From 3d8719275de52a63b10ec4f45212bfc1c6de14c4 Mon Sep 17 00:00:00 2001
From: Jarrod Doyle <thejarroddoyle@gmail.com>
Date: Sat, 6 May 2023 12:43:40 +0100
Subject: [PATCH] Correctly update brickgrid when brickmaps are empty

---
 src/voxel/brickmap.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/voxel/brickmap.rs b/src/voxel/brickmap.rs
index a79d3fa..7c5670c 100644
--- a/src/voxel/brickmap.rs
+++ b/src/voxel/brickmap.rs
@@ -229,6 +229,12 @@ impl BrickmapManager {
                 + chunk_y * world_dims[0]
                 + chunk_z * world_dims[0] * world_dims[1]) as usize;
 
+            // Don't upload it if it's empty
+            if albedo_data.is_empty() {
+                self.update_brickgrid_element(context, chunk_idx, 0);
+                continue;
+            }
+
             // Update the brickgrid index
             let brickgrid_element = ((self.brickmap_cache_idx as u32) << 8) + 4;
             self.update_brickgrid_element(context, chunk_idx, brickgrid_element);