Assets and IO

Assets are loaded through browser-like APIs but resolved to native IO.

fetch

fetch resolves URLs relative to a configurable asset root. In the initial phase, only local files are supported. Future phases may add HTTP support.

Guidelines:

• URL parsing is minimal; no redirects in phase 1.
• Responses expose arrayBuffer() and text() as needed by Three.js loaders.
• Binary data stays in contiguous buffers owned by the host.

Images

• Image and createImageBitmap load common formats (PNG, JPEG).
• Decode may be synchronous initially; later moved to background threads.
• Decoded pixel data is uploaded to GPU via the WebGL shim.

FileReader and Blobs

• FileReader supports the subset used for drag-and-drop assets.
• URL.createObjectURL returns a short-lived token that maps to a host buffer.
• URL.revokeObjectURL releases that buffer promptly.