/* 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. */ attribute vec4 gtf_Vertex; uniform mat4 gtf_ModelViewProjectionMatrix; varying vec4 color; struct sabcd { mat2 a; }; void main (void) { sabcd s = sabcd(mat2(12.0, 29.0, 13.0, 26.0) ); color = vec4( vec3( (s.a[0][0] + s.a[0][1] + s.a[1][0] + s.a[1][1]) / 80.0 ), 1.0); gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex; }