move genVertices() out of display()

1 files changed, 2 insertions, 3 deletions

diff --git a/balls.c b/balls.c
index 567e9d8..7fb3b3c 100644
--- a/balls.c
+++ b/balls.c
@@ -545,7 +545,8 @@ animate(int v) {
 	collideBalls();
 	cpuEvent = collideWalls();
 
-	/* Disply current from with GPU. */
+	/* Display current frame with GPU. */
+	genVertices();
 	display();
 
 	/* Copy next frame's positions from CPU to GPU. */
@@ -563,8 +564,6 @@ display(void) {
 
 	glClear(GL_COLOR_BUFFER_BIT |GL_DEPTH_BUFFER_BIT);
 
-	genVertices();
-
 	glBindVertexArray(vertexVAO);
 	for (i = 0; i < nBalls; i++)
 		glDrawArrays(GL_TRIANGLE_FAN, i*CIRCLE_POINTS, CIRCLE_POINTS);