QT3D_QML. loading .3ds files

Pham Hoang

I tried to load a .3ds model.

import Qt3D 2.0
import Qt3D.Render 2.0
import QtQuick 2.1 as QQ2

Entity {
id: sceneRoot

Camera {
    id: camera
    projectionType: CameraLens.PerspectiveProjection
    fieldOfView: 45
    aspectRatio: _window.width / _window.height
    nearPlane: 0.1
    farPlane: 1000.0
    position: Qt.vector3d(0.0, 10.0, 20.0)
    viewCenter: Qt.vector3d(0.0, 0.0, 0.0)
    upVector: Qt.vector3d(0.0, 1.0, 0.0)
}

FrameGraph {
    id : external_forward_renderer
    activeFrameGraph : ForwardRenderer {
        camera: camera
        clearColor: Qt.rgba(0.0, 0.4, 0.7, 1.0)
    }
}

Entity {
    Mesh {
        id: myModel
        source: "file:///C:/Users/Hoang Pham/Desktop/Qt3D-qml/ChallengeForNewApp.3ds"
    }

    Transform {
        id: myModelTransform
        property real scaleFactor: 10

        Scale {
            scale: 1.0 / myModelTransform.scaleFactor
        }
    }

    components: [
        myModel,
        myModelTransform
    ]
}

}

I got crashing error:
Qt3D.Core.ChangeArbiter: void __cdecl Qt3D::QChangeArbiter::createThreadLocalChangeQueue(void *) QThread(0x6b6638, name = "Thread (pooled)")
Qt3D.Core.ChangeArbiter: void __cdecl Qt3D::QChangeArbiter::createThreadLocalChangeQueue(void *) QThread(0x6b63b8, name = "Thread (pooled)")
QMetaObject::indexOfSignal: signal transformsChanged() from Qt3D::QTransform redefined in Qt3D::Quick::Quick3DTransform
Qt3D.Render.Jobs: Entering void __thiscall Qt3D::Render::UpdateWorldTransformJob::run(void) QThread(0x6b63b8, name = "Thread (pooled)")

Program: D:\Dev\qt5\qtbase\lib\libGLESv2d.dll
File: ......\3rdparty\angle\src\common\MemoryBuffer.cpp
Line: 76
Expression: mData

any help for me?

Pham Hoang

It works fine with: source: "file:///C:/Users/Hoang Pham/Desktop/shadow-map-qml/toyplane.obj"
but i still got warning:
QMetaObject::indexOfSignal: signal transformsChanged() from Qt3D::QTransform redefined in Qt3D::Quick::Quick3DTransform
Qt3D.Render.Jobs: Entering void __thiscall Qt3D::Render::UpdateWorldTransformJob::run(void) QThread(0x7a6088, name = "Thread (pooled)")

whats difference here ? obj and 3ds ?

lfberge

I have the same problem. Would be awesome if someone had a solution to this!

Toyplane renders as expected. But other .obj files doesn't. It crashes with some .3ds files, but not others, however still nothing rendered. I dont understand what makes the toyplane.obj differ from other obj-files.

Apperantly Scene3D doesn't support 3ds files at the moment. SceneLoader should do, as it uses assimp. However, that doesn't work for me either, so i reverted to 5.4 and an older verson of Qt3D and got the 3ds files to render.

SGaist

Hi and welcome to devnet,

Can you share both which exact version of Qt you are using ? On which platform ? Where did you get the failing files ?