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content/posts/foundation/pt-6-path-tracing-adventures.md

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author: mos9527
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lastmod: 2025-12-27T12:59:57.680985
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lastmod: 2025-12-27T15:22:38.143723
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title: Foundation 施工笔记 【6】- 路径追踪
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tags: ["CG","Vulkan","Foundation"]
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categories: ["CG","Vulkan"]
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<summary>Cycles 参考</summary>
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<img src="/image-foundation/image-20251226174553084.png"></img>
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</details>
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#### Lumberyard Bistro
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来自 https://github.com/zeux/niagara_bistro。植被渲染需要透明度支持,这里现存的naive实现too simple:他很慢 —— anyhit跑一遍,shadow ray还要跑一遍,没考虑mip就采样等等。
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<summary>Cycles 参考</summary>
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<img src="/image-foundation/image-20251227100632285.png"></img>
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</details>
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#### Blender Classroom
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来自 https://www.blender.org/download/demo-files/
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结果就是基本手动调了一遍。此外因为没有volume rendering,原场景的体积光在此没有加入。
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直接光源+很多(4个...)自发光光源演示
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直接光源+多个自发光光源演示
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![image-20251227124745391](/image-foundation/image-20251227124745391.png)
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<details>
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<summary>Cycles 参考</summary>
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(Cycles不知道怎么回事,貌似弄错了BaseColor材质的color space)
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<img src="/image-foundation/image-20251227124800418.png"></img>
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</details>
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