gl inet

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Drawing OpenGL line s

/** * Buffer tool class */ Public class bufferutil { /** * Convert a floating point group to a byte Buffer */ Public static bytebuffer arr2bytebuffer (float [] ARR ){ Bytebuffer Ibb = bytebuffer. allocatedirect (ARR. length * 4 ); Ibb. Order (byteorder. nativeorder ()); Floatbuffer fbb = Ibb. asfloatbuffer (); Fbb. Put (ARR ); Ibb. Position (0 ); Return Ibb; } /** * Convert list to byte Buffer */ Public static bytebuffer list2bytebuffer (list Bytebuffer Ibb = bytebuffer. allocatedirect (list. S

OpenGL getting started

/** * Entry, triangle */ // Custom Renderer Class myrenderer implements Android. OpenGL. glsurfaceview. Renderer { Private float ratio; // When the surface layer is created Public void onsurfacecreated (gl10 GL, eglconfig config ){ // Set the screen color Gl. glclearcolor (0, 0, 0, 1 ); // Enable the vertex buffer. Gl. glableclientstate (gl10.

WebGL uses FBO to complete the cube Paster effect (with demo source code download), webglfbo

functions of WebGL, in this paper, we do not use a perfect framework, but only use a framework (gl-matrix.js) to help calculate the matrix ). Like using OpenGL, We need to initialize the use environment and extract some global usage. The related code is as follows: Initialization: Var gl; // WebGLRenderingContextvar cubeVBO; // Cube buffer IDvar sphereVBO; // sphere VBOvar sphereEBO; // sphere EBOvar cubeT

WebGL Initial Knowledge 2

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 shadersThe data that is required by the vertex shader can be obtained in the following three way

FreeBSD (system optimization)

After the ports and src are upgraded, the infrastructure is complete. Now let's compile the kernel.Enter the Kernel configuration file directory# Cd/usr/src/sys/i386/conf# Mkdir/root/kernels# Cp GENERIC/root/kernels/IM. RD. BJ# Ln-s/root/kernels/IM. RD. BJIM. RD. BJ: the name of your new Kernel configuration file.Compile the kernel# Cd/usr/src# Make buildkernel KERNCONF = IM. RD. BJInstall Kernel# Make installkernel KERNCONF = IM. RD. BJYou can configure your own Kernel File IM. RD. BJ before co

Dumpbin. exe

dumpbin, use the following syntax: DUMPBIN [options] files... Specify one or more binary files and any options required to control information. Dumpbin displays the information to the standard output. You can redirect the output to a file, or use the/out option to specify the file name for the output. When dumpbin is run on the file but no option is specified, dumpbin displays/summary output. When you type a commanddumpbinHowever, when there is no other command line input, dumpbin displays usag

Analysis of variable sequence algorithm for topological sequencing

string that stores N-relationshipsVertexnode *GL: Array of vertex tablesOutput variable: An array of vertex tables representing graphsreturn value: Int: number of vertices*/Intcreategraph (char *data, Vertexnode *GL){int i, u, v;int count = 0;//record vertex countEdgenode *e;for (i=0; i{Gl[i].data = i + ' a ';gl[i].in

Android 3D Rotation triangle (3)

onsurfacecreated (gl10 GL, eglconfig config) {// called after surface is created// Todo auto-generated method stub// Enable the differentiation of which side may be visibleGl. glable (gl10.gl _ cull_face); // enable the culling surface to ensure only one side// Which is the front? The one which is drawn counter clockwiseGl. glfrontface (gl10.gl _ CCW); // gl_ccw

OpenGL draws squares

/*** Buffer tool class*/Public class bufferutil {/*** Convert a floating point group to a byte Buffer*/Public static bytebuffer arr2bytebuffer (float [] ARR ){Bytebuffer Ibb = bytebuffer. allocatedirect (ARR. length * 4 );Ibb. Order (byteorder. nativeorder ());Floatbuffer fbb = Ibb. asfloatbuffer ();Fbb. Put (ARR );Ibb. Position (0 );Return Ibb;}/*** Convert list to byte Buffer*/Public static bytebuffer list2bytebuffer (list Bytebuffer Ibb = bytebuffer. allocatedirect (list. Size () * 4 );Ibb. O

WebGL (5)--Polygon

This article refers to the WebGL Programming Guide Using the knowledge from the previous chapter, draw the following points:Source:Test.jsfunctionMain () {varGL =Init (); if(!GL) {Console.log (' Failed to Init '); return; } varn =initvertices (GL); if(N ) {Console.log (' Failed to init vertices '); return; } gl.drawarrays (GL. POINTS,0, n);}//@Func: init th

09 Topological sequencing _topologicalsort

adjlist;int numvertexes,numedges; /* Current number of vertices and number of edges in the graph */}graphadjlist,*graphadjlist;/* **************************** */void Createmgraph (Mgraph *g)/* Component Diagram */{int I, J;/* printf ("Please enter the number of sides and vertices:"); */g->numedges=maxedge;g->numvertexes=maxvex;for (i = 0; i {g->vexs[i]=i;}for (i = 0; i {for (j = 0; J {g->arc[i][j]=0;}}g->arc[0][4]=1;g->arc[0][5]=1;g->arc[0][11]=1;g->arc[1][2]=1;g->arc[1][4]=1;g->arc[1][8]=1;g->

[Getting Started with WebGL] 15, applying a color to a polygon (specified by vertex color)

(vertex_position); var Color_vbo = Create_vbo (Vertex_color);//VBO Binding (location Intelligence) Gl.bindbuffer (GL. Array_buffer, Position_vbo); Gl.enablevertexattribarray (attlocation[0]); Gl.vertexattribpointer (attLocation[0), ATTSTRIDE[0], GL. FLOAT, False, 0, 0);//VBO binding (color Intelligence) Gl.bindbuffer (GL. Array_buffer, Color_vbo); Gl.enableverte

SharpGL learning notes (2) model transformation, sharpgl learning notes

private void openGLControl1_OpenGLInitialized(object sender, EventArgs e) 22 { 23 24 } 25 26 private void openGLControl1_Resize(object sender, EventArgs e) 27 { 28 29 } 30 31 private void openGLControl1_OpenGLDraw(object sender, PaintEventArgs e) 32 { 33 SharpGL.OpenGL gl = this.openGLControl1.OpenGL; 34 35 gl.ClearColor(0, 0, 0, 1); 36 gl

Draw a circle in 3D

Method@ OverridePublic Boolean ontouchevent (motionevent e ){Float y = E. Gety ();Float x = E. getx ();Switch (E. getaction ()){Case motionevent. action_move:Float DY = Y-mpreviousy; // calculates the y displacement of the touch pen.Float dx = x-mpreviousx; // calculates the Y-shift of the touch pen.Mrenderer. cylinder. manglex + = Dy * touch_scale_factor; // you can specify the Rotation Angle along the X axis.Mrenderer. cylinder. manglez + = DX * touch_scale_factor; // you can specify the Rota

Application of needsUpdate in three. js

performed, however, we are not considering this issue for the moment. The frequency of the second step should be the most important. First, write a simple program to test the consumption caused by this step of transmission.The Code is as follows:Var canvas = document. createElement ('canvas ');Var _ gl = canvas. getContext ('experimental-webgl ');Var vertices = [];For (var I = 0; I Vertices. push (I * Math. random ());}Var buffer = _

Possible product changes after Adobe's MM acquisition [Reprinted from the blue ideal]

AbbreviationPS = Photoshop/AI = Illustrator/GL = GoLiveAE = AfterEffects/LM = LiveMotion/AS = AtmosphereDW = DreamWeaver/FW = FireWorks/ First of all, Look clearly. What I'm talking about is possible. Don't blame me if it doesn't happen in the future. From the perspective of Adobe's sudden acquisition of Macromedia, it was actually premeditated. After seeing that the MM product line is constantly enriched and improved, AdobeFinally, we made a try-and-

[WebGL Primer] 16, drawing multiple models

multiplied with the previous result, passed to uniform, and then plotted.So, take a look at the actual code.Part of the code in >script.jsThe generation and initialization of various matrices var Mmatrix = m.identity (M.create ()), var Vmatrix = m.identity (M.create ()), var PMatrix = m.identity ( M.create ()), var Tmpmatrix = m.identity (M.create ()), var Mvpmatrix = m.identity (M.create ());//view x projection coordinate transformation matrix M.lookat ([0.0 , 0.0, 3.0], [0, 0, 0], [0, 1, 0],

For example, how to use dumpbin.exeto check the information embedded by the compiler, dumpbin.exe Compiler

the original binary details of the file.Only the/headers dumpbin option can be used for files generated by the/GL compiler option. 2 /ARCHIVEMEMBERS This option displays the minimum information about database Member objects.Only the/headers dumpbin option can be used for files generated by the/GL compiler option. 3 /CLRHEADER file Image files generated by/clr.RemarksCLRHEADER

Android ndk calls OpenGL to implement Texture

First of all, there are too few colleagues in OpenGL, especially ndk, in China. There are many problems encountered in this process, and these problems need to be found on the book, on the Internet, on a variety of materials, and the book is called at the java layer, the lack of various file cases on the internet, only by studying at the java layer and finding the required knowledge points in various cases can google search foreign websites solve the problem. Next body -----------------------

OpenGL Cropping Area

/*** Buffer tool class*/Public class bufferutil {/*** Convert a floating point group to a byte Buffer*/Public static bytebuffer arr2bytebuffer (float [] ARR ){Bytebuffer Ibb = bytebuffer. allocatedirect (ARR. length * 4 );Ibb. Order (byteorder. nativeorder ());Floatbuffer fbb = Ibb. asfloatbuffer ();Fbb. Put (ARR );Ibb. Position (0 );Return Ibb;}/*** Convert list to byte Buffer*/Public static bytebuffer list2bytebuffer (list Bytebuffer Ibb = bytebuffer. allocatedirect (list. Size () * 4 );Ibb. O

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