alpha background

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What is alpha channel?

Image processing (alpha channel, RGB, ...) ) Qilian (Adobe Series tutorial) Shcheyan UI CourseA question that may be silly, what is alpha in image processing? the Alpha Channel is a term in computer graphics that refers to a special channel, meaning

Alpha test, deep test, template test, and cut test in OpenGL

  Reproduced in: http://blog.csdn.net/Crazyjumper/archive/2007/12/26/1968567.aspx Reproduced in: http://blog.csdn.net/Crazyjumper/archive/2007/12/26/1968567.aspx Reproduced in: http://blog.csdn.net/Crazyjumper/archive/2007/12/26/1968567.aspx Hello

WIN2D official article series translation-pre-multiply Alpha

This article is a personal blog backup article, the original address:http://validvoid.net/win2d-premultiplied-alpha/There are two ways to represent the opacity of a color value in a computer drawing. Both methods are used in win2d. This article aims

D3D 9 randomly controls texture transparency with alpha blending

On the Internet do not see the technical article about D3D 9, I recently wrote a 2D function, I hope that through certain settings to arbitrarily control a 2D texture map transparency, online search, all articles, or copy the market textbooks, or

Rgba Alpha transparency Hybrid Algorithm

Http://blog.csdn.net/xhhjin/article/details/6445460   Alpha transparency MixingAlgorithmTo collect and organize data online, which can be divided into the following three types: 1. R1, G1, B1, and alpha1 are foreground color values. R2, G2, B2,

Perfect Combination: Ten cool uses of Siri + Wolfram Alpha

After reading the ten "serious" usage of Siri, the powerful functions of the "Siri + X" combination must be visible to everyone. If you carefully consider the ten "serious" usage we have introduced, it is not difficult to find that the combination

Wince/VC efficient PNG texture, custom Alpha Algorithm

At work, PNG images are required for some dazzling interfaces. Microsoft also provides support for PNG images in wince, but the Alpha mixing speed is relatively slow, therefore, we have implemented an Alpha hybrid operation interface, which is four

[BS-17] iOS development-alpha,hidden and opaque differences

The UIView control has the three common properties of Alpha,hidden and opaque, and the UIView control backgroundcolor is in Rgba, so the background color also has an alpha (the palette in storyboard is displayed as opacity )。 These properties are

What is Alpha Channel

In Graphics, a portion of each pixel's data that is reserved Transparency information. 32-bit graphics systems contain four channels -- Three 8-bit channels for red, green, and blue (RGB) and one 8-bit Alpha channel. The alpha channel is really a

The separation of RGB and Alpha channels of images in the Unity project, and display all material with alpha channel textures

Background: The error message returned when the etc1 image format is invalid. The alpha channel is not supported. As a result, programmers waste some effort on alpha channel processing. In order to use etc1, and some transparency effects must have

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