關於 opengl alpha blending ，我們在網路上蒐集到這些相關的討論、資訊與評價

#11. Multi-Layer Alpha Blending - Intel

We introduce multi-layer alpha blending, a novel solution to real- ... ture is available through OpenGL extensions that enable reading.

#12. Alpha blending - r/opengl - Reddit

r/opengl - Alpha blending. I'm writing a particle system, and so far, so good, it works. To render -flashy- particles, I'm using the ...

#13. Basic Rendering in OpenGL - Blending - InformIT

The final color is a scaled combination of the original red value and the incoming blue value. The higher the incoming alpha value, the more of ...

#14. Alpha Blending - an overview | ScienceDirect Topics

One of the most useful fragment modifier operations supported by OpenGL is blending, also called alpha blending. Without blending, a fragment that passes ...

#15. [OpenGL] How to enable Alpha Blending in OpenGL

glBlendFunc() controls how this blending occurs. The typical use described above modifies the incoming color by its associated alpha value ...

#16. OpenGL Pipeline Blending Blending

Alpha determines opacity, pixel-by-pixel. – α = 1: opaque. – α = 0: transparent. – 0 < α < 1: translucent. • Blend translucent objects during rendering.

#17. Alpha-blending and the Z-buffer. - Steve Baker

The Z buffer doesn't work for transparent polygons. The problem is that the Z buffer prevents OpenGL from drawing pixels that are behind things that have ...

#18. OpenGL blending with the screen - Computer Graphics Stack ...

BUT the alpha component will be 0.3×0.3 + 0×(1 - 0.3) = 0.3, so we then have a color of (0.3, 0, 0, 0.09) which is not correct, ...

#19. openGL Alpha Blending for full Opacity or Transparency

This question of yours is extremely hard to understand but it seems the key is. the fragment color is just the front-most opaque texel--no ...

#20. WebGL, Blending, and Why You're Probably Doing it Wrong

I was confused by premultiplied alpha for a long time. ... The OpenGL FAQ on transparency says to use straight alpha blending.

#21. glBlendFunc - OpenGL ES 2 - docs.gl

The initial value is GL_ONE . dfactor. Specifies how the red, green, blue, and alpha destination blending factors are computed. The following symbolic constants ...

#22. textures with transparent background by using alpha blending ...

textures with transparent background by using alpha blending opengl. I have scar textures and I want to get rid of the background skin colour by using alpha ...

#23. full transparent object in openGL - Codding Buddy

Blending is OpenGL's mechanism for combining color already in the ... OpenGL texture with transparency (alpha), Restating the solution here so others can ...

#24. Alphablend a videoplane in OpenGL | Max Cookbook - UCI ...

(One can also blend two videos without GL, using the jit.alphablend ... We turn on the blend_enable attribute of the objects to enable this alpha blending, ...

#25. GPUs prefer premultiplication - Real-Time Rendering

The alpha value of a texel could be 255, meaning fully opaque, or 0, ... I searched on “premultiplied alpha opengl” to find this blending ...

#26. Weird problem rendering semi-transparent image to FBO

OpenGL add blend mode on frame buffer. plong0 June 29, 2009, 7:48pm #5. Hmm, so I tried disabling alpha blending before I draw the FBO… and the brush stroke ...

#27. File:OpenGL Tutorial Triangle alpha-blending.png - 維基教科書

File:OpenGL Tutorial Triangle alpha-blending.png. 無更高解析度可提供。 OpenGL_Tutorial_Triangle_alpha-blending.png ‎（648 × 509 像素，檔案大小：15 KB，MIME ...

#28. OpenGL Alpha blending and object independent transparency

Render opaque with depth write on. Disable depth write, enable alpha blending, and render the transparent objects. It work ok if I have fully opaque and ...

#29. OpenGL Alpha Blending - issue.. looking for advice

Im trying to implement alpha blending but im getting a weird result. ... When rendering transparent objects in OpenGL (with alpha other than 1 or 0) you ...

#30. WebGL and Alpha

#6) Using a blending equation that works with pre-multiplied alpha. Almost all OpenGL apps I've writing or worked on use. gl.blendFunc( ...

#31. Alpha blending - LWJGL Forum

http://s10.postimg.org/547zzxt3t/screenshot_201311076.png. Here is my code, how I init alpha blending when initializing opengl: ...

#32. opengl - blending with previous contents of framebuffer

Then later when you blend the whole FBO texture over the scene, that alpha makes your lines translucent. So if you have blending against "the world" but not ...

#33. Visual glBlendFunc and glBlendEquation Tool - Anders ...

Blend equation: ... Image presets; Image URLs; Blending color. Foreground: Background: ... David Geier for finding a bug with GL_SRC_COLOR and alpha values.

#34. Tutorial 4: Depth and Transparency - research.ncl.ac.uk ...

Alpha blending is also introduced, which allows objects in our OpenGL scene have a varying amount of transparency. New Concepts. Alpha, alpha blending, depth- ...

#35. OpenGL学习笔记——Blending-腾讯游戏学堂

丢弃片段的比较暴力了，直接判断alpha<某个常亮的片段，丢弃掉，不过这个if会产生逻辑分支，所以效率也就那样吧…… 环绕纹理设置成：GL_CLAMP_TO_EDGE 可以 ...

#36. Alpha Blending - JMP

SRC_ALPHA and ONE_MINUS_SRC_ALPHA are OpenGL constants that tell BlendFunc to use alpha to blend against the existing display buffer.

#37. [Shader筆記]透明物體(Z-Test、Z-Write、Z-Buffer - Medium

[Shader筆記]透明物體(Z-Test、Z-Write、Z-Buffer、Alpha Blending). “ shader development using Unity” + Unity shader 入門精要筆記.

#38. Alpha compositing - Wikipedia

In computer graphics, alpha compositing or alpha blending is the process of combining one image with a background to create the appearance of partial or ...

#39. lecture 20 Image Compositing

lecture 20. Image Compositing. - chroma keying. - alpha. - F over B. - OpenGL blending. - chroma keying revisited: "pulling a matte" ...

#40. Opengl 的片段着色器的Blend的疑惑片段着色器的Alpha ... - 知乎

首先我以前做的都是2d软渲染背景：现在开始接触到Opengl的可编程管线渲染。但是在了解了一点GPU的渲染管…

#41. Alpha Blending Concepts and Alpha Blending in OpenGL | CS ...

Material Type: Notes; Class: Introduction:Computer Graphics; Subject: Computer Science; University: West Virginia University; Term: Unknown 2006;

#42. Cheap tricks for OpenGL transparency « Alec's Web Log

I've been experimenting with some hacks using basic OpenGL commands to achieve high/good-quality transparency (alpha-blending).

#43. Blending (Blending, Antialiasing, Fog, and Polygon Offset ...

Blending (Blending, Antialiasing, Fog, and Polygon Offset) (OpenGL Programming). What's it all about, alpha? You've already seen alpha values (alpha is the ...

#44. 9.1. Transparency - OpenInventor Developer Zone -

use additive OpenGL alpha blending. DELAYED_ADD. use additive blending; render opaque objects first and transparent objects last. SORTED_OBJECT_ADD. use ...

#45. OpenGL深度缓存区、深度测试及alpha blend - CSDN

1. OpenGL深度缓存区、深度测试及alpha blend【颜色缓冲区】颜色缓冲区（COLOR_BUFFER）就是帧缓冲区（FRAME_BUFFER）,你需要渲染的场景最终每一个 ...

#46. OpenGL Alpha混合 - w3c學習教程

OpenGL Alpha 混合,原文lesson 8 blending 譯者cker opengl中的絕大多數特效都與某些型別的色彩混合有關。混色的定義為，將某.

#47. OpenGL ES (IPhone) alpha blending looks weird

I'm writing a game for IPhone in Opengl ES, and I'm experiencing a problem with alpha blending: I'm using to achieve alpha blending and trying to compose a ...

#48. WBOIT in OpenGL: transparency without sorting - posts in a ...

This post is about weighted blended order-independent ... The operator contains color (Cnear) and opacity (α) of a near fragment and overall ...

#49. OpenGL fragment shader alpha issues - JUCE Forum

I'm working on an OpenGL shader, which I want to have transparency. ... shader operating on top of a GUI so I need proper alpha blending.

#50. 11.4 - Transparency (and Alpha Blending) — LearnWebGL

11.4 - Transparency (and Alpha Blending)¶. The z-buffer algorithm for performing hidden surface removal stores the color of the object that is closest to ...

#51. OpenGL深度快取區、深度測試及alpha blend - IT閱讀

OpenGL 深度快取區、深度測試及alpha blend ... 注意：只要存在深度緩衝區，無論是否啟用深度測試（GL_DEPTH_TEST），OpenGL在畫素被繪製時都會嘗試將 ...

#52. NeHe OpenGL Lesson32 – Picking, Alpha Blending, Alpha ...

NeHe OpenGL Lesson32 – Picking, Alpha Blending, Alpha Testing, Sorting, Programmer All, we have been working hard to make a technical sharing website that ...

#53. Alpha Blending Textures And Primitives - ADocLib

OpenGL for Embedded Systems OpenGL ES or GLES is a subset of the OpenGL computer graphics Enhanced blending for sophisticated compositing and handling of ...

#54. 关于blend：OpenGL-FBO和alpha混合 - 码农家园

OpenGL - FBO and alpha blending我一直在寻找答案，但无法为我的问题找到答案。我有FBO，但无法进行Alpha混合和多重采样。 FBO将场景绘制为纹理， ...

#55. Alpha Blending - Lazy Foo' Productions

Alpha Blending. Last Updated 7/13/14. Thanks to new hardware accelerated rendering, transparency is much faster in SDL 2.0. Here we'll use alpha modulation ...

#56. QWindow with OpenGL alpha blending becomes translucent

QWindow with OpenGL alpha blending becomes translucent. Status: Assignee: Priority: Resolution: Closed. Giuseppe D'Angelo. Not Evaluated.

#57. Alpha Blending of OpenGL Tutorial - Titan Wolf

Jeff Molofee (NeHe) of the OpenGL Tutorial - Alpha mixed. Original text : Lesson 8: Blending Translator : CKERView ImageMost of the special effects in ...

#58. OpenGL ES (IPhone) alpha blending looks weird - OStack ...

I need to answer my own question: I couldn't make it work using ImageIO framework so I added libpng sources to my project and loaded the ...

#59. Android Opengl 2.0 Alpha Blending 问题- 半透明纹理 - IT工具网

Android Opengl 2.0 Alpha Blending 问题- 半透明纹理 ... 我在我的游戏中使用Apha Blending 有这个问题，当我绘制一个带有alpha 纹理的表面时，应该不可见的部分是不 ...

#60. alpha blending opengl - Travelremedy.com

color bleeding). Alpha compositing, OpenGL blending and premultiplied alpha. Do I need to render my primitives This is customarily called ...

#61. Order Independent Transparency In OpenGL 4.x - Search ...

Tail Handling: – Discard Fragments > K. – Blend below sorted and hope error is not obvious [Salvi et al.] ▫ Many close low alpha values are problematic.

#62. [Learn OpenGL 번역] 5-3. 고급 OpenGL - Blending - 게임공장

OpenGL 에서 Blending 이란 흔히 투명한 오브젝트를 구현하는 기술로 알려져있습니다. 투명은 하나의 단색 컬러 가지고 있는 것이 아니라 오브젝트 ...

#63. Efficient Alpha Blending - OpenCV Q&A Forum

@Adi ok. Do you have to render in opencv, or could you render in opengl? I have been using alpha channels in my application, and when I was ...

#64. Tutorial 09 : Blending - OpenGl - Jerome Jouvie

You will define a value for alpha which determine the percentage of for mixing source and destination colors. Translucent object. Mixing pictures. I will show ...

#65. OpenGL image with alpha are darker - eehelp.com

IMAQ Overlay Bitmap VI comes with the note "Ce VI does not support alpha blending." ...

#66. Blending in OpenGL - 日记- 豆瓣

Photoshop compositing with OpenGL blending of fixed pipeline ... in OpenGL Although frame buffer uses colors with straight alpha(if alpha ...

#67. openGL alpha blending example in c/c++

To enable blending, you should call glEnable(GL_BLEND) before calling glBlendFunc() function. [openGL alpha blending example]

#68. OpenGL uses Alpha transparency for testing - Programmer ...

Data 2018/7/4 by WJB Knowledge points: Blend mixing is a source color and destination color mixing in some manner to generate special effects technology. Mixing ...

#69. [Solved] Opengl alpha blending - CodeProject

It's likely caused because your using a 16-bit depth buffer, which means that from a distance there isn't enough detail in the depth buffer ...

#70. opengl - blending with previous contents of framebuffer

This all works fine, except that when I draw shapes with alpha less than 1 onto the texture, it does not blend properly with the texture's ...

#71. AlphaTocoverage + Alpha Blinding =文物-- opengl 領域和 ...

I also tested the following cases: Use alpha-to-coverage for the overlay instead of alpha blending: No artifacts. Clear the entire screen before rendering the ...

#72. How to blend the opengl es on QT in multi layers. - TI E2E

But if we use the opengl function in Qt to draw the osd, ... Is the opengl es with qt not support the alpha blending in hardware ...

#73. 纹理混合遇到的问题pre-multiplying OpenGL Android iOS

Alpha -blending pre-multiplying of texture OpenGL Android iOS. 问题. 在进行OpenGL 纹理混合的过程中，遇到樂一个诡异的现象，两个纹理混合 ...

#74. Issue #89 · haasn/libplacebo - Alpha blending with opengl

Hi in opengl/gpu.c iin function gl_fb_query you write: .caps = PL_FMT_CAP_RENDERABLE | PL_FMT_CAP_BLITTABLE, but then alpha blending does ...

#75. Alpha-blending with OpenGL in SDL (multiple textures)

I've been trying for the past day or so to get alpha-blending working with textures. The situation is as follows: I have a main texture that ...

#76. Alpha Blending: To Pre or Not To Pre | NVIDIA Developer

Alpha Blending is a small--but important--part of virtually every 3D application. Conceptually, alpha-blending is used to communicate the ...

#77. openGl alpha(blend) from luma image? - Jitter Forum

... transparent where the texture is black... i tried blend in openGL but i ... Generate the alpha channel with jit.lumakey or jit.chromakey ...

#78. OpenGL Android課程五：介紹混合（Blending）_奏響曲

alpha 通道，如何使用深度緩衝區在同一個場景中渲染半透明和不透明的物體，以及什麼時候按深度排序對象， 以及為什麼。 我們還將研究如何監聽觸摸事件， ...

#79. Additive (vs. Alpha Blended) in OpenGL View | Forums | SideFX

Hi everyone, Is there a way to draw things (in this case textured Sprites) as 'Additive' in the OpenGL View rather than 'Alpha Blended'? Thanks ...

#80. Multi-layer alpha blending | Request PDF - ResearchGate

We introduce multi-layer alpha blending, a novel solution to real-time order-independent transparency that operates in a single rendering pass and in ...

#81. BlendOp Min — How does it work? - Unity Forum

From how I understand the GL_MIN blend equation, it doesn't take alpha into account: http://www.opengl.org/wiki/Blending#Blend_Equations.

#82. masking in openGL - TIGSource Forums

But putting the transparency information straight into the alpha channel of your texture is what you want to do; OpenGL's blend modes are ...

#83. GLGraphics Alpha blending - Processing Forum

For my testing project, I'm using the codeanticode GLGraphics library and the core OpenGL. I have a question in how to set the alpha channel of ...

#84. OpenGL ES实践教程（八）blend混合与shader混合 - 腾讯云

blend 混合常用在绘制透明的图形，会用到RGBA颜色空间中的alpha值。 混合过程中可以通过glBlendFunc设定对应的混合方式，常见的混合模式如下： /* ...

#85. Alpha-Blending mit OpenGL ?!? - Google Groups

ich Alpha-Blending machen kann ... habe es zwar noch nicht in VB probiert, jedoch denke ich, dass es funzt ... MfG, Mirko Hansen. Schmidt ...

#86. How draw rounded rectangle with alpha blending in OpenGL ...

I have found some code that will allow me to draw a rounded rectangle in OpenGL immediate mode (here). What I would like to do it decrease ...

#87. ShaderLab command: Blend - Unity - Manual

Any signature that specifies a render target requires OpenGL 4.0+, GL_ARB_draw_buffers_blend , or OpenGL ES 3.2. Separate RGB and alpha blending is not ...

#88. iPhone OpenGL ES incorrect alpha blending - ExampleFiles.net

I have a problem with incorrect alpha blending results with openGL ES on iPhone. This is my code for creating texture object:

#89. OpenGL Blending Filter | Computer Graphics 2014

else if (g_filter == 3) // Alpha blending (back-to-front) = Cs*As + Cd*(1-As) glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

#90. Open Gl - C2 wiki

OpenGL has been used in high-end graphics systems for CAD and scientific visualization ... Stupidly, OpenGL requires two passes to blend alpha correctly.

#91. Tag: additive blending - Learn OpenGL ES

In a later lesson, we'll also look at how to use the alpha channel, how to use the depth buffer to render both translucent and opaque objects in ...

#92. OpenGL VI: using Alpha blending (transparency) - updated

CJC Delphi Title: OpenGL VI: using Alpha blending (transparency) - updated Question: The next in the series of articles on OpenGL with ...

#93. Alpha blending is six times slower in Metal than in OpenGL ES

Hi friends, I am porting my iPad game to Metal 2.0, the original one is written with OpenGL ES 2.0 with draw instanced extension.

#94. OpenGL Android课程五：介绍混合（Blending） - 掘金

alpha 通道，如何使用深度缓冲区在同一个场景中渲染半透明和不透明的物体，以及什么时候按深度排序对象， 以及为什么。 我们还将研究如何监听触摸事件， ...

#95. opengl alpha blend+blurring HELP!

opengl alpha blend +blurring HELP! Graphics and GPU Programming Programming. Started by maxam September 21, 2005 11:03 PM.

#96. Alpha Blending, Back To Front, Front To Back - The Hacks of Life

The idea is to change OpenGL's blend equation so that you can start at the front and blend in behind translucent geometry. To blend front to ...

#97. OpenGL: Alpha Blending using RGBA Textures

Hi there, I wonder how to activate alpha-texture blending (RGBA textures). I have found pieces of examples on the net but nothing seemed to ...

#98. 从0开始的OpenGL学习（二十）-融混 - 简书

本文主要解决一个问题： 如何在OpenGL中使用融混(Blending)操作？ ... 透过，边框的alpha值为1.0，表示不透明，四个角的alpha值为0，表示完全透明。