Eric
On Thu, 10 Apr 2003 20:48:28 -0400 "John M. Gabriele" <jandl@xxxxxxxxxxx> wrote:
Hi,
I just bought and installed RH9 and then manually installed the
glut-3.7-12 and glut-devel-3.7-12 rpms. The following code (see
below) builds and runs, but doesn't display anything. Note that,
glxinfo tells me that direct rending is working (I've got a Matrox
G400), and glxgears proves it. :)
It builds and runs fine on Solaris 8 SPARC (for me here at work).
Is there a problem with glut on RH9?
If not, could you please suggest what I might try to uncover
what the problem is?
[code] // tester.cpp
#include <GL/glut.h>
//================================================ void my_init(); void my_display_func(); void my_reshape_func( int w, int h );
//================================================
int main( int argc, char * argv[] )
{
glutInit( &argc, argv );
glutInitDisplayMode( GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH );
glutInitWindowSize( 600, 600 );
glutInitWindowPosition( 50, 50 );
glutCreateWindow( "tester" );
my_init();
glutDisplayFunc( my_display_func ); glutReshapeFunc( my_reshape_func );
glutMainLoop(); return 0; }
//================================================ void my_init() { glClearColor( 0.0, 0.0, 0.0, 0.0 ); glEnable( GL_DEPTH_TEST ); }
//================================================
void my_display_func()
{
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glColor3f( 0.1, 0.7, 0.3 ); glBegin( GL_LINE_STRIP ); glVertex3d( 0.2, 0.2, 0.0 ); glVertex3d( -0.2, 0.2, 0.0 ); glVertex3d( -0.2, -0.2, 0.0 ); glVertex3d( 0.2, -0.2, 0.0 ); glEnd();
glutSwapBuffers(); }
//================================================ void my_reshape_func( int w, int h ) { if ( w > h ) { glViewport( w/2 - h/2, // x_bottom_left_corner 0, // y_bottom_left_corner h, // width (x, to the left) h ); // height (y, up) } else { glViewport( 0, h/2 - w/2, w, w ); }
glMatrixMode( GL_PROJECTION ); glLoadIdentity(); gluPerspective( 35.0, // fovy 1.0, // aspect 2.0, // near 6.0 ); // far
glMatrixMode( GL_MODELVIEW ); glLoadIdentity(); gluLookAt( 0.0, 0.0, 4.0, // eye position 0.0, 0.0, 0.0, // looking at 0.0, 1.0, 0.0 ); // which way is up
glutPostRedisplay(); }
[/code]
and my makefile is
[code] # makefile for glut_tester #
APP_NAME = glut_tester LIBS = -lglut -lGLU -lGL -L/usr/X11R6/lib -lXmu -lXi
$(APP_NAME): main.o
g++ main.o -Wall -ansi -pedantic-errors -o $(APP_NAME) $(LIBS)
main.o: main.cpp g++ -c main.cpp
clean: rm -f $(APP_NAME) rm -f *.o
[/code]
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