Make undercurls thickness close to underlines

Fixes #5873.
2022-02-10 15:29:03 +03:00 · 2022-02-10 15:29:03 +03:00 · c35ccaf9b5
parent eefce4e9af
commit c35ccaf9b5
1 changed files with 3 additions and 2 deletions
--- a/alacritty/res/rect.f.glsl
+++ b/alacritty/res/rect.f.glsl
@ -37,8 +37,9 @@ void main()
        * cos(float(x) * 2 * PI / float(cellWidth))
        + cellHeight - undercurlPosition;

-    float undercurl_top = undercurl + undercurlThickness / 2.;
-    float undercurl_bottom = undercurl - undercurlThickness / 2.;
+    // We subtract one, since curve is already 1px thick.
+    float undercurl_top = undercurl + max((undercurlThickness - 1), 0);
+    float undercurl_bottom = undercurl - max((undercurlThickness - 1), 0);


    // Compute resulted alpha based on distance from `gl_FragCoord.y` to the