Movmenet & duplication!

shaders/simple_shader.frag

@@ -1,9 +1,12 @@
 #version 450
 
-layout(location = 0) in vec3 fragColor;
-
 layout(location = 0) out vec4 outColor;
 
+layout(push_constant) uniform Push {
+  vec2 offset;
+  vec3 color;
+} push;
+
 void main() {
-  outColor = vec4(fragColor, 1.0);
+  outColor = vec4(push.color, 1.0);
 }