Java tutorial
package buildcraftAdditions.client.render.items; import org.lwjgl.opengl.GL11; import net.minecraft.item.ItemStack; import net.minecraftforge.client.IItemRenderer; import buildcraftAdditions.client.models.BackPackModel; /** * Copyright (c) 2014-2015, AEnterprise * http://buildcraftadditions.wordpress.com/ * Buildcraft Additions is distributed under the terms of GNU GPL v3.0 * Please check the contents of the license located in * http://buildcraftadditions.wordpress.com/wiki/licensing-stuff/ */ public class BackPackItemRenderer implements IItemRenderer { public static final BackPackItemRenderer INSTANCE = new BackPackItemRenderer(); private BackPackItemRenderer() { } @Override public boolean handleRenderType(ItemStack item, ItemRenderType type) { return true; } @Override public boolean shouldUseRenderHelper(ItemRenderType type, ItemStack item, ItemRendererHelper helper) { return type.equals(ItemRenderType.INVENTORY) || type.equals(ItemRenderType.ENTITY); } @Override public void renderItem(ItemRenderType type, ItemStack item, Object... data) { GL11.glPushMatrix(); switch (type) { case EQUIPPED: GL11.glRotated(180, 0, 0, 1); GL11.glTranslated(-0.75, -0.5, 0); break; case EQUIPPED_FIRST_PERSON: GL11.glTranslated(1, .5, 0); GL11.glRotated(270, 0, 1, 0); GL11.glRotated(180, 1, 0, 0); GL11.glRotated(180, 0, 1, 0); break; case INVENTORY: GL11.glRotated(180, 0, 1, 0); GL11.glRotated(180, 1, 0, 0); GL11.glTranslated(0, -.25, 0); } BackPackModel.INSTANCE2.render(null, 0, 0, 0, 0, 0, 0.06f); GL11.glPopMatrix(); } }