static const std::string DISPLAY_VERTEX_SHADER_CODE = R"( #version 330 core layout (location = 0) in vec2 screen_vertex; layout (location = 1) in vec2 texture_vertex; out vec2 TexCoords; void main() { gl_Position = vec4(screen_vertex, 0.0, 1.0); TexCoords = texture_vertex; } )";