1 files changed, 32 insertions, 4 deletions
diff --git a/progs/vp/vp-tris.c b/progs/vp/vp-tris.c
index 87cb12b984..e9b2479c63 100644
--- a/progs/vp/vp-tris.c
+++ b/progs/vp/vp-tris.c
@@ -16,6 +16,8 @@
 
 static const char *filename = NULL;
 static GLuint nr_steps = 4;
+static GLuint prim = GL_TRIANGLES;
+static GLfloat psz = 1.0;
 
 static void usage( char *name )
 {
@@ -198,8 +200,9 @@ static void Display( void )
 {
    glClearColor(0.3, 0.3, 0.3, 1);
    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+   glPointSize(psz);
 
-   glBegin(GL_TRIANGLES);
+   glBegin(prim);
 
 
    {
@@ -243,9 +246,34 @@ static void Key( unsigned char key, int x, int y )
    (void) x;
    (void) y;
    switch (key) {
-      case 27:
-         exit(0);
-         break;
+   case 'p':
+      prim = GL_POINTS;
+      break;
+   case 't':
+      prim = GL_TRIANGLES;
+      break;
+   case 's':
+      psz += .5;
+      break;
+   case 'S':
+      if (psz > .5)
+         psz -= .5;
+      break;
+   case '+':
+      nr_steps++;
+      break; 
+   case '-':
+      if (nr_steps) 
+         nr_steps--;
+      break;
+   case ' ':
+      psz = 1.0;
+      prim = GL_TRIANGLES;
+      nr_steps = 4;
+      break;
+   case 27:
+      exit(0);
+      break;
    }
    glutPostRedisplay();
 }