From 2274a218daa05b4ec76bcfa8ce677a170082efd7 Mon Sep 17 00:00:00 2001
From: Lucien Greathouse <me@lpghatguy.com>
Date: Mon, 23 Oct 2023 19:08:51 -0400
Subject: [PATCH] Correctly handle alpha in wgpu text shader

---
 crates/yakui-wgpu/shaders/text.wgsl | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/crates/yakui-wgpu/shaders/text.wgsl b/crates/yakui-wgpu/shaders/text.wgsl
index 05d96004..e4e1db40 100644
--- a/crates/yakui-wgpu/shaders/text.wgsl
+++ b/crates/yakui-wgpu/shaders/text.wgsl
@@ -31,6 +31,8 @@ fn vs_main(
 
 @fragment
 fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
-    var coverage = textureSample(coverage_texture, coverage_sampler, in.texcoord).r;
-    return in.color * coverage;
+    let coverage = textureSample(coverage_texture, coverage_sampler, in.texcoord).r;
+    let alpha = coverage * in.color.a;
+
+    return vec4(in.color.rgb * alpha, alpha);
 }
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