diff --git a/include/pthread_barrier.h b/include/pthread_barrier.h
new file mode 100644
index 0000000..fb9bd6f
--- /dev/null
+++ b/include/pthread_barrier.h
@@ -0,0 +1,68 @@
+#ifdef __APPLE__
+
+#ifndef PTHREAD_BARRIER_H_
+#define PTHREAD_BARRIER_H_
+
+#include <pthread.h>
+#include <errno.h>
+
+typedef int pthread_barrierattr_t;
+typedef struct
+{
+    pthread_mutex_t mutex;
+    pthread_cond_t cond;
+    int count;
+    int tripCount;
+} pthread_barrier_t;
+
+
+int pthread_barrier_init(pthread_barrier_t *barrier, const pthread_barrierattr_t *attr, unsigned int count)
+{
+    if(count == 0)
+    {
+        errno = EINVAL;
+        return -1;
+    }
+    if(pthread_mutex_init(&barrier->mutex, 0) < 0)
+    {
+        return -1;
+    }
+    if(pthread_cond_init(&barrier->cond, 0) < 0)
+    {
+        pthread_mutex_destroy(&barrier->mutex);
+        return -1;
+    }
+    barrier->tripCount = count;
+    barrier->count = 0;
+
+    return 0;
+}
+
+int pthread_barrier_destroy(pthread_barrier_t *barrier)
+{
+    pthread_cond_destroy(&barrier->cond);
+    pthread_mutex_destroy(&barrier->mutex);
+    return 0;
+}
+
+int pthread_barrier_wait(pthread_barrier_t *barrier)
+{
+    pthread_mutex_lock(&barrier->mutex);
+    ++(barrier->count);
+    if(barrier->count >= barrier->tripCount)
+    {
+        barrier->count = 0;
+        pthread_cond_broadcast(&barrier->cond);
+        pthread_mutex_unlock(&barrier->mutex);
+        return 1;
+    }
+    else
+    {
+        pthread_cond_wait(&barrier->cond, &(barrier->mutex));
+        pthread_mutex_unlock(&barrier->mutex);
+        return 0;
+    }
+}
+
+#endif // PTHREAD_BARRIER_H_
+#endif // __APPLE__
diff --git a/psystem b/psystem
index 6dc5c07..e26c538 100755
Binary files a/psystem and b/psystem differ
diff --git a/source/main.cpp b/source/main.cpp
index bec9a19..9f425bc 100644
--- a/source/main.cpp
+++ b/source/main.cpp
@@ -1,4 +1,9 @@
 #include "main.h"
+
+#ifdef __APPLE__
+#include "pthread_barrier.h"
+#endif
+
 #include "axis.h"
 #include "camera.h"
 #include "grid.h"
@@ -26,7 +31,7 @@ const unsigned int SCR_WIDTH = 2560;
 const unsigned int SCR_HEIGHT = 1440;
 const char *glsl_version;
 
-const unsigned int PARTICLE_COUNT = 500;
+const unsigned int PARTICLE_COUNT = 5000;
 
 GLFWwindow *window;
 unsigned int VBO, VAO;