opengl basics

';} Point (int x, int. y) {point (x, Y, Color (0, 0, 0));} Point (int x, int y, color color) {this->x = X;this->y = Y;this->color = Color;} void Show () {Glcolor3d (color. R, color. G, color. B); Glbegin (gl_points); Glvertex2i (this->x, this->y); Glend ();} Public:int X;int Y; color color;}; #endifThe last is the most important applicationApplicationClass, this class is used to add windows and image redraw refreshes/********************************************************** file name: applicat

defaults to whiteFillColor = Color (255,255,255);//Fill color defaults to whiteBorderWidth =1;//Border width defaults to 1mode = notfilling; } Public://Rectangle fill modeStatic Const intFILLING =0;//Fill Rectangle Static Const intNotfilling =1;//Do not fill rectangle}; #endifHere is a test code:#include "Window.h"#include "Application.h"#include "Line.h"#include "Rectangle.h"//Hide Console window#pragma COMMENT (linker, "/subsystem:\" windows\ "/entry:\" Maincrtstartup\ "")intMainintARGC,Ch

OpenGl basics 2. opengl Basic graphic rendering process 1. create GLSurfaceView 2. initialize Renderer 3. onSurfaceCreated (), onSurfaceChanged (), onDrawFrame () Three Methods 4. coloring tool (vertex coloring tool, chip coloring tool) 5. vertex color texture 6. draw Projection OpenGL only provides two projection met

//Then delete the previous starting point void MoveTo (point p) {if (This->status = = This->line_start) {points.pop_back (); return;} Points.push_back (p); this->status = This->line_start;} Draw the end point of the line, if it starts at the end point. Forbid join void LineTo (point p) {if (This->status = = This->line_start) {this->points.push_back (P);this-> status = This->line_end;return;}} Join the node array void addpoints (point* p,int size) {for (int i = 0; i Here is an example of a pentag

(point p) {if (This->status = = This->line_ START) {points.pop_back (); return;} Points.push_back (p); this->status = This->line_start;} Draw line termination point, forbid add void LineTo (point p) {if (This->status = = This->line_start) {This->points.push_ If first is the terminating point) Back (p); this->status = This->line_end;return;}} Add a node array void addpoints (point* p,int size) {for (int i = 0; i Here is an example of a pentagram:(Inside the window and application, point class in

design of the client, how do we make a detailed design of the client?(2) class diagram:Four, 3D scene module design(1) Thinking:Based on the display requirements of the 3D interface and the interface requirements of the 3D scene module, what aspects should be considered for the detailed design of the module?(2) class diagram:Welcome everyone to learn to communicate, if there is insufficient to criticize correct, reproduced please indicate the source, thank you for your support. If you also like

Glutinitdisplaymode (Glut_rgb | Glut_single); Glutinitwindowposition (50, 50);//Set Window position glutinitwindowsize (400, 300);//Set Window size Glutcreatewindow ("Moon light in front of bed" ");//Create a window named" Moonlight Light In Bed "Glmatrixmode (gl_projection);//Set Projection parameters gluortho2d (0.0, 200.0, 0.0, 150.0); The orthogonal projection matrix//left and right are the minimum and maximum x values, and the top and bottom are the minimum and maximum Y values Glutdisplay

the camera position and specify it through the point pointed by the camera. You also need to specify an upward vector. For convenience, the vector is usually set to (0, 1, 0) or the Y axis in the coordinate system. Void glulookat (gldouble eyex, gldouble eyey, gldouble Eyez, Gldouble ATX, gldouble Aty, gldouble atz, Gldouble UPX, gldouble upy, gldouble upz) // Determine a matrix that can be used for camera positioning and targeting. The parameters involved include the camera position (viewpoint

In fact, the main purpose of my personal study of Android is to learn how to develop 3D effects on this platform. So let's start with the topic. OpenGL ES (OpenGL for Embedded Systems) is a subset of OpenGL 3D graphics APIs. It is designed for Embedded devices such as mobile phones, PDAs, and game hosts.This API was defined and promoted by Khronos group, a graph

OpenGL ES introduction OpenGL-ES is a cross-platform, fully functional API for 2D and 3D graphics applications free of license fees, it is mainly designed for a variety of embedded systems, including consoles, mobile phones, handheld devices, household appliances and automobiles. It consists of a well-defined subset of desktop OpenGL, creating a flexible and powe

Small man (Bill man) Personal Original, welcome to reprint, reprint please indicate the address, small man (Bill man) column address http://blog.csdn.net/bill_man 1. OpenGL ES OpenGL ES (OpenGL for Embedded System) is a subset of OpenGL designed for embedded devices. It also incorporates some extended functions to redu

1 OpenGL basics 1.1 What is OpenGL OpenGL is called Open graphics language. It refers to open graphical program interfaces. It is a cross-platform standard used for 3D rendering and 3D addition. In other words, OpenGL is a 3D API, it is an important communication bridge betw

In this section, let's take a brief look at OpenGL.(1) OpenGL Overview:OpenGL (Open graphics Library) is a professional graphics program interface that defines a cross-programming language, cross-platform programming interface specification. It is used for three-dimensional image (two-dimensional also), is a powerful, easy to call the bottom three-dimensional graphics processing library, is also the industr

Introducing State Machines Glbegin () and Glend () Glflush () and Glfinish () OpenGL Introduction OpenGL is a software interface for graphics hardware. It is designed as a hardware-independent interface that can run on a variety of different hardware platforms. OpenGL programs can also work across networks (in the form of client-server), even if the client and

AbstractPreviously, we discussed the issue in the Windows nc-greenpli line. If you want to perform PLI in Linux nc-greenpli, some places are not exactly the same ‧ IntroductionThe differences between Windows and Linux nc-OpenGL are as follows: First, Windows uses Visual C ++ 6.0 kernel, and Linux uses GCC kernel. Second: windows and Linux have the same design path. Fortunately, if you use the standard C statement to modify PLI, you can skip windows p

Wgl–windows OpenGL Expansion Layer The WGL extension consists of a set of functions (Wglcreatecontext, Wgldeletecontext etc.) and structures (such as Pixelfo Rmatdescriptor, glyphmetricsfloat) etc. Thus every OpenGL implementation has a platform-specific portion which has to is set up and used according to the Particul AR platform. Device context The Windows graphical Device Interface (GDI) is capable of

3.1. OpenGL functions in Windows NT As described in the previous chapter, OpenGL in Windows NT also contains more than 100 library functions. These functions are named in a certain format, that is, each function starts with GL. In addition to basic OpenGL functions, OpenGL in Windows NT also supports the following four

1, based on VC + + WIN32+CUDA+OPENGL combination of remote sensing image displayIn this combination scenario, OpenGL is set to the following two ways when initialized, with the same effect// setting mode 1glutinitdisplaymode (glut_double | GLUT_RGBA); // setting Mode 2glutinitdisplaymode (glut_double | GLUT_RGB);Extracting the pixel data from the remote sensing image data, the R, G, and b three channels ca

From the original text about OpenGL, OpenGL ES, WebGL summaryI. Introduction to OpenGLOpenGL (Full-write open Graphics Library) is a specification that defines a cross-programming language, cross-platform programming interface, which is used for three-dimensional graphic images (two-dimensional). OpenGL is a professional graphics program interface, is a powerful,

Related topics: vertex arrays, display lists, pixel buffer objects Download: Vbo.zip, Vbosimple.zip Create VBO to draw VBO Update Vbo ExampleThe Gl_arb_vertex_buffer_object extension improves OpenGL performance by providing the advantages of vertex arrays and display lists and avoiding their shortcomings. The vertex buffer object (vertex buffer object,vbo) allows the vertex array to be stored in high-performance graphics memory located on the server s