From 290d27d85f537a876bc819b61233cf4f9b255469 Mon Sep 17 00:00:00 2001
From: Jared Miller <jared@smell.flowers>
Date: Wed, 11 Mar 2026 15:25:26 -0400
Subject: [PATCH] Place deposited material from ant cargo in world

---
 src/shaders/world.frag | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/shaders/world.frag b/src/shaders/world.frag
index fae319b..a2a19a4 100644
--- a/src/shaders/world.frag
+++ b/src/shaders/world.frag
@@ -22,5 +22,11 @@ void main()	{
         materialId = float(MAT_AIR);
     }
 
+    // ant deposited material at this cell (only into air cells)
+    int depositMatId = int(round(discreteAnts.w * 255.));
+    if (depositMatId > 0 && int(materialId) == MAT_AIR) {
+        materialId = float(depositMatId);
+    }
+
     FragColor = vec4(materialId, scentToHome, scentToFood, repellent);
 }