diff options
Diffstat (limited to 'progs/tests/fogcoord.c')
-rw-r--r-- | progs/tests/fogcoord.c | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/progs/tests/fogcoord.c b/progs/tests/fogcoord.c deleted file mode 100644 index 89355742aa..0000000000 --- a/progs/tests/fogcoord.c +++ /dev/null @@ -1,102 +0,0 @@ -/* - * Exercise GL_EXT_fog_coord - */ - - -#define GL_GLEXT_PROTOTYPES -#include <stdio.h> -#include <stdlib.h> -#include <math.h> -#include <GL/glut.h> - -static int Width = 600; -static int Height = 200; -static GLfloat Near = 5.0, Far = 25.0; - - -static void Display( void ) -{ - GLfloat t; - - glClearColor(0.2, 0.2, 0.8, 0); - glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); - - for (t = 0.0; t <= 1.0; t += 0.25) { - GLfloat f = Near + t * (Far - Near); - printf("glFogCoord(%4.1f)\n", f); - glFogCoordfEXT(f); - - glPushMatrix(); - glTranslatef(t * 10.0 - 5.0, 0, 0); - glBegin(GL_POLYGON); - glVertex2f(-1, -1); - glVertex2f( 1, -1); - glVertex2f( 1, 1); - glVertex2f(-1, 1); - glEnd(); - glPopMatrix(); - } - glutSwapBuffers(); -} - - -static void Reshape( int width, int height ) -{ - GLfloat ar = (float) width / (float) height; - Width = width; - Height = height; - glViewport( 0, 0, width, height ); - glMatrixMode( GL_PROJECTION ); - glLoadIdentity(); - glFrustum( -ar, ar, -1.0, 1.0, Near, Far ); - glMatrixMode( GL_MODELVIEW ); - glLoadIdentity(); - glTranslatef( 0.0, 0.0, -15.0 ); -} - - -static void Key( unsigned char key, int x, int y ) -{ - (void) x; - (void) y; - switch (key) { - case 27: - exit(0); - break; - } - glutPostRedisplay(); -} - - -static void Init( void ) -{ - printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); - printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); - /* setup lighting, etc */ - if (!glutExtensionSupported("GL_EXT_fog_coord")) { - printf("Sorry, this program requires GL_EXT_fog_coord\n"); - exit(1); - } - glFogi(GL_FOG_COORDINATE_SOURCE_EXT, GL_FOG_COORDINATE_EXT); - glFogi(GL_FOG_MODE, GL_LINEAR); - glFogf(GL_FOG_START, Near); - glFogf(GL_FOG_END, Far); - glEnable(GL_FOG); - printf("Squares should be colored from white -> gray -> black.\n"); -} - - -int main( int argc, char *argv[] ) -{ - glutInit( &argc, argv ); - glutInitWindowPosition( 0, 0 ); - glutInitWindowSize( Width, Height ); - glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH ); - glutCreateWindow(argv[0]); - glutReshapeFunc( Reshape ); - glutKeyboardFunc( Key ); - glutDisplayFunc( Display ); - Init(); - glutMainLoop(); - return 0; -} |