/*
Copyright (c) 2019 The Khronos Group Inc.
Use of this source code is governed by an MIT-style license that can be
found in the LICENSE.txt file.
*/


#ifdef GL_ES
precision mediump float;
#endif
void main()
{
    vec4 v = vec4(5,6,7,8);
    // value changes for lhs
    // 8765, 6758, 857, 75 i.e. replace v.zx
    // value changes for rhs
    // 8765, 6758, 86 i.e replace with v.wy
    // replace v.z with v.w
    // replace v.x with v.y
    // add 1.000000 to v.w and v.y
    v.wzyx.zywx.wzy.zy = (v.wzyx.zywx.wx)++;
    gl_FragColor = vec4(v);  // 6,7,8,9
}