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Sierra Games

Upscaling Sierra's SCI0 vector backgrounds 6× without breaking them: flood fills that leak, a native-resolution render as the oracle, an anchor-graph rewrite.

3 parts

  1. Part 1

    Upscaling Sierra SCI0 PIC: the native render oracle

    How snap-blend upscales Sierra SCI0 vector backgrounds without leaking flood fills, using a native-resolution render as the oracle for every scaled fill.

    12 min read

  2. Part 2

    Trying agi-up as a reference renderer for SCI0

    Borrowing from a native-resolution AGI upscaler for a 6× SCI0 pipeline: one geometric rule transferred, the architecture did not, and why.

    9 min read

  3. Part 3

    omyac-upscaler: all the way into the anchor graph

    Porting agi-up's anchor-graph upscaler to SCI0 PICs: four colour-model fixes, one convention fix, and why snap-blend is leaving the PIC path.

    21 min read