qquick3dprincipledmaterial.cpp

Go to the documentation of this file.

// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
 
#include "qquick3dprincipledmaterial_p.h"
#include "qquick3dobject_p.h"
 
#include <QtQuick3DRuntimeRender/private/qssgrenderdefaultmaterial_p.h>
#include <QtQuick3DUtils/private/qssgutils_p.h>
 
QT_BEGIN_NAMESPACE
 
QQuick3DPrincipledMaterial::QQuick3DPrincipledMaterial(QQuick3DObject *parent)
    : QQuick3DMaterial(*(new QQuick3DObjectPrivate(QQuick3DObjectPrivate::Type::PrincipledMaterial)), parent)
{}
 
QQuick3DPrincipledMaterial::~QQuick3DPrincipledMaterial()
{
}
 
QQuick3DPrincipledMaterial::Lighting QQuick3DPrincipledMaterial::lighting() const
{
    return m_lighting;
}
 
QQuick3DPrincipledMaterial::BlendMode QQuick3DPrincipledMaterial::blendMode() const
{
    return m_blendMode;
}
 
QColor QQuick3DPrincipledMaterial::baseColor() const
{
    return m_baseColor;
}
 
QQuick3DTexture *QQuick3DPrincipledMaterial::baseColorMap() const
{
    return m_baseColorMap;
}
 
bool QQuick3DPrincipledMaterial::baseColorSingleChannelEnabled() const
{
    return m_baseColorSingleChannelEnabled;
}
 
QQuick3DMaterial::TextureChannelMapping QQuick3DPrincipledMaterial::baseColorChannel() const
{
    return m_baseColorChannel;
}
 
bool QQuick3DPrincipledMaterial::specularSingleChannelEnabled() const
{
    return m_specularSingleChannelEnabled;
}
 
QQuick3DMaterial::TextureChannelMapping QQuick3DPrincipledMaterial::specularChannel() const
{
    return m_specularChannel;
}
 
bool QQuick3DPrincipledMaterial::emissiveSingleChannelEnabled() const
{
    return m_emissiveSingleChannelEnabled;
}
 
QQuick3DMaterial::TextureChannelMapping QQuick3DPrincipledMaterial::emissiveChannel() const
{
    return m_emissiveChannel;
}
 
QQuick3DTexture *QQuick3DPrincipledMaterial::emissiveMap() const
{
    return m_emissiveMap;
}
 
QVector3D QQuick3DPrincipledMaterial::emissiveFactor() const
{
    return m_emissiveFactor;
}
 
QQuick3DTexture *QQuick3DPrincipledMaterial::specularReflectionMap() const
{
    return m_specularReflectionMap;
}
 
QQuick3DTexture *QQuick3DPrincipledMaterial::specularMap() const
{
    return m_specularMap;
}
 
float QQuick3DPrincipledMaterial::specularTint() const
{
    return m_specularTint;
}
 
float QQuick3DPrincipledMaterial::specularAmount() const
{
    return m_specularAmount;
}
 
float QQuick3DPrincipledMaterial::roughness() const
{
    return m_roughness;
}
 
QQuick3DTexture *QQuick3DPrincipledMaterial::roughnessMap() const
{
    return m_roughnessMap;
}
 
bool QQuick3DPrincipledMaterial::invertOpacityMapValue() const
{
    return m_invertOpacityMapValue;
}
 
float QQuick3DPrincipledMaterial::opacity() const
{
    return m_opacity;
}
 
QQuick3DTexture *QQuick3DPrincipledMaterial::opacityMap() const
{
    return m_opacityMap;
}
 
QQuick3DTexture *QQuick3DPrincipledMaterial::normalMap() const
{
    return m_normalMap;
}
 
float QQuick3DPrincipledMaterial::metalness() const
{
    return m_metalnessAmount;
}
 
QQuick3DTexture *QQuick3DPrincipledMaterial::metalnessMap() const
{
    return m_metalnessMap;
}
 
float QQuick3DPrincipledMaterial::normalStrength() const
{
    return m_normalStrength;
}
 
QQuick3DTexture *QQuick3DPrincipledMaterial::occlusionMap() const
{
    return m_occlusionMap;
}
 
float QQuick3DPrincipledMaterial::occlusionAmount() const
{
    return m_occlusionAmount;
}
 
QQuick3DPrincipledMaterial::AlphaMode QQuick3DPrincipledMaterial::alphaMode() const
{
    return m_alphaMode;
}
 
float QQuick3DPrincipledMaterial::alphaCutoff() const
{
    return m_alphaCutoff;
}
 
QQuick3DMaterial::TextureChannelMapping QQuick3DPrincipledMaterial::roughnessChannel() const
{
    return m_roughnessChannel;
}
 
QQuick3DMaterial::TextureChannelMapping QQuick3DPrincipledMaterial::opacityChannel() const
{
    return m_opacityChannel;
}
 
QQuick3DMaterial::TextureChannelMapping QQuick3DPrincipledMaterial::metalnessChannel() const
{
    return m_metalnessChannel;
}
 
QQuick3DMaterial::TextureChannelMapping QQuick3DPrincipledMaterial::occlusionChannel() const
{
    return m_occlusionChannel;
}
 
float QQuick3DPrincipledMaterial::pointSize() const
{
    return m_pointSize;
}
 
float QQuick3DPrincipledMaterial::lineWidth() const
{
    return m_lineWidth;
}
 
QQuick3DTexture *QQuick3DPrincipledMaterial::heightMap() const
{
    return m_heightMap;
}
 
QQuick3DMaterial::TextureChannelMapping QQuick3DPrincipledMaterial::heightChannel() const
{
    return m_heightChannel;
}
 
float QQuick3DPrincipledMaterial::heightAmount() const
{
    return m_heightAmount;
}
 
int QQuick3DPrincipledMaterial::minHeightMapSamples() const
{
    return m_minHeightMapSamples;
}
 
int QQuick3DPrincipledMaterial::maxHeightMapSamples() const
{
    return m_maxHeightMapSamples;
}
 
void QQuick3DPrincipledMaterial::markAllDirty()
{
    m_dirtyAttributes = 0xffffffff;
    QQuick3DMaterial::markAllDirty();
}
 
void QQuick3DPrincipledMaterial::setLighting(QQuick3DPrincipledMaterial::Lighting lighting)
{
    if (m_lighting == lighting)
        return;
 
    m_lighting = lighting;
    emit lightingChanged(m_lighting);
    markDirty(LightingModeDirty);
}
 
void QQuick3DPrincipledMaterial::setBlendMode(QQuick3DPrincipledMaterial::BlendMode blendMode)
{
    if (m_blendMode == blendMode)
        return;
 
    m_blendMode = blendMode;
    emit blendModeChanged(m_blendMode);
    markDirty(BlendModeDirty);
}
 
void QQuick3DPrincipledMaterial::setBaseColor(QColor diffuseColor)
{
    if (m_baseColor == diffuseColor)
        return;
 
    m_baseColor = diffuseColor;
    emit baseColorChanged(m_baseColor);
    markDirty(BaseColorDirty);
}
 
void QQuick3DPrincipledMaterial::setBaseColorMap(QQuick3DTexture *baseColorMap)
{
    if (m_baseColorMap == baseColorMap)
        return;
 
    QQuick3DObjectPrivate::attachWatcher(this, &QQuick3DPrincipledMaterial::setBaseColorMap, baseColorMap, m_baseColorMap);
 
    m_baseColorMap = baseColorMap;
    emit baseColorMapChanged(m_baseColorMap);
    markDirty(BaseColorDirty);
}
 
void QQuick3DPrincipledMaterial::setBaseColorSingleChannelEnabled(bool baseColorSingleChannelEnabled)
{
    if (m_baseColorSingleChannelEnabled == baseColorSingleChannelEnabled)
        return;
 
    m_baseColorSingleChannelEnabled = baseColorSingleChannelEnabled;
    emit baseColorSingleChannelEnabledChanged(baseColorSingleChannelEnabled);
    markDirty(BaseColorDirty);
}
 
void QQuick3DPrincipledMaterial::setBaseColorChannel(TextureChannelMapping channel)
{
    if (m_baseColorChannel == channel)
        return;
 
    m_baseColorChannel = channel;
    emit baseColorChannelChanged(channel);
    markDirty(BaseColorDirty);
}
 
void QQuick3DPrincipledMaterial::setSpecularSingleChannelEnabled(bool specularSingleChannelEnabled)
{
    if (m_specularSingleChannelEnabled == specularSingleChannelEnabled)
        return;
 
    m_specularSingleChannelEnabled = specularSingleChannelEnabled;
    emit specularSingleChannelEnabledChanged(specularSingleChannelEnabled);
    markDirty(SpecularDirty);
}
 
void QQuick3DPrincipledMaterial::setSpecularChannel(TextureChannelMapping channel)
{
    if (m_specularChannel == channel)
        return;
 
    m_specularChannel = channel;
    emit specularChannelChanged(channel);
    markDirty(SpecularDirty);
}
 
void QQuick3DPrincipledMaterial::setEmissiveSingleChannelEnabled(bool emissiveSingleChannelEnabled)
{
    if (m_emissiveSingleChannelEnabled == emissiveSingleChannelEnabled)
        return;
 
    m_emissiveSingleChannelEnabled = emissiveSingleChannelEnabled;
    emit emissiveSingleChannelEnabledChanged(emissiveSingleChannelEnabled);
    markDirty(EmissiveDirty);
}
 
void QQuick3DPrincipledMaterial::setEmissiveChannel(TextureChannelMapping channel)
{
    if (m_emissiveChannel == channel)
        return;
 
    m_emissiveChannel = channel;
    emit emissiveChannelChanged(channel);
    markDirty(EmissiveDirty);
}
 
void QQuick3DPrincipledMaterial::setEmissiveMap(QQuick3DTexture *emissiveMap)
{
    if (m_emissiveMap == emissiveMap)
        return;
 
    QQuick3DObjectPrivate::attachWatcher(this, &QQuick3DPrincipledMaterial::setEmissiveMap, emissiveMap, m_emissiveMap);
 
    m_emissiveMap = emissiveMap;
    emit emissiveMapChanged(m_emissiveMap);
    markDirty(EmissiveDirty);
}
 
void QQuick3DPrincipledMaterial::setEmissiveFactor(QVector3D emissiveFactor)
{
    if (m_emissiveFactor == emissiveFactor)
        return;
 
    m_emissiveFactor = emissiveFactor;
    emit emissiveFactorChanged(m_emissiveFactor);
    markDirty(EmissiveDirty);
}
 
void QQuick3DPrincipledMaterial::setSpecularReflectionMap(QQuick3DTexture *specularReflectionMap)
{
    if (m_specularReflectionMap == specularReflectionMap)
        return;
 
    QQuick3DObjectPrivate::attachWatcher(this, &QQuick3DPrincipledMaterial::setSpecularReflectionMap, specularReflectionMap, m_specularReflectionMap);
 
    m_specularReflectionMap = specularReflectionMap;
    emit specularReflectionMapChanged(m_specularReflectionMap);
    markDirty(SpecularDirty);
}
 
void QQuick3DPrincipledMaterial::setSpecularMap(QQuick3DTexture *specularMap)
{
    if (m_specularMap == specularMap)
        return;
 
    QQuick3DObjectPrivate::attachWatcher(this, &QQuick3DPrincipledMaterial::setSpecularMap, specularMap, m_specularMap);
 
    m_specularMap = specularMap;
    emit specularMapChanged(m_specularMap);
    markDirty(SpecularDirty);
}
 
void QQuick3DPrincipledMaterial::setSpecularTint(float specularTint)
{
    specularTint = ensureNormalized(specularTint);
    if (qFuzzyCompare(m_specularTint, specularTint))
        return;
 
    m_specularTint = specularTint;
    emit specularTintChanged(m_specularTint);
    markDirty(SpecularDirty);
}
 
void QQuick3DPrincipledMaterial::setSpecularAmount(float specularAmount)
{
    specularAmount = ensureNormalized(specularAmount);
    if (qFuzzyCompare(m_specularAmount, specularAmount))
        return;
 
    m_specularAmount = specularAmount;
    emit specularAmountChanged(m_specularAmount);
    markDirty(SpecularDirty);
}
 
void QQuick3DPrincipledMaterial::setRoughness(float roughness)
{
    roughness = ensureNormalized(roughness);
    if (qFuzzyCompare(m_roughness, roughness))
        return;
 
    m_roughness = roughness;
    emit roughnessChanged(m_roughness);
    markDirty(RoughnessDirty);
}
 
void QQuick3DPrincipledMaterial::setRoughnessMap(QQuick3DTexture *roughnessMap)
{
    if (m_roughnessMap == roughnessMap)
        return;
 
    QQuick3DObjectPrivate::attachWatcher(this, &QQuick3DPrincipledMaterial::setRoughnessMap, roughnessMap, m_roughnessMap);
 
    m_roughnessMap = roughnessMap;
    emit roughnessMapChanged(m_roughnessMap);
    markDirty(RoughnessDirty);
}
 
void QQuick3DPrincipledMaterial::setInvertOpacityMapValue(bool invertOpacityMapValue)
{
    if (invertOpacityMapValue == m_invertOpacityMapValue)
        return;
 
    m_invertOpacityMapValue = invertOpacityMapValue;
    emit invertOpacityMapValueChanged(m_invertOpacityMapValue);
    markDirty(OpacityDirty);
}
 
void QQuick3DPrincipledMaterial::setOpacity(float opacity)
{
    opacity = ensureNormalized(opacity);
    if (qFuzzyCompare(m_opacity, opacity))
        return;
 
    m_opacity = opacity;
    emit opacityChanged(m_opacity);
    markDirty(OpacityDirty);
}
 
void QQuick3DPrincipledMaterial::setOpacityMap(QQuick3DTexture *opacityMap)
{
    if (m_opacityMap == opacityMap)
        return;
 
    QQuick3DObjectPrivate::attachWatcher(this, &::QQuick3DPrincipledMaterial::setOpacityMap, opacityMap, m_opacityMap);
 
    m_opacityMap = opacityMap;
    emit opacityMapChanged(m_opacityMap);
    markDirty(OpacityDirty);
}
 
void QQuick3DPrincipledMaterial::setNormalMap(QQuick3DTexture *normalMap)
{
    if (m_normalMap == normalMap)
        return;
 
    QQuick3DObjectPrivate::attachWatcher(this, &QQuick3DPrincipledMaterial::setNormalMap, normalMap, m_normalMap);
 
    m_normalMap = normalMap;
    emit normalMapChanged(m_normalMap);
    markDirty(NormalDirty);
}
 
void QQuick3DPrincipledMaterial::setMetalness(float metalnessAmount)
{
    metalnessAmount = ensureNormalized(metalnessAmount);
    if (qFuzzyCompare(m_metalnessAmount, metalnessAmount))
        return;
 
    m_metalnessAmount = metalnessAmount;
    emit metalnessChanged(m_metalnessAmount);
    markDirty(MetalnessDirty);
}
 
void QQuick3DPrincipledMaterial::setMetalnessMap(QQuick3DTexture *metallicMap)
{
    if (m_metalnessMap == metallicMap)
        return;
 
    QQuick3DObjectPrivate::attachWatcher(this, &QQuick3DPrincipledMaterial::setMetalnessMap, metallicMap, m_metalnessMap);
 
    m_metalnessMap = metallicMap;
    emit metalnessMapChanged(m_metalnessMap);
    markDirty(MetalnessDirty);
}
 
void QQuick3DPrincipledMaterial::setNormalStrength(float factor)
{
    factor = ensureNormalized(factor);
    if (qFuzzyCompare(m_normalStrength, factor))
        return;
 
    m_normalStrength = factor;
    emit normalStrengthChanged(m_normalStrength);
    markDirty(NormalDirty);
}
 
void QQuick3DPrincipledMaterial::setOcclusionMap(QQuick3DTexture *occlusionMap)
{
    if (m_occlusionMap == occlusionMap)
        return;
 
    QQuick3DObjectPrivate::attachWatcher(this, &QQuick3DPrincipledMaterial::setOcclusionMap, occlusionMap, m_occlusionMap);
 
    m_occlusionMap = occlusionMap;
    emit occlusionMapChanged(m_occlusionMap);
    markDirty(OcclusionDirty);
}
 
void QQuick3DPrincipledMaterial::setOcclusionAmount(float occlusionAmount)
{
    if (qFuzzyCompare(m_occlusionAmount, occlusionAmount))
        return;
 
    m_occlusionAmount = occlusionAmount;
    emit occlusionAmountChanged(m_occlusionAmount);
    markDirty(OcclusionDirty);
}
 
void QQuick3DPrincipledMaterial::setAlphaMode(QQuick3DPrincipledMaterial::AlphaMode alphaMode)
{
    if (m_alphaMode == alphaMode)
        return;
 
    m_alphaMode = alphaMode;
    emit alphaModeChanged(m_alphaMode);
    markDirty(AlphaModeDirty);
}
 
void QQuick3DPrincipledMaterial::setAlphaCutoff(float alphaCutoff)
{
    if (qFuzzyCompare(m_alphaCutoff, alphaCutoff))
        return;
 
    m_alphaCutoff = alphaCutoff;
    emit alphaCutoffChanged(m_alphaCutoff);
    markDirty(AlphaModeDirty);
}
 
void QQuick3DPrincipledMaterial::setMetalnessChannel(TextureChannelMapping channel)
{
    if (m_metalnessChannel == channel)
        return;
 
    m_metalnessChannel = channel;
    emit metalnessChannelChanged(channel);
    markDirty(MetalnessDirty);
}
 
void QQuick3DPrincipledMaterial::setRoughnessChannel(TextureChannelMapping channel)
{
    if (m_roughnessChannel == channel)
        return;
 
    m_roughnessChannel = channel;
    emit roughnessChannelChanged(channel);
    markDirty(RoughnessDirty);
}
 
void QQuick3DPrincipledMaterial::setOpacityChannel(TextureChannelMapping channel)
{
    if (m_opacityChannel == channel)
        return;
 
    m_opacityChannel = channel;
    emit opacityChannelChanged(channel);
    markDirty(OpacityDirty);
}
 
void QQuick3DPrincipledMaterial::setOcclusionChannel(TextureChannelMapping channel)
{
    if (m_occlusionChannel == channel)
        return;
 
    m_occlusionChannel = channel;
    emit occlusionChannelChanged(channel);
    markDirty(OcclusionDirty);
}
 
void QQuick3DPrincipledMaterial::setPointSize(float size)
{
    if (qFuzzyCompare(m_pointSize, size))
        return;
    m_pointSize = size;
    emit pointSizeChanged();
    markDirty(PointSizeDirty);
}
 
void QQuick3DPrincipledMaterial::setLineWidth(float width)
{
    if (qFuzzyCompare(m_lineWidth, width))
        return;
    m_lineWidth = width;
    emit lineWidthChanged();
    markDirty(LineWidthDirty);
}
 
void QQuick3DPrincipledMaterial::setHeightMap(QQuick3DTexture *heightMap)
{
    if (m_heightMap == heightMap)
        return;
 
    QQuick3DObjectPrivate::attachWatcher(this, &QQuick3DPrincipledMaterial::setHeightMap, heightMap, m_heightMap);
 
    m_heightMap = heightMap;
    emit heightMapChanged(m_heightMap);
    markDirty(HeightDirty);
}
 
void QQuick3DPrincipledMaterial::setHeightChannel(QQuick3DMaterial::TextureChannelMapping channel)
{
    if (m_heightChannel == channel)
        return;
 
    m_heightChannel = channel;
    emit heightChannelChanged(m_heightChannel);
    markDirty(HeightDirty);
}
 
void QQuick3DPrincipledMaterial::setHeightAmount(float heightAmount)
{
    if (m_heightAmount == heightAmount)
        return;
 
    m_heightAmount = heightAmount;
    emit heightAmountChanged(m_heightAmount);
    markDirty(HeightDirty);
}
 
void QQuick3DPrincipledMaterial::setMinHeightMapSamples(int samples)
{
    if (m_minHeightMapSamples == samples)
        return;
 
    m_minHeightMapSamples = samples;
    emit minHeightMapSamplesChanged(samples);
    markDirty(HeightDirty);
}
 
void QQuick3DPrincipledMaterial::setMaxHeightMapSamples(int samples)
{
    if (m_maxHeightMapSamples == samples)
        return;
 
    m_maxHeightMapSamples = samples;
    emit maxHeightMapSamplesChanged(samples);
    markDirty(HeightDirty);
}
 
QSSGRenderGraphObject *QQuick3DPrincipledMaterial::updateSpatialNode(QSSGRenderGraphObject *node)
{
    static const auto channelMapping = [](TextureChannelMapping mapping) {
        return QSSGRenderDefaultMaterial::TextureChannelMapping(mapping);
    };
 
    if (!node) {
        markAllDirty();
        node = new QSSGRenderDefaultMaterial(QSSGRenderGraphObject::Type::PrincipledMaterial);
    }
 
    // Set common material properties
    QQuick3DMaterial::updateSpatialNode(node);
 
    QSSGRenderDefaultMaterial *material = static_cast<QSSGRenderDefaultMaterial *>(node);
 
    material->specularModel = QSSGRenderDefaultMaterial::MaterialSpecularModel::KGGX;
 
    if (m_dirtyAttributes & LightingModeDirty)
        material->lighting = QSSGRenderDefaultMaterial::MaterialLighting(m_lighting);
 
    if (m_dirtyAttributes & BlendModeDirty)
        material->blendMode = QSSGRenderDefaultMaterial::MaterialBlendMode(m_blendMode);
 
    if (m_dirtyAttributes & BaseColorDirty) {
        if (!m_baseColorMap)
            material->colorMap = nullptr;
        else
            material->colorMap = m_baseColorMap->getRenderImage();
 
        material->color = QSSGUtils::color::sRGBToLinear(m_baseColor);
        material->baseColorSingleChannelEnabled = m_baseColorSingleChannelEnabled;
        material->baseColorChannel = channelMapping(m_baseColorChannel);
    }
 
    if (m_dirtyAttributes & EmissiveDirty) {
        if (!m_emissiveMap)
            material->emissiveMap = nullptr;
        else
            material->emissiveMap = m_emissiveMap->getRenderImage();
 
        material->emissiveColor = m_emissiveFactor;
        material->emissiveSingleChannelEnabled = m_emissiveSingleChannelEnabled;
        material->emissiveChannel = channelMapping(m_emissiveChannel);
    }
 
    if (m_dirtyAttributes & RoughnessDirty) {
        if (!m_roughnessMap)
            material->roughnessMap = nullptr;
        else
            material->roughnessMap = m_roughnessMap->getRenderImage();
 
        material->specularRoughness = m_roughness;
        material->roughnessChannel = channelMapping(m_roughnessChannel);
    }
 
    if (m_dirtyAttributes & MetalnessDirty) {
        if (!m_metalnessMap)
            material->metalnessMap = nullptr;
        else
            material->metalnessMap = m_metalnessMap->getRenderImage();
 
        material->metalnessAmount = m_metalnessAmount;
        material->metalnessChannel = channelMapping(m_metalnessChannel);
 
    }
 
    if (m_dirtyAttributes & SpecularDirty) {
        if (!m_specularReflectionMap)
            material->specularReflection = nullptr;
        else
            material->specularReflection = m_specularReflectionMap->getRenderImage();
 
        if (!m_specularMap) {
            material->specularMap = nullptr;
        } else {
            material->specularMap = m_specularMap->getRenderImage();
        }
 
        material->specularAmount = m_specularAmount;
        material->specularTint = QVector3D(m_specularTint, m_specularTint, m_specularTint);
        material->ior = m_indexOfRefraction;
        material->fresnelScaleBiasEnabled = m_fresnelScaleBiasEnabled;
        material->fresnelScale = m_fresnelScale;
        material->fresnelBias = m_fresnelBias;
        material->fresnelPower = m_fresnelPower;
        material->specularAmountSingleChannelEnabled = m_specularSingleChannelEnabled;
        material->specularAmountChannel = channelMapping(m_specularChannel);
    }
 
    if (m_dirtyAttributes & OpacityDirty) {
        material->opacity = m_opacity;
        if (!m_opacityMap)
            material->opacityMap = nullptr;
        else
            material->opacityMap = m_opacityMap->getRenderImage();
 
        material->invertOpacityMapValue = m_invertOpacityMapValue;
        material->opacity = m_opacity;
        material->opacityChannel = channelMapping(m_opacityChannel);
    }
 
    if (m_dirtyAttributes & NormalDirty) {
        if (!m_normalMap)
            material->normalMap = nullptr;
        else
            material->normalMap = m_normalMap->getRenderImage();
 
        material->bumpAmount = m_normalStrength;
    }
 
    if (m_dirtyAttributes & OcclusionDirty) {
        if (!m_occlusionMap)
            material->occlusionMap = nullptr;
        else
            material->occlusionMap = m_occlusionMap->getRenderImage();
        material->occlusionAmount = m_occlusionAmount;
        material->occlusionChannel = channelMapping(m_occlusionChannel);
    }
 
    if (m_dirtyAttributes & AlphaModeDirty) {
        material->alphaMode = QSSGRenderDefaultMaterial::MaterialAlphaMode(m_alphaMode);
        material->alphaCutoff = m_alphaCutoff;
    }
 
    if (m_dirtyAttributes & PointSizeDirty)
        material->pointSize = m_pointSize;
 
    if (m_dirtyAttributes & LineWidthDirty)
        material->lineWidth = m_lineWidth;
 
    if (m_dirtyAttributes & HeightDirty) {
        if (!m_heightMap)
            material->heightMap = nullptr;
        else
            material->heightMap = m_heightMap->getRenderImage();
        material->heightAmount = m_heightAmount;
        material->minHeightSamples = m_minHeightMapSamples;
        material->maxHeightSamples = m_maxHeightMapSamples;
        material->heightChannel = channelMapping(m_heightChannel);
    }
 
    if (m_dirtyAttributes & ClearcoatDirty) {
        material->clearcoatAmount = m_clearcoatAmount;
        if (!m_clearcoatMap)
            material->clearcoatMap = nullptr;
        else
            material->clearcoatMap = m_clearcoatMap->getRenderImage();
        material->clearcoatChannel = channelMapping(m_clearcoatChannel);
        material->clearcoatRoughnessAmount = m_clearcoatRoughnessAmount;
        if (!m_clearcoatRoughnessMap)
            material->clearcoatRoughnessMap = nullptr;
        else
            material->clearcoatRoughnessMap = m_clearcoatRoughnessMap->getRenderImage();
        material->clearcoatRoughnessChannel = channelMapping(m_clearcoatRoughnessChannel);
        if (!m_clearcoatNormalMap)
            material->clearcoatNormalMap = nullptr;
        else
            material->clearcoatNormalMap = m_clearcoatNormalMap->getRenderImage();
        material->clearcoatNormalStrength = m_clearcoatNormalStrength;
        material->clearcoatFresnelScaleBiasEnabled = m_clearcoatFresnelScaleBiasEnabled;
        material->clearcoatFresnelScale = m_clearcoatFresnelScale;
        material->clearcoatFresnelBias = m_clearcoatFresnelBias;
        material->clearcoatFresnelPower = m_clearcoatFresnelPower;
    }
 
    if (m_dirtyAttributes & TransmissionDirty) {
        material->transmissionFactor = m_transmissionFactor;
        if (!m_transmissionMap)
            material->transmissionMap = nullptr;
        else
            material->transmissionMap = m_transmissionMap->getRenderImage();
        material->transmissionChannel = channelMapping(m_transmissionChannel);
    }
 
    if (m_dirtyAttributes & VolumeDirty) {
        material->thicknessFactor = m_thicknessFactor;
        if (!m_thicknessMap)
            material->thicknessMap = nullptr;
        else
            material->thicknessMap = m_thicknessMap->getRenderImage();
        material->thicknessChannel = channelMapping(m_thicknessChannel);
 
        material->attenuationDistance = m_attenuationDistance;
        material->attenuationColor = QSSGUtils::color::sRGBToLinear(m_attenuationColor).toVector3D();
    }
 
    if (m_dirtyAttributes & VertexColorsDirty) {
        material->vertexColorsEnabled = m_vertexColorsEnabled;
        material->vertexColorsMaskEnabled = m_vertexColorsMaskEnabled;
        material->vertexColorRedMask = QSSGRenderDefaultMaterial::VertexColorMaskFlags::fromInt(m_vertexColorRedMask);
        material->vertexColorGreenMask = QSSGRenderDefaultMaterial::VertexColorMaskFlags::fromInt(m_vertexColorGreenMask);
        material->vertexColorBlueMask = QSSGRenderDefaultMaterial::VertexColorMaskFlags::fromInt(m_vertexColorBlueMask);
        material->vertexColorAlphaMask = QSSGRenderDefaultMaterial::VertexColorMaskFlags::fromInt(m_vertexColorAlphaMask);
    }
 
    m_dirtyAttributes = 0;
 
    return node;
}
 
void QQuick3DPrincipledMaterial::itemChange(QQuick3DObject::ItemChange change, const QQuick3DObject::ItemChangeData &value)
{
    if (change == QQuick3DObject::ItemSceneChange)
        updateSceneManager(value.sceneManager);
}
 
void QQuick3DPrincipledMaterial::updateSceneManager(QQuick3DSceneManager *sceneManager)
{
    // Check all the resource value's scene manager, and update as necessary.
    if (sceneManager) {
        QQuick3DObjectPrivate::refSceneManager(m_baseColorMap, *sceneManager);
        QQuick3DObjectPrivate::refSceneManager(m_emissiveMap, *sceneManager);
        QQuick3DObjectPrivate::refSceneManager(m_specularReflectionMap, *sceneManager);
        QQuick3DObjectPrivate::refSceneManager(m_specularMap, *sceneManager);
        QQuick3DObjectPrivate::refSceneManager(m_roughnessMap, *sceneManager);
        QQuick3DObjectPrivate::refSceneManager(m_opacityMap, *sceneManager);
        QQuick3DObjectPrivate::refSceneManager(m_normalMap, *sceneManager);
        QQuick3DObjectPrivate::refSceneManager(m_metalnessMap, *sceneManager);
        QQuick3DObjectPrivate::refSceneManager(m_occlusionMap, *sceneManager);
        QQuick3DObjectPrivate::refSceneManager(m_heightMap, *sceneManager);
        QQuick3DObjectPrivate::refSceneManager(m_clearcoatMap, *sceneManager);
        QQuick3DObjectPrivate::refSceneManager(m_clearcoatRoughnessMap, *sceneManager);
        QQuick3DObjectPrivate::refSceneManager(m_clearcoatNormalMap, *sceneManager);
        QQuick3DObjectPrivate::refSceneManager(m_transmissionMap, *sceneManager);
        QQuick3DObjectPrivate::refSceneManager(m_thicknessMap, *sceneManager);
    } else {
        QQuick3DObjectPrivate::derefSceneManager(m_baseColorMap);
        QQuick3DObjectPrivate::derefSceneManager(m_emissiveMap);
        QQuick3DObjectPrivate::derefSceneManager(m_specularReflectionMap);
        QQuick3DObjectPrivate::derefSceneManager(m_specularMap);
        QQuick3DObjectPrivate::derefSceneManager(m_roughnessMap);
        QQuick3DObjectPrivate::derefSceneManager(m_opacityMap);
        QQuick3DObjectPrivate::derefSceneManager(m_normalMap);
        QQuick3DObjectPrivate::derefSceneManager(m_metalnessMap);
        QQuick3DObjectPrivate::derefSceneManager(m_occlusionMap);
        QQuick3DObjectPrivate::derefSceneManager(m_heightMap);
        QQuick3DObjectPrivate::derefSceneManager(m_clearcoatMap);
        QQuick3DObjectPrivate::derefSceneManager(m_clearcoatRoughnessMap);
        QQuick3DObjectPrivate::derefSceneManager(m_clearcoatNormalMap);
        QQuick3DObjectPrivate::derefSceneManager(m_transmissionMap);
        QQuick3DObjectPrivate::derefSceneManager(m_thicknessMap);
    }
}
 
void QQuick3DPrincipledMaterial::markDirty(QQuick3DPrincipledMaterial::DirtyType type)
{
    if (!(m_dirtyAttributes & quint32(type))) {
        m_dirtyAttributes |= quint32(type);
        update();
    }
}
 
float QQuick3DPrincipledMaterial::clearcoatAmount() const
{
    return m_clearcoatAmount;
}
 
void QQuick3DPrincipledMaterial::setClearcoatAmount(float newClearcoatAmount)
{
    if (qFuzzyCompare(m_clearcoatAmount, newClearcoatAmount))
        return;
    m_clearcoatAmount = newClearcoatAmount;
    emit clearcoatAmountChanged(m_clearcoatAmount);
    markDirty(ClearcoatDirty);
}
 
QQuick3DTexture *QQuick3DPrincipledMaterial::clearcoatMap() const
{
    return m_clearcoatMap;
}
 
void QQuick3DPrincipledMaterial::setClearcoatMap(QQuick3DTexture *newClearcoatMap)
{
    if (m_clearcoatMap == newClearcoatMap)
        return;
 
    QQuick3DObjectPrivate::attachWatcher(this, &QQuick3DPrincipledMaterial::setClearcoatMap, newClearcoatMap, m_clearcoatMap);
 
    m_clearcoatMap = newClearcoatMap;
    emit clearcoatMapChanged(m_clearcoatMap);
    markDirty(ClearcoatDirty);
}
 
QQuick3DMaterial::TextureChannelMapping QQuick3DPrincipledMaterial::clearcoatChannel() const
{
    return m_clearcoatChannel;
}
 
void QQuick3DPrincipledMaterial::setClearcoatChannel(QQuick3DMaterial::TextureChannelMapping newClearcoatChannel)
{
    if (m_clearcoatChannel == newClearcoatChannel)
        return;
    m_clearcoatChannel = newClearcoatChannel;
    emit clearcoatChannelChanged(m_clearcoatChannel);
    markDirty(ClearcoatDirty);
}
 
float QQuick3DPrincipledMaterial::clearcoatRoughnessAmount() const
{
    return m_clearcoatRoughnessAmount;
}
 
void QQuick3DPrincipledMaterial::setClearcoatRoughnessAmount(float newClearcoatRoughnessAmount)
{
    if (qFuzzyCompare(m_clearcoatRoughnessAmount, newClearcoatRoughnessAmount))
        return;
    m_clearcoatRoughnessAmount = newClearcoatRoughnessAmount;
    emit clearcoatRoughnessAmountChanged(m_clearcoatRoughnessAmount);
    markDirty(ClearcoatDirty);
}
 
QQuick3DMaterial::TextureChannelMapping QQuick3DPrincipledMaterial::clearcoatRoughnessChannel() const
{
    return m_clearcoatRoughnessChannel;
}
 
void QQuick3DPrincipledMaterial::setClearcoatRoughnessChannel(QQuick3DMaterial::TextureChannelMapping newClearcoatRoughnessChannel)
{
    if (m_clearcoatRoughnessChannel == newClearcoatRoughnessChannel)
        return;
    m_clearcoatRoughnessChannel = newClearcoatRoughnessChannel;
    emit clearcoatRoughnessChannelChanged(m_clearcoatRoughnessChannel);
    markDirty(ClearcoatDirty);
}
 
QQuick3DTexture *QQuick3DPrincipledMaterial::clearcoatRoughnessMap() const
{
    return m_clearcoatRoughnessMap;
}
 
void QQuick3DPrincipledMaterial::setClearcoatRoughnessMap(QQuick3DTexture *newClearcoatRoughnessMap)
{
    if (m_clearcoatRoughnessMap == newClearcoatRoughnessMap)
        return;
 
    QQuick3DObjectPrivate::attachWatcher(this, &QQuick3DPrincipledMaterial::setClearcoatRoughnessMap, newClearcoatRoughnessMap, m_clearcoatRoughnessMap);
 
    m_clearcoatRoughnessMap = newClearcoatRoughnessMap;
    emit clearcoatRoughnessMapChanged(m_clearcoatRoughnessMap);
    markDirty(ClearcoatDirty);
}
 
QQuick3DTexture *QQuick3DPrincipledMaterial::clearcoatNormalMap() const
{
    return m_clearcoatNormalMap;
}
 
void QQuick3DPrincipledMaterial::setClearcoatNormalMap(QQuick3DTexture *newClearcoatNormalMap)
{
    if (m_clearcoatNormalMap == newClearcoatNormalMap)
        return;
 
    QQuick3DObjectPrivate::attachWatcher(this, &QQuick3DPrincipledMaterial::setClearcoatNormalMap, newClearcoatNormalMap, m_clearcoatNormalMap);
 
    m_clearcoatNormalMap = newClearcoatNormalMap;
    emit clearcoatNormalMapChanged(m_clearcoatNormalMap);
    markDirty(ClearcoatDirty);
}
 
 
float QQuick3DPrincipledMaterial::clearcoatNormalStrength() const
{
    return m_clearcoatNormalStrength;
}
 
void QQuick3DPrincipledMaterial::setClearcoatNormalStrength(float newClearcoatNormalStrength)
{
    if (qFuzzyCompare(m_clearcoatNormalStrength, newClearcoatNormalStrength))
        return;
 
    m_clearcoatNormalStrength = newClearcoatNormalStrength;
    emit clearcoatNormalStrengthChanged(m_clearcoatNormalStrength);
    markDirty(ClearcoatDirty);
}
 
float QQuick3DPrincipledMaterial::transmissionFactor() const
{
    return m_transmissionFactor;
}
 
void QQuick3DPrincipledMaterial::setTransmissionFactor(float newTransmissionFactor)
{
    if (qFuzzyCompare(m_transmissionFactor, newTransmissionFactor))
        return;
    m_transmissionFactor = newTransmissionFactor;
    emit transmissionFactorChanged(m_transmissionFactor);
    markDirty(TransmissionDirty);
}
 
QQuick3DTexture *QQuick3DPrincipledMaterial::transmissionMap() const
{
    return m_transmissionMap;
}
 
void QQuick3DPrincipledMaterial::setTransmissionMap(QQuick3DTexture *newTransmissionMap)
{
    if (m_transmissionMap == newTransmissionMap)
        return;
 
    QQuick3DObjectPrivate::attachWatcher(this, &QQuick3DPrincipledMaterial::setTransmissionMap, newTransmissionMap, m_transmissionMap);
 
    m_transmissionMap = newTransmissionMap;
    emit transmissionMapChanged(m_transmissionMap);
    markDirty(TransmissionDirty);
}
 
QQuick3DMaterial::TextureChannelMapping QQuick3DPrincipledMaterial::transmissionChannel() const
{
    return m_transmissionChannel;
}
 
float QQuick3DPrincipledMaterial::indexOfRefraction() const
{
    return m_indexOfRefraction;
}
 
bool QQuick3DPrincipledMaterial::fresnelScaleBiasEnabled() const
{
    return m_fresnelScaleBiasEnabled;
}
 
float QQuick3DPrincipledMaterial::fresnelScale() const
{
    return m_fresnelScale;
}
 
float QQuick3DPrincipledMaterial::fresnelBias() const
{
    return m_fresnelBias;
}
 
float QQuick3DPrincipledMaterial::fresnelPower() const
{
    return m_fresnelPower;
}
 
bool QQuick3DPrincipledMaterial::clearcoatFresnelScaleBiasEnabled() const
{
    return m_clearcoatFresnelScaleBiasEnabled;
}
 
float QQuick3DPrincipledMaterial::clearcoatFresnelScale() const
{
    return m_clearcoatFresnelScale;
}
 
float QQuick3DPrincipledMaterial::clearcoatFresnelBias() const
{
    return m_clearcoatFresnelBias;
}
 
float QQuick3DPrincipledMaterial::clearcoatFresnelPower() const
{
    return m_clearcoatFresnelPower;
}
 
bool QQuick3DPrincipledMaterial::vertexColorsEnabled() const
{
    return m_vertexColorsEnabled;
}
 
void QQuick3DPrincipledMaterial::setTransmissionChannel(QQuick3DMaterial::TextureChannelMapping newTransmissionChannel)
{
    if (m_transmissionChannel == newTransmissionChannel)
        return;
    m_transmissionChannel = newTransmissionChannel;
    emit transmissionChannelChanged(m_transmissionChannel);
    markDirty(TransmissionDirty);
}
 
float QQuick3DPrincipledMaterial::thicknessFactor() const
{
    return m_thicknessFactor;
}
 
void QQuick3DPrincipledMaterial::setThicknessFactor(float newThicknessFactor)
{
    if (qFuzzyCompare(m_thicknessFactor, newThicknessFactor))
        return;
    m_thicknessFactor = newThicknessFactor;
    emit thicknessFactorChanged(m_thicknessFactor);
    markDirty(VolumeDirty);
}
 
QQuick3DTexture *QQuick3DPrincipledMaterial::thicknessMap() const
{
    return m_thicknessMap;
}
 
void QQuick3DPrincipledMaterial::setThicknessMap(QQuick3DTexture *newThicknessMap)
{
    if (m_thicknessMap == newThicknessMap)
        return;
 
    QQuick3DObjectPrivate::attachWatcher(this, &QQuick3DPrincipledMaterial::setThicknessMap, newThicknessMap, m_thicknessMap);
 
    m_thicknessMap = newThicknessMap;
    emit thicknessMapChanged(m_thicknessMap);
    markDirty(VolumeDirty);
}
 
const QQuick3DMaterial::TextureChannelMapping &QQuick3DPrincipledMaterial::thicknessChannel() const
{
    return m_thicknessChannel;
}
 
void QQuick3DPrincipledMaterial::setThicknessChannel(const QQuick3DMaterial::TextureChannelMapping &newThicknessChannel)
{
    if (m_thicknessChannel == newThicknessChannel)
        return;
    m_thicknessChannel = newThicknessChannel;
    emit thicknessChannelChanged(m_thicknessChannel);
    markDirty(VolumeDirty);
}
 
float QQuick3DPrincipledMaterial::attenuationDistance() const
{
    return m_attenuationDistance;
}
 
void QQuick3DPrincipledMaterial::setAttenuationDistance(float newAttenuationDistance)
{
    if (qFuzzyCompare(m_attenuationDistance, newAttenuationDistance))
        return;
    m_attenuationDistance = newAttenuationDistance;
    emit attenuationDistanceChanged(m_attenuationDistance);
    markDirty(VolumeDirty);
}
 
const QColor &QQuick3DPrincipledMaterial::attenuationColor() const
{
    return m_attenuationColor;
}
 
void QQuick3DPrincipledMaterial::setAttenuationColor(const QColor &newAttenuationColor)
{
    if (m_attenuationColor == newAttenuationColor)
        return;
    m_attenuationColor = newAttenuationColor;
    emit attenuationColorChanged(m_attenuationColor);
    markDirty(VolumeDirty);
}
 
void QQuick3DPrincipledMaterial::setIndexOfRefraction(float indexOfRefraction)
{
    if (qFuzzyCompare(m_indexOfRefraction, indexOfRefraction))
        return;
 
    m_indexOfRefraction = indexOfRefraction;
    emit indexOfRefractionChanged(m_indexOfRefraction);
    markDirty(SpecularDirty);
}
 
void QQuick3DPrincipledMaterial::setFresnelScaleBiasEnabled(bool fresnelScaleBiasEnabled)
{
    if (m_fresnelScaleBiasEnabled == fresnelScaleBiasEnabled)
        return;
 
    m_fresnelScaleBiasEnabled = fresnelScaleBiasEnabled;
    emit fresnelScaleBiasEnabledChanged(m_fresnelScaleBiasEnabled);
    markDirty(SpecularDirty);
}
 
void QQuick3DPrincipledMaterial::setFresnelScale(float fresnelScale)
{
    if (qFuzzyCompare(m_fresnelScale, fresnelScale))
        return;
 
    m_fresnelScale = fresnelScale;
    emit fresnelScaleChanged(m_fresnelScale);
    markDirty(SpecularDirty);
}
 
void QQuick3DPrincipledMaterial::setFresnelBias(float fresnelBias)
{
    if (qFuzzyCompare(m_fresnelBias, fresnelBias))
        return;
 
    m_fresnelBias = fresnelBias;
    emit fresnelBiasChanged(m_fresnelBias);
    markDirty(SpecularDirty);
}
 
void QQuick3DPrincipledMaterial::setFresnelPower(float fresnelPower)
{
    if (qFuzzyCompare(m_fresnelPower, fresnelPower))
        return;
 
    m_fresnelPower = fresnelPower;
    emit fresnelPowerChanged(m_fresnelPower);
    markDirty(SpecularDirty);
}
 
void QQuick3DPrincipledMaterial::setClearcoatFresnelScaleBiasEnabled(bool clearcoatFresnelScaleBiasEnabled)
{
    if (m_clearcoatFresnelScaleBiasEnabled == clearcoatFresnelScaleBiasEnabled)
        return;
 
    m_clearcoatFresnelScaleBiasEnabled = clearcoatFresnelScaleBiasEnabled;
    emit clearcoatFresnelScaleBiasEnabledChanged(m_clearcoatFresnelScaleBiasEnabled);
    markDirty(ClearcoatDirty);
}
 
void QQuick3DPrincipledMaterial::setClearcoatFresnelScale(float clearcoatFresnelScale)
{
    if (qFuzzyCompare(m_clearcoatFresnelScale, clearcoatFresnelScale))
        return;
 
    m_clearcoatFresnelScale = clearcoatFresnelScale;
    emit clearcoatFresnelScaleChanged(m_clearcoatFresnelScale);
    markDirty(ClearcoatDirty);
}
 
void QQuick3DPrincipledMaterial::setClearcoatFresnelBias(float clearcoatFresnelBias)
{
    if (qFuzzyCompare(m_clearcoatFresnelBias, clearcoatFresnelBias))
        return;
 
    m_clearcoatFresnelBias = clearcoatFresnelBias;
    emit clearcoatFresnelBiasChanged(m_clearcoatFresnelBias);
    markDirty(ClearcoatDirty);
}
 
void QQuick3DPrincipledMaterial::setClearcoatFresnelPower(float clearcoatFresnelPower)
{
    if (qFuzzyCompare(m_clearcoatFresnelPower, clearcoatFresnelPower))
        return;
 
    m_clearcoatFresnelPower = clearcoatFresnelPower;
    emit clearcoatFresnelPowerChanged(m_clearcoatFresnelPower);
    markDirty(ClearcoatDirty);
}
 
void QQuick3DPrincipledMaterial::setVertexColorsEnabled(bool vertexColors)
{
    if (m_vertexColorsEnabled == vertexColors)
        return;
 
    m_vertexColorsEnabled = vertexColors;
    emit vertexColorsEnabledChanged(m_vertexColorsEnabled);
    markDirty(VertexColorsDirty);
}
 
bool QQuick3DPrincipledMaterial::vertexColorsMaskEnabled() const
{
    return m_vertexColorsMaskEnabled;
}
 
void QQuick3DPrincipledMaterial::setVertexColorsMaskEnabled(bool vertexColorsMaskEnabled)
{
    if (m_vertexColorsMaskEnabled == vertexColorsMaskEnabled)
        return;
    m_vertexColorsMaskEnabled = vertexColorsMaskEnabled;
    emit vertexColorsMaskEnabledChanged();
    markDirty(VertexColorsDirty);
}
 
QQuick3DPrincipledMaterial::VertexColorMaskFlags QQuick3DPrincipledMaterial::vertexColorRedMask() const
{
    return m_vertexColorRedMask;
}
 
void QQuick3DPrincipledMaterial::setVertexColorRedMask(QQuick3DPrincipledMaterial::VertexColorMaskFlags vertexColorRedMask)
{
    if (m_vertexColorRedMask == vertexColorRedMask)
        return;
    m_vertexColorRedMask = vertexColorRedMask;
    emit vertexColorRedMaskChanged();
    markDirty(VertexColorsDirty);
}
 
QQuick3DPrincipledMaterial::VertexColorMaskFlags QQuick3DPrincipledMaterial::vertexColorGreenMask() const
{
    return m_vertexColorGreenMask;
}
 
void QQuick3DPrincipledMaterial::setVertexColorGreenMask(QQuick3DPrincipledMaterial::VertexColorMaskFlags vertexColorGreenMask)
{
    if (m_vertexColorGreenMask == vertexColorGreenMask)
        return;
    m_vertexColorGreenMask = vertexColorGreenMask;
    emit vertexColorGreenMaskChanged();
    markDirty(VertexColorsDirty);
}
 
QQuick3DPrincipledMaterial::VertexColorMaskFlags QQuick3DPrincipledMaterial::vertexColorBlueMask() const
{
    return m_vertexColorBlueMask;
}
 
void QQuick3DPrincipledMaterial::setVertexColorBlueMask(QQuick3DPrincipledMaterial::VertexColorMaskFlags vertexColorBlueMask)
{
    if (m_vertexColorBlueMask == vertexColorBlueMask)
        return;
    m_vertexColorBlueMask = vertexColorBlueMask;
    emit vertexColorBlueMaskChanged();
    markDirty(VertexColorsDirty);
}
 
QQuick3DPrincipledMaterial::VertexColorMaskFlags QQuick3DPrincipledMaterial::vertexColorAlphaMask() const
{
    return m_vertexColorAlphaMask;
}
 
void QQuick3DPrincipledMaterial::setVertexColorAlphaMask(QQuick3DPrincipledMaterial::VertexColorMaskFlags vertexColorAlphaMask)
{
    if (m_vertexColorAlphaMask == vertexColorAlphaMask)
        return;
    m_vertexColorAlphaMask = vertexColorAlphaMask;
    emit vertexColorAlphaMaskChanged();
    markDirty(VertexColorsDirty);
}
 
QT_END_NAMESPACE