Render 3D Icon in Minecraft of a Item/Block - 1.8.9

gistfile1.txt

    public static void RenderFloatingItemIcon(float x, float y, float z, Item item, float partialTickTime, boolean animate) {
        BlockPos pos = new BlockPos(x,y,z);

        // Create Empty EntityItem to help with Rendering Positionining.
        EntityItem entity = new EntityItem(mc.theWorld,pos.getX(),pos.getY(), pos.getZ());
        if (entity.ticksExisted == 0)
        {
            entity.lastTickPosX = entity.posX;
            entity.lastTickPosY = entity.posY;
            entity.lastTickPosZ = entity.posZ;
        }

        double d0 = entity.lastTickPosX + (entity.posX - entity.lastTickPosX) * (double)partialTickTime;
        double d1 = entity.lastTickPosY + (entity.posY - entity.lastTickPosY) * (double)partialTickTime;
        double d2 = entity.lastTickPosZ + (entity.posZ - entity.lastTickPosZ) * (double)partialTickTime;

        // TODO: Keep local version of the renderXYZ positions
        double renderPosX = HaxeUtil.GetFieldByReflection(RenderManager.class, mc.getRenderManager(),"renderPosX");
        double renderPosY = HaxeUtil.GetFieldByReflection(RenderManager.class, mc.getRenderManager(),"renderPosY");
        double renderPosZ = HaxeUtil.GetFieldByReflection(RenderManager.class, mc.getRenderManager(),"renderPosZ");

        GlStateManager.pushMatrix();
        renderPosX = (double)pos.getX() - entity.posX + (d0 - renderPosX);
        renderPosY = (double)pos.getY() - entity.posY + (d1 - renderPosY);
        renderPosZ = (double)pos.getZ() - entity.posZ + (d2 - renderPosZ);
        GlStateManager.translate(renderPosX + 0.5D, renderPosY + 1.3, renderPosZ + 0.5D);
        float time = (mc.thePlayer.ticksExisted % 360);
        GL11.glScaled(0.8D,0.8D,0.8D);

        if(animate)
            GL11.glRotatef(-mc.getRenderManager().playerViewY-time*20, 0.0F,1F, 0.0F);
        else
            GL11.glRotatef(-mc.getRenderManager().playerViewY, 0.0F,1F, 0.0F);

        mc.getRenderItem().renderItem(new ItemStack(item), ItemCameraTransforms.TransformType.FIXED);
        GlStateManager.popMatrix();
    }