alpha 255

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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

Only 0-255 levels of alpha channel

> only you don ' T see it, because the> color_alpha->calculate > function just always returns *covers. In my case, I>  was using> a combined alpha  (Source x shape) ... Ah, i see. well, the division by 255 is too expensive. the usual technique there 

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

Alpha hybrid Discussion

The Alpha hybrid technology is no stranger to those familiar with games, and has been used up in today's game special effects. 3D games won't be mentioned. In 2D games, this technology is also full of eyes. Alpha mixing sounds mysterious and

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

[Feng yuchong] unity3d tutorial book shader: 12th Alpha Testing

If the original article needs to be reproduced, please note: Reprinted from Fengyu Chong unity3d tutorial Institute  Lecture on shader 12thAlpha Testing Introduction: this and the next sections focus on Alpha, that is, the content related to

Android set alpha value to make an instance of transparent and gradient effect

The colors supported by the Android system are made up of 4 values, the first 3 RGB, which is what we often call the three primary colors (red, green, blue), and the last value is a, which is alpha. These 4 values are between 0~255. A smaller color

Best practices for using alpha

Alpha is a common special effect in graphic interface development. We usually use the following code to implement the alpha special effect: view.setAlpha(0.5f);View.ALPHA.set(view, 0.5f);ObjectAnimator.ofFloat(view, "alpha",

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