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 ]
          }
      ]
  }