Retopology Example: Roman Oil Lamp

Inspired by [Thomas Flynn](https://sketchfab.com/nebulousflynn), who [did this exercise two years ago](https://skfb.ly/6REYQ), I retopologized and cleaned up a 3D scan of a Roman oil lamp.

[Original model](https://skfb.ly/6GKPZ) by [laurashea](https://sketchfab.com/laurashea), re-shared here under Creative Commons Attribution license.

Workflow:

1. Imported the OBJ into [Blender](https://www.blender.org/)
2. Retopologized the mesh using [Quad Remesher](https://tinyurl.com/y6am8v74)
3. Sculpted in the wick hole to remove scan artifacts
4. Marked seams and UV unwrapped, then packed islands with [UVPackmaster 2](https://tinyurl.com/y8mxj4jg)
5. Baked the diffuse, normal, and ambient occlusion maps from the high-resolution to low-resolution model using [SimpleBake](https://tinyurl.com/y46tl7ne)
7. Retouched the diffuse, normal, and AO maps in [Photoshop](https://tinyurl.com/cz8u7ql)
6. Uploaded to Sketchfab, and added a background, lighting, and post-processing effects

Source: Objaverse 1.0 / Sketchfab

本项目灵感源自[托马斯·弗林（Thomas Flynn）](https://sketchfab.com/nebulousflynn)——其两年前曾完成过同类练习（[链接](https://skfb.ly/6REYQ)），我对一件古罗马油灯的三维扫描模型进行了拓扑重构与清理优化。

[原始模型](https://skfb.ly/6GKPZ)由[laurashea](https://sketchfab.com/laurashea)制作，本次以知识共享署名许可协议重新分享于此。

工作流程：
1. 将OBJ格式模型导入至[Blender](https://www.blender.org/)软件
2. 使用[Quad Remesher](https://tinyurl.com/y6am8v74)工具对网格进行拓扑重构
3. 雕刻灯芯孔以消除扫描伪影
4. 标记接缝并执行UV展开，随后使用[UVPackmaster 2](https://tinyurl.com/y8mxj4jg)工具排布UV孤岛
5. 使用[SimpleBake](https://tinyurl.com/y46tl7ne)工具，将高分辨率模型的漫反射、法线及环境光遮蔽贴图烘焙至低分辨率模型
7. 使用[Photoshop](https://tinyurl.com/cz8u7ql)对漫反射、法线与环境光遮蔽贴图进行修色优化
6. 将模型上传至Sketchfab，并添加背景、灯光及后期处理效果

数据来源：Objaverse 1.0 / Sketchfab