#version 330 core layout(location = 0) in vec3 a_position; layout(location = 1) in vec4 a_color; out vec4 v_color; void main() { gl_Position = vec4(a_position, 1.0f); //gl_Position = vec4(a_position.x, -a_position.y, a_position.z, 1.0f); v_color = a_color; }