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透明立绘转 DDS

将透明立绘自动或手动构图后导出为 DDS,每次处理一张图片。默认输出 1024×1024、BC3/DXT5,保留透明度。

安装

需要 Python 3.12+;Windows 自动处理请使用 Python 3.12。

# 自动处理(CPU)和手动界面
python -m pip install --upgrade "anime-core-lib-portrait-tool[auto,gui]"

# NVIDIA GPU 自动处理和手动界面
python -m pip install --upgrade "anime-core-lib-portrait-tool[gpu,gui]"

# 仅图片读取、渲染和编码接口
python -m pip install --upgrade anime-core-lib-portrait-tool

auto 和 gpu 二选一。另需自行安装 NVTT 或 texconv,并在调用时指定可执行文件路径。

从源码安装(GPU 环境将 auto 换为 gpu):

git clone https://github.com/cwlm/anime_core_lib_portrait_tool.git
cd anime_core_lib_portrait_tool
python -m pip install -e ".[auto,gui]"

命令行

portrait auto --input source.png --output result.dds --encoder nvtt --encoder-path 'C:/Tools/nvtt_export.exe' --model-cache ./models
portrait manual --input source.png --output result.dds --encoder texconv --encoder-path 'C:/Tools/texconv.exe'

默认不覆盖已有文件,添加 --overwrite 可覆盖。自动处理无法确定主脸时需自行改用 manual;退出码为 0 已保存、2 需手动或已取消、1 错误。

自动处理需要模型缓存,--model-cache 指定缓存目录。命令行默认离线,首次下载模型时先在 PowerShell 执行 $env:HF_HUB_OFFLINE = "0"。

手动窗口:左键拖动、滚轮缩放图片;Ctrl+滚轮缩放视图,中键或右键平移视图。右侧可输入缩放和位置,点击“保存 DDS”或 Ctrl+S 导出,取消不写文件。辅助框不写入输出。

自动构图按脸部参考尺寸取景;如果完整内容取景使脸缩到目标尺度的 75% 以下,会使用包含主脸的人物框重新取景,允许外围舰装或特效超出画布。人物框未检出、不能改善构图或人物模型不可用时,保留完整内容取景。

自定义构图

自动和手动处理都可通过 --layout layout.json 加载配置,格式见 examples/layout.json。

canvas 为画布尺寸,anchor 为脸部中心,face_size 为脸部参考尺寸,anchor_x/anchor_y 为脸部中心活动范围,margin 为内容边距,单位均为输出像素。调整画布时需同步调整脸部位置和范围。

Python 接口

from anime_core_lib_portrait_tool.auto import prepare

saved = prepare("source.png", "result.dds",
                encoder="texconv", encoder_path="C:/Tools/texconv.exe")

手动处理改为从 anime_core_lib_portrait_tool.manual 导入 prepare。自动处理返回 False 表示需手动构图;手动处理返回 False 表示取消,保存成功均返回 True,处理错误会抛出异常。

两个入口都支持 layout=load_layout("layout.json") 和 overwrite=True。load_layout、Layout 以及底层接口 read_image、estimate_transform、render、write_dds 可从包顶层导入。

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