diff --git a/client/renderer/core.ts b/client/renderer/core.ts
index ad38584..dc5c2ab 100644
--- a/client/renderer/core.ts
+++ b/client/renderer/core.ts
@@ -78,8 +78,10 @@ struct Uniforms {
 
 struct VertexOut {
 	@builtin(position) position: vec4<f32>,
-	@location(0) tex_coord: vec2<f32>,
-	@location(1) color: vec4<f32>,
+	// centroid: with msaa, pixels on a triangle's edge would otherwise sample outside it, past the
+	// sprite's edge in the atlas, which shows up as dark lines between blocks from far away
+	@location(0) @interpolate(perspective, centroid) tex_coord: vec2<f32>,
+	@location(1) @interpolate(perspective, centroid) color: vec4<f32>,
 }
 
 @vertex