OGL ORTHO PROBLEM

///////////////////////////// VERTEX SHADER///////////////////////////////////////////
#version 330 core
layout (location = 0) in vec2 aPos;
layout (location = 1) in vec2 aTexCoord;

out vec2 TexCoord;

uniform mat4 model;
uniform mat4 projection;

void main()
{
	gl_Position = vec4((vec4(aPos, 1.0, 1.0) * model * projection));
	TexCoord = vec2(aTexCoord.x, aTexCoord.y);
}

/////////////////// GRAPHIC MATH FUNCTIONS ///////////////////////////////////////
matrix4 matrix4::ortho(const float width, const float height,
		       const float near_plane, const float far_plane)
{
    float zoom_x = 2/width;
    float zoom_y = 2/height;
    float n1 = -2 / (far_plane - near_plane);
    float n2 = -(far_plane + near_plane) / (far_plane - near_plane);

    return matrix4{{        zoom_x, 0, 0, 0,
			    0, zoom_y, 0, 0,
			    0, 0, n1, n2,
			    0, 0, 0, 1,}};
}

matrix4 matrix4::translation(const float x, const float y, const float z)
{

    return matrix4{{        1, 0, 0, 0,
			    0, 1, 0, 0,
			    0, 0, 1, 0,
			    x, y, z, 1,}};
}

matrix4 matrix4::from_martrix2(const matrix2x2 a)
{
    return matrix4{{        a.n[0], a.n[1], 0, 0,
			    a.n[2], a.n[3], 0, 0,
			    0     ,      1, 0, 0,
			    0,   0,      0,  1,}};
}

///////////////////////////////////////// RENDER FUNCTION //////////////////////////////////////////////////////
    void Sprite::draw_sprite(uint64_t tex, PF location, PF scale, float rotation, float layer)
    {
	auto scale_2d = matrix2x2::scale(scale.first, scale.second);
	auto scaled = matrix4::from_martrix2(scale_2d.multiply(matrix2x2::rotation(rotation)));
	auto model = scaled.multiply(matrix4::translation(location.first, location.second, layer));

	shader.set_mat4("model", model);
	shader.set_mat4("projection", projection);

	shader.set_int("texture1", 0);
	glActiveTexture(GL_TEXTURE0);
	glBindTexture(GL_TEXTURE_2D, tex);

	shader.use();
	glBindVertexArray(VAO);

        glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
	glBindVertexArray(0);
    }