{"rewrite":{"id":"r_53130785cda2b07ecea1a16c","clusterId":"c_abd27558dabca01dfc30a982","slug":"blender-vtuber-avatar-build-hits-vrchat-humanoid-rig-wall","model":"deepseek-v4-flash:free","headline":"Blender VTuber Avatar Build Hits VRChat Humanoid Rig Wall","summary":"A VTuber creator using Blender to build a VRChat-ready 3D model of their character kyunrobo hit a major snag: VRChat only supports humanoid rigs. The multi-jointed arms and four legs did not fit the Humanoid standard, forcing a redesign with dummy bones and manual weight painting before the avatar finally worked in VRChat.","whyItMatters":"The piece documents a practical workaround for VRChat's Humanoid-only rig limit, showing how a non-humanoid Blender model can be adapted through dummy bones and weight painting.","webCardHtml":"\u003cp\u003eVRChat only moves humanoid rigs, which is a problem when your avatar has four legs and extra arm joints. The creator behind the kyunrobo avatar found that Blender\u0026#39;s automatic weight painting did not match the Humanoid bone structure, so the arms bent incorrectly in VRChat.\u003c/p\u003e\u003cp\u003eThe fix was to delete the extra arm bones, rebuild a Humanoid-compliant skeleton, and manually assign weights to every hard part using edit mode. The creator notes that finding documentation for weighting rigid parts was difficult, and ChatGPT eventually provided the solution.\u003c/p\u003e\u003cp\u003eAfter getting all parts moving correctly, the avatar gained eye movement and lip sync. The remaining issue is the avatar\u0026#39;s 30 cm height, which causes it to sink into the floor in VRChat.\u003c/p\u003e","blueskyPost":"kyunrobo's four-legged design hit VRChat's humanoid-only rig rule, so the model needed dummy bones and manual weight painting. The wall isn't Blender; it's VRChat's avatar standard.","twitterPost":"kyunrobo's four-legged avatar hit VRChat's humanoid-only rig rule, forcing dummy bones and manual weight painting. The limit is VRChat's, not Blender's.","threadsPost":"kyunrobo's four-legged avatar hit VRChat's humanoid-only rig rule, so the build needed dummy bones and manual weight painting. The wall isn't Blender; it's VRChat's avatar standard, which forces creators to bend their designs to fit.","newsletterBlurb":"A VTuber creator building a VRChat avatar in Blender hit the platform's humanoid-only rig limit. The fix involved dummy bones and manual weight painting, a process the creator says was hard to find documentation for. The avatar now moves correctly, though its small size causes floor clipping.","attributionJson":"[{\"source\":\"ASCII.jp\",\"url\":\"https://ascii.jp/elem/000/004/424/4424732/?rss\",\"title\":\"BlenderでVTuberアバター制作　VRChat対応で苦戦した理由は......\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":6186,"outputTokens":589,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1786192664,"createdAt":"2026-08-08T12:27:27.000Z","publishedAt":"2026-08-08T12:31:44.000Z","updatedAt":"2026-08-08T12:27:27.000Z"},"cluster":{"id":"c_abd27558dabca01dfc30a982","canonicalTitle":"BlenderでVTuberアバター制作　VRChat対応で苦戦した理由は……","representativeArticleId":"a_33d3d2bfe50d62743c485d89","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[],\"studios\":[],\"people\":[],\"type\":\"news\",\"domain\":\"vtuber\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-08-07T22:00:00.000Z","lastSeenAt":"2026-08-07T22:00:00.000Z","updatedAt":"2026-08-08T12:31:44.000Z"},"attribution":[{"source":"ASCII.jp","url":"https://ascii.jp/elem/000/004/424/4424732/?rss","title":"BlenderでVTuberアバター制作　VRChat対応で苦戦した理由は……"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":[],"studios":[],"people":[],"type":"news","domain":"vtuber","is_roundup":false},"keyFacts":null}