From 11d237f5f2817bf08acee1271406763cba256304 Mon Sep 17 00:00:00 2001
From: RainWarrior <rainwarrior@fry.su>
Date: Sun, 22 Nov 2015 02:10:30 +0300
Subject: [PATCH] Fixed forge lighting working incorrectly outside 0x1000000
 coordinates.

---
 .../model/pipeline/ForgeBlockModelRenderer.java     | 13 +++++++++++--
 .../client/model/pipeline/VertexLighterFlat.java    |  7 ++++---
 .../model/pipeline/WorldRendererConsumer.java       |  9 ++++++++-
 3 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/src/main/java/net/minecraftforge/client/model/pipeline/ForgeBlockModelRenderer.java b/src/main/java/net/minecraftforge/client/model/pipeline/ForgeBlockModelRenderer.java
index 7c8e638933a..f7c7cf19650 100644
--- a/src/main/java/net/minecraftforge/client/model/pipeline/ForgeBlockModelRenderer.java
+++ b/src/main/java/net/minecraftforge/client/model/pipeline/ForgeBlockModelRenderer.java
@@ -22,6 +22,7 @@ protected VertexLighterFlat initialValue()
             return new VertexLighterFlat();
         }
     };
+
     private final ThreadLocal<VertexLighterSmoothAo> lighterSmooth = new ThreadLocal<VertexLighterSmoothAo>()
     {
         @Override
@@ -31,6 +32,8 @@ protected VertexLighterSmoothAo initialValue()
         }
     };
 
+    private final ThreadLocal<WorldRendererConsumer> wrFlat = new ThreadLocal<WorldRendererConsumer>();
+    private final ThreadLocal<WorldRendererConsumer> wrSmooth = new ThreadLocal<WorldRendererConsumer>();
     private final ThreadLocal<WorldRenderer> lastRendererFlat = new ThreadLocal<WorldRenderer>();
     private final ThreadLocal<WorldRenderer> lastRendererSmooth = new ThreadLocal<WorldRenderer>();
 
@@ -42,8 +45,11 @@ public boolean renderModelStandard(IBlockAccess world, IBakedModel model, Block
             if(wr != lastRendererFlat.get())
             {
                 lastRendererFlat.set(wr);
-                lighterFlat.get().setParent(new WorldRendererConsumer(wr));
+                WorldRendererConsumer newCons = new WorldRendererConsumer(wr);
+                wrFlat.set(newCons);
+                lighterFlat.get().setParent(newCons);
             }
+            wrFlat.get().setOffset(pos);
             return render(lighterFlat.get(), world, model, block, pos, wr, checkSides);
         }
         else
@@ -60,8 +66,11 @@ public boolean renderModelAmbientOcclusion(IBlockAccess world, IBakedModel model
             if(wr != lastRendererSmooth.get())
             {
                 lastRendererSmooth.set(wr);
-                lighterSmooth.get().setParent(new WorldRendererConsumer(wr));
+                WorldRendererConsumer newCons = new WorldRendererConsumer(wr);
+                wrSmooth.set(newCons);
+                lighterSmooth.get().setParent(newCons);
             }
+            wrSmooth.get().setOffset(pos);
             return render(lighterSmooth.get(), world, model, block, pos, wr, checkSides);
         }
         else
diff --git a/src/main/java/net/minecraftforge/client/model/pipeline/VertexLighterFlat.java b/src/main/java/net/minecraftforge/client/model/pipeline/VertexLighterFlat.java
index 039c3eb31f3..6ded96597cd 100644
--- a/src/main/java/net/minecraftforge/client/model/pipeline/VertexLighterFlat.java
+++ b/src/main/java/net/minecraftforge/client/model/pipeline/VertexLighterFlat.java
@@ -144,12 +144,13 @@ protected void processQuad()
                 switch(parent.getVertexFormat().getElement(e).getUsage())
                 {
                     case POSITION:
-                        float[] pos = new float[4];
+                        // position adding moved to WorldRendererConsumer due to x and z not fitting completely into a float
+                        /*float[] pos = new float[4];
                         System.arraycopy(position[v], 0, pos, 0, position[v].length);
                         pos[0] += blockInfo.getBlockPos().getX();
                         pos[1] += blockInfo.getBlockPos().getY();
-                        pos[2] += blockInfo.getBlockPos().getZ();
-                        parent.put(e, pos);
+                        pos[2] += blockInfo.getBlockPos().getZ();*/
+                        parent.put(e, position[v]);
                         break;
                     case NORMAL: if(normalIndex != -1)
                     {
diff --git a/src/main/java/net/minecraftforge/client/model/pipeline/WorldRendererConsumer.java b/src/main/java/net/minecraftforge/client/model/pipeline/WorldRendererConsumer.java
index 2e9ee09aa2b..fea7dff2273 100644
--- a/src/main/java/net/minecraftforge/client/model/pipeline/WorldRendererConsumer.java
+++ b/src/main/java/net/minecraftforge/client/model/pipeline/WorldRendererConsumer.java
@@ -4,6 +4,7 @@
 
 import net.minecraft.client.renderer.WorldRenderer;
 import net.minecraft.client.renderer.vertex.VertexFormat;
+import net.minecraft.util.BlockPos;
 import net.minecraft.util.EnumFacing;
 
 /**
@@ -14,6 +15,7 @@ public class WorldRendererConsumer implements IVertexConsumer
     private final WorldRenderer renderer;
     private final int[] quadData;
     private int v = 0;
+    private BlockPos offset = BlockPos.ORIGIN;
 
     public WorldRendererConsumer(WorldRenderer renderer)
     {
@@ -36,13 +38,18 @@ public void put(int e, float... data)
             if(v == 4)
             {
                 renderer.addVertexData(quadData);
-                renderer.putPosition(0, 0, 0);
+                renderer.putPosition(offset.getX(), offset.getY(), offset.getZ());
                 Arrays.fill(quadData, 0);
                 v = 0;
             }
         }
     }
 
+    public void setOffset(BlockPos offset)
+    {
+        this.offset = new BlockPos(offset);
+    }
+
     public void setQuadTint(int tint) {}
     public void setQuadOrientation(EnumFacing orientation) {}
     public void setQuadColored() {}