# AstrAI Promo — 动画渲染

Manim 驱动的技术动画，用于 AstrAI 宣传视频。

## 依赖

```bash
pip install manim
# 或: conda install -c conda-forge manim
```

## 渲染单个场景

```bash
# 1080p（推荐）
manim -qh promo/continuous_batching.py ContinuousBatching

# 480p 草稿
manim -ql promo/continuous_batching.py ContinuousBatching

# 4K
manim -4k promo/continuous_batching.py ContinuousBatching
```

## 渲染全部

```bash
python promo/render_all.py
```

输出到 `promo/output/videos/`。

## 场景清单

| 文件 | Scene class | 内容 | 建议时长 |
|------|-------------|------|---------|
| `transformer.py` | `Transformer` | GQA 注意力机制详解 (Q/K/V→RoPE→Attention→O) + 规格卡 | ~25s |
| `continuous_batching.py` | `ContinuousBatching` | 4 阶段流水线 + 吞吐对比 | ~30s |
| `paged_cache.py` | `PrefixCache` | 分页 KV 缓存：页表分配、按需扩容、回收 | ~30s |
| `architecture.py` | `Architecture` | 全栈架构逐层展开 | ~30s |

## 导入视频剪辑

输出的 `.mp4` 直接导入 DaVinci Resolve / Camtasia / Premiere Pro。