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// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
vec4 qt_diffuseLambertBRDF(in vec3 N, in vec3 L, in vec3 lightDiffuse)
{
// Assuming that N and L are normalized
float cNdotL = max(0.0, dot(N, L));
return vec4(cNdotL * lightDiffuse, 1.0);
}