// artificial scope to delete temp array
{
	std::array<float, 9> vertices = {{
		-0.5f, -0.5f, 0.0f,
		 0.5f, -0.5f, 0.0f,
		 0.0f,  0.5f, 0.0f
	}};
	gl::BindBuffer(gl::ARRAY_BUFFER, vertBuffer);
	gl::BufferData(gl::ARRAY_BUFFER, sizeof(float) * vertices.size(), vertices.data(), gl::STATIC_DRAW);
	gl::BindBuffer(gl::ARRAY_BUFFER, 0);
}

// after creating the shaders
ShaderProgram simpleProgram;
simpleProgram.attachShader(simpleVS);
simpleProgram.bindAttribute(0, "position");

// later in the render loop
simpleProgram.use();

gl::BindBuffer(gl::ARRAY_BUFFER, vertBuffer);
gl::EnableVertexAttribArray(0);
gl::VertexAttribPointer(0, 3, gl::FLOAT, gl::FALSE_, 0, 0);
gl::DrawArrays(gl::TRIANGLES, 0, 3);
gl::DisableVertexAttribArray(0);

simpleProgram.unuse();