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++ // Copyright (C) 2023 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include "texturesample.glsllib"
++
++ void MAIN() {
++ //glow uses larger sigma for a more rounded blur effect
++ vec2 pixelSize = vec2(1.0 / INPUT_SIZE.x, 1.0 / INPUT_SIZE.y);
++ vec4 color = SAMPLE_LOD(INPUT, INPUT_UV + vec2(0.0, 0.0) * pixelSize, 0.0) * 0.288713;
++ color += SAMPLE_LOD(INPUT, INPUT_UV + vec2(0.0, 1.0) * pixelSize, 0.0) * 0.233062;
++ color += SAMPLE_LOD(INPUT, INPUT_UV + vec2(0.0, 2.0) * pixelSize, 0.0) * 0.122581;
++ color += SAMPLE_LOD(INPUT, INPUT_UV + vec2(0.0, -1.0) * pixelSize, 0.0) * 0.233062;
++ color += SAMPLE_LOD(INPUT, INPUT_UV + vec2(0.0, -2.0) * pixelSize, 0.0) * 0.122581;
++ color *= glowStrength;
++
++ FRAGCOLOR = color;
++ }