https://blog.demofox.org/2020/05/25/casual-shadertoy-path-tracing-1-basic-camera-diffuse-emissive/
Posts in this series: Basic Camera, Diffuse, Emissive Image Improvement and Glossy Reflections Fresnel, Rough Refraction & Absorption, Orbit Camera Below...
path tracingcasualshadertoybasiccamera