http://www.pixologic.com/zclassroom/homeroom/tutorial.php?lesson=helmet
i have followed the tutorial and all of which followed, but i am having an issue with coloring and the materials i select. In the video he is able to isolate the poly groups, and select a specific material for that group, but the problem i am having, is when i choose the poly group and the material i want for it, i go back to the main model with CTRL SHIFT, but then i see the whole model material has been changed, i am not sure why it does this.