--- 2.25/x3d/src/x3d.c.ORIG	Wed May 17 02:00:45 2000
+++ 2.25/x3d/src/x3d.c	Mon Jun 26 22:27:29 2000
@@ -1049,9 +1049,15 @@
 
 /* An 16 bit TrueColor ? */
 
+#if defined(__linux__)
+#define SIXTEEN  15
+
+       if(XMatchVisualInfo(g->dpy, screen, 15, TrueColor, &vInfo)){
+#else
 #define SIXTEEN  16
 
        if(XMatchVisualInfo(g->dpy, screen, 16, TrueColor, &vInfo)){
+#endif
          g->depth = SIXTEEN;
        }else{