EQInterface Forums - View Single Post - Looking for a "TGA For Dummies" Quick-start / guide

Layers helps superimpose graphics on an underlying layer. For example if you have a background layer showing a house, next to a river, Using another layer you can add a boat on the river. The topmost layer always gets superimposed on the underlying layers.. Thats how layers work. Why layers are effective is that it helps one to control an individual element. Example you can move the boat anywhere on the river, change its color etc. If you were to move the house, on the background, it will be hard as its a part of the background image. If it was on a layer on its own.. Its easy. Thats the concept of layers.

How to make an object see through another one is by controlling the opacity. There will be an opacity slider to do that.. Values will be between the range of 0 - 100 . 0 being invisible 100 being Opaque. So using the above example, if you set the boat layer to 50 percent it will appear transparent and you will be able to see the river underneath.

Alpha channels are another way to control opacity in a screen. What an alpha channel is a grey scale value image ranging from pure black to shades of gray to white. Depending on the progams Pure black is opaque , White is transparent or viceversa. EQ uses alpha channel images in gray scale to control certain opacity features of its windows and its custom bars. If you find any grey scale images it usually is an alpha channel file.

I use photoshop mostly and have used PsPro before. It works in a similar way and the concepts I explained will work.

Zek, Emarr.

09-24-2006, 04:45 PM	#2
evilknight A Ghoul Join Date: Sep 2006 Posts: 19	Layers helps superimpose graphics on an underlying layer. For example if you have a background layer showing a house, next to a river, Using another layer you can add a boat on the river. The topmost layer always gets superimposed on the underlying layers.. Thats how layers work. Why layers are effective is that it helps one to control an individual element. Example you can move the boat anywhere on the river, change its color etc. If you were to move the house, on the background, it will be hard as its a part of the background image. If it was on a layer on its own.. Its easy. Thats the concept of layers. How to make an object see through another one is by controlling the opacity. There will be an opacity slider to do that.. Values will be between the range of 0 - 100 . 0 being invisible 100 being Opaque. So using the above example, if you set the boat layer to 50 percent it will appear transparent and you will be able to see the river underneath. Alpha channels are another way to control opacity in a screen. What an alpha channel is a grey scale value image ranging from pure black to shades of gray to white. Depending on the progams Pure black is opaque , White is transparent or viceversa. EQ uses alpha channel images in gray scale to control certain opacity features of its windows and its custom bars. If you find any grey scale images it usually is an alpha channel file. I use photoshop mostly and have used PsPro before. It works in a similar way and the concepts I explained will work. Zek, Emarr.