/*
 Copyright (C) 2010 Kristian Duske
 
 This file is part of TrenchBroom.
 
 TrenchBroom is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
 
 TrenchBroom is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with TrenchBroom. If not, see <http://www.gnu.org/licenses/>.
 */

uniform bool ShowSoftMapBounds;
uniform vec3 SoftMapBoundsMin;
uniform vec3 SoftMapBoundsMax;
uniform vec4 SoftMapBoundsColor;

vec3 applySoftMapBoundsTint(vec3 inputFragColor, vec3 worldCoords) {
    if (ShowSoftMapBounds) {
        bool outside = any(greaterThan(worldCoords, SoftMapBoundsMax)) || any(lessThan(worldCoords, SoftMapBoundsMin));

        if (outside) {
            return mix(gl_FragColor.rgb, SoftMapBoundsColor.rgb, SoftMapBoundsColor.a);
        }
    }
    return inputFragColor;
}