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++ // Copyright (C) 2023 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ VARYING vec3 pos;
++ VARYING vec2 coord;
++
++ void MAIN()
++ {
++ pos = VERTEX;
++ pos.x += sin(time * 4.0 + pos.y) * amplitude;
++ coord = UV0;
++ POSITION = MODELVIEWPROJECTION_MATRIX * vec4(pos, 1.0);
++ }