diff --git a/src/glfw_shader.cpp b/src/glfw_shader.cpp
index a9139b3..f884606 100644
--- a/src/glfw_shader.cpp
+++ b/src/glfw_shader.cpp
@@ -1,12 +1,19 @@
+// Writing a shader in opengl
+
 #include <glpy.h>
 #include <iostream>
 #include <GL/glew.h>
 #include <GLFW/glfw3.h>
 
+static unsigned int CompileShader(unsigned int fragmentShader,const std::string& source){
+    auto id = glCreateShader(GL_VERTEX_SHADER);
+    auto src = source.c_str();
+}
 
 static int CreateShader(const std::string& vertexShader, const std::string& fragmentShader){
-    unsigned int program = glCreateProgram();
-    unsigned int vs = glCreateShader(GL_VERTEX_SHADER);
+    auto program = glCreateProgram();
+    auto vs = CompileShader(GL_VERTEX_SHADER,vertexShader);
+
 }
 
 int tests::glfw_shader(unsigned width,unsigned height, std::string title)