improve portal gun perf

forge-1.20.1/src/main/java/com/craisinlord/antarchy/forge/client/GravityCameraRollHandler.java

@@ -2,11 +2,13 @@ package com.craisinlord.antarchy.forge.client;
 
 import com.craisinlord.antarchy.Antarchy;
 import com.craisinlord.antarchy.content.gravity.AntarchyGravityApi;
+import net.minecraft.client.Camera;
 import net.minecraft.world.entity.Entity;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.client.event.ViewportEvent;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.common.Mod;
+import org.joml.Vector3f;
 
 @Mod.EventBusSubscriber(modid = Antarchy.MODID, value = Dist.CLIENT)
 public final class GravityCameraRollHandler {
@@ -15,7 +17,8 @@ public final class GravityCameraRollHandler {
 
     @SubscribeEvent
     public static void onComputeCameraAngles(ViewportEvent.ComputeCameraAngles event) {
-        Entity entity = event.getCamera().getEntity();
+        Camera camera = event.getCamera();
+        Entity entity = camera.getEntity();
         if (entity == null) {
             return;
         }
@@ -25,6 +28,12 @@ public final class GravityCameraRollHandler {
             return;
         }
 
-        event.setRoll(event.getRoll() + 180.0F * flipProgress);
+        float gravityRoll = 180.0F * flipProgress;
+        event.setRoll(event.getRoll() + gravityRoll);
+
+        Vector3f look = camera.getLookVector();
+        float radians = (float) Math.toRadians(gravityRoll);
+        camera.getUpVector().rotateAxis(radians, look.x(), look.y(), look.z());
+        camera.getLeftVector().rotateAxis(radians, look.x(), look.y(), look.z());
     }
 }