better animate rate (Marcelo Magallon)

1 files changed, 12 insertions, 6 deletions

diff --git a/progs/demos/gloss.c b/progs/demos/gloss.c
index e7d687508c..4e7adc8d48 100644
--- a/progs/demos/gloss.c
+++ b/progs/demos/gloss.c
@@ -21,9 +21,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
+#include <string.h>
 #include <GL/glut.h>
 
-#include "readtex.c"   /* I know, this is a hack. */
+#include "readtex.h"
 
 #define SPECULAR_TEXTURE_FILE "../images/reflect.rgb"
 #define BASE_TEXTURE_FILE "../images/tile.rgb"
@@ -43,7 +44,7 @@ static GLuint Object = 0;
 static GLboolean Animate = GL_TRUE;
 
 static GLfloat Xrot = 0.0, Yrot = 0.0, Zrot = 0.0;
-static GLfloat DXrot = 1.0, DYrot = 2.5;
+static GLfloat DXrot = 20.0, DYrot = 50.;
 
 static GLfloat Black[4] = { 0, 0, 0, 0 };
 static GLfloat White[4] = { 1, 1, 1, 1 };
@@ -58,13 +59,18 @@ static GLint T0 = 0;
 static GLint Frames = 0;
 
 
-
-
 static void Idle( void )
 {
+   static double t0 = -1.;
+   double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
+   if (t0 < 0.0)
+      t0 = t;
+   dt = t - t0;
+   t0 = t;
+
    if (Animate) {
-      Xrot += DXrot;
-      Yrot += DYrot;
+      Xrot += DXrot*dt;
+      Yrot += DYrot*dt;
       glutPostRedisplay();
    }
 }