/* 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 varying vec4 color; struct sabcd { mat3 a; }; void main (void) { sabcd s = sabcd(mat3(12.0, 29.0, 13.0, 26.0, 71.0, 63.0, 90.0, 118.0, 128.0) ); float sum=0.0; int i,j; sum = sum + s.a[0][0]; sum = sum + s.a[0][1]; sum = sum + s.a[0][2]; sum = sum + s.a[1][0]; sum = sum + s.a[1][1]; sum = sum + s.a[1][2]; sum = sum + s.a[2][0]; sum = sum + s.a[2][1]; sum = sum + s.a[2][2]; gl_FragColor = vec4( vec3( sum / 550.0 ), 1.0); }