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++ // Copyright (C) 2026 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ // Augment shader for the AddDefine baseline test.
++ // MY_DEFINE is injected as #define MY_DEFINE 1 when AddDefine is active.
++
++ void MAIN_FRAGMENT_AUGMENT()
++ {
++ #ifdef MY_DEFINE
++ fragOutput = vec4(0.0, 1.0, 0.0, 1.0); // green: MY_DEFINE was injected
++ #else
++ fragOutput = vec4(1.0, 0.0, 0.0, 1.0); // red: MY_DEFINE was NOT injected
++ #endif
++ }