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Why conversion is more than multiplying

From in-game screenshots we infer that crosshairs are drawn one line at a time: outline first, crosshair color on top, later draws covering earlier ones. Change any pixel value by 1 and the final shape can differ. Below, that order replayed step by step; the last frame matches an in-game screenshot pixel for pixel.

Current step
0 / 10
Ready: empty pixel grid

Press "Play" or "Next" — orange box marks the current step.

Parameters
Center dot
On, size 2
Outline
On, thickness 1
Inner line thickness
2
Inner line length
2
Inner line offset
0

0;s;1;P;o;1;d;1;f;0;m;1;0l;2;0o;0;0a;1;0f;0;1b;0;S;b;1;c;8;t;00FF66FF;o;1

Drawn at the player's own resolution: later rectangles cover earlier ones; some white isn't retained.

All steps
Legend
Black: outlineWhite: crosshair colorOrange box: current step's rectangleTransparent

Thick blue lines mark screen center, between two pixels: adjacent pixels are −1 and +1, no 0.

The draw model is calibrated and verified pixel by pixel against 13 in-game 1:1 screenshots unaffected by firing error. With firing error on, lines shift outward with weapon spread; this shows static geometry only.

What this site does: draws rounding combinations with these rules and keeps the one closest to the original scaled to your resolution. A card is marked Approximate when a line the original actually draws has firing error on (unless the code uses the crosshair offset in place of the firing error offset); when no combination keeps every line and the dot as visible or hidden as before; when even the best match is under 50% similar; or when your resolution has no precomputed result and is scaled proportionally.