49 lines
892 B
C
49 lines
892 B
C
#include <stdlib.h>
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#include <GL/gl.h>
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#include <GL/glut.h>
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void paint(void)
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{
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glClearColor(0.3,0.3,0.3,0.0);
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glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
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glShadeModel(GL_SMOOTH);
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glLoadIdentity();
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glTranslatef(-15.0, -15.0, 0.0);
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glBegin(GL_TRIANGLES);
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glColor3f(1.0, 0.0, 0.0);
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glVertex2f(0.0, 0.0);
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glColor3f(0.0, 1.0, 0.0);
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glVertex2f(30.0, 0.0);
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glColor3f(0.0, 0.0, 1.0);
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glVertex2f(0.0, 30.0);
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glEnd();
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glFlush();
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}
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void reshape(int width, int height)
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{
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glViewport(0, 0, width, height);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glOrtho(-30.0, 30.0, -30.0, 30.0, -30.0, 30.0);
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glMatrixMode(GL_MODELVIEW);
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}
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int main(int argc, char *argv[])
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{
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glutInit(&argc, argv);
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glutInitWindowSize(640, 480);
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glutCreateWindow("Triangle");
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glutDisplayFunc(paint);
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glutReshapeFunc(reshape);
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glutMainLoop();
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return EXIT_SUCCESS;
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}
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