X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=progs%2Ftrivial%2Ftri-fog.c;h=0cea3d325829ba01901a2ceb5f4aaa27736f36b3;hb=82c2f7756af19f0a19aeda7ea1f627262e4561c0;hp=75f3262ecf4becbb61fe03c65a5260e395f5f5c4;hpb=4b7a84a36108eff8f17cbdf2c511593eb3260fd2;p=mesa.git

diff --git a/progs/trivial/tri-fog.c b/progs/trivial/tri-fog.c
index 75f3262ecf4..0cea3d32582 100644
--- a/progs/trivial/tri-fog.c
+++ b/progs/trivial/tri-fog.c
@@ -40,8 +40,18 @@ static void Init(void)
    fprintf(stderr, "GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
    fprintf(stderr, "GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
    fprintf(stderr, "GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
+   fflush(stderr);
 
     glClearColor(0.0, 0.0, 1.0, 0.0);
+
+    glEnable(GL_FOG);
+    glFogi(GL_FOG_MODE, GL_LINEAR);
+    glFogf(GL_FOG_START, 25);
+    glFogf(GL_FOG_END, 35);
+#if 0
+    glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+    glEnable (GL_BLEND);
+#endif
 }
 
 static void Reshape(int width, int height)
@@ -70,26 +80,26 @@ static void Key(unsigned char key, int x, int y)
 
 static void Draw(void)
 {
-   glClear(GL_COLOR_BUFFER_BIT); 
+   glClear(GL_COLOR_BUFFER_BIT);
 
    glEnable(GL_FOG);
 
    glBegin(GL_TRIANGLES);
-   glColor3f(0,0,.7); 
+   glColor3f(1,1,1);
    glVertex3f( 0.9, -0.9, -30.0);
-   glColor3f(.8,0,0); 
+   glColor3f(1,1,1);
    glVertex3f( 0.9,  0.9, -30.0);
-   glColor3f(0,.9,0); 
-   glVertex3f(-0.9,  0.0, -30.0);
+   glColor3f(1,1,1);
+   glVertex3f(-0.9,  0.0, -40.0);
    glEnd();
 
 #if 0
    glBegin(GL_TRIANGLES);
-   glColor3f(0,0,.7); 
+   glColor3f(0,0,.7);
    glVertex3f(-0.9, -0.9, -30.0);
-   glColor3f(.8,0,0); 
+   glColor3f(.8,0,0);
    glVertex3f(-0.9,  0.9, -30.0);
-   glColor3f(0,.9,0); 
+   glColor3f(0,.9,0);
    glVertex3f( 0.9,  0.0, -30.0);
    glEnd();
 #endif
@@ -138,7 +148,7 @@ int main(int argc, char **argv)
     type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
     glutInitDisplayMode(type);
 
-    if (glutCreateWindow("First Tri") == GL_FALSE) {
+    if (glutCreateWindow(*argv) == GL_FALSE) {
 	exit(1);
     }