mesa(OpenGL)安装

Mesa是一个类OpenGL(http://www.opengl.org)的开源实现

环境：

centos 7

安装方法1：

步骤

问题及解决：

在“./configure“时报告以下错误：
Requested ‘libdrm_intel >= 2.4.61’ but version of libdrm_intel is 2.4.60

解决方法：安装libdrm更高版本，找到这个程序的pc文件，在控制台添加其路径：
export PKG_CONFIG_PATH=/usr/lib/pkgconfig

安装方法2:

yum install mesa*
yum install glut

安装测试：

查看是否支持３D渲染：
glxinfo |grep rendering
查看glx的安装信息：
glxinfo |grep “OpenGL vendor”
glxinfo |grep “OpenGL version”

/* *  As a first example of using OpenGL in C, this program draws the *  classic red/green/blue triangle.  It uses the default OpenGL *  coordinate system, in which x, y, and z are limited to the range *  -1 to 1, and the positive z-axis points into the screen.  Note *  that this coordinate system is hardly ever used in practice. * *  When compiling this program, you must link it to the OpenGL library *  and to the glut library. For example, in Linux using the gcc compiler, *  it can be compiled with the command: * *          gcc -o first-triangle first-triangle.c -lGL -lglut */#include <GL/gl.h>#include <GL/glut.h>   // freeglut.h might be a better alternative, if available.void display() {  // Display function will draw the image.    glClearColor( 0, 0, 0, 1 );  // (In fact, this is the default.)    glClear( GL_COLOR_BUFFER_BIT );    glBegin(GL_TRIANGLES);    glColor3f( 1, 0, 0 ); // red    glVertex2f( -0.8, -0.8 );    glColor3f( 0, 1, 0 ); // green    glVertex2f( 0.8, -0.8 );    glColor3f( 0, 0, 1 ); // blue    glVertex2f( 0, 0.9 );    glEnd();    glutSwapBuffers(); // Required to copy color buffer onto the screen.}int main( int argc, char** argv ) {  // Initialize GLUT and    glutInit(&argc, argv);    glutInitDisplayMode(GLUT_SINGLE);    // Use single color buffer and no depth buffer.    glutInitWindowSize(500,500);         // Size of display area, in pixels.    glutInitWindowPosition(100,100);     // Location of window in screen coordinates.    glutCreateWindow("GL RGB Triangle Setup Test"); // Parameter is window title.    glutDisplayFunc(display);            // Called when the window needs to be redrawn.    glutMainLoop(); // Run the event loop!  This function does not return.                    // Program ends when user closes the window.    return 0;}