使用指南 — Remy 3D 照片自定义特效运镜工具

1. 快速入门：加载 3D 模型

1. Quick Start: Loading 3D Models

系统支持从 Remy3D、Kiri Engine 与 Insta360 分享链接解析并展示 3D 照片模型：

The system supports fetching and rendering 3DGS models from Remy3D, Kiri Engine, and Insta360 share URLs:

通过分享链接加载：在首页中央的输入框（或者在模型加载后的顶部菜单栏）粘贴 Remy3D、Kiri Engine 或 Insta360 分享地址，然后点击「加载」按钮。系统会自动解析并加载 PLY、Splat 或 SOG 模型。

Load via Share Link: Paste a Remy3D, Kiri Engine, or Insta360 share URL in the centered input box (or in the top toolbar after loading), then click the Load button. The system automatically fetches, parses, and loads PLY, Splat, or SOG model data.

2. 基础操作：场景视角与常规调节

2. Basic Operations: Viewport & Adjustments

视角旋转：在 3D 画布区域，按住 鼠标左键 并拖拽。
视角平移：按住 鼠标右键 并拖拽。
场景缩放：滚动 鼠标中键滚轮。系统支持极小距离缩放，可将视角拉得极近来观测模型微小细节。
渲染模式切换：
- 3D 实景：照片级写实的高保真 3D 高斯着色画面。新导入模型默认关闭背景裁剪；可在「渲染设置 → 3DGS 设置」中开启并调整裁剪范围与形状，后续切换菜单时会保留设置。
- 粒子模式：展现充满未来科技感的荧光圆点粒子状态。

Rotate View: Press and hold the Left Mouse Button and drag on the 3D canvas area.
Pan View: Press and hold the Right Mouse Button and drag.
Zooming: Scroll the Middle Mouse Wheel. The system supports micro-distance zooming, allowing you to get extremely close to observe fine details of the model.
Initial Auto-Fit Zoom: When a model loads, regardless of the background filter radius, the default camera will accurately align and fit to a 1x radius distance of the model's centroid, placing the subject directly in the center at close range.
Toggle Render Mode & Clipping Rules:
- 3D Reality Mode: Photorealistic high-fidelity 3D Gaussian Splatting rendering. Background cropping is off for each newly imported model. Open Rendering Settings → 3DGS Settings to enable it and adjust its bounds or shape; the setting is then preserved while navigating between menus.
- Point Cloud Mode: Renders glowing holographic-style floating point cloud particles. Under this mode, the background is automatically filtered to a clean 2.5x model radius to exclude messy environmental noise points.

3. 电影级运镜录制与 19 套内置运镜预设

3. Cinematic Flight Path Recording & 19 Built-in Presets

点击顶部的 镜头运镜 开启运镜控制台，制作属于您的电影级运镜视频：

Click the Camera Path button at the top to open the flight path console and record your own aerial tracking videos:

新增：19 套复合型运镜

我们内置了 19 套高级运镜预设（包含希区柯克滑动变焦、8 字形无限循环、空间纵深进入、横向平移扫景与朝外环绕等）。这些预设轨迹完全基于您当前的缩放大小与仰角动态计算。

New: 19 Built-in Camera Paths

We have integrated 19 advanced camera presets, including Hitchcock Dolly Zoom, Figure-8 loops, spatial depth entry, lateral scene sweeps, and outward-facing spatial orbits. These trajectories are dynamically calculated from the current zoom and pitch.

使用内置运镜预设：在运镜预设下拉菜单中选择一套内置运镜（如希区柯克变焦），点击预览即可开始预览。在预览运行期间，网页会自动锁定页面缩放防止误触。
自定义记录关键帧：选择自定义关键帧模式，调整视角后点击 添加关键帧记录视角（桌面端不限制关键帧数量，手机端最多 10 个），再点击预览即可沿轨迹平滑运镜。
每秒 60 帧导出视频：无论选择预设还是自定义路径，点击 导出视频都会自动启用 1080p 渲染并生成每秒 60 帧的 MP4 视频，完成后即可保存。

Built-in Presets: Select a flight path preset from the Flight Path Preset dropdown (e.g., Hitchcock Dolly Zoom), then click Preview to begin. During the preview, page zoom controls are locked to avoid misclicks.
Custom Keyframes: Under the None (Custom Keyframes) mode, adjust your viewpoint, click Add Keyframe (supports 2 to 5 frames), and click Preview to fly smoothly along your custom path.
60FPS Video Export: Click Export 1080p MP4 under any mode. The system triggers offscreen 1080p WebGL rendering with a decoupled virtual timestamp step. Regardless of GPU lag, the exported MP4/WebM video is guaranteed to have a constant 60 FPS playback rate and will download automatically.

4. 核心体验：智能手势追踪

4. Core Experience: Intelligent AI Gesture Tracking

点击工具栏的 手势控制按钮并授权摄像头。开启后，在摄像头前展示特定手势即可控制场景：

Click the Gesture button in the toolbar to grant camera access. Once enabled, display specific gestures in front of the camera to control the scene:

识别小贴士

请保持手部光线充足并距摄像头 0.5 ~ 1.5 米。系统内置 8 帧防抖动缓冲和低通指数平滑滤波，动作表现非常柔和线性，不用担心手发抖导致画面乱颤。

Detection Tips

Please ensure adequate lighting and maintain a distance of 0.5 to 1.5 meters from the camera. The system features an 8-frame anti-shake buffer and low-pass exponential smoothing filters for smooth, linear motion feedback.

手势	动作名称	交互效果
Gesture	Name	Interaction
	张开手掌	Open Palm	粒子散开消散：在粒子模式下，模型粒子将根据您的手指张开幅度向四周扩散消散。	Particle Dispersal: In Point Cloud mode, particles will scatter outwards based on how wide you open your palm.
	攥拳头	Closed Fist	粒子聚拢收缩：在粒子模式下，已散开的粒子会向中心收缩，拼回原本的密集模型。	Particle Assembly: In Point Cloud mode, scattered particles will gather back towards the center to restore the dense model.
	剪刀手	Victory	切换渲染模式：在摄像头前比出该手势并保持超过 0.7 秒可触发切换。会在 3D 实景与粒子模式之间进行切换。	Toggle Render Mode: Strike the Victory sign and hold it for over 0.7 seconds to toggle rendering between 3DGS mode and Point Cloud mode.
	双手攥拳	Two Fists	双手距离缩放：同时展示两只手的攥拳状态。当两拳距离靠近或拉远时，可以无级调整 3D 模型的物理尺寸大小。	Two-Hand Distance Zoom: Present two closed fists. Bring your fists closer or further apart to dynamically scale the 3D model size.
	食指指向	Pointing Up	遥控相机视角：比出单指指向上方后，在空中移手，相机会精确跟踪您的食指指尖轨迹进行平滑视角旋转。	Remote Camera Rotation: Show a pointing finger and move your hand. The camera will smoothly follow the trajectory of your index finger tip.