boblchen / pathtracer

Tile based pathtracer runs in OpenGL

GLSL-PathTracer

A physically based Path Tracer that runs in a GLSL Fragment shader.

This repo modified from the original repo： https://github.com/knightcrawler25/GLSL-PathTracer

Build

Support for Windows、MacOS、Ubuntu and test pass.

git clone https://github.com/BobLChen/PathTracer.git
cd PathTracer
mkdir build
cd build
cmake ..
make

Features

• Unidirectional PathTracing
• RadeonRays for building BVHs (Traversal is performed in a shader)
• Metallic-Roughness Material Model
• Texture Mapping (Albedo, Metallic, Roughness, Normal maps)
• Spherical and Rectangular Area Lights
• IBL with importance sampling
• Progressive + Tiled Rendering (Reduces GPU usage and timeout when depth/scene complexity is high)

TODO

• Support for different texture sizes
• Support for different model format
• Support for different light types
• Support for different material model

Sample Scenes

These assets modified from the origin repo. Link to origin repo:https://github.com/knightcrawler25/GLSL-PathTracer Assets:https://drive.google.com/file/d/1SK9fRyzvpHBNBFb0Gc6nDvDkH7AHVj6H/view?usp=sharing

Screenshots

pathtracer's Issues

mac 10.15 Catalina cannot work correctly

Hitpoint & Debug

读了您的代码，很有启发。感谢您的分享。本人电气专业，好多不理解的地方。想问作者三个问题：1）求交点的代码在shader程序Closesthit.glsl中吗？相交三角形序号是这条语句吗？state.triID = vert_indices; 2）如何单步调试shader，renderdoc可以吗？3）AMD显卡也可以运行这个代码吗？我觉得是可以的。谢谢！

Could you please provide some documents or explanation of codes?

Hi dear author,
It's a great honor to open one issue here, truly honor. I just begin to learn computer graphics and have compiled your program successfully, but it is hard for me to read the codes, could you please provide some explanation or PPT or papers about the code to me? 👍

thank you
Best Regards with kindness
William