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KenM76andClaude Opus 5.5
ea6d0c6bfb
New L3 crate over pdfcraft-prc: assemble places every product-tree tessellation into world space with its colours (pure `place` does the transform), Camera fits a view to the model, and render fills depth-buffered triangles with headlight or unlit shading into an RGBA image. Opaque triangles draw first, translucent ones blend over them; perspective views clip at a near plane. Never panics: MAX_RENDER_PIXELS and MAX_ASSEMBLED_TRIANGLES cap the work, every pixel and vertex index is checked, and damage returns RenderError. Single-threaded. Tests: 24 unit tests (two drive the product-tree placement path) plus an end-to-end one that builds a synthetic PRC stream in-test, renders it, and checks the background, the nearer triangle and the farther one by pixel; every truncation of that stream parses and assembles without panicking. Reverting the depth test or the placement transform fails the matching tests. Adapted from pdfcer (MIT, same author) at 912437c3, trimmed to the camera, raster and headlight parts and rewritten to the pdfcraft-prc types. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SqmHYx8FiWM5PcsoiErgp9