vectors are now passed to the gpu instead of being embedded to the shader

shaders/fragment.frag

@@ -1,9 +1,9 @@
 #version 450
 
-layout(location = 0) in vec3 in_color;
+layout(location = 0) in vec3 frag_color;
 layout(location = 0) out vec4 out_color;
 
 void main()
 {
-    out_color = vec4(in_color, 1.0);
+    out_color = vec4(frag_color, 1.0);
 }