摘要： 第一步 第二步 转到NDC: 因为目前只有 \(-1 \le y' \le 1\),对于 \(x'\)可以除与\(r\) 所以: \[x' = \frac{x}{rz \tan(\alpha/2)} \tag{eq. 5.1} \]\[y' = \frac{y}{z \tan(\alpha/2)} 阅读全文

摘要： P_camera.x = dot(P - eye, right) P_camera.y = dot(P - eye, up) P_camera.z = dot(P - eye, forward) // 展开矩阵形式： [ P_camera.x ] [ right.x right.y right.z 阅读全文

摘要： CC 阅读全文

摘要： Progressive Path Tracing with Explicit Light Sampling 来源 There are multiple areas in path tracing that can be importance sampled. In addition, each of 阅读全文

摘要： 地理坐标系(Geographic coordinate system)：就是椭球体的球面坐标系统。椭球体具有特点：具有长半轴，短半轴，偏心率。以经纬度线划分表面区域，和定位坐标。 投影坐标体系：实质上是一个平面坐标系统，就是将椭球体表面的空间坐标投影到一个平面上的坐标体系。就是我们常用的地图坐标。也 阅读全文

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摘要： lenses and apertures Photo Demonstration Depth of field Depth of field (DoF) is one of the most important concepts in photography. Many photographers 阅读全文

摘要： CMake Build Configuration for the Ray Tracing See README.md for guidance. cmake_minimum_required ( VERSION 3.1.0...3.27.0 ) set (prjName ht_master_sec 阅读全文

摘要： lenses and apertures Photo Demonstration Depth of field Depth of field (DoF) is one of the most important concepts in photography. Many photographers 阅读全文

摘要： What Determines the Colors We See Light - The Electromagnetic Signal It is the spectral composition, the energy spectral distribution \(L(\lambda)\) o 阅读全文