{"id":17086181,"url":"https://github.com/kach/voxel","last_synced_at":"2026-02-03T17:37:36.065Z","repository":{"id":66653329,"uuid":"83991321","full_name":"kach/voxel","owner":"kach","description":"Yet another raytracer, because we don't have enough of those already","archived":false,"fork":false,"pushed_at":"2017-03-05T18:18:41.000Z","size":167,"stargazers_count":5,"open_issues_count":0,"forks_count":0,"subscribers_count":4,"default_branch":"master","last_synced_at":"2025-06-24T10:11:36.283Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"Scheme","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/kach.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2017-03-05T18:10:36.000Z","updated_at":"2020-05-30T05:21:03.000Z","dependencies_parsed_at":"2023-04-11T17:17:16.440Z","dependency_job_id":null,"html_url":"https://github.com/kach/voxel","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/kach/voxel","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kach%2Fvoxel","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kach%2Fvoxel/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kach%2Fvoxel/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kach%2Fvoxel/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/kach","download_url":"https://codeload.github.com/kach/voxel/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kach%2Fvoxel/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":29051009,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-02-03T15:43:47.601Z","status":"ssl_error","status_checked_at":"2026-02-03T15:43:46.709Z","response_time":96,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-10-14T13:27:48.823Z","updated_at":"2026-02-03T17:37:36.045Z","avatar_url":"https://github.com/kach.png","language":"Scheme","funding_links":[],"categories":[],"sub_categories":[],"readme":"Sometime in June 2016 I decided to revisit raytracers, and to see how much of a\nraytracer I could build without looking anything up. `voxel.scm` is a full\nrecursive raytracer optimized for voxels. It uses the Phong illumination model\n(ambient + diffuse + specular). Nothing fancy.\n\n`voxel.scm` contains a homemade BMP encoder, and, with appropriate `load-*`\nheaders, it should work with any R5RS Scheme implementation. I tested it with\nChicken and Racket, and also with Biwas though Biwas was sadly too slow to be\npractical.\n\nThis is the kind of thing `voxel.scm` can do very quickly:\n\n![Here's a thing](temp.png)\n\nIt turns out you can find a [CT\nscan](http://graphics.stanford.edu/data/voldata/voldata.html#bunny) of the\nStanford Bunny online. This is what you get if you approximate it with a\nhundred voxels:\n\n![Here's a bunny](bunny.png)\n\nFor comparison, here's some output from my old (December 2012) raytracer:\n\n![Here's a sphere](sphere.png)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkach%2Fvoxel","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fkach%2Fvoxel","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkach%2Fvoxel/lists"}