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Alpha-blend borders with backgrounds in quad SDF

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Co-Authored-By: Max Brunsfeld <max@zed.dev>
This commit is contained in:
Antonio Scandurra 2022-01-26 19:16:26 +01:00
parent 02baaa3529
commit 51c34ebcc2
3 changed files with 12 additions and 6 deletions
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14
crates/gpui/src/platform/mac/shaders/shaders.metal
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@ -66,13 +66,19 @@ float4 quad_sdf(QuadFragmentInput input) {
border_width = vertical_border; border_width = vertical_border;
} }
float4 color = input.background_color * float4(1., 1., 1., saturate(0.5 - distance)); float4 color;
if (border_width != 0.) { if (border_width == 0.) {
color = input.background_color;
} else {
float inset_distance = distance + border_width; float inset_distance = distance + border_width;
color = mix(input.border_color, color, saturate(0.5 - inset_distance)); float4 border_color = float4(
mix(input.background_color.rgb, input.border_color.rgb, input.border_color.a),
saturate(input.background_color.a + input.border_color.a)
);
color = mix(border_color, input.background_color, saturate(0.5 - inset_distance));
} }
return color; return color * float4(1., 1., 1., saturate(0.5 - distance));
} }
vertex QuadFragmentInput quad_vertex( vertex QuadFragmentInput quad_vertex(

2
crates/zed/assets/themes/black.toml
View file

@ -7,7 +7,7 @@ extends = "_base"
[border] [border]
0 = "#000000B2" 0 = "#000000B2"
1 = "#FFFFFF16" 1 = "#FFFFFF4A"
[text] [text]
0 = { extends = "$text.base", color = "#ffffff" } 0 = { extends = "$text.base", color = "#ffffff" }

2
crates/zed/assets/themes/dark.toml
View file

@ -7,7 +7,7 @@ extends = "_base"
[border] [border]
0 = "#1B222B" 0 = "#1B222B"
1 = "#FFFFFF16" 1 = "#FFFFFF4A"
[text] [text]
0 = { extends = "$text.base", color = "#FFFFFF" } 0 = { extends = "$text.base", color = "#FFFFFF" }