RenderInfernalForge.java

package com.bteteam.bte.client;

import com.bteteam.bte.blocks.tileentities.TileEntityInfernalForge;
import com.mojang.blaze3d.platform.GlStateManager;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.model.IBakedModel;
import net.minecraft.client.renderer.model.ItemCameraTransforms;
import net.minecraft.client.renderer.tileentity.TileEntityRenderer;
import net.minecraft.item.ItemStack;
import org.apache.commons.lang3.tuple.Pair;

import javax.vecmath.Matrix4f;
import java.nio.FloatBuffer;

public class RenderInfernalForge extends TileEntityRenderer<TileEntityInfernalForge> {

	@Override
	public void render(TileEntityInfernalForge te, double x, double y, double z, float partialTicks, int destroyStage) {
		if (!te.getStackHandler().getStackInSlot(0).isEmpty()) {
			ItemStack item = te.getStackHandler().getStackInSlot(0);
			Minecraft mc = Minecraft.getInstance();
			Pair<? extends IBakedModel, Matrix4f> pair = mc.getItemRenderer().getModelWithOverrides(item).getBakedModel().handlePerspective(ItemCameraTransforms.TransformType.GROUND);
			if (pair.getRight() != null) {
				GlStateManager.multMatrix(toBuffer(pair.getRight()));
			}
			GlStateManager.pushMatrix();
			GlStateManager.translated(x + 0.5, y + 0.6, z + 0.5);
			mc.getItemRenderer().renderItem(item, pair.getLeft());
			GlStateManager.popMatrix();
		}
	}

	FloatBuffer toBuffer(Matrix4f matrix) {
		return FloatBuffer.allocate(16).put(new float[]{
				matrix.m00, matrix.m01, matrix.m02, matrix.m03,
				matrix.m10, matrix.m11, matrix.m12, matrix.m13,
				matrix.m20, matrix.m21, matrix.m22, matrix.m23,
				matrix.m30, matrix.m31, matrix.m32, matrix.m33});
	}
}