Truncate Y coordinate in LayoutGlyph::physical

src/cache.rs

@@ -23,7 +23,7 @@ impl CacheKey {
         pos: (f32, f32),
     ) -> (Self, i32, i32) {
         let (x, x_bin) = SubpixelBin::new(pos.0);
-        let (y, y_bin) = SubpixelBin::new(pos.1.trunc());
+        let (y, y_bin) = SubpixelBin::new(pos.1);
         (
             Self {
                 font_id,

src/layout.rs

@@ -72,7 +72,7 @@ impl LayoutGlyph {
             self.font_size * scale,
             (
                 (self.x + x_offset) * scale + offset.0,
-                (self.y - y_offset) * scale + offset.1,
+                ((self.y - y_offset) * scale + offset.1).trunc(), // Hinting in Y axis
             ),
         );