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| ** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB). |
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| |
| #include "qphongalphamaterial.h" |
| #include "qphongalphamaterial_p.h" |
| |
| #include <Qt3DRender/qfilterkey.h> |
| #include <Qt3DRender/qmaterial.h> |
| #include <Qt3DRender/qeffect.h> |
| #include <Qt3DRender/qtechnique.h> |
| #include <Qt3DRender/qshaderprogram.h> |
| #include <Qt3DRender/qshaderprogrambuilder.h> |
| #include <Qt3DRender/qparameter.h> |
| #include <Qt3DRender/qrenderpass.h> |
| #include <Qt3DRender/qgraphicsapifilter.h> |
| #include <Qt3DRender/qblendequation.h> |
| #include <Qt3DRender/qblendequationarguments.h> |
| #include <Qt3DRender/qnodepthmask.h> |
| #include <QtCore/QUrl> |
| #include <QtGui/QVector3D> |
| #include <QtGui/QVector4D> |
| |
| QT_BEGIN_NAMESPACE |
| |
| using namespace Qt3DRender; |
| |
| namespace Qt3DExtras { |
| |
| QPhongAlphaMaterialPrivate::QPhongAlphaMaterialPrivate() |
| : QMaterialPrivate() |
| , m_phongEffect(new QEffect()) |
| , m_ambientParameter(new QParameter(QStringLiteral("ka"), QColor::fromRgbF(0.05f, 0.05f, 0.05f, 1.0f))) |
| , m_diffuseParameter(new QParameter(QStringLiteral("kd"), QColor::fromRgbF(0.7f, 0.7f, 0.7f, 0.5f))) |
| , m_specularParameter(new QParameter(QStringLiteral("ks"), QColor::fromRgbF(0.01f, 0.01f, 0.01f, 1.0f))) |
| , m_shininessParameter(new QParameter(QStringLiteral("shininess"), 150.0f)) |
| , m_phongAlphaGL3Technique(new QTechnique()) |
| , m_phongAlphaGL2Technique(new QTechnique()) |
| , m_phongAlphaES2Technique(new QTechnique()) |
| , m_phongAlphaRHITechnique(new QTechnique()) |
| , m_phongAlphaGL3RenderPass(new QRenderPass()) |
| , m_phongAlphaGL2RenderPass(new QRenderPass()) |
| , m_phongAlphaES2RenderPass(new QRenderPass()) |
| , m_phongAlphaRHIRenderPass(new QRenderPass()) |
| , m_phongAlphaGL3Shader(new QShaderProgram()) |
| , m_phongAlphaGL3ShaderBuilder(new QShaderProgramBuilder()) |
| , m_phongAlphaGL2ES2Shader(new QShaderProgram()) |
| , m_phongAlphaGL2ES2ShaderBuilder(new QShaderProgramBuilder()) |
| , m_phongAlphaRHIShader(new QShaderProgram()) |
| , m_phongAlphaRHIShaderBuilder(new QShaderProgramBuilder()) |
| , m_noDepthMask(new QNoDepthMask()) |
| , m_blendState(new QBlendEquationArguments()) |
| , m_blendEquation(new QBlendEquation()) |
| , m_filterKey(new QFilterKey) |
| { |
| } |
| |
| // TODO: Define how lights are properties are set in the shaders. Ideally using a QShaderData |
| void QPhongAlphaMaterialPrivate::init() |
| { |
| Q_Q(QPhongAlphaMaterial); |
| |
| connect(m_ambientParameter, &Qt3DRender::QParameter::valueChanged, |
| this, &QPhongAlphaMaterialPrivate::handleAmbientChanged); |
| connect(m_diffuseParameter, &Qt3DRender::QParameter::valueChanged, |
| this, &QPhongAlphaMaterialPrivate::handleDiffuseChanged); |
| connect(m_specularParameter, &Qt3DRender::QParameter::valueChanged, |
| this, &QPhongAlphaMaterialPrivate::handleSpecularChanged); |
| connect(m_shininessParameter, &Qt3DRender::QParameter::valueChanged, |
| this, &QPhongAlphaMaterialPrivate::handleShininessChanged); |
| |
| m_phongAlphaGL3Shader->setVertexShaderCode(QShaderProgram::loadSource(QUrl(QStringLiteral("qrc:/shaders/gl3/default.vert")))); |
| m_phongAlphaGL3ShaderBuilder->setParent(q); |
| m_phongAlphaGL3ShaderBuilder->setShaderProgram(m_phongAlphaGL3Shader); |
| m_phongAlphaGL3ShaderBuilder->setFragmentShaderGraph(QUrl(QStringLiteral("qrc:/shaders/graphs/phong.frag.json"))); |
| m_phongAlphaGL3ShaderBuilder->setEnabledLayers({QStringLiteral("diffuse"), |
| QStringLiteral("specular"), |
| QStringLiteral("normal")}); |
| |
| m_phongAlphaGL2ES2Shader->setVertexShaderCode(QShaderProgram::loadSource(QUrl(QStringLiteral("qrc:/shaders/es2/default.vert")))); |
| m_phongAlphaGL2ES2ShaderBuilder->setParent(q); |
| m_phongAlphaGL2ES2ShaderBuilder->setShaderProgram(m_phongAlphaGL2ES2Shader); |
| m_phongAlphaGL2ES2ShaderBuilder->setFragmentShaderGraph(QUrl(QStringLiteral("qrc:/shaders/graphs/phong.frag.json"))); |
| m_phongAlphaGL2ES2ShaderBuilder->setEnabledLayers({QStringLiteral("diffuse"), |
| QStringLiteral("specular"), |
| QStringLiteral("normal")}); |
| |
| m_phongAlphaRHIShader->setVertexShaderCode(QShaderProgram::loadSource(QUrl(QStringLiteral("qrc:/shaders/rhi/default.vert")))); |
| m_phongAlphaRHIShaderBuilder->setParent(q); |
| m_phongAlphaRHIShaderBuilder->setShaderProgram(m_phongAlphaRHIShader); |
| m_phongAlphaRHIShaderBuilder->setFragmentShaderGraph(QUrl(QStringLiteral("qrc:/shaders/graphs/phong.frag.json"))); |
| m_phongAlphaRHIShaderBuilder->setEnabledLayers({QStringLiteral("diffuse"), |
| QStringLiteral("specular"), |
| QStringLiteral("normal")}); |
| |
| m_phongAlphaGL3Technique->graphicsApiFilter()->setApi(QGraphicsApiFilter::OpenGL); |
| m_phongAlphaGL3Technique->graphicsApiFilter()->setMajorVersion(3); |
| m_phongAlphaGL3Technique->graphicsApiFilter()->setMinorVersion(1); |
| m_phongAlphaGL3Technique->graphicsApiFilter()->setProfile(QGraphicsApiFilter::CoreProfile); |
| |
| m_phongAlphaGL2Technique->graphicsApiFilter()->setApi(QGraphicsApiFilter::OpenGL); |
| m_phongAlphaGL2Technique->graphicsApiFilter()->setMajorVersion(2); |
| m_phongAlphaGL2Technique->graphicsApiFilter()->setMinorVersion(0); |
| m_phongAlphaGL2Technique->graphicsApiFilter()->setProfile(QGraphicsApiFilter::NoProfile); |
| |
| m_phongAlphaES2Technique->graphicsApiFilter()->setApi(QGraphicsApiFilter::OpenGLES); |
| m_phongAlphaES2Technique->graphicsApiFilter()->setMajorVersion(2); |
| m_phongAlphaES2Technique->graphicsApiFilter()->setMinorVersion(0); |
| m_phongAlphaES2Technique->graphicsApiFilter()->setProfile(QGraphicsApiFilter::NoProfile); |
| |
| m_phongAlphaRHITechnique->graphicsApiFilter()->setApi(QGraphicsApiFilter::RHI); |
| m_phongAlphaRHITechnique->graphicsApiFilter()->setMajorVersion(1); |
| m_phongAlphaRHITechnique->graphicsApiFilter()->setMinorVersion(0); |
| |
| m_filterKey->setParent(q); |
| m_filterKey->setName(QStringLiteral("renderingStyle")); |
| m_filterKey->setValue(QStringLiteral("forward")); |
| |
| m_phongAlphaGL3Technique->addFilterKey(m_filterKey); |
| m_phongAlphaGL2Technique->addFilterKey(m_filterKey); |
| m_phongAlphaES2Technique->addFilterKey(m_filterKey); |
| m_phongAlphaRHITechnique->addFilterKey(m_filterKey); |
| |
| m_blendState->setSourceRgb(QBlendEquationArguments::SourceAlpha); |
| m_blendState->setDestinationRgb(QBlendEquationArguments::OneMinusSourceAlpha); |
| m_blendEquation->setBlendFunction(QBlendEquation::Add); |
| |
| m_phongAlphaGL3RenderPass->setShaderProgram(m_phongAlphaGL3Shader); |
| m_phongAlphaGL2RenderPass->setShaderProgram(m_phongAlphaGL2ES2Shader); |
| m_phongAlphaES2RenderPass->setShaderProgram(m_phongAlphaGL2ES2Shader); |
| m_phongAlphaRHIRenderPass->setShaderProgram(m_phongAlphaRHIShader); |
| |
| m_phongAlphaGL3RenderPass->addRenderState(m_noDepthMask); |
| m_phongAlphaGL3RenderPass->addRenderState(m_blendState); |
| m_phongAlphaGL3RenderPass->addRenderState(m_blendEquation); |
| |
| m_phongAlphaGL2RenderPass->addRenderState(m_noDepthMask); |
| m_phongAlphaGL2RenderPass->addRenderState(m_blendState); |
| m_phongAlphaGL2RenderPass->addRenderState(m_blendEquation); |
| |
| m_phongAlphaES2RenderPass->addRenderState(m_noDepthMask); |
| m_phongAlphaES2RenderPass->addRenderState(m_blendState); |
| m_phongAlphaES2RenderPass->addRenderState(m_blendEquation); |
| |
| m_phongAlphaRHIRenderPass->addRenderState(m_noDepthMask); |
| m_phongAlphaRHIRenderPass->addRenderState(m_blendState); |
| m_phongAlphaRHIRenderPass->addRenderState(m_blendEquation); |
| |
| m_phongAlphaGL3Technique->addRenderPass(m_phongAlphaGL3RenderPass); |
| m_phongAlphaGL2Technique->addRenderPass(m_phongAlphaGL2RenderPass); |
| m_phongAlphaES2Technique->addRenderPass(m_phongAlphaES2RenderPass); |
| m_phongAlphaRHITechnique->addRenderPass(m_phongAlphaRHIRenderPass); |
| |
| m_phongEffect->addTechnique(m_phongAlphaGL3Technique); |
| m_phongEffect->addTechnique(m_phongAlphaGL2Technique); |
| m_phongEffect->addTechnique(m_phongAlphaES2Technique); |
| m_phongEffect->addTechnique(m_phongAlphaRHITechnique); |
| |
| m_phongEffect->addParameter(m_ambientParameter); |
| m_phongEffect->addParameter(m_diffuseParameter); |
| m_phongEffect->addParameter(m_specularParameter); |
| m_phongEffect->addParameter(m_shininessParameter); |
| |
| q->setEffect(m_phongEffect); |
| } |
| |
| void QPhongAlphaMaterialPrivate::handleAmbientChanged(const QVariant &var) |
| { |
| Q_Q(QPhongAlphaMaterial); |
| emit q->ambientChanged(var.value<QColor>()); |
| } |
| |
| void QPhongAlphaMaterialPrivate::handleDiffuseChanged(const QVariant &var) |
| { |
| Q_Q(QPhongAlphaMaterial); |
| emit q->diffuseChanged(var.value<QColor>()); |
| emit q->alphaChanged(var.value<QColor>().alphaF()); |
| } |
| |
| void QPhongAlphaMaterialPrivate::handleSpecularChanged(const QVariant &var) |
| { |
| Q_Q(QPhongAlphaMaterial); |
| emit q->specularChanged(var.value<QColor>()); |
| } |
| |
| void QPhongAlphaMaterialPrivate::handleShininessChanged(const QVariant &var) |
| { |
| Q_Q(QPhongAlphaMaterial); |
| emit q->shininessChanged(var.toFloat()); |
| } |
| |
| /*! |
| \class Qt3DExtras::QPhongAlphaMaterial |
| |
| \brief The QPhongAlphaMaterial class provides a default implementation of |
| the phong lighting effect with alpha. |
| \inmodule Qt3DExtras |
| \since 5.7 |
| \inherits Qt3DRender::QMaterial |
| |
| \deprecated |
| This class is deprecated; use QDiffuseSpecularMaterial instead. |
| |
| The phong lighting effect is based on the combination of 3 lighting components ambient, diffuse |
| and specular. The relative strengths of these components are controlled by means of their |
| reflectivity coefficients which are modelled as RGB triplets: |
| |
| \list |
| \li Ambient is the color that is emitted by an object without any other light source. |
| \li Diffuse is the color that is emitted for rought surface reflections with the lights. |
| \li Specular is the color emitted for shiny surface reflections with the lights. |
| \li The shininess of a surface is controlled by a float property. |
| \li Alpha is the transparency of the surface between 0 (fully transparent) and 1 (opaque). |
| \endlist |
| |
| This material uses an effect with a single render pass approach and performs per fragment |
| lighting. Techniques are provided for OpenGL 2, OpenGL 3 or above as well as OpenGL ES 2. |
| */ |
| |
| /*! |
| Constructs a new QPhongAlphaMaterial instance with parent object \a parent. |
| */ |
| QPhongAlphaMaterial::QPhongAlphaMaterial(QNode *parent) |
| : QMaterial(*new QPhongAlphaMaterialPrivate, parent) |
| { |
| Q_D(QPhongAlphaMaterial); |
| d->init(); |
| |
| QObject::connect(d->m_blendEquation, &Qt3DRender::QBlendEquation::blendFunctionChanged, |
| this, &QPhongAlphaMaterial::blendFunctionArgChanged); |
| QObject::connect(d->m_blendState, &Qt3DRender::QBlendEquationArguments::destinationAlphaChanged, |
| this, &QPhongAlphaMaterial::destinationAlphaArgChanged); |
| QObject::connect(d->m_blendState, &Qt3DRender::QBlendEquationArguments::destinationRgbChanged, |
| this, &QPhongAlphaMaterial::destinationRgbArgChanged); |
| QObject::connect(d->m_blendState, &Qt3DRender::QBlendEquationArguments::sourceAlphaChanged, |
| this, &QPhongAlphaMaterial::sourceAlphaArgChanged); |
| QObject::connect(d->m_blendState, &Qt3DRender::QBlendEquationArguments::sourceRgbChanged, |
| this, &QPhongAlphaMaterial::sourceRgbArgChanged); |
| } |
| |
| /*! |
| Destroys the QPhongAlphaMaterial. |
| */ |
| QPhongAlphaMaterial::~QPhongAlphaMaterial() |
| { |
| } |
| |
| /*! |
| \property QPhongAlphaMaterial::ambient |
| |
| Holds the ambient color. |
| */ |
| QColor QPhongAlphaMaterial::ambient() const |
| { |
| Q_D(const QPhongAlphaMaterial); |
| return d->m_ambientParameter->value().value<QColor>(); |
| } |
| |
| /*! |
| \property QPhongAlphaMaterial::diffuse |
| |
| Holds the diffuse color. |
| */ |
| QColor QPhongAlphaMaterial::diffuse() const |
| { |
| Q_D(const QPhongAlphaMaterial); |
| return d->m_diffuseParameter->value().value<QColor>(); |
| } |
| |
| /*! |
| \property QPhongAlphaMaterial::specular |
| |
| Holds the specular color. |
| */ |
| QColor QPhongAlphaMaterial::specular() const |
| { |
| Q_D(const QPhongAlphaMaterial); |
| return d->m_specularParameter->value().value<QColor>(); |
| } |
| |
| /*! |
| \property QPhongAlphaMaterial::shininess |
| |
| Holds the shininess exponent. |
| */ |
| float QPhongAlphaMaterial::shininess() const |
| { |
| Q_D(const QPhongAlphaMaterial); |
| return d->m_shininessParameter->value().toFloat(); |
| } |
| |
| /*! |
| \property QPhongAlphaMaterial::alpha |
| |
| Holds the alpha component of the object which varies between 0 and 1. |
| |
| The default value is 0.5f. |
| */ |
| float QPhongAlphaMaterial::alpha() const |
| { |
| Q_D(const QPhongAlphaMaterial); |
| return d->m_diffuseParameter->value().value<QColor>().alphaF(); |
| } |
| |
| /*! |
| \property QPhongAlphaMaterial::sourceRgbArg |
| |
| Holds the blend equation source RGB blending argument. |
| |
| \sa Qt3DRender::QBlendEquationArguments::Blending |
| */ |
| QBlendEquationArguments::Blending QPhongAlphaMaterial::sourceRgbArg() const |
| { |
| Q_D(const QPhongAlphaMaterial); |
| return d->m_blendState->sourceRgb(); |
| } |
| |
| /*! |
| \property QPhongAlphaMaterial::destinationRgbArg |
| |
| Holds the blend equation destination RGB blending argument. |
| |
| \sa Qt3DRender::QBlendEquationArguments::Blending |
| */ |
| QBlendEquationArguments::Blending QPhongAlphaMaterial::destinationRgbArg() const |
| { |
| Q_D(const QPhongAlphaMaterial); |
| return d->m_blendState->destinationRgb(); |
| } |
| |
| /*! |
| \property QPhongAlphaMaterial::sourceAlphaArg |
| |
| Holds the blend equation source alpha blending argument. |
| |
| \sa Qt3DRender::QBlendEquationArguments::Blending |
| */ |
| QBlendEquationArguments::Blending QPhongAlphaMaterial::sourceAlphaArg() const |
| { |
| Q_D(const QPhongAlphaMaterial); |
| return d->m_blendState->sourceAlpha(); |
| } |
| |
| /*! |
| \property QPhongAlphaMaterial::destinationAlphaArg |
| |
| Holds the blend equation destination alpha blending argument. |
| |
| \sa Qt3DRender::QBlendEquationArguments::Blending |
| */ |
| QBlendEquationArguments::Blending QPhongAlphaMaterial::destinationAlphaArg() const |
| { |
| Q_D(const QPhongAlphaMaterial); |
| return d->m_blendState->destinationAlpha(); |
| } |
| |
| /*! |
| \property QPhongAlphaMaterial::blendFunctionArg |
| |
| Holds the blend equation function argument. |
| |
| \sa Qt3DRender::QBlendEquation::BlendFunction |
| */ |
| QBlendEquation::BlendFunction QPhongAlphaMaterial::blendFunctionArg() const |
| { |
| Q_D(const QPhongAlphaMaterial); |
| return d->m_blendEquation->blendFunction(); |
| } |
| |
| void QPhongAlphaMaterial::setAmbient(const QColor &ambient) |
| { |
| Q_D(QPhongAlphaMaterial); |
| d->m_ambientParameter->setValue(ambient); |
| } |
| |
| void QPhongAlphaMaterial::setDiffuse(const QColor &diffuse) |
| { |
| Q_D(QPhongAlphaMaterial); |
| QColor currentDiffuse = d->m_diffuseParameter->value().value<QColor>(); |
| QColor newDiffuse = diffuse; |
| newDiffuse.setAlphaF(currentDiffuse.alphaF()); |
| d->m_diffuseParameter->setValue(newDiffuse); |
| } |
| |
| void QPhongAlphaMaterial::setSpecular(const QColor &specular) |
| { |
| Q_D(QPhongAlphaMaterial); |
| d->m_specularParameter->setValue(specular); |
| } |
| |
| void QPhongAlphaMaterial::setShininess(float shininess) |
| { |
| Q_D(QPhongAlphaMaterial); |
| d->m_shininessParameter->setValue(shininess); |
| } |
| |
| void QPhongAlphaMaterial::setAlpha(float alpha) |
| { |
| Q_D(QPhongAlphaMaterial); |
| QColor diffuse = d->m_diffuseParameter->value().value<QColor>(); |
| diffuse.setAlphaF(alpha); |
| d->m_diffuseParameter->setValue(diffuse); |
| } |
| |
| void QPhongAlphaMaterial::setSourceRgbArg(QBlendEquationArguments::Blending sourceRgbArg) |
| { |
| Q_D(QPhongAlphaMaterial); |
| d->m_blendState->setSourceRgb(sourceRgbArg); |
| } |
| |
| void QPhongAlphaMaterial::setDestinationRgbArg(QBlendEquationArguments::Blending destinationRgbArg) |
| { |
| Q_D(QPhongAlphaMaterial); |
| d->m_blendState->setDestinationRgb(destinationRgbArg); |
| } |
| |
| void QPhongAlphaMaterial::setSourceAlphaArg(QBlendEquationArguments::Blending sourceAlphaArg) |
| { |
| Q_D(QPhongAlphaMaterial); |
| d->m_blendState->setSourceAlpha(sourceAlphaArg); |
| } |
| |
| void QPhongAlphaMaterial::setDestinationAlphaArg(QBlendEquationArguments::Blending destinationAlphaArg) |
| { |
| Q_D(QPhongAlphaMaterial); |
| d->m_blendState->setDestinationAlpha(destinationAlphaArg); |
| } |
| |
| void QPhongAlphaMaterial::setBlendFunctionArg(QBlendEquation::BlendFunction blendFunctionArg) |
| { |
| Q_D(QPhongAlphaMaterial); |
| d->m_blendEquation->setBlendFunction(blendFunctionArg); |
| } |
| |
| } // namespace Qt3DExtras |
| |
| QT_END_NAMESPACE |