Process which allows to check the transparency of a pixel in comparison to that just under it making it opaque or transparent in a changing way. It is used for example for fog effects or explosion.
Additional information for each pixel for creating transparent materials.
The term used where a value (called 'Alpha') is used to indicate a transparency value for a pixel. If the Alpha=maximum then the pixel is opaque, that is the full colour of the pixel is written to the destination. If Alpha=0 then the pixel is fully transparent, and the destination is left unaltered. Values in-between cause 'blending' with the formula Destination = Source*Alpha/max_Alpha + Destination*(max_Alpha-Alpha)/max_Alpha
A graphics processing technique that simulates transparency or translucency for objects in a 3D scene to create visual effects like smoke, glass or water. Pixels in the frame buffer of a graphics system include three color components (red, green and blue) and sometimes an alpha channel component as well. The alpha channel data stores the degree of transparency, ranging from opaque to completely clear.
A technique in computer graphics that causes a foreground image to appear partially transparent over a background image. To accomplish this, the technique performs a weighted average of the color components of the two images.
The 3D rendering process of alternating alpha values to create translucency effects such as smoke. It can also be used so simulate transparent or semi-transparent objects such as water or glass.
Creating transparent materials with the help of additional information for each pixel.
The operation of blending a source pixel color with a destination (frame buffer) pixel color according to some rule on alpha values.
A graphics processing technique that simulates transparency or translucency in objects in a 3D scene to create visual effects like smoke, glass or water. Basic Quad Basic picture Alpha Add Alpha Sub Alpha Blend
This allows two objects to be visually blended together. This is primarily used for 3D atmospheric and environmental effects. It allows such things as...
An approach which uses the alpha channel to control how an object or bitmap interacts visually with its surroundings. It can be used to layer multiple textures onto a 3D object, or to simulate the translucency of glass or mask out areas of background.
In computer graphics, each pixel has three channels of color information--red, green, and blue--and sometimes a fourth called the alpha channel. This channel ontrols the way in which other graphics information is displayed, such as levels of transparency or opacity. Alpha blending is the name for this type of control, and it's used to simulate effects such as placing a piece of glass in front of an object so that the object is completely visible behind the glass, unviewable, or something in between.
Assigning varying levels of translucency to graphical objects, allowing the creation of things such as glass, fog, and ghosts. This can be accomplished by using alpha channels, or other means. (see Alpha Channel)
A blending technique in which perspective calculations are performed on both of the textures used in a blending operation (see blending).
