From 3cc008621f81d395adb3b515d31c4b344713e96f Mon Sep 17 00:00:00 2001
From: beppe <beppe.vanrolleghem@gmail.com>
Date: Thu, 25 Apr 2024 15:19:54 +0200
Subject: [PATCH] hello_world

---
 learning/hello_world/main.frag | 17 +++++++++++++++++
 readme.md                      |  0
 2 files changed, 17 insertions(+)
 create mode 100644 learning/hello_world/main.frag
 create mode 100644 readme.md

diff --git a/learning/hello_world/main.frag b/learning/hello_world/main.frag
new file mode 100644
index 0000000..78a21c9
--- /dev/null
+++ b/learning/hello_world/main.frag
@@ -0,0 +1,17 @@
+#ifdef GL_ES
+precision mediump float;
+#endif
+
+uniform float u_time;
+
+vec4 col() {
+  float r = abs(sin(u_time));
+  float g = abs(cos(u_time/2.0));
+  float b = abs(tan(u_time/3.0));
+  return vec4(r, g, b, 1.0);
+}
+
+void main() {
+  gl_FragColor = vec4(col());
+}
+
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..e69de29