Add cancelable RenderHandEvent.

patches/minecraft/net/minecraft/client/renderer/EntityRenderer.java.patch

@@ -125,7 +125,7 @@
              GL11.glDepthMask(true);
              GL11.glEnable(GL11.GL_CULL_FACE);
              GL11.glDisable(GL11.GL_BLEND);
-@@ -1357,6 +1380,9 @@
+@@ -1357,9 +1380,12 @@
                  this.renderCloudsCheck(renderglobal, par1);
              }
  
@@ -134,7 +134,11 @@
 +
              this.mc.mcProfiler.endStartSection("hand");
  
-             if (this.cameraZoom == 1.0D)
+-            if (this.cameraZoom == 1.0D)
++            if (!ForgeHooksClient.renderFirstPersonHand(renderglobal, par1, j) && this.cameraZoom == 1.0D)
+             {
+                 GL11.glClear(GL11.GL_DEPTH_BUFFER_BIT);
+                 this.renderHand(par1, j);
 @@ -1477,6 +1503,13 @@
      // JAVADOC METHOD $$ func_78474_d
      protected void renderRainSnow(float par1)

src/main/java/net/minecraftforge/client/ForgeHooksClient.java

@@ -1,6 +1,7 @@
 package net.minecraftforge.client;
 
 import java.util.Random;
+
 import javax.imageio.ImageIO;
 
 import net.minecraftforge.client.event.MouseEvent;
@@ -44,6 +45,7 @@ import net.minecraft.client.renderer.texture.TextureMap;
 import net.minecraft.client.settings.GameSettings;
 import net.minecraftforge.client.IItemRenderer.ItemRenderType;
 import net.minecraftforge.client.event.DrawBlockHighlightEvent;
+import net.minecraftforge.client.event.RenderHandEvent;
 import net.minecraftforge.client.event.RenderWorldLastEvent;
 import net.minecraftforge.client.event.TextureStitchEvent;
 import net.minecraftforge.common.ForgeModContainer;
@@ -251,6 +253,11 @@ public class ForgeHooksClient
         MinecraftForge.EVENT_BUS.post(new RenderWorldLastEvent(context, partialTicks));
     }
 
+    public static boolean renderFirstPersonHand(RenderGlobal context, float partialTicks, int renderPass)
+    {
+        return MinecraftForge.EVENT_BUS.post(new RenderHandEvent(context, partialTicks, renderPass));
+    }
+
     public static void onTextureStitchedPre(TextureMap map)
     {
         MinecraftForge.EVENT_BUS.post(new TextureStitchEvent.Pre(map));

src/main/java/net/minecraftforge/client/event/RenderHandEvent.java

@@ -0,0 +1,19 @@
+package net.minecraftforge.client.event;
+
+import cpw.mods.fml.common.eventhandler.Cancelable;
+import cpw.mods.fml.common.eventhandler.Event;
+import net.minecraft.client.renderer.RenderGlobal;
+
+@Cancelable
+public class RenderHandEvent extends Event
+{
+    public final RenderGlobal context;
+    public final float partialTicks;
+    public final int renderPass;
+    public RenderHandEvent(RenderGlobal context, float partialTicks, int renderPass)
+    {
+        this.context = context;
+        this.partialTicks = partialTicks;
+        this.renderPass = renderPass;
+    }
+}