#version 330 core
layout (location = 0) in vec3 pos;
uniform vec4 uniform_color;
out vec4 vertex_color;
const mat4 to_draw_coordinates_matrix = mat4(
    1., 0., 0., 0.,
    0., -1., 0., 0.,
    0., 0., 1., 0.,
    -1, 1, 0, 1);
void main()
{
    gl_Position = to_draw_coordinates_matrix*vec4(pos, 1.0f);
    vertex_color = uniform_color;
}