{"work":{"id":"d292f6b0-b538-459b-b332-ee3b7a0e4fbe","openalex_id":"https://openalex.org/W4372272552","doi":"10.48550/arxiv.2305.02463","arxiv_id":"2305.02463","raw_key":null,"title":"Shap-E: Generating Conditional 3D Implicit Functions","authors":null,"authors_text":"Heewoo Jun, Alex Nichol","year":2023,"venue":"cs.CV","abstract":"We present Shap-E, a conditional generative model for 3D assets. Unlike recent work on 3D generative models which produce a single output representation, Shap-E directly generates the parameters of implicit functions that can be rendered as both textured meshes and neural radiance fields. We train Shap-E in two stages: first, we train an encoder that deterministically maps 3D assets into the parameters of an implicit function; second, we train a conditional diffusion model on outputs of the encoder. When trained on a large dataset of paired 3D and text data, our resulting models are capable of generating complex and diverse 3D assets in a matter of seconds. When compared to Point-E, an explicit generative model over point clouds, Shap-E converges faster and reaches comparable or better sample quality despite modeling a higher-dimensional, multi-representation output space. We release model weights, inference code, and samples at https://github.com/openai/shap-e.","external_url":"https://arxiv.org/abs/2305.02463","cited_by_count":114,"metadata_source":"pith","metadata_fetched_at":"2026-08-05T02:28:24.338817+00:00","pith_arxiv_id":"2305.02463","created_at":"2026-05-09T22:29:06.495198+00:00","updated_at":"2026-08-05T02:28:24.338817+00:00","title_quality_ok":true,"display_title":"Shap-E: Generating Conditional 3D Implicit Functions","render_title":"Shap-E: Generating Conditional 3D Implicit Functions"},"hub":{"state":{"work_id":"d292f6b0-b538-459b-b332-ee3b7a0e4fbe","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":54,"external_cited_by_count":114,"distinct_field_count":6,"first_pith_cited_at":"2023-07-11T17:57:40+00:00","last_pith_cited_at":"2026-07-07T17:59:50+00:00","author_build_status":"not_needed","summary_status":"needed","contexts_status":"needed","graph_status":"needed","ask_index_status":"not_needed","reader_status":"not_needed","recognition_status":"not_needed","updated_at":"2026-08-22T20:59:21.681483+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":6},{"context_role":"baseline","n":1},{"context_role":"other","n":1}],"polarity_counts":[{"context_polarity":"background","n":5},{"context_polarity":"unclear","n":2},{"context_polarity":"baseline","n":1}],"runs":{},"summary":{},"graph":{},"authors":[]}}