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Fix tesselation of PathShape with NaN values #7654

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Fix tesselation of PathShape with NaN values #7654

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25 changes: 22 additions & 3 deletions crates/epaint/src/tessellator.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1715,6 +1715,10 @@ impl Tessellator {
return;
}

if path_shape.closed && path_shape.points.iter().any(|p| p.any_nan()) {
return;
}

if self.options.coarse_tessellation_culling
&& !path_shape.visual_bounding_rect().intersects(self.clip_rect)
{
Expand Down Expand Up @@ -1744,10 +1748,25 @@ impl Tessellator {
"You asked to fill a path that is not closed. That makes no sense."
);

self.scratchpad_path.add_open_points(points);
let mut start = 0;
while start < points.len() {
while start < points.len() && points[start].any_nan() {
start += 1;
}
let mut end = start;
while end < points.len() && !points[end].any_nan() {
end += 1;
}
if end - start > 1 {
self.scratchpad_path.add_open_points(&points[start..end]);

self.scratchpad_path
.stroke(self.feathering, PathType::Open, stroke, out);
self.scratchpad_path
.stroke(self.feathering, PathType::Open, stroke, out);

self.scratchpad_path.clear();
}
start = end;
}
}
}

Expand Down