From b290c88c1d714496d54274207558067130fd054d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tr=C3=A8sAbhi?= <43380238+tresabhi@users.noreply.github.com>
Date: Fri, 2 Feb 2024 23:21:12 -0600
Subject: [PATCH] fix: use two calibers rule on spaced armor

---
 .../ArmorMesh/components/Armor/shaders/fragment.glsl        | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/components/ArmorMesh/components/Armor/shaders/fragment.glsl b/src/components/ArmorMesh/components/Armor/shaders/fragment.glsl
index 962867e08..08a3d0e15 100644
--- a/src/components/ArmorMesh/components/Armor/shaders/fragment.glsl
+++ b/src/components/ArmorMesh/components/Armor/shaders/fragment.glsl
@@ -65,8 +65,10 @@ void main() {
 
     if (isUnderSpacedArmor) {
       // spaced armor on the other hand, does care about angle
-      float spacedArmorThickness = spacedArmorNominalThickness / cos(spacedArmorAngle);
-      remainingPenetration -= spacedArmorThickness;
+      bool spacedArmorTwoCalibersRule = caliber > 2.0 * spacedArmorNominalThickness;
+      float finalSpacedArmorNormalization = spacedArmorTwoCalibersRule ? (normalization * 1.4 * caliber) / (2.0 * spacedArmorNominalThickness) : normalization;
+      float finalSpacedArmorThickness = spacedArmorNominalThickness / cos(spacedArmorAngle - finalSpacedArmorNormalization);
+      remainingPenetration -= finalSpacedArmorThickness;
     }
     remainingPenetration = max(remainingPenetration, 0.0);