# Seams only where a wall's side is certain; add floors instead of masking ยท dara/icarus [View on GitCafe](https://git.cafe/dara/icarus/commit/5ed768dc895a6bb50d568c60692152573139581a) Repository: [dara/icarus](https://git.cafe/dara/icarus) Visibility: public Requested revision: 5ed768dc895a6bb50d568c60692152573139581a Requested commit: 5ed768dc895a6bb50d568c60692152573139581a Commit: 5ed768dc895a6bb50d568c60692152573139581a Tree: 7575c3725a9887b95bfe720995789884182d6ff2 Author: Dara Adedeji Committer: Dara Adedeji ## Message ``` Seams only where a wall's side is certain; add floors instead of masking - An edge's side is taken only when a step either way tells inside from outside. A wall thinner than the step is "unknown" (2 in native), and no seam is skipped at its edges, so duplicated thin walls keep their corners. - Floors are cleared and refilled with antialiasing, and the floor layer is added rather than laid over: at a floor edge on lit ground the cut keeps 1 - c and the floor brings c, which sum to the fill. Edges facing open ground stay smooth. A ray grazing a corner from within about 1e-5 SVG units of it is still caught by the slack's 1e-13 floor; a smaller floor would let roundoff send a corner-aimed ray through the wall, which is worse. Co-Authored-By: Claude Opus 5.5 (1M context) ``` ## Parents - [31a323cd90f0792d21c1d69f8855e26c610ee2b1](https://git.cafe/dara/icarus/commit/31a323cd90f0792d21c1d69f8855e26c610ee2b1?format=markdown) [Source at this commit](https://git.cafe/dara/icarus/tree/5ed768dc895a6bb50d568c60692152573139581a?format=markdown)