webgl tutorial

varVshader_source =[ "Attribute Vec4 a_position;", "Uniform mat4 U_projmatrix;", "Uniform float u_pointsize;", "Void Main () {", "gl_pointsize = u_pointsize;", "Gl_position = U_projmatrix * a_position;", "}"].join ("\ n")varFshader_source =[ "Precision Mediump float;", "Uniform sampler2d u_sampler;", "Void Main () {","Gl_fragcolor = Texture2d (U_SAMPLER,VEC2 (GL_POINTCOORD.X,1.0-GL

The threshold for using 3D technology in H5 is lower, based on WebGL (THREEJS), a subset of OpenGL's browsers, supporting most of the major 3D function interfaces. Currently the mainstream browser has better support, IE needs 11. Recently, the development of Web 3D computer room has been over, there is time to organize some of the results of this period. Mainly involves the use of H5, JS, WebGL technology.G

Boundless business Domain (http://blog.csdn.net/omni360/) This article follows the authoring common agreement "signed-non-commercial-Consistent" Reprint please keep this sentence: The business domain is boundless-this blog focuses on agile development and mobile and object-linked equipment research: Data visualization, Golang, HTML5, WEBGL, THREE. JS, otherwise, from this blog article refused to reprint or reprint, thank you for your cooperation. I

In WebGL, the opengl-es-2.0 API is called, and the opengl-es is designed for embedded devices, which, like other devices, use GLSL (GL shading Language) to write fragment programs and execute on the GPU shader. To complete rendering of the object. GLSL plays a very important role in it, so to play good webgl, we have to understand GLSL, this article mainly introduces the basic use of shader and composition.

Istrolid is an HTML5 game that uses many new web technologies. The game author treeform uses webGL, WebSocket, AudioContext, and the self-developed responsive HTML framework to render graphics, create network connections, play audio, and design the UI ........ .....,. Istrolid is an HTML5 game that uses many new web technologies. The game author treeform uses webGL, WebSocket, AudioContext, and the self-dev

To display 3D images in a browser, WebGL is usually used.Three. js(Http://mrdoob.github.com/three.js/),WebGLThe browser version and video card have high requirements, and many clients cannot use them normally. Later, I found it online.X3DOM(Http://www.x3dom.org/), by using different backend ),X3DOMIt can be compatible with earlier versions of browsers (mainly the IE series) or run without the support of video cards. The commonly used non-

Recently in touch with the unity of the WebGL platform, in fact, this platform as a substitute for Web player, has been able to meet most of the development needs, and do not need additional plug-in support, it is indeed convenient, but still encountered a lot of problems in development, here to record and share the solution.The first is the build option, in "Player Settings".Resolution and presentation and old Web Player don't change, you can put you

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. The results of this demo runouter, inner, and occlusion culling of polygonsThe index cache was last introduced, and drawing using IBO, using the index cac

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. The results of this demo runre-use of vertex cachesIn the previous article, a new vertex attribute was added to the three vertices of the polygon, which a

I've never noticed it before.After Unity publishes the WEBGL project, it opens the index.html that was released, no problem.But the cloth to IIS, opened with the address of the errorLook, the published things, there is a build folder, below a few extensions are. unityweb filesThink about it again. The MIME setting for IISThen set it up (see downloading Assetbundle from the IIS Web site and writing to the local disk for the specified path)In other word

Requirements of such clients developed with WEBGL but the landing interface is a normal HTML pageFor example, you go to the Unity WebGL page after landing BaiduBecause of the stateless and non-connected nature of HTTP, we need to use the address bar to pass the login information to the game interface.Customary code (Drip drive)? 1234567 [DllImport("__Internal")]private static extern string

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1. Using a buffer object to pass data from multiple vertices to the vertex shader requires the following five steps: 1.1 Create Buffer Object (Gl.createbuffer ()). 1.2 Bind Buffer Object (Gl.bindbuffer ()). 1.3 writes data to the buffer object (Gl.bufferdata ()). 1.4 Assigns the buffer object to a attribute variable (gl.vertexattribpointer ()). 1.5 Turn on the attribute variable (Gl.enablevertexattribarray ()). 2. Create a Buffer object (Gl.createbuffer ()) When using

WebGL can be used to render panoramas of the 3D effect, such as a panorama of the Forbidden City. But sometimes we're not just presenting panoramas, we need to increase our interaction. The Forbidden City can also be divided into a lot of areas, such as the outer-facing road, the west Road, and other east-facing road. We need to make some markup on the 3D chart to indicate a small area. When this tag is clicked, the interface switches to the panorama

Google Chrome + Mozilla Firefox 4+ Safari 5.1+ (Mac OS X OS only, excluding Windows) Opera Alpha and above ie9+, but IE does not support WEBGL, but you can download and install IEWEBGL this plugin WebGL is a 3D drafting standard that allows the combination of JavaScript and OpenGL ES 2.0, and by adding a JavaScript binding to OpenGL ES 2.0, WebGL ca

This shows you a super-realistic cloud effect using HTML5 WebGL. WebGL is a technology that renders 3D images in a Web browser, as opposed to the need to install a browser plugin in the past, and with WebGL technology, you only need to write a Web page code to visualize the 3D image.WebGL provides hardware 3D accelerated rendering for HTML5 Canvas so that Web dev

Opengles and the organization format of vertex attributes in WebGL-a joke that's not funnyThe 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 fr

After Unity has packaged WebGL, edit the package-generated index.html file with a text editorModify the code inside the generated HTML DOCTYPE HTML>HTMLLang= "en -us"> Head> MetaCharSet= "Utf-8"> Metahttp-equiv= "Content-type"content= "text/html; charset=utf-8"> title>Unity WebGL Player | Avatertitle> Scriptsrc= "Build/unityloader.js">Script> Script> vargameinstance=Unityloade

The published WebGL project, to load assetbundle smoothly, needs to be noticed from the time of packagingBuildPipeline.BuildAssetBundles(outPath, BuildAssetBundleOptions.ChunkBasedCompression, BuildTarget.WebGL);Be sure to note the publishing platform:BuildTarget.WebGLAs for compression modeBuildAssetBundleOptions.ChunkBasedCompression //LZ4BuildAssetBundleOptions.NoneEither way, not the others.When loaded, WEB