From c6f8c1e6a5202944bfd87a58701786af8e3938c4 Mon Sep 17 00:00:00 2001
From: tresabhi <43380238+tresabhi@users.noreply.github.com>
Date: Sat, 13 Jun 2026 21:13:33 -0500
Subject: [PATCH] lighting and correct rotation ZY swap

---
 packages/game/Models/MonoGltf.cs                 |  7 ++++++-
 .../src/components/TankopediaLighting.tsx        |  2 +-
 .../src/components/TankopediaSandbox/index.tsx   |  7 ++-----
 .../src/components/TankopediaSceneProps.tsx      | 16 ++++++++++++++++
 4 files changed, 25 insertions(+), 7 deletions(-)
 create mode 100644 packages/website-ue/src/components/TankopediaSceneProps.tsx

diff --git a/packages/game/Models/MonoGltf.cs b/packages/game/Models/MonoGltf.cs
index 3f175e401..adb4d699f 100644
--- a/packages/game/Models/MonoGltf.cs
+++ b/packages/game/Models/MonoGltf.cs
@@ -86,7 +86,7 @@ public class MonoGltf
 
         if (transform.TryGet<FQuat>("Rotation", out var rotation))
         {
-          parent.WithLocalRotation(rotation);
+          parent.WithLocalRotation(SwapYZ(rotation));
         }
 
         if (transform.TryGet<FVector>("Translation", out var translation))
@@ -279,6 +279,11 @@ public class MonoGltf
     return res;
   }
 
+  public static Quaternion SwapYZ(Quaternion q)
+  {
+    return Quaternion.Normalize(new Quaternion(q.X, q.Z, q.Y, -q.W));
+  }
+
   public static FVector SwapYZAndNormalize(FVector vec)
   {
     var res = SwapYZ(vec);
diff --git a/packages/website-ue/src/components/TankopediaLighting.tsx b/packages/website-ue/src/components/TankopediaLighting.tsx
index 5438dbbd0..bd08ff2b2 100644
--- a/packages/website-ue/src/components/TankopediaLighting.tsx
+++ b/packages/website-ue/src/components/TankopediaLighting.tsx
@@ -9,7 +9,7 @@ const THETA_OFFSET = degToRad(-152);
 const LIGHT_DISTANCE = 13;
 const LIGHT_HEIGHT_0 = 4;
 const LIGHT_HEIGHT_1 = 2;
-const INTENSITY_0 = 3.5;
+const INTENSITY_0 = 2.5;
 const INTENSITY_1 = 1.5;
 const HEMISPHERE_INTENSITY = 2;
 
diff --git a/packages/website-ue/src/components/TankopediaSandbox/index.tsx b/packages/website-ue/src/components/TankopediaSandbox/index.tsx
index b1195dc19..cfde0340a 100644
--- a/packages/website-ue/src/components/TankopediaSandbox/index.tsx
+++ b/packages/website-ue/src/components/TankopediaSandbox/index.tsx
@@ -6,6 +6,7 @@ import { useTankGunModel } from "../../hooks/useTankGunModel";
 import { useTankHullModel } from "../../hooks/useTankHullModel";
 import { useTankTurretModel } from "../../hooks/useTankTurretModel";
 import { TankopediaLighting } from "../TankopediaLighting";
+import { SceneProps } from "../TankopediaSceneProps";
 import styles from "./index.module.css";
 
 interface TankopediaSandboxProps {
@@ -51,11 +52,7 @@ function Content({ parameters }: TankopediaSandboxProps) {
       </group>
 
       <TankopediaLighting />
-
-      <mesh receiveShadow rotation={[-Math.PI / 2, 0, 0]}>
-        <planeGeometry args={[2 ** 9, 2 ** 9]} />
-        <meshStandardMaterial color="black" />
-      </mesh>
+      <SceneProps />
 
       <OrbitControls />
     </>
diff --git a/packages/website-ue/src/components/TankopediaSceneProps.tsx b/packages/website-ue/src/components/TankopediaSceneProps.tsx
new file mode 100644
index 000000000..98aca917e
--- /dev/null
+++ b/packages/website-ue/src/components/TankopediaSceneProps.tsx
@@ -0,0 +1,16 @@
+const SIZE = 2 ** 6;
+
+export function SceneProps() {
+  return (
+    <mesh rotation={[-Math.PI / 2, 0, 0]} receiveShadow renderOrder={-1}>
+      <planeGeometry args={[SIZE, SIZE]} />
+      <meshStandardMaterial
+        transparent
+        opacity={0.5}
+        color="black"
+        roughness={1}
+        metalness={0}
+      />
+    </mesh>
+  );
+}