Scene Kit Session WWDC 2014/Resources/Shaders/NodeDelegate.vsh

attribute vec4 a_position;
attribute vec2 a_angleAndLife;
 
uniform mat4 u_mvp;
 
varying vec2 v_angleAndLife;
 
void main() {
    gl_Position = u_mvp * a_position;
    v_angleAndLife = a_angleAndLife;
}