ShadowEffect.qml Example File

/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** 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.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of The Qt Company Ltd nor the names of its
**     contributors may be used to endorse or promote products derived
**     from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/

import Qt3D.Core 2.0
import Qt3D.Render 2.0

Effect {
    id: root

    property Texture2D shadowTexture
    property PlanetsLight light

    parameters: [
        Parameter { name: "lightViewProjection"; value: root.light.lightViewProjection },
        Parameter { name: "lightPosition";  value: root.light.lightPosition },
        Parameter { name: "lightIntensity"; value: root.light.lightIntensity },
        Parameter { name: "shadowMapTexture"; value: root.shadowTexture }
    ]

    FilterKey { id: desktopkey; name: "name"; value: "Desktop" }
    FilterKey { id: shadowkey; name: "pass"; value: "shadowmap" }
    FilterKey { id: forwardkey; name : "pass"; value : "forward" }
    FilterKey { id: eskey; name: "name"; value: "ES2" }

    RenderPass {
        id: shadowpass
        filterKeys: [ shadowkey ]

        shaderProgram: ShaderProgram {
            vertexShaderCode:   loadSource("qrc:/shaders/gl3/shadowmap.vert")
            fragmentShaderCode: loadSource("qrc:/shaders/gl3/shadowmap.frag")
        }

        renderStates: [
            PolygonOffset { scaleFactor: 4; depthSteps: 4 },
            DepthTest { depthFunction: DepthTest.Less }
        ]
    }

    RenderPass {
        id: glpass
        filterKeys: [ forwardkey ]

        shaderProgram: ShaderProgram {
            vertexShaderCode:   loadSource("qrc:/shaders/gl3/planetDShadow.vert")
            fragmentShaderCode: loadSource("qrc:/shaders/gl3/planetDShadow.frag")
        }

        // no special render state set => use the default set of states
    }

    RenderPass {
        id: espass
        filterKeys: [ forwardkey ]

        shaderProgram: ShaderProgram {
            vertexShaderCode:   loadSource("qrc:/shaders/es2/planetD.vert")
            fragmentShaderCode: loadSource("qrc:/shaders/es2/planetD.frag")
        }

        // no special render state set => use the default set of states
    }

    techniques: [
        Technique {
            graphicsApiFilter {
                api: GraphicsApiFilter.OpenGL
                profile: GraphicsApiFilter.CoreProfile
                majorVersion: 3
                minorVersion: 2
            }

            filterKeys: [ desktopkey ]

            renderPasses: [ shadowpass, glpass ]
        },
        Technique {
            graphicsApiFilter {
                api: GraphicsApiFilter.OpenGL
                majorVersion: 2
            }

            filterKeys: [ eskey ]

            renderPasses: [ espass ]
        },
        Technique {
            graphicsApiFilter {
                api: GraphicsApiFilter.OpenGLES
                majorVersion: 2
                minorVersion: 0
            }

            filterKeys: [ eskey ]

            renderPasses: [ espass ]
        }
    ]
}