Dino GPU

Dino GPU is the GPU version of Dino, which I use to experiment with interactive rendering. This project evolved from my very first path tracer. It is written in C++, and uses OptiX 7 for ray tracing, CUDA for miscellaneous GPU processing, and OpenGL for the interactive viewer.

Features

interactive, progressive rendering in OpenGL window
OptiX 7 ray intersections
Mitsuba-style BSDF plugins
texture mapping for arbitrary BSDF channels
multiple supported integrators (path tracing and light tracing)
next event estimation
multiple importance sampling for direct lighting
Russian roulette
Beer's law attenuation
depth of field
HDR environment maps
model instancing
Phong surface normal interpolation
JSON scene files
Wavefront .obj model loading

Beer's law attenuation through a transparent object. Dragon model courtesy of Stanford Computer Graphics Laboratory.

Complex object with multiple materials, environment mapping. Duesen Bayern Mystar 190 SL model by TurboSquid user desmonster. Bethnal Green Entrance environment map courtesy of HDRI Haven.

Multiple objects, texture mapping, and depth of field. Modified version of Interior Set scene by TurboSquid user IvanMasanin.