Transparency and Perf

What's Changed

• Make background color transparent by default and refactor fb and rast resizing by @aymanbagabas in #2
• chore: use UV Screen API by @aymanbagabas in #1

New Contributors

• @aymanbagabas made their first contribution in #2

Full Changelog: v1.2.1...v1.3.0

v1.2.0 - STL Improvements

What's New

STL Loader Improvements

• Fixed winding order to match GLTF/OBJ convention (consistent rendering across formats)
• Added tolerance-based vertex deduplication (handles float32 precision issues)
• Added optional mesh cleanup on load (CleanMesh option)

New Mesh Utilities

• mesh.CleanMesh() - removes degenerate, duplicate, and internal faces
• mesh.DeduplicateFaces() - removes duplicate triangles
• mesh.RemoveInternalFaces() - removes coplanar opposing faces
• mesh.RemoveDegenerateFaces() - removes zero-area triangles
• mesh.RemoveUnreferencedVertices() - compacts vertex array

Viewer

• B key toggles backface culling (default OFF, better for single-sided STL meshes)

Other

• Added proper Utah teapot test model (9438 triangles)
• STL files now tracked with git-lfs