How to mirror textures while rendering 3D in 5.9?

[poortipant]

Hi

I am developing a Qt application in Qt 5.9 on Windows. The application loads and renders 3d files (.dae). I am following the assimp-cpp samples.

I have come across an bug related to textures where the textures are flipped and displayed. The 3d models are shown incorrectly.

There is a method in the QTextureImage class setMirrored() that allows us to work-around this bug. The problem is, I am not sure how to do this.

Here's my code,

Qt3DRender::QMaterial  *mat = (Qt3DRender::QMaterial  *)(texLoader);
QVector<Qt3DRender::QParameter *> params = mat->parameters();
foreach(Qt3DRender::QParameter *param, params)
{
        QString pname = param->name();
        QVariant var = param->value();
        QVariant::Type mtype = var.type();
        Qt3DRender::QAbstractTexture *tex = (Qt3DRender::QAbstractTexture*) var.value<Qt3DRender::QAbstractTexture*>();
        if(tex)
        {
               QVector<Qt3DRender::QAbstractTextureImage*> teximages = tex->textureImages();
               foreach(Qt3DRender::QAbstractTextureImage *teximage, teximages)
               {
                         Qt3DRender::QTextureImage *myteximage = qobject_cast<Qt3DRender::QTextureImage*>(teximage);
                         if(myteximage)
                         {
                                    myteximage->setMirrored(true);
                         }
               }
       }
}

I get QAbstractTexture *tex as NULL always.
What am I missing here?