Work towards doing transformations using uniforms

shader/background.vert

@@ -1,8 +1,14 @@
 #version 430 core
 layout (location = 0) in vec4 params;
-layout (location = 1) in vec2 winSize;
+layout (location = 1) in vec2 winSizea;
 out vec4 vParams;
 out vec2 vWinSize;
+
+uniform vec2 winSize;
+uniform float zoom;
+uniform vec2 translation;
+uniform float rotation;
+
 void main()
 {
   gl_Position = vec4(0,0,0,0);