From 512c4e8c95776cad3bb3b411b088f54ef364e23f Mon Sep 17 00:00:00 2001
From: Bert Peters <bert@bertptrs.nl>
Date: Fri, 16 Mar 2018 14:37:37 +0100
Subject: [PATCH] Tweak animation step a little.

Animation now starts slightly after the start and ends slightly before
the end. This prevents a weird flicker effect in the image like layers.
---
 src/main.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main.cpp b/src/main.cpp
index 2e54067..b4d962f 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -167,7 +167,7 @@ static void idleFunc()
     checkGLErrors();
     glutPostRedisplay();
     throttleIdleFunc();
-    rendererData.animationStep = (1 - cos(M_PI * getAnimationStep(std::chrono::seconds(5)))) / 2;
+    rendererData.animationStep = 0.025f + 0.95f * (1 - cos(M_PI * getAnimationStep(std::chrono::seconds(5)))) / 2;
 }
 
 int main(int argc, char *argv[])