Add 3D Model Loading with Normals #13

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opened 2026-01-18 14:14:22 +00:00 by akadmin · 0 comments

akadmin commented

2026-01-18 14:14:22 +00:00

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Description:
Implement 3D model loading using the tobj crate. Extend vertex data to include normals, tangents, and UVs.
Tasks:

Add tobj dependency to Cargo.toml
Extend VertexData struct to include normals and UVs
Create model loading function that parses OBJ files
Handle multiple meshes in one file
Load vertex positions, normals, and texture coordinates
Calculate tangents and bitangents (needed for normal mapping later)
Update vertex buffer creation for new vertex format
Test with a simple OBJ model (cube or sphere)

Acceptance Criteria:

Can load OBJ files with normals and UVs
Vertex data correctly includes all attributes
Models render with correct geometry

Related Issues: Depends on #12
Estimated Time: 2-3 days

Description: Implement 3D model loading using the tobj crate. Extend vertex data to include normals, tangents, and UVs. Tasks: - [x] Add tobj dependency to Cargo.toml - [x] Extend VertexData struct to include normals and UVs - [x] Create model loading function that parses OBJ files - [x] Handle multiple meshes in one file - [x] Load vertex positions, normals, and texture coordinates - [x] Calculate tangents and bitangents (needed for normal mapping later) - [x] Update vertex buffer creation for new vertex format - [x] Test with a simple OBJ model (cube or sphere) Acceptance Criteria: Can load OBJ files with normals and UVs Vertex data correctly includes all attributes Models render with correct geometry Related Issues: Depends on #12 Estimated Time: 2-3 days