From 32df27beb0509756d75db2b0c64e4744c14f8f4a Mon Sep 17 00:00:00 2001
From: Victor Giers <mail@victorgiers.com>
Date: Wed, 13 May 2026 14:25:00 +0200
Subject: [PATCH] Implement and add terrain grid resize gizmo visualization

---
 src/viewport-three/viewport-host.ts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/viewport-three/viewport-host.ts b/src/viewport-three/viewport-host.ts
index 260ba9eb..d24bffae 100644
--- a/src/viewport-three/viewport-host.ts
+++ b/src/viewport-three/viewport-host.ts
@@ -1260,6 +1260,21 @@ export class ViewportHost {
     this.terrainBrushPreviewGroup.add(this.terrainBrushPreviewCenter);
     applyRendererRenderCategory(this.terrainBrushPreviewGroup, "overlay");
     this.scene.add(this.terrainBrushPreviewGroup);
+    this.terrainGridResizeOverlayGroup.visible = false;
+    this.terrainGridResizeEdgeLine.frustumCulled = false;
+    this.terrainGridResizeArrowLine.frustumCulled = false;
+    this.terrainGridResizeArrowHead.frustumCulled = false;
+    this.terrainGridResizeEdgeLine.renderOrder = GIZMO_RENDER_ORDER + 5;
+    this.terrainGridResizeArrowLine.renderOrder = GIZMO_RENDER_ORDER + 6;
+    this.terrainGridResizeArrowHead.renderOrder = GIZMO_RENDER_ORDER + 7;
+    this.terrainGridResizeOverlayGroup.add(this.terrainGridResizeEdgeLine);
+    this.terrainGridResizeOverlayGroup.add(this.terrainGridResizeArrowLine);
+    this.terrainGridResizeOverlayGroup.add(this.terrainGridResizeArrowHead);
+    applyRendererRenderCategory(
+      this.terrainGridResizeOverlayGroup,
+      "overlay"
+    );
+    this.scene.add(this.terrainGridResizeOverlayGroup);
     this.scene.add(this.pathGroup);
     this.scene.add(this.entityGroup);
     this.scene.add(this.modelGroup);