diff options
Diffstat (limited to 'progs/trivial/tri.c')
| -rw-r--r-- | progs/trivial/tri.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/progs/trivial/tri.c b/progs/trivial/tri.c index d4a7f08ae34..aa45adb6c29 100644 --- a/progs/trivial/tri.c +++ b/progs/trivial/tri.c @@ -32,7 +32,7 @@ #define CI_OFFSET_2 32 -GLenum doubleBuffer; +GLenum doubleBuffer = 1; int win; static void Init(void) @@ -41,7 +41,7 @@ static void Init(void) fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); - glClearColor(0.0, 0.0, 1.0, 0.0); + glClearColor(0.3, 0.1, 0.3, 0.0); } static void Reshape(int width, int height) @@ -74,12 +74,12 @@ static void Draw(void) glClear(GL_COLOR_BUFFER_BIT); glBegin(GL_TRIANGLES); - glColor3f(0,0,.7); - glVertex3f( 0.9, -0.9, -30.0); glColor3f(.8,0,0); - glVertex3f( 0.9, 0.9, -30.0); + glVertex3f(-0.9, -0.9, -30.0); glColor3f(0,.9,0); - glVertex3f(-0.9, 0.0, -30.0); + glVertex3f( 0.9, -0.9, -30.0); + glColor3f(0,0,.7); + glVertex3f( 0.0, 0.9, -30.0); glEnd(); glFlush(); @@ -93,8 +93,6 @@ static GLenum Args(int argc, char **argv) { GLint i; - doubleBuffer = GL_FALSE; - for (i = 1; i < argc; i++) { if (strcmp(argv[i], "-sb") == 0) { doubleBuffer = GL_FALSE; @@ -120,7 +118,7 @@ int main(int argc, char **argv) glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); - type = GLUT_RGB; + type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); @@ -135,5 +133,5 @@ int main(int argc, char **argv) glutKeyboardFunc(Key); glutDisplayFunc(Draw); glutMainLoop(); - return 0; + return 0; } |