Add imgui

shaders/textured-rectangle-vertex.glsl

@@ -1,11 +1,10 @@
 #version 330 core
 
 layout (location = 0) in vec2 inputVertex;
-uniform float zoom;
-uniform vec2 pos_offset;
+uniform mat4 model_matrix;
+uniform mat4 projection_view_matrix;
 
 void main()
 {
-	vec2 pos2d = (inputVertex - pos_offset) * zoom;
-	gl_Position = vec4(pos2d.x , pos2d.y, 0.0, 1.0);
+	gl_Position = projection_view_matrix * model_matrix * vec4(inputVertex.x , inputVertex.y, 0.0, 1.0);
 }