enable webgl

Android supported WebGL from 5.0, and I encountered some 5.0 devices not supported in the actual development, the original chromium to run GPUs unstable or compatibility problems of the device will disable WebGL.On the Android platform you can access Chrome://gpu by installing Chorme Browser, find reset notification strategy This configuration item does turn off WEBGL support, if the value is 0x8252 it supp

1. Clear the drawing area Emptying the plot area fills the canvas with the specified background color and sets the background color using Gl.clearcolor. Gl.clearcolor (red, green, blue, alpha). The color value of OpenGL returns is 0-1. Call the Gl.clear () function to empty the drawing area with the background color specified by Clearcolor. Gl.clear (G.color_buffre_bit), cleans up the drawing area, actually cleans the color buffer (colour buffers), passing the GL. Color_buffer_bit is telling

The WEBGL program uses both HTML and JavaScript on the screen to create and display three-dimensional graphics. The newly introduced Because the Get the WebGL drawing contextvar gl = getwebglcontext (canvas, true);Getwebglcontext (element, [debug]);Gets the WebGL drawing context, or if the Debug property is turned on, an error message is displayed in the console

Note: The article is translated from http://wgld.org/, the original author Sambonja 広 (doxas), the article if there is my additional instructions, I will add [Lufy:], in addition, The WEBGL research is not deep enough, some professional words, if the translation is wrong, you are welcome to correct. Two-and three-dimensionalThree-dimensional space-we live this reality of the world is a three-dimensional space.In the three-dimensional world, everything

WebGL boot load trigger update process AnalysisThe beautiful Life of the Sun Vulcan (http://blog.csdn.net/opengl_es)This article follows "Attribution-non-commercial use-consistent" authoring public agreementReprint Please keep this sentence: Sun Vulcan's Beautiful Life-this blog focuses on Agile development and mobile and IoT device research: IOS, Android, HTML5, Arduino, Pcduino , Otherwise, the article from this blog refused to reprint or re-repro

in the main loop should be understood. Summary This demo, the lens will always remain in the ring and around the circle around the ring rotation. Although only a simple rotation processing, but deliberately used four yuan, which is also to enable us to understand more deeply. With Minmatrixb.js and four-dollar numbers, you can easily rotate a vector. If you look at the Minmatrixb.js code, you can learn more about the four-dollar operation calculati

Note: The article is translated from http://wgld.org/, the original author Sambonja 広 (doxas), the article assumes that I have additional instructions, I will add [Lufy:]. Other than that. My own WEBGL research is not deep enough, some professional words. Suppose the translation is wrong. You are welcome to correct me. the meaning of the vertex attributeIn the last article, we introduced the generation of shaders, the compilation, the generation of pr

This paper illustrates the method of WebGL using FBO to finish the cube mapping effect. Share to everyone for your reference, specific as follows: This main record WebGL some of the basic points, incidentally also learn how to use FBO and environment mapping. First look at the effect map (need to support Webgl,chrome, Firefox, IE11). The main realization proc

Note: The article is translated from http://wgld.org/, the original author Sambonja 広 (doxas), the article assumes that I have additional instructions, I will add [Lufy:], in addition, My own WEBGL research is not deep enough, some professional words, assuming that the translation is wrong, welcome to correct them. Important UsageThe computational method of matrices is not a particularly strange and complicated thing, assuming that mathematics is well

Note: The article is translated from http://wgld.org/, the original author Sambonja 広 (doxas), the article if there is my additional instructions, I will add [Lufy:], in addition, The WEBGL research is not deep enough, some professional words, if the translation is wrong, you are welcome to correct. something that can be painted in three-dimensional space.To say what can be depicted in the WebGL world, ever

Write the frontWebGL is a real hassle. It's a lot more painful than a normal 2d drawing.If you feel that Canvas2d native API is enough for you to toss, then WebGL will make you more helpless.Difficult to draw in the WEBGL process because it only provides the interface to operate the graphics cardWebGL is like the sister of OpenGL. Sister is a process-oriented so sister is the same!(I am my sister)For this,

Unity uses Websocket to implement WebGL online games (no plug-ins) and websocketwebglOpening Before Unity supports WebGL, You need to convert it into a Flash Platform for publishing for web games, but there are many things that need special processing in the middle. Or, if you do not use Flash, you need Unity WebPlayer. This is a Web plug-in. You must install this plug-in your browser before running the too

Introduction of Three.jsThree main elements: scene, camera and rendererScene: The container in the animation, all objects exist in a scene, three-dimensional scenes similar to the canvas in a two-dimensional animationCamera: A visual angle that shoots a scene and can capture a different scene by switching position and angleRenderer: Renders the contents of the camera to the browser, and the end user sees the camera's scene through the browser.The relationship between themCreate a scene: var scen

1. WebGL WaterThis incredible demo is as fluid as could believe. Raise and drop the ball into the water to see realistic, beautiful splashing of the water. You can also just click on the water to see it ripple away. I ' m completely awestruck at how realistic and smooth the animation are in this excellent WebGL demo. Unreal.View Demo2. Fizzy CamFizzy Cam uses your machine's webcam to display your likeness i

Today IOS8 finally officially released, upgrade the equipment on hand for me the most important thing is to test the WebGL 3D is really able to run the Apple system, ran a number of HT for the web 3D examples are very smooth, than Android just support WebGL when much better, basically haven't found any problem , Apple is still worthy of affirmation, do not do, to do the real can use

1. Texture coordinates Texture coordinates are the coordinates on the texture image, and texture coordinates can be used to get the texture color on the texture image. The texture coordinate system in the WEBGL system is two-dimensional. To differentiate between texture coordinates and widely used x and y coordinates, WEBGL uses S and t to name texture coordinates (ST coordinate systems). The four corner c

, there is an interesting phenomenon here, we obviously follow the translation of the Py, rotation XZ and the order of scaling SF as the input of the row matrix multiplication, but in the later process text description, I follow the inverse to explain. What is this for? Because the matrix is stored in a two-dimensional array, WebGL passes through the shader in the process of passing the matrix to the shader , that is, the shader is processed by the da

I am preparing to graduate this year's senior students, is fast into the social programming small white one, the university during their own on-line collection of information on the WEBGL related basic courses, now here to share my study with the books, hope to help many want to learn but do not know how to do the people, we progress together.1. First, for people with a certain JavaScript base, you can read the [JavaScript authoritative Guide (sixth E

Recently collected a variety of information, found that the WebGL Chinese network is particularly useful, very suitable for beginners: http://www.hewebgl.com/article/getarticle/50Just need to download all the packages needed, and then use Notepad can start to write code, run code I choose Google Chrome, in fact, IE is the same, purely personal beliefs.Then for the cube, the code given is very clear:Have written the site page words know HTML processing

From the beginning of writing code, the Chinese cause countless problems, this time is no exception. There are two ways to use Chinese in WebGL: One, a new canvas to write Chinese , and then added to the WebGL, the advantage is not to load a specific font, the page can use what font it can use what font, and as long as the normal DOM API to refresh the DOM content,