util
 import io
+import hashlib
 import json
 import os
+import shutil
 import subprocess
 import tarfile
 import tempfile
@@ -129,8 +131,8 @@ class InstallEnvTest(unittest.TestCase):
             if value == "--allow-pattern"
         ]
         self.assertEqual(patterns, ["onnx/model_fp16.onnx"])
-        self.assertNotIn("--stage", ben2_download)
-        self.assertNotIn("--stage-label", ben2_download)
+        self.assertIn("--stage", ben2_download)
+        self.assertIn("--stage-label", ben2_download)
         self.assertEqual(
             ben2_download[ben2_download.index("--label") + 1],
             "BEN2 Base",
@@ -305,7 +307,7 @@ class InstallEnvTest(unittest.TestCase):
             )
             self.assertEqual(called_command[-1], "da3 small")
 
-    def test_install_allocates_contiguous_progress_slices(self):
+    def test_install_resets_progress_for_each_stage(self):
         bootstrap = load_install_env()
         with tempfile.TemporaryDirectory() as directory:
             root = Path(directory)
@@ -358,21 +360,8 @@ class InstallEnvTest(unittest.TestCase):
             ):
                 bootstrap.install(args)
 
-            starts = [item[1] for item in stage_ranges]
-            ends = [item[2] for item in stage_ranges]
-            self.assertTrue(
-                all(starts[i] < starts[i + 1] for i in range(len(starts) - 1))
-            )
-            self.assertEqual(ends[-1], 1.0)
-            self.assertEqual(starts[0], bootstrap.ENVIRONMENT_SLICE[0])
-            runtime_ranges = stage_ranges[:2]
-            self.assertEqual(
-                [item[0] for item in runtime_ranges],
-                [1, 2],
-            )
-            self.assertTrue(
-                all(item[0] is None for item in stage_ranges[4:])
-            )
+            self.assertEqual(stage_ranges[:2], [(1, 0.0, 0.05), (1, 0.05, 1.0)])
+            self.assertEqual(stage_ranges[2:], [(2, 0.0, 1.0), (3, 0.0, 1.0)])
             status = json.loads(
                 (root / "status.json").read_text(encoding="utf-8")
             )
@@ -884,13 +873,12 @@ class InstallEnvTest(unittest.TestCase):
                 )
             )
 
-    def test_install_fails_when_bundled_uv_missing(self):
+    def test_install_fails_when_all_uv_sources_are_unavailable(self):
         bootstrap = load_install_env()
         with tempfile.TemporaryDirectory() as directory:
             root = Path(directory)
             venv_dir = root / ".venv"
             venv_dir.mkdir()
-            self.create_bundled_vendor(root)
             uv_path = root / "uv" / "uv.exe"
             args = SimpleNamespace(
                 uv=str(uv_path),
@@ -916,29 +904,23 @@ class InstallEnvTest(unittest.TestCase):
                 "rmtree",
             ), patch.object(
                 bootstrap,
-                "bundled_uv_archive",
-                return_value=None,
+                "download_uv_archive",
+                side_effect=RuntimeError("all sources unavailable"),
             ):
                 with self.assertRaisesRegex(
                     RuntimeError,
-                    "Bundled uv is missing",
+                    "all sources unavailable",
                 ):
                     bootstrap.install(args)
 
-    def test_install_uses_bundled_vendor_and_uv_without_network(self):
+    def test_install_downloads_and_extracts_uv(self):
         bootstrap = load_install_env()
         with tempfile.TemporaryDirectory() as directory:
             root = Path(directory)
             venv_dir = root / ".venv"
             venv_dir.mkdir()
-            bundled = root / "bundled"
-            bundled.mkdir()
-            (bundled / "depth-anything-3.tar.gz").write_bytes(b"da3")
-            (bundled / "ben2.tar.gz").write_bytes(b"ben2")
-            (bundled / "utils3d.tar.gz").write_bytes(b"utils3d")
-            (bundled / "moge.tar.gz").write_bytes(b"moge")
             target, archive_name = bootstrap.uv_download_target()
-            archive = bundled / f"uv-{target}.{archive_name}"
+            archive = root / f"uv-{target}.{archive_name}"
             if archive_name.endswith("zip"):
                 with zipfile.ZipFile(archive, "w") as bundle:
                     bundle.writestr("uv/uv.exe", b"uv-binary")
@@ -978,14 +960,18 @@ class InstallEnvTest(unittest.TestCase):
                 install_commands.append(command)
                 return []
 
+            def fake_download(destination, *_args):
+                shutil.copy2(archive, destination)
+                return destination
+
             with patch.object(
-                bootstrap,
-                "bundled_vendor_directory",
-                return_value=bundled,
-            ), patch.object(
                 bootstrap,
                 "resolve_indexes",
                 return_value=None,
+            ), patch.object(
+                bootstrap,
+                "download_uv_archive",
+                side_effect=fake_download,
             ), patch.object(
                 bootstrap,
                 "run",
@@ -1003,13 +989,6 @@ class InstallEnvTest(unittest.TestCase):
 
             self.assertEqual(uv_path.read_bytes(), b"uv-binary")
             all_commands = run_commands + install_commands
-            self.assertFalse(
-                any(
-                    "github.com" in str(value)
-                    for command in all_commands
-                    for value in command
-                )
-            )
             runtime_command = next(
                 command
                 for command in install_commands
@@ -1017,6 +996,9 @@ class InstallEnvTest(unittest.TestCase):
             )
             self.assertFalse(any(" @ file:" in str(value) for value in runtime_command))
             self.assertFalse(any("torch" in str(value) for value in runtime_command))
+            status = json.loads(Path(args.status).read_text(encoding="utf-8"))
+            self.assertEqual(status["stage"], 4)
+            self.assertEqual(status["stages"], 4)
 
     def test_install_reuses_existing_uv(self):
         bootstrap = load_install_env()
@@ -1062,6 +1044,78 @@ class InstallEnvTest(unittest.TestCase):
 
             self.assertEqual(uv_path.read_bytes(), b"binary")
 
+    def test_uv_download_falls_back_to_omoolab_and_verifies_checksum(self):
+        bootstrap = load_install_env()
+        content = io.BytesIO()
+        with zipfile.ZipFile(content, "w") as archive:
+            archive.writestr("uv/uv.exe", b"uv-binary")
+        payload = content.getvalue()
+
+        class Response(io.BytesIO):
+            headers = {"Content-Length": str(len(payload))}
+
+        with tempfile.TemporaryDirectory() as directory:
+            root = Path(directory)
+            destination = root / "uv.tmp"
+            status = root / "status.json"
+            urls = []
+            clock_state = {"now": 0.0}
+
+            def clock():
+                clock_state["now"] += 0.25
+                return clock_state["now"]
+
+            def open_url(request):
+                urls.append(request.full_url)
+                if len(urls) == 1:
+                    raise OSError("official unavailable")
+                return Response(payload)
+
+            with patch.object(
+                bootstrap,
+                "uv_download_target",
+                return_value=("test-target", "zip"),
+            ), patch.dict(
+                bootstrap.UV_ARTIFACTS,
+                {
+                    "test-target": (
+                        "uv-test.zip",
+                        hashlib.sha256(payload).hexdigest(),
+                    )
+                },
+            ), patch.dict(
+                bootstrap._uv_download_openers,
+                {
+                    bootstrap.UV_OFFICIAL_BASE_URL: SimpleNamespace(
+                        open=open_url
+                    ),
+                    bootstrap.UV_MIRROR_BASE_URL: SimpleNamespace(
+                        open=open_url
+                    ),
+                },
+            ), patch.object(
+                bootstrap,
+                "write_status",
+            ) as write_status:
+                result = bootstrap.download_uv_archive(
+                    destination,
+                    status,
+                    0.0,
+                    1.0,
+                    {},
+                    clock=clock,
+                )
+
+            self.assertEqual(result.read_bytes(), payload)
+            self.assertTrue(urls[0].startswith(bootstrap.UV_OFFICIAL_BASE_URL))
+            self.assertTrue(urls[1].startswith(bootstrap.UV_MIRROR_BASE_URL))
+            self.assertEqual(bootstrap.UV_OFFICIAL_CONNECT_TIMEOUT, 3.0)
+            self.assertEqual(bootstrap.UV_MIRROR_CONNECT_TIMEOUT, 15.0)
+            messages = [call.args[2] for call in write_status.call_args_list]
+            self.assertTrue(any("uv (mirror)" in value for value in messages))
+            self.assertTrue(any("B/s" in value for value in messages))
+            self.assertFalse(any("left" in value for value in messages))
+
     def test_install_stages_use_only_runtime_packages(self):
         bootstrap = load_install_env()
         with tempfile.TemporaryDirectory() as directory:
@@ -1244,15 +1298,13 @@ class InstallEnvTest(unittest.TestCase):
         )
         self.assertEqual(report, {})
 
-    def test_install_uv_extracts_bundled_archive(self):
+    def test_install_uv_extracts_downloaded_archive(self):
         bootstrap = load_install_env()
         with tempfile.TemporaryDirectory() as directory:
             root = Path(directory)
             uv_path = root / "uv"
-            bundled = root / "bundled"
-            bundled.mkdir(parents=True)
             target, archive_name = bootstrap.uv_download_target()
-            archive = bundled / f"uv-{target}.{archive_name}"
+            archive = root / f"uv-{target}.{archive_name}"
             if archive_name.endswith("zip"):
                 with zipfile.ZipFile(archive, "w") as bundle:
                     bundle.writestr("uv/uv.exe", b"uv-binary")
@@ -1262,30 +1314,32 @@ class InstallEnvTest(unittest.TestCase):
                     info = tarfile.TarInfo("uv")
                     info.size = len(content)
                     tar.addfile(info, io.BytesIO(content))
+            def fake_download(destination, *_args):
+                shutil.copy2(archive, destination)
+                return destination
+
             with patch.object(
                 bootstrap,
-                "bundled_vendor_directory",
-                return_value=bundled,
+                "download_uv_archive",
+                side_effect=fake_download,
             ):
                 bootstrap.install_uv(uv_path, str(root / "status.json"))
 
             self.assertEqual(uv_path.read_bytes(), b"uv-binary")
 
-    def test_install_uv_raises_when_bundled_missing(self):
+    def test_install_uv_raises_when_download_fails(self):
         bootstrap = load_install_env()
         with tempfile.TemporaryDirectory() as directory:
             root = Path(directory)
             uv_path = root / "uv"
-            bundled = root / "bundled"
-            bundled.mkdir()
             with patch.object(
                 bootstrap,
-                "bundled_vendor_directory",
-                return_value=bundled,
+                "download_uv_archive",
+                side_effect=RuntimeError("all uv sources failed"),
             ):
                 with self.assertRaisesRegex(
                     RuntimeError,
-                    "Bundled uv is missing",
+                    "all uv sources failed",
                 ):
                     bootstrap.install_uv(uv_path, str(root / "status.json"))
 
diff --git a/tests/test_pack.py b/tests/test_pack.py
index 3679248..2cd388d 100644
--- a/tests/test_pack.py
+++ b/tests/test_pack.py
@@ -61,21 +61,11 @@ class PackTest(unittest.TestCase):
                 self.assertIn("service.py", names)
                 self.assertNotIn("snapform/__init__.py", names)
                 self.assertNotIn("importer.py", names)
-                self.assertIn(
-                    f"vendor/{pack.PLATFORMS[platform]}",
-                    names,
-                )
                 self.assertFalse(
                     any(name.startswith("sources/") for name in names)
                 )
-                bundled_uv = {
-                    name
-                    for name in names
-                    if name.startswith("vendor/uv-")
-                }
-                self.assertEqual(
-                    bundled_uv,
-                    {f"vendor/{pack.PLATFORMS[platform]}"},
+                self.assertFalse(
+                    any(name.startswith("vendor/") for name in names)
                 )
                 self.assertIn(f'platforms = ["{platform}"]', manifest)
                 self.assertNotIn(
diff --git a/tests/test_prepare_vendor.py b/tests/test_prepare_vendor.py
deleted file mode 100644
index fd8ea24..0000000
--- a/tests/test_prepare_vendor.py
+++ /dev/null
@@ -1,67 +0,0 @@
-import hashlib
-import importlib.util
-import io
-import tempfile
-import unittest
-from pathlib import Path
-from unittest.mock import patch
-
-
-PROJECT_ROOT = Path(__file__).resolve().parents[1]
-
-
-def load_prepare_vendor():
-    specification = importlib.util.spec_from_file_location(
-        "snapform_prepare_vendor",
-        PROJECT_ROOT / "prepare_vendor.py",
-    )
-    module = importlib.util.module_from_spec(specification)
-    specification.loader.exec_module(module)
-    return module
-
-
-class PrepareVendorTest(unittest.TestCase):
-    def test_downloads_and_verifies_artifact(self):
-        prepare = load_prepare_vendor()
-        content = b"locked artifact"
-        artifact = {
-            "filename": "artifact.tar.gz",
-            "url": "https://example.invalid/artifact.tar.gz",
-            "sha256": hashlib.sha256(content).hexdigest(),
-        }
-        with tempfile.TemporaryDirectory() as directory, patch.object(
-            prepare.urllib.request,
-            "urlopen",
-            return_value=io.BytesIO(content),
-        ):
-            path = prepare.download_artifact(artifact, Path(directory))
-            self.assertEqual(path.read_bytes(), content)
-
-    def test_rejects_hash_mismatch_without_leaving_partial_file(self):
-        prepare = load_prepare_vendor()
-        artifact = {
-            "filename": "artifact.tar.gz",
-            "url": "https://example.invalid/artifact.tar.gz",
-            "sha256": hashlib.sha256(b"expected").hexdigest(),
-        }
-        with tempfile.TemporaryDirectory() as directory, patch.object(
-            prepare.urllib.request,
-            "urlopen",
-            return_value=io.BytesIO(b"unexpected"),
-        ):
-            destination = Path(directory)
-            with self.assertRaisesRegex(RuntimeError, "SHA-256 mismatch"):
-                prepare.download_artifact(artifact, destination)
-            self.assertFalse((destination / artifact["filename"]).exists())
-            self.assertFalse(
-                (destination / f"{artifact['filename']}.part").exists()
-            )
-
-    def test_rejects_unknown_platform(self):
-        prepare = load_prepare_vendor()
-        with self.assertRaisesRegex(ValueError, "Unsupported platform"):
-            prepare.prepare(["windows-arm64"])
-
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/tests/test_worker.py b/tests/test_worker.py
index fd5198b..e0ef592 100644
--- a/tests/test_worker.py
+++ b/tests/test_worker.py
@@ -369,7 +369,7 @@ class WorkerTest(unittest.TestCase):
             "_verify_model_complete",
             return_value=None,
         ):
-            args.model_dir = str(Path(directory) / "model")
+            args.model_dir = str(Path(directory) / "models" / "DA3")
             args.status = str(Path(directory) / "status.json")
             self.worker.download_model(args)
 
@@ -456,7 +456,7 @@ class WorkerTest(unittest.TestCase):
             "_verify_model_complete",
             return_value=None,
         ):
-            args.model_dir = str(Path(directory) / "model")
+            args.model_dir = str(Path(directory) / "models" / "DA3")
             args.status = str(Path(directory) / "status.json")
             self.worker.download_model(args)
 
@@ -937,15 +937,21 @@ class WorkerTest(unittest.TestCase):
         self.assertEqual(mesh_calls[0][2:], (35.0, True, 0.2))
 
     def test_reconstruct_copies_frames_for_multi_frame_input(self):
+        inference_inputs = []
         fake_da3 = ModuleType("da3_onnx")
         fake_da3.create_session = lambda _model_dir, _device: object()
-        fake_da3.infer = lambda *_args, **_kwargs: SimpleNamespace(
-            depth=np.full((2, 2, 2), 2.0, dtype=np.float32),
-            conf=np.ones((2, 2, 2), dtype=np.float32),
-            extrinsics=np.repeat(np.eye(4, dtype=np.float32)[None, :3], 2, axis=0),
-            intrinsics=np.repeat(np.eye(3, dtype=np.float32)[None], 2, axis=0),
-            processed_images=np.zeros((2, 2, 2, 3), dtype=np.uint8),
-        )
+
+        def fake_infer(_session, images, **_options):
+            inference_inputs.append(images)
+            return SimpleNamespace(
+                depth=np.full((1, 2, 2), 2.0, dtype=np.float32),
+                conf=np.ones((1, 2, 2), dtype=np.float32),
+                extrinsics=np.eye(4, dtype=np.float32)[None, :3],
+                intrinsics=np.eye(3, dtype=np.float32)[None],
+                processed_images=np.zeros((1, 2, 2, 3), dtype=np.uint8),
+            )
+
+        fake_da3.infer = fake_infer
         fake_runtime = ModuleType("onnx_runtime")
         fake_runtime.provider_label = lambda _session: "CPU"
 
@@ -979,6 +985,7 @@ class WorkerTest(unittest.TestCase):
                     show_cameras=0,
                     gs_views_interval=1,
                     remove_background_model_dir="",
+                    inference_mode="per_frame",
                 )
                 self.worker.reconstruct(args)
 
@@ -989,6 +996,10 @@ class WorkerTest(unittest.TestCase):
             self.assertTrue(
                 (result_directory / "frame.0002.jpg").is_file()
             )
+            self.assertEqual(len(inference_inputs), 2)
+            self.assertTrue(all(len(paths) == 1 for paths in inference_inputs))
+            with np.load(result_directory / "results.npz") as result:
+                self.assertEqual(result["depth"].shape, (2, 2, 2))
             self.assertTrue(
                 (result_directory / "results.npz").is_file()
             )
diff --git a/vendor.lock.toml b/vendor.lock.toml
deleted file mode 100644
index fe40004..0000000
--- a/vendor.lock.toml
+++ /dev/null
@@ -1,19 +0,0 @@
-schema_version = 1
-
-[uv]
-version = "0.11.3"
-
-[platforms.windows-x64]
-filename = "uv-x86_64-pc-windows-msvc.zip"
-url = "https://github.com/astral-sh/uv/releases/download/0.11.3/uv-x86_64-pc-windows-msvc.zip"
-sha256 = "ae681c0aaec7cc96af184648cb88d73f8393ed60fa5880abdd6bdb910f9b227c"
-
-[platforms.macos-arm64]
-filename = "uv-aarch64-apple-darwin.tar.gz"
-url = "https://github.com/astral-sh/uv/releases/download/0.11.3/uv-aarch64-apple-darwin.tar.gz"
-sha256 = "2bc3d0c7bf2bd08325b1e170abac6f7e5b3346e1d4eab3370d17cefec934996f"
-
-[platforms.linux-x64]
-filename = "uv-x86_64-unknown-linux-gnu.tar.gz"
-url = "https://github.com/astral-sh/uv/releases/download/0.11.3/uv-x86_64-unknown-linux-gnu.tar.gz"
-sha256 = "c0f3236f146e55472663cfbcc9be3042a9f1092275bbe3fe2a56a6cbfd3da5ce"