Attachment 33930 Details for Bug 27007 – A program that demonstrates the bug

A program that demonstrates the bug

antialiasing_bug.c (text/plain), 957 bytes, created by Søren Hauberg on 2010-03-10 18:39:15 UTC

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Creator: Søren Hauberg

Created: 2010-03-10 18:39:15 UTC

Size: 957 bytes

patch

obsolete

>#include <GL/gl.h>
>#include <GL/glu.h>
>#include <GL/glut.h>
>#include <stdlib.h>
>
>void init (void) 
>{
>  glClearColor (1.0, 1.0, 1.0, 0.0);
>
>  glOrtho (0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
>
>  // Here lies the cause of my troubles
>  glEnable (GL_LINE_SMOOTH);
>  glEnable (GL_BLEND);
>  glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
>  glHint (GL_LINE_SMOOTH_HINT, GL_NICEST);
>}
>
>void display (void)
>{
>  // Just draw a black line on white background
>  glClear (GL_COLOR_BUFFER_BIT);
>  glColor3f (0.0, 0.0, 0.0);
>
>  glLineWidth (1);
>  glBegin (GL_LINE_STRIP);
>    glVertex3f (0.50, 0.0, 1.0);
>    glVertex3f (0.51, 1.0, 0.0);
>  glEnd ();
>  glFlush ();
>}
>
>int main(int argc, char** argv)
>{
>  // Standard GLUT init
>  glutInit (&argc, argv);
>  glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
>  glutInitWindowSize (250, 250); 
>  glutInitWindowPosition (100, 100);
>  glutCreateWindow ("hello");
>  init ();
>  glutDisplayFunc (display); 
>  glutMainLoop ();
>
>  return 0;
>}

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Attachments on bug 27007: 33930 | 33931 | 33962

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