diff --git a/src/main/java/net/minecraftforge/client/model/pipeline/BlockInfo.java b/src/main/java/net/minecraftforge/client/model/pipeline/BlockInfo.java
index 9f2b8fab58..3f01f5a137 100644
--- a/src/main/java/net/minecraftforge/client/model/pipeline/BlockInfo.java
+++ b/src/main/java/net/minecraftforge/client/model/pipeline/BlockInfo.java
@@ -21,10 +21,12 @@ package net.minecraftforge.client.model.pipeline;
 
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
+import net.minecraft.block.Blocks;
 import net.minecraft.client.renderer.color.BlockColors;
 import net.minecraft.util.Direction;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.math.shapes.VoxelShapes;
 import net.minecraft.world.IEnviromentBlockReader;
 
 public class BlockInfo
@@ -134,7 +136,13 @@ public class BlockInfo
         }
         for(Direction side : SIDES)
         {
-            if(!state.doesSideBlockRendering(world, blockPos, side))
+            BlockPos pos = blockPos.offset(side);
+            BlockState state = world.getBlockState(pos);
+
+            BlockState thisStateShape = this.state.isSolid() && this.state.func_215691_g() ? this.state : Blocks.AIR.getDefaultState();
+            BlockState otherStateShape = state.isSolid() && state.func_215691_g() ? state : Blocks.AIR.getDefaultState();
+
+            if(state.getOpacity(world, blockPos) == 15 || VoxelShapes.func_223416_b(thisStateShape.func_215702_a(world, blockPos, side), otherStateShape.func_215702_a(world, pos, side.getOpposite())))
             {
                 int x = side.getXOffset() + 1;
                 int y = side.getYOffset() + 1;
diff --git a/src/main/java/net/minecraftforge/common/extensions/IForgeBlock.java b/src/main/java/net/minecraftforge/common/extensions/IForgeBlock.java
index 85d90fb37a..2c1292f5dc 100644
--- a/src/main/java/net/minecraftforge/common/extensions/IForgeBlock.java
+++ b/src/main/java/net/minecraftforge/common/extensions/IForgeBlock.java
@@ -136,6 +136,7 @@ public interface IForgeBlock
         return false;
     }
 
+    //TODO: remove in 1.15
     /**
      * Check if the face of a block should block rendering.
      *
@@ -147,7 +148,9 @@ public interface IForgeBlock
      * @param pos Block position in world
      * @param face The side to check
      * @return True if the block is opaque on the specified side.
+     * @deprecated This is no longer used for rendering logic.
      */
+    @Deprecated
     default boolean doesSideBlockRendering(BlockState state, IEnviromentBlockReader world, BlockPos pos, Direction face)
     {
        return state.isOpaqueCube(world, pos);
diff --git a/src/main/java/net/minecraftforge/common/extensions/IForgeBlockState.java b/src/main/java/net/minecraftforge/common/extensions/IForgeBlockState.java
index 5741a77381..3cb151969b 100644
--- a/src/main/java/net/minecraftforge/common/extensions/IForgeBlockState.java
+++ b/src/main/java/net/minecraftforge/common/extensions/IForgeBlockState.java
@@ -102,6 +102,7 @@ public interface IForgeBlockState
         return getBlockState().getBlock().isLadder(getBlockState(), world, pos, entity);
     }
 
+    //TODO: remove in 1.15
     /**
      * Check if the face of a block should block rendering.
      *
@@ -112,7 +113,9 @@ public interface IForgeBlockState
      * @param pos Block position in world
      * @param face The side to check
      * @return True if the block is opaque on the specified side.
+     * @deprecated This is no longer used for rendering logic.
      */
+    @Deprecated
     default boolean doesSideBlockRendering(IEnviromentBlockReader world, BlockPos pos, Direction face)
     {
         return getBlockState().getBlock().doesSideBlockRendering(getBlockState(), world, pos, face);