{"id":17208143,"url":"https://github.com/wolfpld/etcpak","last_synced_at":"2026-02-22T13:02:08.850Z","repository":{"id":39595689,"uuid":"190039862","full_name":"wolfpld/etcpak","owner":"wolfpld","description":"The fastest ETC compressor on the planet","archived":false,"fork":false,"pushed_at":"2025-03-02T16:42:01.000Z","size":3768,"stargazers_count":276,"open_issues_count":11,"forks_count":43,"subscribers_count":8,"default_branch":"master","last_synced_at":"2025-04-09T05:06:57.426Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"","language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"other","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/wolfpld.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":".github/FUNDING.yml","license":"LICENSE.txt","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":"AUTHORS.txt","dei":null,"publiccode":null,"codemeta":null},"funding":{"github":"wolfpld"}},"created_at":"2019-06-03T16:11:55.000Z","updated_at":"2025-04-08T07:44:53.000Z","dependencies_parsed_at":"2024-03-23T18:26:08.909Z","dependency_job_id":"74b78e7b-ae7d-4fca-b2c1-d2b8c68c0a0a","html_url":"https://github.com/wolfpld/etcpak","commit_stats":{"total_commits":643,"total_committers":13,"mean_commits":49.46153846153846,"dds":"0.37636080870917576","last_synced_commit":"c54849f6ba65fa9b7772b121cfa5e16f4f46b072"},"previous_names":[],"tags_count":13,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/wolfpld%2Fetcpak","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/wolfpld%2Fetcpak/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/wolfpld%2Fetcpak/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/wolfpld%2Fetcpak/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/wolfpld","download_url":"https://codeload.github.com/wolfpld/etcpak/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":254527071,"owners_count":22085917,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","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":"2024-10-15T02:47:39.157Z","updated_at":"2026-02-22T13:02:08.839Z","avatar_url":"https://github.com/wolfpld.png","language":"C++","funding_links":["https://github.com/sponsors/wolfpld"],"categories":[],"sub_categories":[],"readme":"# etcpak 2.1 #\n\n## The fastest ETC compressor on the planet ##\n\netcpak is an extremely fast [Ericsson Texture Compression](http://en.wikipedia.org/wiki/Ericsson_Texture_Compression) and [Block Compression](https://en.wikipedia.org/wiki/S3_Texture_Compression) utility. Currently it's best suited for rapid assets preparation during development, when graphics quality is not a concern, but it's also used in production builds of applications used by millions of people.\n\n## Compression times ##\n\nBenchmark performed on an AMD Ryzen 9 7950X, using a real-life RGBA 16K × 16K atlas.\n\nETC1: ST: **797 Mpx/s**, MT: **9613 Mpx/s**  \nETC2: ST: **356 Mpx/s**, MT: **6378 Mpx/s**  \nBC1: ST: **5730 Mpx/s**, MT: **10174 Mpx/s**  \nBC3: ST: **2437 Mpx/s**, MT: **8568 Mpx/s**  \nBC7: ST: **12.1 Mpx/s**, MT: **225 Mpx/s**\n\nThe same benchmark performed on Intel i7 1185G7:\n\nETC1: ST: **516 Mpx/s**, MT: **2223 Mpx/s**  \nETC2: ST: **238 Mpx/s**, MT: **984 Mpx/s**  \nBC1: ST: **2969 Mpx/s**, MT: **9199 Mpx/s**  \nBC3: ST: **1351 Mpx/s**, MT: **5503 Mpx/s**  \nBC7: ST: **7.8 Mpx/s**, MT: **21.3 Mpx/s**\n\nApple M3 Max benchmark:\n\nETC1: ST: **204 Mpx/s**, MT: **2455 Mpx/s**  \nETC2: ST: **101 Mpx/s**, MT: **1231 Mpx/s**  \nBC1: ST: **3255 Mpx/s**, MT: **30366 Mpx/s**  \nBC3: ST: **1147 Mpx/s**, MT: **13238 Mpx/s**  \nBC7: ST: **5.47 Mpx/s**, MT: **65.8 Mpx/s**\n\n[Why there's no image quality metrics? / Quality comparison.](http://i.imgur.com/FxlmUOF.png)\n\n## Decompression times ##\n\netcpak can also decompress textures. Timings on Ryzen 7950X (all single-threaded):\n\nETC1: **604 Mpx/s**  \nETC2: **599 Mpx/s**  \nBC1: **1634 Mpx/s**  \nBC3: **1172 Mpx/s**  \nBC7: **201 Mpx/s**\n\ni7 1185G7:\n\nETC1: **383 Mpx/s**  \nETC2: **378 Mpx/s**  \nBC1: **1056 Mpx/s**  \nBC3: **788 Mpx/s**  \nBC7: **76 Mpx/s**\n\nM3 Max:\n\nETC1: **690 Mpx/s**  \nETC2: **786 Mpx/s**  \nBC1: **2434 Mpx/s**  \nBC3: **1414 Mpx/s**  \nBC7: **406 Mpx/s**\n\nTo give some perspective here, Nvidia in-driver ETC2 decoder can do only 42.5 Mpx/s.\n\n## Quality comparison ##\n\nOriginal image:\n\n![](examples/kodim23.png)\n\nCompressed image:\n\nETC1:\n\n![](examples/etc1.png \"ETC1 mode\")\n\nETC2:\n\n![](examples/etc2.png \"ETC2 mode\")\n\nBC1:\n\n![](examples/dxtc.png \"BC1 mode\")\n\nBC7:\n\n![](examples/bc7.png \"BC7 mode\")\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fwolfpld%2Fetcpak","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fwolfpld%2Fetcpak","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fwolfpld%2Fetcpak/lists"}