Time for action – using cookies

Mmmm. Cookies. Well, these are not the oatmeal, raisin, chocolate chip, or even the Internet kind. In films and Blender, a cookie is a screen put up in front of a lamp to create a pattern within the light. The following steps will help you in using cookies:

1. Open the file 4909OS_11_light_test rig_Sintel.blend from the download pack again.
2. In the 3D View window, select the Spot_Key lamp with the RMB. You can also select it in the Outliner window.
3. In the header of the Properties window, select the Textures button. It is the button with the checkerboard on it.
4. Press the New button to create a new texture.
5. Click on the button to the right of Type, and choose Image or Movie from the menu.
6. In the Image subpanel, click on the Open button and select 4909OS_11_05.png from the Images directory of the Chapter 11 folder you had created.
7. Press F12.
8. In the Mapping subpanel, click on the button to the right of Coordinates. Select Object from the pop-up menu.
9. Press F12.
10. Click...