[Interest] Understanding issues with Qt3D shadowmap example

[Volker Enderlein]

Am 06/02/2018 um 08:35 schrieb Volker Enderlein:
> Hi,
>
>
> I'm currently playing with the shadowmap example of Qt3D. When having 
> a PlaneMesh at (0, -5, 0), a CuboidMesh (width=height=depth=1) above 
> the PlaneMesh at (0, -4, 0), and a directional light source at (0, 30, 
> 0) no shadow is visible on the plane. Because the CuboidMesh is above 
> the plane I would expect a shadow to be cast on the PlaneMesh. Adding 
> a small change in position of the light say (0.001, 30, 0) procduces a 
> shadow on the PlaneMesh.
>
> Do I miss something important?
>
>
> Cheers Volker
>
Immediately after sending the question to the list, I solved my problem 
by providing a correct upVector to the lightCamera. Previously upVector 
and light direction were collinear :(


Cheers Volker

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