From 11c5af9c3f461688f20565f1c221571e6e08c6fe Mon Sep 17 00:00:00 2001
From: Sollace <sollacea@gmail.com>
Date: Mon, 27 Mar 2023 17:04:53 +0100
Subject: [PATCH] Fixed model flickering in first person

---
 .../minelittlepony/client/render/EquineRenderManager.java  | 7 +++++--
 .../com/minelittlepony/client/render/FrustrumCheck.java    | 5 +++++
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/minelittlepony/client/render/EquineRenderManager.java b/src/main/java/com/minelittlepony/client/render/EquineRenderManager.java
index 1e8de017..2e59b5df 100644
--- a/src/main/java/com/minelittlepony/client/render/EquineRenderManager.java
+++ b/src/main/java/com/minelittlepony/client/render/EquineRenderManager.java
@@ -1,6 +1,7 @@
 package com.minelittlepony.client.render;
 
 import com.minelittlepony.api.model.ModelAttributes;
+import com.minelittlepony.api.model.RenderPass;
 import com.minelittlepony.api.pony.IPony;
 import com.minelittlepony.api.pony.network.MsgPonyData;
 import com.minelittlepony.api.pony.network.fabric.Channel;
@@ -11,8 +12,6 @@ import com.minelittlepony.client.model.ModelWrapper;
 import com.minelittlepony.client.transform.PonyPosture;
 import com.minelittlepony.mson.api.ModelKey;
 import com.minelittlepony.util.MathUtil;
-import com.mojang.blaze3d.platform.GlStateManager.DstFactor;
-import com.mojang.blaze3d.platform.GlStateManager.SrcFactor;
 import com.mojang.blaze3d.systems.RenderSystem;
 
 import java.util.Objects;
@@ -46,6 +45,10 @@ public class EquineRenderManager<T extends LivingEntity, M extends EntityModel<T
     }
 
     public Frustum getFrustrum(T entity, Frustum vanilla) {
+        if (RenderPass.getCurrent() == RenderPass.HUD) {
+            return FrustrumCheck.ALWAYS_VISIBLE;
+        }
+
         if (entity.isSleeping() || !MineLittlePony.getInstance().getConfig().frustrum.get()) {
             return vanilla;
         }
diff --git a/src/main/java/com/minelittlepony/client/render/FrustrumCheck.java b/src/main/java/com/minelittlepony/client/render/FrustrumCheck.java
index 45d5022b..9ac8d095 100644
--- a/src/main/java/com/minelittlepony/client/render/FrustrumCheck.java
+++ b/src/main/java/com/minelittlepony/client/render/FrustrumCheck.java
@@ -9,6 +9,11 @@ import org.joml.Matrix4f;
 import com.minelittlepony.client.PonyBounds;
 
 public class FrustrumCheck<T extends LivingEntity> extends Frustum {
+    public static final Frustum ALWAYS_VISIBLE = new Frustum(new Matrix4f(), new Matrix4f()) {
+        public boolean isVisible(Box bounds) {
+            return true;
+        }
+    };
 
     private T entity;