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ngp_renderer's Introduction

NGP_Renderer

Introduction

一个简单的 Instant-NGP 渲染仿真器。

实现这个仿真器的主要目的：

  1. 督促自己了解和掌握 NGP 的实现细节
  2. 适当锻炼代码能力
  3. 为 ISCAS 的实验搭建基础框架

仿真器的功能

  • 读取 .msgpack 并正确加载到 tiny-cuda-nn 的网络中（暂时只支持 nerf_synthetic）
    • 是的，连 FOX 都不能跑，问就是 Ray Marching 部分还米有实现好
    • 但这部分并不简单，事实上大部分 NGP 的复现都抛弃了 .msgpack ，比如 torch-ngp
  • 渲染出图片
    • 已经结合 NeRFAcc 实现了快速渲染！

后续开发计划？

  • 在这个版本里对 Ray Marching 做仿真
  • 以 C++ 为基础的项目实现

文件结构：

  • main_new.py 是结合 NeRFAcc 的版本，速度很快
  • main_old.py 是手写版本的主程序，主要手写了渲染部分
  • main_naive_ngp.py 是用朴素的 ray marching 加上多像素并行实现的版本，速度更快一点

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