PBRT reading notes 2

最新推荐文章于 2024-03-29 13:25:37 发布

saintony

最新推荐文章于 2024-03-29 13:25:37 发布

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分类专栏： Graphics 文章标签： signal basic

本文链接：https://blog.youkuaiyun.com/saintony/article/details/5634157

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本文主要介绍了图形渲染中几个核心章节的内容，包括交集加速、颜色与辐射度、相机模型及采样与重建等。文章重点讲解了采样与重建章节，不仅涵盖了基本理论，还介绍了一些实用的采样与重建技巧，对实际项目非常有用。

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This is the note for reading Chapter 4 to 7: Intersection acceleration, Color & Radiometry, Camera Models and Sampling & Reconstruction.

Chapter 4 and 5 (Intersection acceleration, Color & Radiometry) actually don’t bring anything seminal except some common knowledges, as kd-tree, radiometry etc.

Chapter 6 (Camera Models) introduces the modeling of lens that enables the “depth of field” feature in images, besides the common knowledge on orthogonal/perspective projections.

Chapter 7 (Sampling & Reconstruction) is very informative and helpful. The authors not only introduce the basic sampling/reconstruction theories, several interesting sampling/reconstruction techniques are also introduced. I learnt a lot from this chapter. Before this I never realized that sampling/reconstruction can take such a key effect in the final images. Many practical and useful hints for sampling/reconstruction strategies are elaborated, which are very useful for practical projects. The background for this chapter is Signal Processing. It is a big field to dig…