Some more adjustments for 1.8.

src/main/scala/li/cil/oc/client/Textures.scala

@@ -144,7 +144,8 @@ object Textures {
     val Cable = L("cable")
     val CableCap = L("cableCap")
     val GenericTop = L("generic_top", load = false)
-    val NetSplitter = L("netSplitter")
+    val NetSplitterSide = L("netSplitter_side")
+    val NetSplitterTop = L("netSplitter_top")
     val RackFront = L("serverRack_front", load = false)
     val RackSide = L("serverRack_side", load = false)
 

src/main/scala/li/cil/oc/client/renderer/block/ModelInitialization.scala

@@ -29,6 +29,8 @@ import scala.collection.mutable
 object ModelInitialization {
   final val CableBlockLocation = new ModelResourceLocation(Settings.resourceDomain + ":" + Constants.BlockName.Cable, "normal")
   final val CableItemLocation = new ModelResourceLocation(Settings.resourceDomain + ":" + Constants.BlockName.Cable, "inventory")
+  final val NetSplitterBlockLocation = new ModelResourceLocation(Settings.resourceDomain + ":" + Constants.BlockName.NetSplitter, "normal")
+  final val NetSplitterItemLocation = new ModelResourceLocation(Settings.resourceDomain + ":" + Constants.BlockName.NetSplitter, "inventory")
   final val PrintBlockLocation = new ModelResourceLocation(Settings.resourceDomain + ":" + Constants.BlockName.Print, "normal")
   final val PrintItemLocation = new ModelResourceLocation(Settings.resourceDomain + ":" + Constants.BlockName.Print, "inventory")
   final val RobotBlockLocation = new ModelResourceLocation(Settings.resourceDomain + ":" + Constants.BlockName.Robot, "normal")
@@ -45,6 +47,7 @@ object ModelInitialization {
     MinecraftForge.EVENT_BUS.register(this)
 
     registerModel(Constants.BlockName.Cable, CableBlockLocation, CableItemLocation)
+    registerModel(Constants.BlockName.NetSplitter, NetSplitterBlockLocation, NetSplitterItemLocation)
     registerModel(Constants.BlockName.Print, PrintBlockLocation, PrintItemLocation)
     registerModel(Constants.BlockName.Robot, RobotBlockLocation, RobotItemLocation)
     registerModel(Constants.BlockName.RobotAfterimage, RobotAfterimageBlockLocation, RobotAfterimageItemLocation)
@@ -137,6 +140,8 @@ object ModelInitialization {
 
     registry.putObject(CableBlockLocation, CableModel)
     registry.putObject(CableItemLocation, CableModel)
+    registry.putObject(NetSplitterBlockLocation, NetSplitterModel)
+    registry.putObject(NetSplitterItemLocation, NetSplitterModel)
     registry.putObject(PrintBlockLocation, PrintModel)
     registry.putObject(PrintItemLocation, PrintModel)
     registry.putObject(RobotBlockLocation, RobotModel)

src/main/scala/li/cil/oc/client/renderer/block/NetSplitterModel.scala

@@ -23,7 +23,14 @@ object NetSplitterModel extends SmartBlockModelBase with ISmartItemModel {
 
   override def handleItemState(stack: ItemStack) = new ItemModel(stack)
 
-  protected def splitterTexture = Array.fill(6)(Textures.getSprite(Textures.Block.NetSplitter))
+  protected def splitterTexture = Array(
+    Textures.getSprite(Textures.Block.NetSplitterTop),
+    Textures.getSprite(Textures.Block.NetSplitterTop),
+    Textures.getSprite(Textures.Block.NetSplitterSide),
+    Textures.getSprite(Textures.Block.NetSplitterSide),
+    Textures.getSprite(Textures.Block.NetSplitterSide),
+    Textures.getSprite(Textures.Block.NetSplitterSide)
+  )
 
   protected final val BaseModel = {
     val faces = mutable.ArrayBuffer.empty[BakedQuad]

src/main/scala/li/cil/oc/client/renderer/tileentity/NetSplitterRenderer.scala

@@ -16,20 +16,22 @@ object NetSplitterRenderer extends TileEntitySpecialRenderer {
 
     val splitter = tileEntity.asInstanceOf[tileentity.NetSplitter]
     if (splitter.openSides.contains(!splitter.isInverted)) {
-      GL11.glPushAttrib(GL11.GL_ALL_ATTRIB_BITS)
-
-      RenderState.disableLighting()
+      RenderState.pushAttrib()
+      RenderState.disableEntityLighting()
       RenderState.makeItBlend()
 
-      GL11.glPushMatrix()
+      RenderState.pushMatrix()
 
       GL11.glTranslated(x + 0.5, y + 0.5, z + 0.5)
       GL11.glScaled(1.0025, -1.0025, 1.0025)
       GL11.glTranslatef(-0.5f, -0.5f, -0.5f)
 
       bindTexture(TextureMap.locationBlocksTexture)
+
       val t = Tessellator.getInstance
       val r = t.getWorldRenderer
+
+      Textures.Block.bind()
       r.startDrawingQuads()
 
       val sideActivity = Textures.getSprite(Textures.Block.NetSplitterOn)
@@ -78,10 +80,10 @@ object NetSplitterRenderer extends TileEntitySpecialRenderer {
 
       t.draw()
 
-      RenderState.enableLighting()
+      RenderState.enableEntityLighting()
 
-      GL11.glPopMatrix()
-      GL11.glPopAttrib()
+      RenderState.popMatrix()
+      RenderState.popAttrib()
     }
 
     RenderState.checkError(getClass.getName + ".renderTileEntityAt: leaving")