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// Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import Qt3D.Core 2.0
import Qt3D.Render 2.0
import QtQuick 2.2 as QQ2
import Qt3D.Input 2.0
import Qt3D.Extras 2.0
Entity {
id: sceneRoot
Camera {
id: camera
projectionType: CameraLens.PerspectiveProjection
fieldOfView: 45
aspectRatio: 16/9
nearPlane : 0.1
farPlane : 1000.0
position: Qt.vector3d(0.0, -300.0, 50.0)
upVector: Qt.vector3d(0.0, 1.0, 0.0)
viewCenter: Qt.vector3d(0.0, 0.0, 0.0)
}
FirstPersonCameraController { camera: camera }
components: [
RenderSettings {
activeFrameGraph: ForwardRenderer {
clearColor: Qt.rgba(0, 0.5, 1, 1)
camera: camera
}
// we need to explicitly set the RenderPolicy to AlwaysRender here,
// because a vertex shader will use time-based rendering, so the
// scene will change every frame without the scene-graph changing.
// RenderOnDemand would therefore not render every frame, as it won't
// detect scene-graph changes
renderPolicy: RenderSettings.Always
},
// Event Source will be set by the Qt3DQuickWindow
InputSettings { }
]
property real timeValue: 5
Material {
id: instancedPhongMaterial
effect: Effect {
techniques: Technique {
graphicsApiFilter {
api: GraphicsApiFilter.OpenGL
profile: GraphicsApiFilter.CoreProfile
minorVersion: 2
majorVersion: 3
}
filterKeys: [ FilterKey { name: "renderingStyle"; value: "forward" } ]
renderPasses: RenderPass {
shaderProgram: ShaderProgram {
vertexShaderCode: loadSource("qrc:/instanced.vert")
fragmentShaderCode: loadSource("qrc:/instanced.frag")
}
}
}
}
parameters: Parameter { name: "instanceCount"; value: cylinderMeshRenderer.instanceCount }
}
CylinderMesh {
id: cylinderMeshRenderer
view.instanceCount: 2000
rings: 50
slices: 30
radius: 2.5
length: 5.0
}
Entity {
id: torusEntity
components: [ cylinderMeshRenderer, instancedPhongMaterial ]
}
}
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