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AmigaWorld Official AmigaVision Handbook
entire display — not just the area of the screen the brush occupies. If all your screens and brushes use the same palette, this will not present a problem. The requester's single check-box gadget, labeled Cookie Cut, indicates to AmigaVision that you want the brush placed on the screen. Without the Cookie Cut option enabled, AmigaVision will stamp the brush down on the screen using a rectangle that is as large as necessary to encase the whole brush. The entire rect angle will be stamped down, thus overwriting anything under it.
If Cookie Cut is enabled (a check mark appears next to it), any area of the brush rectangle that is background color will be treated as invisible. When placed on the screen in this mode, only the actual image will replace what was already on the screen, and wherever there was background color in the brush, the original screen image will show through.
Keep in mind that when you place these brushes onto the screen, you are making them part of the existing screen. This differs greatly from placing brushes on the screen from within the Object editor: these are removed from the screen (at your option) when AmigaVision finishes executing their corresponding icon. Brushicon images do not go away until they themselves are overwritten with another brush or until you load another screen.
The Graphics Icon The Graphics icon (labeled GFx on the Audio Visual icon menu) is something of a hybrid, bridging the gap between the other graphics-oriented icons (Screen and Brush) and the Object editor. Through its Object editor access, you can place a variety of text and graphics on the screen, which can either be removed when the icon and its siblings are finished, or be left permanently stamped into the current screen display (as with the Brush icon). In addition, the Graphics icon offers a feature that allows a very simple means of generating animation: a technique called color cycling.
The Graphics icon can be used as a sibling to other icons, as a child of a Parent icon (it is especially useful as a child of a Screen icon), and as a companion to a Partner icon. It cannot be a Parent icon itself. Drag the Graphics icon into the Flow window and position it into your program. Because of the way the Graphics icon works, it is especially important to think carefully about exactly where the icon is placed.
Normally, the effects of the Graphics icon (such as the placement of objects on the display from within the Object editor), remain only until the last sibling of the