torus.c
上传用户:xk288cn
上传日期:2007-05-28
资源大小:4876k
文件大小:2k
- /* Copyright (c) Mark J. Kilgard, 1996. */
- /* This program is freely distributable without licensing fees
- and is provided without guarantee or warrantee expressed or
- implied. This program is -not- in the public domain. */
- #include <string.h>
- #include <GL/glut.h>
- /* Modify these variables if necessary to control the number of
- iterations for per time sample, the GLUT display mode for the
- window, and the minimum test running time in seconds. */
- extern int testIterationsStep, testDisplayMode, testMinimumTestTime;
- void
- testInit(int argc, char **argv, int width, int height)
- {
- static GLfloat light_diffuse[] = {1.0, 0.0, 0.0, 1.0};
- static GLfloat light_position[] = {1.0, 1.0, 1.0, 0.0};
- int solid, i;
- glViewport(0, 0, width, height);
- glMatrixMode(GL_PROJECTION);
- gluPerspective(25.0, width/height, 1.0, 10.0);
- glMatrixMode(GL_MODELVIEW);
- gluLookAt(0.0, 0.0, 5.0,
- 0.0, 0.0, 0.0,
- 0.0, 1.0, 0.);
- glTranslatef(0.0, 0.0, -1.0);
- glColor3f(1.0, 0.0, 0.0);
- glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
- glLightfv(GL_LIGHT0, GL_POSITION, light_position);
- solid = 1;
- for (i = 1; i < argc; i++) {
- if (!strcmp("-light", argv[i])) {
- glEnable(GL_LIGHTING);
- glEnable(GL_LIGHT0);
- } else if (!strcmp("-depth", argv[i])) {
- glEnable(GL_DEPTH_TEST);
- } else if (!strcmp("-wire", argv[i])) {
- solid = 0;
- }
- }
- glNewList(1, GL_COMPILE);
- if (solid) {
- glutSolidTorus(0.25, 0.75, 100, 100);
- } else {
- glutWireTorus(0.25, 0.75, 100, 100);
- }
- glEndList();
- }
- void
- testRender(void)
- {
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- glCallList(1);
- }