ray-tracing/images/image4.ppm, branch master

ray-tracing/images/image4.ppm, branch master Ray Tracing in One Weekend https://git.richardqin.org/ray-tracing/atom?h=master 2026-03-10T17:34:04Z Shading with Surface Normals 2026-03-10T17:34:04Z Richard Qin richard.qin.x@gmail.com 2026-03-10T17:34:04Z urn:sha1:1c94e5e61537a1d48052d14f988e565a8ca8b616