webgl tutorial

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. important ways to useThe computational method of matrices is not a particularly strange and complex thing, and if mathematics is studied well, there is no

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 runincrease the number of vertex attributesLast time, we finally drew a triangle, but only a pure white polygon was drawn.This ti

The students who are familiar with WebGL know that the WebGL drawing mode is a little, a line, a polygon of three kinds, the particle system can be realized through the drawing of the point, and the connection is drawn through the line, and the surface is strong, and we can draw all the three-dimensional objects we want to draw.Everything looks perfect, perfect.Unfortunately, however,

Here we will construct a HT for web-based Html5+javascript to implement the Hanoi game. Http://hightopo.com/demo/hanoi_20151106/index.html Hanoi game rules and recursive algorithm analysis please refer to Http://en.wikipedia.org/wiki/Tower_of_Hanoi. Knowing the rules and algorithms of Hanoi, we now start creating elements. Creating a chassis and 3 pillars with the HT for WEB (http://www.hightopo.com) existing 3D template is not a problem, the problem is to create several hollow discs. The first

Example of a 3D data center based on HTML5 WebGL, html5webgl3d data center Preface The 3D data center rendered with WebGL is nothing new now. The main purpose of this article is to explain that the eye and center problems in the 3D data center are just used in the project, after thinking about it, I finally thought that this example is the most suitable for my requirements and will be used as a record. Th

Lesson 7th: Light Parallel Light: directional lights Environment light: ambient lights Webgl does not have built-in support for light. Unlike OpenGL, webgl can help you process at least eight light sources. However, OpenGL can only deal with simple illumination. Even non-flat objects cannot be processed, and shadows cannot be processed. The goal is to virtualize the light source in a scenario. First, we nee

built into WebGL, and the value needs to be turned on.How to achieve a hybrid?1. Turn on the blending function: Gl.enable (GL. BLEND).2. Specify the Blending function: Gl.blendfunc (GL. Src_alpha, GL. One_minus_src_alpha).If we only set the fourth component of the color, and the transparency effect is not visible, you must perform the above two steps.6.gl.blendfunc (Src_factor, Dst_factor)The functions of blending are specified by the parameters Src_

In a large amount of data 2D scene, to find a specific model is difficult, and can only show a part of the model, the display is not intuitive, this time can quickly build a 3D scene there is a great demand. But building 3D scenarios and relying on 3DS Max or Maya professional 3D designers to model, Unity 3D engine to do graphics rendering, this is a challenge for users! However, the HT one-stop solution provides one-stop solutions from modeling to rendering, including component rendering and da

animation effect of the view, so that the animation process to change which properties. Change the amplitude of each animated frame, before animating the various event handlers. Multi-animation parallel or serial processing everything can be in your own hands.The first contact with the easing concept is to learn flash/flex when exposed to the demo here. This demo for the first time to my easing intuitive feeling. Now, based on HTML5 's ability to participate in the http://easings.net/,Easing fu

Similar to Webplayer, use SendMessage in JSFor example, there is a gameobject in the unity scene, called A,There's a C # script on A, there's a waypublic void F(string str){ //do something...}Call this method with JS in the published WebGL project index.htmlNote that gameinstance, first to initialize a gameinstance, such as the code, in the Gameinstance call SendMessage methodOnline Many examples are directly write SendMessage, this will be an

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 runthree-dimensional modelThis time, I began to draw a stereo model.The word [catch] here refers to the absence of any new techni

The previous article describes WebGL.Further streamlined here.The whole content of WEBGL is to create different shaders,Provides data to the shader and then calls gl.drawArrays or gl.drawElementsLets WebGL invoke the current vertex shader to process each vertex, calling the current fragment shader to render each pixel.Since shaders require data, shaders are divided into two parts, vertex and fragment shader

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 runColoring methodThe last time the reflection light is introduced, the reflection is the indispensable concept to achieve luster

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 runAll kinds of lightlast time, and last time, the lighting effect was introduced through the vertex shader. At the beginning, th

Nextscreen = (Nextproj.xy/abs (NEXTPROJ.W) + 1.0)0.5UVIEWPORT.ZW;?? ??? ? vec2 dir;?? ??? ? float len = Aoffset;?? ??? ? if (aposition = = Apositionpre) {?? ??? ??? ? dir = normalize (Nextscreen-currscreen);?? ??? ?} else if (aposition = = Apositionnext) {?? ??? ??? ? dir = normalize (Currscreen-prevscreen);?? ??? ?} else {?? ??? ??? ? vec2 Dira = normalize (Currscreen-prevscreen);?? ??? ??? ? vec2 DIRB = normalize (Nextscreen-currscreen);?? ??? ??? ? vec2 Tanget = Normalize (Dira + DIRB);?? ??

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

Supermap 9D Products, you can obtain the SIMD values of the model before calling the Setonlyobjsvisible method to control the display and concealment of individual objects in the model.var Smid = "94"; The Smid value of the floor, multiple floors, in the form of an arrayvar ids = [];var layers = viewer.scene.layers;var layer = Layers.find (scpname);Ids.push (Smid);Layer.setonlyobjsvisible (Ids,false); Only the captured SIMD values are hidden, and the other objects do not change.Supermap

U3d's Assetbundle really is Bo (pit) Big fine (pit) deep AHAndroid words to pack into Streamingassetpath first, after installation, the first run, automatically streaming in the decompression to Persistentdatapath, because the persistent directory was run once before the creation.This will then be downloaded directly to the persistent directory after updating the resources.But what about the WebGL project?There's no such thing as streaming or persiste

At the end of the WWDC2014, this conference is a veritable developer conference, and it's more appropriate to say it's a software developer's conference, which is exciting for more features of OSX and iOS, and Swift's new language has contributed to theBut what I'm more interested in is that WEBGL has finally been officially supported on OSX and iOS, and this "A first look at what iOS8 means for Phaser and pixi.js" share a picture of the

has been interested in WebGL, finally mentioned the spirit of learning, the road is long AH ~Source: WebGL Chinese web http://www.hewebgl.com1, three major formationIn Three.js, to render an object to a Web page, we need 3 builds: Scene, camera, and renderer (renderer). With these three things, you can render objects to a Web page.Remember the key statement: With these three things, we can use the camera to