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Diffstat (limited to 'src/extras/defaults/qgoochmaterial.cpp')
| -rw-r--r-- | src/extras/defaults/qgoochmaterial.cpp | 358 |
1 files changed, 358 insertions, 0 deletions
diff --git a/src/extras/defaults/qgoochmaterial.cpp b/src/extras/defaults/qgoochmaterial.cpp new file mode 100644 index 000000000..7b4865734 --- /dev/null +++ b/src/extras/defaults/qgoochmaterial.cpp @@ -0,0 +1,358 @@ +/**************************************************************************** +** +** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the Qt3D module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qgoochmaterial.h" +#include "qgoochmaterial_p.h" +#include <Qt3DRender/qfilterkey.h> +#include <Qt3DRender/qeffect.h> +#include <Qt3DRender/qgraphicsapifilter.h> +#include <Qt3DRender/qparameter.h> +#include <Qt3DRender/qrenderpass.h> +#include <Qt3DRender/qtechnique.h> + +#include <QtCore/qurl.h> + +QT_BEGIN_NAMESPACE + +namespace Qt3DRender { + +QGoochMaterialPrivate::QGoochMaterialPrivate() + : QMaterialPrivate() + , m_effect(new QEffect) + , m_diffuseParameter(new QParameter(QStringLiteral("kd"), QColor::fromRgbF(0.0f, 0.0f, 0.0f))) + , m_specularParameter(new QParameter(QStringLiteral("ks"), QColor::fromRgbF(0.0f, 0.0f, 0.0f))) + , m_coolParameter(new QParameter(QStringLiteral("kblue"), QColor::fromRgbF(0.0f, 0.0f, 0.4f))) + , m_warmParameter(new QParameter(QStringLiteral("kyellow"), QColor::fromRgbF(0.4f, 0.4f, 0.0f))) + , m_alphaParameter(new QParameter(QStringLiteral("alpha"), 0.25f)) + , m_betaParameter(new QParameter(QStringLiteral("beta"), 0.5f)) + , m_shininessParameter(new QParameter(QStringLiteral("shininess"), 100.0f)) + , m_gl3Technique(new QTechnique) + , m_gl2Technique(new QTechnique) + , m_es2Technique(new QTechnique) + , m_gl3RenderPass(new QRenderPass) + , m_gl2RenderPass(new QRenderPass) + , m_es2RenderPass(new QRenderPass) + , m_gl3Shader(new QShaderProgram) + , m_gl2ES2Shader(new QShaderProgram) + , m_filterKey(new QFilterKey) +{ +} + +void QGoochMaterialPrivate::init() +{ + Q_Q(QGoochMaterial); + + connect(m_diffuseParameter, &Qt3DRender::QParameter::valueChanged, + this, &QGoochMaterialPrivate::handleDiffuseChanged); + connect(m_specularParameter, &Qt3DRender::QParameter::valueChanged, + this, &QGoochMaterialPrivate::handleSpecularChanged); + connect(m_coolParameter, &Qt3DRender::QParameter::valueChanged, + this, &QGoochMaterialPrivate::handleCoolChanged); + connect(m_warmParameter, &Qt3DRender::QParameter::valueChanged, + this, &QGoochMaterialPrivate::handleWarmChanged); + connect(m_alphaParameter, &Qt3DRender::QParameter::valueChanged, + this, &QGoochMaterialPrivate::handleAlphaChanged); + connect(m_betaParameter, &Qt3DRender::QParameter::valueChanged, + this, &QGoochMaterialPrivate::handleBetaChanged); + connect(m_shininessParameter, &Qt3DRender::QParameter::valueChanged, + this, &QGoochMaterialPrivate::handleShininessChanged); + + m_gl3Shader->setVertexShaderCode(QShaderProgram::loadSource(QUrl(QStringLiteral("qrc:/shaders/gl3/gooch.vert")))); + m_gl3Shader->setFragmentShaderCode(QShaderProgram::loadSource(QUrl(QStringLiteral("qrc:/shaders/gl3/gooch.frag")))); + m_gl2ES2Shader->setVertexShaderCode(QShaderProgram::loadSource(QUrl(QStringLiteral("qrc:/shaders/es2/gooch.vert")))); + m_gl2ES2Shader->setFragmentShaderCode(QShaderProgram::loadSource(QUrl(QStringLiteral("qrc:/shaders/es2/gooch.frag")))); + + m_gl3Technique->graphicsApiFilter()->setApi(QGraphicsApiFilter::OpenGL); + m_gl3Technique->graphicsApiFilter()->setMajorVersion(3); + m_gl3Technique->graphicsApiFilter()->setMinorVersion(1); + m_gl3Technique->graphicsApiFilter()->setProfile(QGraphicsApiFilter::CoreProfile); + + m_gl2Technique->graphicsApiFilter()->setApi(QGraphicsApiFilter::OpenGL); + m_gl2Technique->graphicsApiFilter()->setMajorVersion(2); + m_gl2Technique->graphicsApiFilter()->setMinorVersion(0); + m_gl2Technique->graphicsApiFilter()->setProfile(QGraphicsApiFilter::NoProfile); + + m_es2Technique->graphicsApiFilter()->setApi(QGraphicsApiFilter::OpenGLES); + m_es2Technique->graphicsApiFilter()->setMajorVersion(2); + m_es2Technique->graphicsApiFilter()->setMinorVersion(0); + m_es2Technique->graphicsApiFilter()->setProfile(QGraphicsApiFilter::NoProfile); + + m_filterKey->setParent(q); + m_filterKey->setName(QStringLiteral("renderingStyle")); + m_filterKey->setValue(QStringLiteral("forward")); + + m_gl3Technique->addFilterKey(m_filterKey); + m_gl2Technique->addFilterKey(m_filterKey); + m_es2Technique->addFilterKey(m_filterKey); + + m_gl3RenderPass->setShaderProgram(m_gl3Shader); + m_gl2RenderPass->setShaderProgram(m_gl2ES2Shader); + m_es2RenderPass->setShaderProgram(m_gl2ES2Shader); + + m_gl3Technique->addRenderPass(m_gl3RenderPass); + m_gl2Technique->addRenderPass(m_gl2RenderPass); + m_es2Technique->addRenderPass(m_es2RenderPass); + + m_effect->addTechnique(m_gl3Technique); + m_effect->addTechnique(m_gl2Technique); + m_effect->addTechnique(m_es2Technique); + + m_effect->addParameter(m_diffuseParameter); + m_effect->addParameter(m_specularParameter); + m_effect->addParameter(m_coolParameter); + m_effect->addParameter(m_warmParameter); + m_effect->addParameter(m_alphaParameter); + m_effect->addParameter(m_betaParameter); + m_effect->addParameter(m_shininessParameter); + + q->setEffect(m_effect); +} + +void QGoochMaterialPrivate::handleDiffuseChanged(const QVariant &var) +{ + Q_Q(QGoochMaterial); + emit q->diffuseChanged(var.value<QColor>()); +} + +void QGoochMaterialPrivate::handleSpecularChanged(const QVariant &var) +{ + Q_Q(QGoochMaterial); + emit q->specularChanged(var.value<QColor>()); +} + +void QGoochMaterialPrivate::handleCoolChanged(const QVariant &var) +{ + Q_Q(QGoochMaterial); + emit q->coolChanged(var.value<QColor>()); +} + +void QGoochMaterialPrivate::handleWarmChanged(const QVariant &var) +{ + Q_Q(QGoochMaterial); + emit q->warmChanged(var.value<QColor>()); +} + +void QGoochMaterialPrivate::handleAlphaChanged(const QVariant &var) +{ + Q_Q(QGoochMaterial); + emit q->alphaChanged(var.toFloat()); +} + +void QGoochMaterialPrivate::handleBetaChanged(const QVariant &var) +{ + Q_Q(QGoochMaterial); + emit q->betaChanged(var.toFloat()); +} + +void QGoochMaterialPrivate::handleShininessChanged(const QVariant &var) +{ + Q_Q(QGoochMaterial); + emit q->shininessChanged(var.toFloat()); +} + +/*! + \class Qt3DRender::QGoochMaterial + \brief The QGoochMaterial provides a material that implements the Gooch + shading model, popular in CAD and CAM applications. + \inmodule Qt3DRender + \since 5.5 + + The Gooch lighting model uses both color and brightness to help show the + curvature of 3D surfaces. This is often better than models such as Phong + that rely purely upon changes in brightness. In situations such as in CAD + and CAM applications where photorealism is not a goal, the Gooch shading + model in conjunction with some kind of silhouette edge inking is a popular + solution. + + The Gooch lighting model is explained fully in the \l{original Gooch + paper}. The Gooch model mixes a diffuse objetc color with a user-provided + cool color and warm color to produce the end points of a color ramp that is + used to shade the object based upon the cosine of the angle between the + vector from the fragment to the light source and the fragment's normal + vector. Optionally, a specular highlight can be added on top. The relative + contributions to the cool and warm colors by the diffuse color are + controlled by the alpha and beta properties respecitvely. + + 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 Qt3DCore::QGoochMaterial instance with parent object \a parent. +*/ +QGoochMaterial::QGoochMaterial(QNode *parent) + : QMaterial(*new QGoochMaterialPrivate, parent) +{ + Q_D(QGoochMaterial); + d->init(); +} + +QGoochMaterial::QGoochMaterial(QGoochMaterialPrivate &dd, QNode *parent) + : QMaterial(dd, parent) +{ + Q_D(QGoochMaterial); + d->init(); +} + +/*! + \property Qt3DRender::QGoochMaterial::diffuse + + Holds the current diffuse color. +*/ +QColor QGoochMaterial::diffuse() const +{ + Q_D(const QGoochMaterial); + return d->m_diffuseParameter->value().value<QColor>(); +} + +/*! + \property Qt3DRender::QGoochMaterial::specular + + Holds the current specular color. +*/ +QColor QGoochMaterial::specular() const +{ + Q_D(const QGoochMaterial); + return d->m_specularParameter->value().value<QColor>(); +} + +/*! + \property Qt3DRender::QGoochMaterial::cool + + Holds the current cool color. +*/ +QColor QGoochMaterial::cool() const +{ + Q_D(const QGoochMaterial); + return d->m_coolParameter->value().value<QColor>(); +} + +/*! + \property Qt3DRender::QGoochMaterial::warm + + Holds the current warm color. +*/ +QColor QGoochMaterial::warm() const +{ + Q_D(const QGoochMaterial); + return d->m_warmParameter->value().value<QColor>(); +} + +/*! + \property Qt3DRender::QGoochMaterial::alpha + + Holds the current alpha value. The start point of the color ramp + used by the Gooch shader is calculated as {c = cool + alpha * diffuse}. +*/ +float QGoochMaterial::alpha() const +{ + Q_D(const QGoochMaterial); + return d->m_alphaParameter->value().toFloat(); +} + +/*! + \property Qt3DRender::QGoochMaterial::beta + + Holds the current beta value. The start point of the color ramp + used by the Gooch shader is calculated as {c = warm + beta * diffuse}. +*/ +float QGoochMaterial::beta() const +{ + Q_D(const QGoochMaterial); + return d->m_betaParameter->value().toFloat(); +} + +/*! + \property Qt3DRender::QGoochMaterial::shininess + + Holds the current shininess value. Higher values of shininess result in + a smaller and brighter highlight. +*/ +float QGoochMaterial::shininess() const +{ + Q_D(const QGoochMaterial); + return d->m_shininessParameter->value().toFloat(); +} + +void QGoochMaterial::setDiffuse(const QColor &diffuse) +{ + Q_D(QGoochMaterial); + return d->m_diffuseParameter->setValue(diffuse); +} + +void QGoochMaterial::setSpecular(const QColor &specular) +{ + Q_D(QGoochMaterial); + return d->m_specularParameter->setValue(specular); +} + +void QGoochMaterial::setCool(const QColor &cool) +{ + Q_D(QGoochMaterial); + return d->m_coolParameter->setValue(cool); +} + +void QGoochMaterial::setWarm(const QColor &warm) +{ + Q_D(QGoochMaterial); + return d->m_warmParameter->setValue(warm); +} + +void QGoochMaterial::setAlpha(float alpha) +{ + Q_D(QGoochMaterial); + return d->m_alphaParameter->setValue(alpha); +} + +void QGoochMaterial::setBeta(float beta) +{ + Q_D(QGoochMaterial); + return d->m_betaParameter->setValue(beta); +} + +void QGoochMaterial::setShininess(float shininess) +{ + Q_D(QGoochMaterial); + return d->m_shininessParameter->setValue(shininess); +} + +} + +QT_END_NAMESPACE |