/* 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() { const vec4 v = vec4(normalize(vec4(1))); // Builtin functions are constant expressions if all their parameters are constant expressions - code ok const vec4 v1 = vec4(clamp(1.0, .20, 3.0)); // Builtin functions are constant expressions if all their parameters are constant expressions - code ok float f = 1.0; const vec4 v2 = vec4(float(vec4(1,2,3,f))); // f is not constant - code fails and test does not compile (expected) gl_FragColor = v + v1 + v2; }