setUniform4f in Shader

shaders/frag.frag

@@ -1,7 +1,10 @@
 #version 330 core
+
+uniform float time;
+
 out vec4 FragColor;
 
 void main()
 {
-    FragColor = vec4(1.0f, 0.5f, 0.2f, 1.0f);
+    FragColor = vec4(sin(time), sin(time/2), sin(time/4), 1.0f);
 }

shaders/vert.vert

@@ -1,4 +1,7 @@
 #version 330 core
+
+uniform float time;
+
 layout (location = 0) in vec3 aPos;
 
 void main()