webgl course

the normal JavaScript array, of course, the array object can, but can not use associative array, to use a one-dimensional array. For example, when a polygon is defined by three vertices, it is written as follows. > Example of saving an array of model datavar vertex_position = [ //X, Y, Z 0.0, 1.0, 0.0, 1.0, 0.0, 0.0, -1.0, 0.0, 0.0];In order to make it easier for everyone to see, add a line in the middle, you can see that this is a

[WebGL entry] 3. Basic 3D drawing knowledge, webgl3d Note: The article is translated from http://wgld.org/, the original author shanbenya (doxas). If I have additional instructions in the article, I will add [lufy:]. In addition, the research on webgl is not in-depth enough, and some professional words are required, if the translation is incorrect, please correct me. 2D and 3D 3D space-the real world we l

an abstract design, the number of vertices and the number of polygons will be greatly reduced, but it is more difficult to talk about design, really annoying.connection order and occlusion culling of verticesYou use vertices and lines to join together to draw polygons, which are connected in order. Connecting clockwise or counterclockwise, this order is actually very important.To say this is why, for example, to draw a sphere, the sphere, no matter where you take the photograph, it must be a b

Bindbuffer function again. Set the second parameter to NULL to invalidate the last binding, in order to prevent cache consistent retention in WebGL. and expected inconsistencies.Summary The attributes in the vertex are joined by the program Ape, and the number of VBO required is the number of attributes added.The individual data of the vertex attribute, using a purely one-dimensional array, of course, the

important.Suppose to some extent understand the use of the matrix, in the actual development encountered what problems, you can know how to find the reason. Then, it can be further improved. So, not all of a sudden all understand, first grasp the matrix processing process and use can be.proficiency with external librariesIn DirectX and OpenGL, many matrix-related processing is built in, and matrix calculations are possible even without using an external library.However, in

div-like area to implement 3d rendering in this area. The usage is similar to that of common OpenGL. In fact, canvas labels also appear in html5. The first supported is 2d drawing, and now WebGl-based 3d Painting. The game Quake II implements WebGL-based transplantation so that you can use a browser to play a large 3d game like Quake. In fact, Quake II is a HTML5-based game. The following are HTML5 technic

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

Getting started with WebGL developmentWebGL Getting started with developmentWhat is Unity WebGL?What is Unity WebGL ? The WEBGL build option allows Unity to publish content as JavaScript programs which use HTML5 technologies and the WebGL R Endering API to run Unity content

Memory Considerations when targeting WebGLBuild WebGL memory considerations at the targetMemory in Unity WebGL can a constraining factor restricting the complexity of the content can run, so we would like To provide some explanation on what memory is used in WebGL.For unity WebGL, memory limits the complexity of the content being run. Below we will explain how me

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 Canvas so that Web developers can display 3D scenes and models more smoothly in the browser

Http://www.csdn.net/article/2013-12-19/2817854-IE11-WebGL-and-moreSummary: IE11 started to support WebGL and worked very well, IE11 's WebGL renderer was more than 10 times times faster than canvas2d and found the same results on other WEBGL-enabled browsers, which would improve the performance of many games.Microsoft'

not explained in detail here, people who want to know more can check the relevant information on their own. The inner product can be easily computed with the shader's built-in function, which does not need to be feared. As long as you have the right data, the rest of the calculation is given to WebGL. So, this time, you have to modify the vertex shader , and of course the JavaScript section needs to be

WebGL supports detection with supported browser version rollupThe 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 repr

WebGL Performance TruthHTML5 's canvas provides two drawing contexts (Graphic context): One is "2d" for plotting two-dimensional vectors, and the other is "WebGL" for drawing three-dimensional graphics. The two-dimensional vector diagram API provides a very user-friendly function, 10 minutes to get started, so CANTK chose to use the two-dimensional vector diagram API. The "

phone, can not be counted on the internet phone?Of course, flex, Silverlight, and many of the C + + engines that use ActiveX are also available on the web to run the 3D engine, but who can ignore mobile and have been fed up with a hodgepodge of web development solutions over the years, Every time to operator customer operation and maintenance terminal to see the old IE running a variety of plug-ins mixed with the fragile system, a variety of OA manuf

Animating scenes with WebGL + three.js3D graphics, technology, product creation, and the Internet: these are just a few of my hobbies.Now, thanks to the advent of WebGL-a new JAVASCRIPTAPI, it can render 3D images in the browser without relying on any plug-in-which makes the 3D rendering operation incredibly simple.With the development of virtual reality and augmented reality applications, large manufacture

extent understand the use of the Matrix method, in the actual development encountered what problems, you can know how to find the reason. Then, it can be further improved. Therefore, do not have to understand all of a sudden, first grasp the matrix processing flow and use can be.proficiency with external librariesIn DirectX and OpenGL, many matrix-related processing is built in, and matrix calculations can be performed even without using an external library.However, in

Article Introduction: The WebGL is a 3D drawing standard that allows JavaScript and OpenGL ES 2.0 to be combined to provide hardware 3D acceleration rendering for HTML5 canvas. The WEBGL technology standard eliminates the hassle of developing Web page-specific rendering plug-ins and can be used to create Web pages with complex 3D structures and even to design 3D web games. The

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

Webgl Introduction: webgl is a cross-platform, royalty-free web standard for a low-level 3D graphics API Based on OpenGL ES 2.0, exposed through the HTML5 Canvas Element as Document Object Model interfaces. developers familiar with OpenGL ES 2.0 will recognize webgl as a shader-based API using glsl, with constructs that are semantically similar to those of the un