ForgePatch/patches/minecraft/net/minecraft/client/renderer/tileentity/TileEntityRendererDispatcher.java.patch

--- a/net/minecraft/client/renderer/tileentity/TileEntityRendererDispatcher.java
+++ b/net/minecraft/client/renderer/tileentity/TileEntityRendererDispatcher.java
@@ -89,7 +89,7 @@
 
    @Nullable
    public <T extends TileEntity> TileEntityRenderer<T> func_147547_b(@Nullable TileEntity p_147547_1_) {
-      return p_147547_1_ == null ? null : this.func_147546_a(p_147547_1_.getClass());
+      return p_147547_1_ == null || p_147547_1_.func_145837_r() ? null : this.func_147546_a(p_147547_1_.getClass());
    }
 
    public void func_217665_a(World p_217665_1_, TextureManager p_217665_2_, FontRenderer p_217665_3_, ActiveRenderInfo p_217665_4_, RayTraceResult p_217665_5_) {
@@ -105,12 +105,14 @@
 
    public void func_180546_a(TileEntity p_180546_1_, float p_180546_2_, int p_180546_3_) {
       if (p_180546_1_.func_145835_a(this.field_217666_g.func_216785_c().field_72450_a, this.field_217666_g.func_216785_c().field_72448_b, this.field_217666_g.func_216785_c().field_72449_c) < p_180546_1_.func_145833_n()) {
+         if(!drawingBatch || !p_180546_1_.hasFastRenderer()) {
          RenderHelper.func_74519_b();
          int i = this.field_147550_f.func_217338_b(p_180546_1_.func_174877_v(), 0);
          int j = i % 65536;
          int k = i / 65536;
          GLX.glMultiTexCoord2f(GLX.GL_TEXTURE1, (float)j, (float)k);
          GlStateManager.color4f(1.0F, 1.0F, 1.0F, 1.0F);
+         }
          BlockPos blockpos = p_180546_1_.func_174877_v();
          this.func_203602_a(p_180546_1_, (double)blockpos.func_177958_n() - field_147554_b, (double)blockpos.func_177956_o() - field_147555_c, (double)blockpos.func_177952_p() - field_147552_d, p_180546_2_, p_180546_3_, false);
       }
@@ -130,6 +132,10 @@
       if (tileentityrenderer != null) {
          try {
             if (p_203602_10_ || p_203602_1_.func_145830_o() && p_203602_1_.func_200662_C().func_223045_a(p_203602_1_.func_195044_w().func_177230_c())) {
+
+               if(drawingBatch && p_203602_1_.hasFastRenderer())
+                  tileentityrenderer.renderTileEntityFast(p_203602_1_, p_203602_2_, p_203602_4_, p_203602_6_, p_203602_8_, p_203602_9_, batchBuffer.func_178180_c());
+               else
                tileentityrenderer.func_199341_a(p_203602_1_, p_203602_2_, p_203602_4_, p_203602_6_, p_203602_8_, p_203602_9_);
             }
          } catch (Throwable throwable) {
@@ -153,4 +159,46 @@
    public FontRenderer func_147548_a() {
       return this.field_147557_n;
    }
+
+   /**
+    * Buffer used for batched TESRs
+    */
+   private net.minecraft.client.renderer.Tessellator batchBuffer = new net.minecraft.client.renderer.Tessellator(0x200000);
+   private boolean drawingBatch = false;
+
+   /**
+    * Prepare for a batched TESR rendering.
+    * You probably shouldn't call this manually.
+    */
+   public void preDrawBatch() {
+       batchBuffer.func_178180_c().func_181668_a(org.lwjgl.opengl.GL11.GL_QUADS, net.minecraft.client.renderer.vertex.DefaultVertexFormats.field_176600_a);
+       drawingBatch = true;
+   }
+
+   /**
+    * Render all TESRs batched so far.
+    * You probably shouldn't call this manually.
+    */
+   public void drawBatch() {
+      field_147553_e.func_110577_a(net.minecraft.client.renderer.texture.AtlasTexture.field_110575_b);
+      net.minecraft.client.renderer.RenderHelper.func_74518_a();
+      GlStateManager.blendFunc(org.lwjgl.opengl.GL11.GL_SRC_ALPHA, org.lwjgl.opengl.GL11.GL_ONE_MINUS_SRC_ALPHA);
+      GlStateManager.enableBlend();
+      GlStateManager.disableCull();
+
+      if (net.minecraft.client.Minecraft.func_71379_u())
+         GlStateManager.shadeModel(org.lwjgl.opengl.GL11.GL_SMOOTH);
+      else
+         GlStateManager.shadeModel(org.lwjgl.opengl.GL11.GL_FLAT);
+
+      batchBuffer.func_78381_a();
+
+      net.minecraft.client.renderer.RenderHelper.func_74519_b();
+      drawingBatch = false;
+   }
+
+   //Internal, Do not call Use ClientRegistry.
+   public synchronized <T extends TileEntity> void setSpecialRenderer(Class<T> tileEntityClass, TileEntityRenderer<? super T> specialRenderer) {
+      this.field_147559_m.put(tileEntityClass, specialRenderer);
+   }
 }