- Use 800x600 logical coordinate space (matches native)
- Set ZoomFactor=2.0 to scale content to 1600x1200 canvas
- Match native DPI setting (91)
Results improved from 3 to 7 matching scenarios:
- arcs (0.25%), basic-lines (0.44%), bezier-curves (0.45%)
- line-widths (0.66%), segment-chain (0.89%), segments (0.66%)
- transforms (0.26%)
Many more scenarios now close (<5%):
- arc-segments (3.5%), hole-walls (2.3%), clear-colors (1.4%)
- complex-scene (2.6%), polylines-multi (2.1%), polygons (3.2%)
Remaining issues:
- Filled shapes have slight color differences (~9%)
- Text/glyphs not implemented (60-67%)
- Some features broken (depth-testing, bitmap, transform-api)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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